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    HUBEI AGRICULTURAL SCIENCES 2021 Vol.60
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    Research progress on chemical compositions and pharmacological effects of Sophorae flavescentis radix
    SU Jia-sheng, LI Xiao-xia, JIANG Ya-xian, LIU Xiao, WANG Zhi-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 5-9.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.001
    Abstract （734）      PDF （1493KB）（319）       Save
    Sophorae flavescentis radix has anti-inflammatory,analgesic,bacteriostatic,antiviral,antitumor and other pharmacological effects.The correlational research of chemical compositions,pharmacological effects and clinical applications of Sophorae flavescentis radix was summarized and analysised,in order to provide references for its further research,development and utilization.
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    Study on compensation effect of crop rewatering for drought
    TANG Jian, FENG Juan, LIU Yun-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 10-13.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.002
    Abstract （515）      PDF （1427KB）（208）       Save
    China's water resources are unevenly distributed,and drought seriously affects agricultural production.Many studies have shown that after a certain degree of drought stress,rehydrated crops will gradually return to normal growth state,and even accelerate the growth of crops,showing compensation effect.However,the extent of compensation to crops and how to adjust agricultural irrigation system according to the compensation effect and reduce the adverse effects of drought stress on agricultural production need to be clarified.Through summarizing the related research on the effects of drought rewatering compensation effect on the physiology,morphology and yield of various crops,the growth characteristics of crops after rewatering were further understood,which provided certain theoretical reference for improving the research on compensation effect of crop drought rewatering.
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    Effects of planting densities and nitrogen application rates on yield of cotton variety Gangmian No.10
    ZHANG Hua-chong, YAN Zhen-hua, ZHAO Shu-qi, HUANG Xiao-li, DAI Bao-sheng, LI Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 14-16.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.003
    Abstract （392）      PDF （1479KB）（137）       Save
    To study effects of different planting densities and nitrogen application rates on yield of cotton variety Gangmian No.10,the factors of nitrogen application rates and planting density were designed with three levels in this experiment.The results showed that nitrogen application rates,planting density and their interactions had highly significant effects on the yield of Gangmian No.10.When the density was 33 000 plants/hm2 and nitrogen application rates was 225 kg/hm2,the yield was the highest.
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    Effect of cold waterlogged field improvement on root growth and yield of rice
    YANG Kang, ZHANG Zhi-sheng, QU He-ping, LIU Wei, YANG Han, QIN Xiao-yin, HUANG Zhi-mou
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 17-19.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.004
    Abstract （430）      PDF （1508KB）（208）       Save
    Taking the cold waterlogged field in Xianning city of Hubei province as the test object,the different improvement measures were integrated to form a complete set of technical models,and the best choice of the cold waterlogged field improvement model was studied through field experiments.The conventional technology model (CK) was used as a control to study the effects of micro-fertilizer technology models (T1) and warm field technology models (T2) on the root development,dry matter content and yield of rice (Oryza sativa L.) in cold-soaked fields.The results showed that T1 and T2 could promote root growth and development,increase dry matter content,the ratio of roots and shoots,and the yield of rice.Compared with CK,T1 increased yeild by 12.98% and T2 increased yeild by 21.41%.In summary,the integration of different cold waterlogged field improvement measures can enhance the root morphology development,increase the dry matter content of rice,and achieve a significant increase in yield.Among them,T2 reduces the impact of cold water stagnation through integrated trenching and drainage measures,and the yield increase effect is better than T1.
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    Study on the nitrogen and phosphorous removal effects on eutrophic water by aquatic plants and Daphnia magna
    ZHANG Chun-xue, WANG Han-yang, WEI Xiao-cheng, ZHENG Xiang-qun, YANG Bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 20-26.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.005
    Abstract （511）      PDF （4655KB）（216）       Save
    To improve the deficiencies of traditional bioremediation technology and further develop the combined bioremediation technology,based on the biomanipulation theory and the aquatic plant restoration theory,combining with current status of target water bodies,the effects of single organisms and the combination of two organisms on the restoration of eutrophic water were investigated by taking Daphnia magna as the representative of filter-feeding animals,Myriophyllum aquaticum and Ceratophyllum demersum as the representatives of submerged plants.The results showed that D.magna could reduce the concentration of total nitrogen (TN),total phosphorus (TP) and nitrate (NO3--N) in water,but not significantly.The concentration of ammonia (NH4+-N) increases with the density of D.magna.The reduction effect of M.aquaticum and C.demersum on TN,TP,NO3--N and NH4+-N was significant,especially M.aquaticum’s.Compared with the single D.magna treatment,the submerged plants - D.magna combined treatment has better inhibitory effect on the water nutrients.Both M.aquaticum and C.demersum can significantly inhibit the increase of NH4+-N concentration caused by the excretion and death of D.magna.Among them,the combination of low-density D.magna (25 ind/L) and M.aquaticum has the most significant reduction effect.
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    Cause analysis of vegetation coverage decline in Dongting lake area
    HAN Qin-zhe, SHAO Jia-li, CHEN Lei-shi, ZHOU Bi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 27-31.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.006
    Abstract （679）      PDF （1631KB）（145）       Save
    Vegetation coverage and water area were calculated based on EOS/MODIS and FY-3 /MERSI satellite data,combined with surface classification data,meteorological data,nighttime light image,Hunan statistical yearbook data,through quantitative calculation,to explore the climatic and anthropogenic causes of vegetation coverage decline of different surface types in Dongting lake area.The results showed that the decrease of vegetation coverage in Dongting lake area from 2000 to 2019 was mainly concentrated in paddy fields,population gathering areas and wetland areas;From the perspective of climate impact,vegetation decline in paddy fields and population gathering areas was closely related to less precipitation in May to August,the decreased area of wetland vegetation coverage was related to climate change and water area,the decrease degree of vegetation coverage was more closely related to the change of water area,and water storage in the Three Gorges could reduce the impact of water on wetland vegetation.From the perspective of human factors,the vegetation coverage of paddy field,population gathering area and wetland was respectively affected by the agricultural planting structure,regional GDP,nighttime light index,and poplar cutting.
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    Spatial-temporal variable characteristics of climate in the eastern Hexi corridor during the recent sixty years
    LUO Xiao-ling, LI Yan-ying, YANG Mei, NIE Xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 32-36.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.007
    Abstract （444）      PDF （1526KB）（346）       Save
    Based on the date of four weather stations’temperature,precipitation,strong wind and sandstorm in Wuwei city of Gansu province from 1959 to 2018,its spatial-temporal variable characteristics were analyzed using linear tendency estimation,slip t-examine,wavelet method,power spectrum,et al.The results showed that the annual mean temperature increased constantly with an interannual propensity rate of 0.40 ℃/10a,and this warming trend was sudden.The seasonal warming speed from high to low was winter,autumn,spring and summer.The spatial variation was characterized by a faster warming speed in the north-central than in the south.Precipitation showed fluctuation increasing trend with an interannual propensity rate of 6.1 mm/10a.Except for autumn,precipitation in other seasons showed an increasing trend,and increase rate from big to small was summer,spring and winter.The spatial variation of precipitation was fast in the south and slow in the middle.There was a downward trend in windy weather with an interannual propensity rate of -0.4 d/10a.The decrease in spring winds offset the increase in winter,and the most significant decrease was in summer.Spatial change of strong wind showed an increasing trend in the south and a decreasing trend in the north-central.The sandstorm significantly reduced with an interannual propensity rate of -2.8 d/10a,and its reduced speed from big to small was spring and summer,winter,autumn.In space,there was a gradual increase in the speed reduction of sandstorm from south to north.The trend of warm and humid climate in Wuwei city was obvious.The wind and sandstorm have been significantly reduced,the ecological environment has been improved with the increase of comprehensive management of the Shiyang river basin.
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    Main characteristics of climate and its impact on agriculture in Hubei province in 2019
    LIU Ke-qun, ZHOU Jin-lian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 37-41.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.008
    Abstract （910）      PDF （4601KB）（334）       Save
    Meteorological disasters in Hubei province in 2019 were severe.The annual average temperature was 17.1 ℃,0.7 ℃ higher than the normal year.The temperature from late July to mid-November was 1 ℃ higher than the normal year,of which the temperature in the area from Yichang to the east of Xiangyang was 1.5 to 2.8 ℃ higher than the normal year.The average precipitation was 906.1 mm,25% less than the normal year,of which the precipitation from July to September was 174.2 mm,above 50% less than the normal year.The annual sunshine hours were 1 544.3 hours,8.8% less than the normal year,which was more in March,July,August and September,and less in other months.The two major meteorological disasters in 2019 were high temperature with continuing drought in autumn and low temperature with continuing rainfall in winter,which were the most serious disasters in Hubei province in the past 70 years.The high temperature with continuing drought in autumn resulted in a 7.93% reduction in the total output of autumn grain compared with the previous year.The low temperature with continuing rainfall in winter caused low temperature and high humidity in greenhouse,serious diseases in facility agriculture and high seedling mortality.
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    Determination of freezing injury index in dormancy period of winter jujube trees cultivated by open-air
    SUN Ai-liang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 42-45.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.009
    Abstract （516）      PDF （1488KB）（335）       Save
    By investigating the occurrence of freezing injury in winter dormancy period of winter jujube trees cultivated in the open air from 1990 to 2019 in Huanghua city,Hubei province,and comparing the occurrence of strong cooling weather process with extreme lowest air temperature Tmin≤-13.0 ℃ in the same period,five meteorological factors,which may have a great influence on the freeze injury of winter jujube trees during dormancy,were selected,including the extreme lowest temperature Tmin,the duration,the duration days of Tmin≤-13.0 ℃,the duration days of Tmin≤-15.0 ℃ and the duration days of Tmin≤-17.0 ℃.Four significant factors were selected by stepwise regression method to establish the function equation,and each factor was analyzed in combination with the occurrence of freeze injury in dormancy period of winter jujube trees over the years.The agrometeorological index of freeze injury in dormancy period of winter jujube trees was obtained.The results showed that the influence factors of extreme weather on the freeze injury of winter jujube were not only Tmin,but also the duration days of Tmin≤-13.0 ℃,Tmin≤-15.0℃ and Tmin≤-17.0℃,respectively.When the extreme lowest temperature Tmin≤-13.0 ℃ lasts for 2 days,and Tmin≤-15.0 ℃ lasts for 1 day,slight freezing injury will occur;When Tmin≤-13.0 ℃ lasts for more than 3 days,and Tmin≤-15.0 ℃ lasts for 1 to 2 days,moderate frost damage will occur;When the extreme temperature Tmin≤-15.0 ℃ lasts for more than 2 days or the extreme minimum temperature ≤-17.0 ℃ lasts for more than 1 day,severe frost damage will occur.The established indexes of frost damage were backtested.Combined with the literature,the frost damage of winter jujube trees producing areas such as Tianjin city and Shandong province was examined.The comprehensive fitting rate reached 78.5%,which indicated that the established indexes had practical production guidance significance.
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    Study on the evolution of land use structure in Hegang city under the background of urban shrinkage
    GENG Cong, DONG Hui-he, WU Si-yu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 46-52.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.010
    Abstract （437）      PDF （4003KB）（419）       Save
    Based on landsat satellite remote sensing image and supported by ENVI and ArcGIS technology,Markov transfer matrix,barycenter transfer model and quadrant analysis method were used to study the changes of land use structure in the central urban area of the shrinking city Hegang from 2011 to 2016.The results showed that,from 2001 to 2016,the population of Hegang city kept losing,while the land for construction continued to increase.The change in quantity of land use types was “two increases and two decreases”,and the spatial distribution pattern basically remained unchanged.The transfer amount of cultivated land and forest land was large,and the transfer amount of water area was the smallest.The main source and destination of cultivated land were all forest land.Construction land expanded to occupy a large area of arable land,but the most transfer amount was changed for arable land,forest land.Among all types of land,the largest distance of shift of the center of gravity was the water area,and the smallest was the cultivated land.The center of gravity of cultivated land shifted to the southeast,and the center of gravity of construction land shifted to the southwest.The transfer direction of the two was opposite.The spatial evolution of construction land showed the characteristic of “north retreat and south expansion”,and the land in the Xing’an district has undergone dramatic changes.Construction land contracted mainly along the coal industry belt and rural settlements.
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    Analysis on raindrop size distribution of typical stations in China during rainy season
    LIU Zhen, WU Xue-yuan, YU Yu, REN Zhi-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 53-59.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.011
    Abstract （479）      PDF （4415KB）（497）       Save
    By using the data observed by laser raindrop spectrometer between 2018 and 2019,the raindrop size distribution characteristics of typical stations,which were selected by regions in China,were analyzed.The results show that,the correlation coefficients for hourly rainfall intensities calculated from minute raindrop spectrometer data and rain gauge data respectively,all exceeded 0.92,and the average differences were negative and increased with rainfall intensity.The frequency percentage patterns of different raindrop diameter classes showed double peaks,but the quality percentage patterns showed multi peaks.The contribution present to number concentration of small raindrop with a diameter less than 1 mm was 77.8%,however,the contribution present to rainfall intensity only was 18.1%.Large raindrop with a diameter more than 2 mm,contributed 2.6% to number concentration and 41.8% to rainfall intensity.When taking the effect of raindrop velocity into account,the contribution of small raindrop increased 9.7 percent,meanwhile the contributions of middle and large raindrop decreased.With decreased of rainfall intensity,the number concentrations of large raindrop decreased,the super large raindrops disappeared,and raindrop spectral width became narrow.However,variations on number concentrations of small raindrop differed by stations.
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    Calculation of agricultural carbon emission and analysis of influencing factors in China：Research based on the data of provincial panel
    ZHANG Song-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 60-64.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.012
    Abstract （929）      PDF （1781KB）（339）       Save
    Based on the provincial panel data,the agricultural carbon emissions and carbon emission intensity in China was estimated,and the spatial differences and temporal trends was analyzed.At the same time,according to Kaya identity and LMDI index decomposition method,the factors that have significant impact on China’s agricultural carbon emissions were summarized.The results showed that from 2000 to 2018,the intensity of agricultural carbon emissions,the level of non-urbanization and human resources investment were the main factors to curb carbon emissions,while the agricultural structure,agricultural production efficiency and economic scale were the main promoting factors of carbon emissions.
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    Effects of selenium fertilizer with trunk injection on selenium content and quality of Kyoho grape
    WAN Hai-ying, LONG Lan, YIN Hong-qing, TIAN Teng-fei, PI Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 65-67.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.013
    Abstract （530）      PDF （1475KB）（178）       Save
    In order to study the effects of different amounts of selenium on selenium content and quality of Kyoho grape,selenium fertilizer was applied with trunk injection.The results showed that the selenium content of fresh fruits,leaves and main stems was significantly increased by injecting different concentrations of selenium fertilizer into the trunk,reaching 0.035,1.466 and 1.476 mg/kg,respectively.The single fruit weight and the content of soluble solid,soluble sugar,titratable acid,VC,citric acid and malonic acid increased,and the content of titratable acid,oxalic acid and succinic acid decreased by applying selenium fertilizer with trunk injection.The most significant correlation with the amount of selenium fertilizer was oxalic acid(-0.861) and malonic acid(0.832).It illustrated that the selenium content and the quality of grape fruits were significantly improved,and the content of organic acids in the fruits were affected,especially the content of oxalic acid and malonic acid by trunk injection of selenium fertilizer.According to comprehensive analysis,the trunk injection of 50 mg/L was the best treatment.
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    Provenance selection and biological characteristics of fruit type Akebia trifoliata (Thunb.) Koidz.
    FANG Yi, BI Yong, LI Xiao-chun, HU Yan-bo, LIU Xiang-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 68-71.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.014
    Abstract （456）      PDF （1643KB）（272）       Save
    The research results of Akebia trifoliata (Thunb.) Koidz.were summarized from resource selection and biological characteristics.In terms of provenance selection,on the basis of selecting high-quality provenances of A.trifoliate and A.trifoliata subsp.Australis,selecting superior plants from high yield,quality and stress resistance,improving edible rate and realizing seedless are the key points of breeding.In terms of biological characteristics,four aspects were summarized,including phenology,stem and vine growth,flower bud differentiation,flowering and fruit development.
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    Study on main meteorological and biochemical factors of quality formation of gold spring tea at different altitudes in Baojing
    XIAO Jian, LIU Hui, ZHENG Fu-wei, LIU Song, QING Xiang-tao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 72-76.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.015
    Abstract （515）      PDF （2697KB）（237）       Save
    Using the meteorological data of Baojing Golden village's different altitude meteorological stations from 2016 to 2018,the meteorological conditions and tea quality characteristics of Baojing gold tea growth stages were studied.The results showed that,with increasing altitude,the temperature decreased by 0.3 ℃/100 m,the annual precipitation increased by 106.2 mm/100 m,and the annual sunshine hours were 47 hours/100 m in tea garden valley area.The effective accumulated temperature greater than or equal to 5 ℃ played the role in indication for spring tea harvest time.Baojing gold tea located at an altitude of 360m had the best quality and was superior to other well-known teas.The tea polyphenols was positively correlated with altitude,the effective accumulated temperature greater than or equal to 5 ℃ and the sunshine hours (their correlation coefficients are all 0.98).The ratio of phenol to ammonia was positively correlated with the total precipitation in the first half of the year (the correlation coefficient is 0.94).Caffeine was negatively correlated with altitude,the effective accumulated temperature greater than or equal to 5 ℃ and the sunshine hours (their correlation coefficients are -0.96,-0.96,-0.95,respectively).
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    Effect of threshing and redrying intensity on aroma components of tobacco leaves
    LI Tian-cheng, WANG Jian-min, OU Ming-yi, XU Hong-qing, WU You-xiang, LI Rui-li, ZHANG Wang-xing, YANG Yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 77-79.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.016
    Abstract （530）      PDF （1666KB）（209）       Save
    In order to study the changes of aroma components under different conditions of threshing and redrying,the differences of aroma components of C3F grade Cuibi No.1 tobacco leaves before and after redrying were analyzed by simultaneous distillation and extraction combining with GC/MS.Results showed that,leaf threshing and redrying had significant effect on the content of aroma substance;After redrying,the content of aroma substance increased,and the increase was the largest at high leaf threshing strength and low redrying strength;The increase of fatty acids,phenols,alcohols,nitrogen-containing heterocycles and esters was higher than that of the total amount of fragrance substances,while the increase of furans,aldehydes and ketones was lower than that of the total amount of fragrance substances.High intensity threshing and low intensity redrying are beneficial to the transformation and retention of aroma components and improve the sensory quality of tobacco.
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    Screening, identification and the growth-promoting ability for mulberry growth-promoting bacteria
    YANG Tong-yi, DU Qiu-xia, LIU Jing-fei, ZHAI De-li, LIU Yan-peng, ZHAO Wei-guo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 80-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.017
    Abstract （474）      PDF （2657KB）（332）       Save
    In this study,a strain G2 with the ability to promote growth was isolated from mulberry rhizosphere soil.After morphological observation,physiological and biochemical characteristics and 16S rDNA sequencing comparison,the strain was identified as Pseudomonas schneideri.The effects of different pH value and culture time on the growth promoting ability of G2 strain were also studied.The results showed that the highest phosphorus dissolving ability of G2 was 17.96 mg/L at pH 7,and the secretion rate of IAA was faster before 48 h.Pot experiments showed that after inoculation with G2 solution diluted 100 times,the height,fresh weight,shoot dry weight and root dry weight of mulberry seedlings increased by 31.8%,38.5%,34.6% and 31.2%,respectively,compared with the control.The comprehensive analysis showed that G2 strain had strong growth promoting ability,which provided theoretical support for the development of mulberry microbial fertilizer.
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    Particle definition and measurement of cultural landscape
    ZHAO Zhong-jian, LIANG Jun-lan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 85-91.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.018
    Abstract （417）      PDF （5448KB）（152）       Save
    During the actural practice of cultural landscape design,the cultural landscape focuses on the systematic design and exploitation of landscape space after cultural materialization.The basic problems of cultural sharing and inheritance,fault and space,symbol and innovation constitute the basic logic of cultural landscape,which determines the success or failure of cultural landscape construction to a large extent.Cultural landscape always embodies the “clustering”characteristics of different cultural landscape elements or symbols,and the centrality and dispersion distribution characteristics among different elements or symbols,which constitute the unit attributes of cultural landscape.Based on this logic,the idea of cultural landscape particle is put forward:a specific cultural landscape unit with good influence,stable symbol space,reproducible and imitative,stable and open.On this basis,based on the weight analysis of cultural landscape elements,this paper proposes and analyzes the judgment model of rural cultural landscape particles,the calculation model of cultural landscape particle density,and the calculation model of cultural landscape particles,providing a new way of thinking for the quantitative analysis of cultural landscape particles.
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    Study on solid-state fermentation of kitchen waste to produce feedstuff
    HAN Duan-dan, HONG Qi, JIANG Yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 92-95.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.019
    Abstract （447）      PDF （1510KB）（207）       Save
    Kitchen waste is perishable and plenty of organic compounds,and it can be transformed into feedstuff by solid-state fermentation,which provides a useful way for the reutilization of food waste.In this study,the target strain was screened from two yeast species and two trichoderma strains for the fermentation efficiency to product protein feedstuff.By production detection of crude protein and consumption detections of total sugar and reducing sugar,Aspergillus niger F3 was screened as the candidate.The results showed that the optimum fermentation process was fermentation temperature 30 ℃,initial pH 5.3,NaCl 2.5%.Under this condition,the crude protein content in fermentation product reached 31.53% and increased 22% compared with kitchen waste,which is in line with the requirements of the standard protein feedstuff.
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    Effect of Dachengqi decoction of raw rhubarb and steamed rhubarb on changes of serum endotoxin, NO and TNF-α content
    YANG Gui-lin, LIU Cheng-tong, ZENG Hai-sheng, HE Si-lu, ZHOU Qi-ji, MO Xin-ying, CHEN Dong-lian, LU Yu-dan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 96-99.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.020
    Abstract （390）      PDF （1506KB）（138）       Save
    Aiming to study the effect of Dachengqi decoction of raw rhubarb and steamed rhubarb on serum endotoxin,NO and TNF-α levels,105 experimental animals were randomly divided into Dachengqi decoction group,positive control group,blank control group and model group with raw rhubarb and steamed rhubarb.After 20 mL/kg dose administration,the contents of serum endotoxin,nitric oxide and tumor necrosis factor were measured,and the effects of Dachengqi decoction of raw rhubarb and steamed rhubarb on serum endotoxin,nitric oxide and tumor necrosis factor in mice were compared.Result showed that,Dachengqi decoction group of raw rhubarb and steamed rhubarb can increase the serum NO content of ABP mice.The Dachengqi decoction group of raw rhubarb and steamed rhubarb can reduce the serum endotoxin and TNF-ɑcontent of ABP mice.Dachengqi decoction with raw rhubarb and steamed rhubarb has different effects on the content of endotoxin,NO and TNF-α.These changes correspond to the effect of Dachengqi decoction of raw rhubarb and steamed rhubarb,and the he change of the content of the ingredients has a certain influence and commonality on the efficacy of Dachengqi decoction to a certain extent.
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    Preparation of camellia seed oil face cream and evaluation of its acne removing effect
    CHENG Jin-sheng, ZENG Xue-qi, CHEN Yan-fei, WAN Wei-hong, KE Jin-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 100-103.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.021
    Abstract （608）      PDF （1796KB）（293）       Save
    Camellia seed oil was refined from tea seed oil,and then deionized water,glycerol and triethanolamine were used as water phase matrix.The refined camellia seed oil,glycerin,cetyl alcohol,lecithin and propolis were used as oil phase matrix to optimize the formulation of the cream,and the anti inflammatory test and skin control test of the prepared cream were carried out.It was found that when the ratio of deionized water to glycerin to cetyl alcohol to refined camellia seed oil was 25∶5∶5∶3,the cream was prepared by not only has good appearance and stability,but also anti-inflammatory experiments showed that the bacteriostatic circle of cream was obvious.Skin preparation of controlled trials showed that the cream of the mild acne removing effective rate was 77.78%.The results show that the facial cream with camellia seed oil as the main raw material has good stability and can remove moderate and mild acne.
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    Optimization of extraction process of bile acid from bile paste by orthogonal design
    JI Min, LIN Bai-liang, DENG Sheng-ju, PENG Jian-bo, DU Wei, YU Mei-ling, WANG Dong-ying, HE Jia-kang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 104-107.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.022
    Abstract （591）      PDF （2040KB）（225）       Save
    In order to optimize the extraction process of the bile acid in bile paste,the experiment used the L9(34) orthogonal test design,and the total bile acid content was used as an indicator,the amount of 1∶1 hydrochloric acid,the amount of NaOH and the purification time of acid-base purification process were selected to determine the optimal process conditions,and compared with the traditional ethanol purification process.The results showed that the best extraction process of bile acid in bile paste was 1∶1 hydrochloric acid dosage 4 mL,NaOH dosage 0.2 g,and purification time 12 h.The preferred extraction process has the advantages of low production cost,short purification time,small required space,low equipment requirements,simple operation,no pollution to the environment,no use of flammable and explosive organic solvents,good safety,and more in line with the actual needs of industrial production.
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    Optimization of the prescription of compound Bamboo shavings plant solid beverage by central composite design-response surface test
    LIU Ya-ting, LI Hui-yun, LI Ming-hui, FENG Lu-xing, TANG Yu-fei, CHEN Wei-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 108-113.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.023
    Abstract （388）      PDF （2877KB）（211）       Save
    To optimize the prescription of compound Bamboo shavings plant solid beverage made from bamboo shavings,orange peel,Poria cocos,white root and dried ginger.Taking particle molding rate,moisture content and angle of repose as evaluation indexes,the ratio of diluent (mannitol∶dextrin) and dosage of diluent (dry paste powder∶diluent) are investigated by single factor test and star-point design-effect surface test to determine the best process prescription for solid drinks,and use the wet granulation method to prepare Bamboo shavings plant solid beverage.The results showed that the optimum molding parameters of Bamboo shavings plant solid beverage were the proportion of diluent 2.3∶1 and the amount of diluent 1.5∶1.Under the conditions of this process,the particle molding rate reached 94.30%,the moisture content was 1.44%,and the fluidity was good.This study can provide theoretical basis for the industrial production of compound Bamboo shavings plant solid beverage.
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    Development of quercetin composite prebiotic solid beverage and its effect on intestinal flora of mice
    ZENG Yu-peng, LI Guo-kun, LU Xiao-dan, DING Jing-hua, SU Li-jie, CHEN Xiao-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 114-118.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.024
    Abstract （468）      PDF （3341KB）（263）       Save
    Using quercetin and fructo oligosaccharide as the main materials,the optimal formula of quercetin composite prebiotic solid beverage was determined by the single-factor test and orthogonal test.Effects of quercetin composite prebiotic solid beverage on the proliferation of Enterococcus,Enterobacter,Bifidobacterium and Lactobacillus were dynamically inspected.The experiment proved that the best formula of quercetin composite prebiotic solid beverage is 8 g fructo oligosaccharide,0.4 g quercetin,0.06 g citric acid and 0.15 g carboxymethyl cellulose.The beverage has good sensory qualities such as quercetin fragrance,moderate sourness and sweetness,and uniform color.In vitro flora proliferation tests show that fructo oligosaccharides,quercetin,and the quercetin composite prebiotic solid beverage can inhibit the proliferation of Enterococcus and Enterobacter,and can effectively promote the proliferation of Bifidobacterium and Lactobacillus.
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    Study on extraction and chemical constituents of volatile oil from the leaves of Pterocarya stenoptera C. DC
    BO Xin-dang, YU Ke-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 119-123.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.025
    Abstract （442）      PDF （1528KB）（221）       Save
    To investigate the extraction process and chemical compositions of the volatile oil from the leaves of Pterocarya stenoptera C.DC,ultrasonic assisted steam distillation was used to extract the volatile oil.The effects of ultrasonic time,distillation temperature and distillation time on the extraction rate of volatile oil were studied by single factor and orthogonal experiments.The constituents of the volatile oil were analyzed and identified by gas chromatography-mass spectrometry.The results showed that the optimal extraction conditions of the volatile oil from the leaves of Pterocarya stenoptera C.DC in Henan province were as follows:ultrasonic time 30 minutes (ultrasonic power 100 W),distillation temperature 125 ℃,distillation time 7 h.The extraction rate of the volatile oil was 0.040 62%.56 chemical constituents were identified by gas chromatography-mass spectrometry,They mainly contain caryophyllene oxide (40.56%),(1S-cis)-1,2,3,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-naphthalene (18.29%),caryophyllene (10.22%) and so on.This study provides a experimental basis for the utilization and further research of native plant resources.
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    A method for extraction of volatile components in Perilla frutescens by soxhlet extraction device with solid phase extraction
    XU Yong, HUANG Hai-tao, LI Jing, LIU Xin, WANG Jin, YANG Ye-kun, KONG Wei-song
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 124-130.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.026
    Abstract （431）      PDF （1697KB）（223）       Save
    A soxhlet extraction device with solid-phase extraction was designed in this paper.The device was used to extract and analyze the volatile components in Perilla frutescens.The results showed that 75 volatile components were identified,which accounted for 95.64% of the total volatile components by quantiatived with peak area normalization.The main components were perilla ketone(56.16%)、caryophyllene(8.38%)、isodehydrogenisolone(8.11%)、caryophyllene oxide(4.03%),etc.There are 45 kinds of flavor components,which accounted for 88.66% of the total volatile components.The extraction,purification,and concentration were integrated and heating and extraction were performed in a closed environment in this device.which greatly simplified the sample preprocessing operation and effectively shortened the sample preprocessing cycle.It provides a rapid and reliable method for the analysis of volatile and semi volatile components of Perilla frutescens.
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    Analysis of pesticide residues in vegetables of Chengdu city production base
    YIN Quan, LI Yi, LIU Wei, CHEN Min, CHEN Long-fei, YANG Xiao-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 131-134.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.027
    Abstract （425）      PDF （1487KB）（235）       Save
    531 vegetable samples were collected from the vegetable bases of 20 districts and counties in Chengdu city from 2017 to 2019.66 kinds of pesticides were detected by GB 23200.19—2016,GB/T 5009.144—2003,SN/T 3643—2013 and NY/T 761—2008.The results were determined according to GB 2763—2016.The results showed that in all the samples,32 pesticide residues were detected in 92 vegetable samples,and the detection rate of pesticide was 17.33%.One sample exceeds the standard,nine samples detected banned pesticides chlorpyrifos and fipronil,the unqualified rate was 1.88%.Leaf vegetables accounted for 39.13% of the detected samples,and seven samples were unqualified,accounting for 70.00% of the total unqualified rate.Pesticide residues in vegetables are widely used,especially in leaf vegetables.It is necessary to strengthen pesticide quality management,strengthen standardized production management,improve pesticide residue limit standards,increase the investigation and disposal of banned pesticides,increase the frequency of detection in bases and markets,and reduce the impact of pesticide residues on human beings and the environment.
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    Designing and implementation of monitoring and analysis platform of rainstorm mesoscale system
    YIN Xin-huai, CHEN Hong-zhuan, OU Xiao-feng, GAO Song, ZHONG Yan-wen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 135-140.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.028
    Abstract （406）      PDF （11913KB）（70）       Save
    This paper introduced the compositions,main functional characteristics and applications of the monitoring and analysis platform of rainstorm mesoscale system.This platform integrates multiple commonly used data in business into one platform,by comprehensive utilizing computer technology,GIS,database as well as the meteorological professional analysis,the platform achieves the goal of monitoring and analysis the occurrence and development rainstorm mesoscale system quickly and efficaciously.Based on multiple data,the platform can monitor the mesoscale rain clusters and mesoscale systems of rainstorm,through the mesoscale filtering,automatic and interactive recognition of rainstorm mesoscale system,the platform can analyse its structural characteristics and its occurrence and development,based on multiple models and regional automatic meteorological station precipitation data,the platform also can correct the 6 h quantitative precipitation forecasting.
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    Three-dimensional numerical simulation of lightning strike buildings group
    CHEN Rui-ling, SHI Zheng, LI Jie, QU Kai-yue, XU Jia-lun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 141-146.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.029
    Abstract （364）      PDF （4326KB）（213）       Save
    Using three-dimensional pilot parametric discharge scheme to keep the basic parameters of the scheme unchanged.By changing the random parameters of lightning,the development patterns of different lightning under the same building (group) conditions are simulated.Then change the size and spacing of two buildings to obtain the data of different lightning under different building (group) conditions.Study the influence of building characteristic parameters on lightning activity with these data.The results showed that high buildings had obvious protective effect on low buildings,and there was a negative correlation linear relationship between the protection probability and the distance between buildings.There exist a critical protection distance:When high buildings are 300 m high,low buildings are 100 m high,high and low buildings are 50 m long and wide,the critical protection distance is about 100 m;The corner of high buildings can cause stronger electric field distortion,so as to lower buildings.The height of high buildings is positively correlated with the probability of protection,and the distance between buildings is negatively correlated with the distance of protection.In addition,this paper also gived a calculation formula of lightning protection probability for different buildings.
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    Design and implementation of the intelligent and accurate agrometeorological service platform in Shandong province
    LI Yu-hua, CHU Xi, ZHANG Hong, CHE Jun-hui, LI Wen-ke
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 147-150.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.030
    Abstract （457）      PDF （6309KB）（396）       Save
    In order to meet the needs of modern agricultural meteorological services and establish the accurate service for agrometeorological by user demand-oriented,the intelligent and accurate agrometeorological service platform in Shandong province was developed based on Html5 technology.According to the detailed meteorological needs of users,the accurate information of meteorological indicators was added,the crop meteorological index database and the users meteorological index database were constructed,and the prediction model for the suitability of crops in the whole growth period was established.The platform combined with meteorological real-time data,meteorological early warning and forecast,agricultural forecast and other information,based on the user's location and demand,the production and display of agricultural meteorological service products were realized.Based on LBS and combined the refined forecast technology with WEB GIS technology,the platform has established a “one-to-one”agricultural meteorological service for users.The platform has been widely used in Shandong province.
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    Genetic transformation method of hairy roots mediated by Agrobacterium rhizogenes for Pyrus betulaefolia
    HAO Zi-wei, DAI Yu-qin, ZHANG Shao-ling, WANG Peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 151-154.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.031
    Abstract （533）      PDF （2970KB）（441）       Save
    Pyrus betulaefolia was used as the research material to establish a simple,rapid and efficient method for genetic transformation of pear hairy roots by Agrobacterium rhizogenes.The expression vector pROK2 containing mCherry gene was introduced into Agrobacterium rhizogenes K599 to infect the seedlings of Pyrus betulaefolia.The function of the expression vector was detected by the three methods,namely,injection of tobacco leaves,routine PCR and stereoscopic fluorescence microscope observation.By transient expression in infected tobacco leaves,it was proved that mCherry could be expressed in plant cells.After infected by Agrobacterium rhizogenes infected 34 Pyrus betulaefolia seedlings regenerated hairy roots and the regeneration rate was 85%.Through the identification by PCR,there were 6 of the 34 transgenic plants with positive transgenic hairy roots,with a positive rate of 17.6%.The red fluorescence of mCherry can be observed directly in the transgenic root by stereoscopic fluorescence microscope.In this study,by using the method of Agrobacterium rhizogenes directly infecting Pyrus betulaefolia,the expression of foreign gene in the new adventitious root of pear was successfully realized.This method overcomes the difficulties such as complex genetic background,long childhood,simple operation,high transformation rate and short cycle.It can transform roots stably in a relatively short time,which provides a new tool for pear gene function research and genetic improvement.This work provides a foundation for improving the success rate of genetic transformation of pear trees.
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    Study on tissue culture and rapid propagation of Ficushirta vahl
    CHEN Ying-zhi, HUO Xiu-yi, OUYANG Pu-yue, GAN Feng-qiong, LI Liang-bo, HUANG Rong-shao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 155-159.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.032
    Abstract （436）      PDF （5469KB）（171）       Save
    To establish the system of tissue culture and rapid propagation of Ficushirta vahl.The seeds of Ficushirta vahl were used as experimental materials.The media of seed germination,adventitious bud proliferation and rooting were screened by conventional tissue culture technique.The result shows that 1/2 MS+sucrose 20 g/L+agar 6.0 g/L medium without any hormone was suitable for seed germination.The optimum medium of stem proliferation is MS+sucrose 20 g/L+agar 6.0 g/L.Tissue cultured plantlets root easily and the medium composition of 1/2 MS medium without any hormone sucrose 20 g/L+agar 6.0 g/L was good for rooting,The ratio of rooting of Ficushirta vahlcan reach 100%.The results can provide the theoretical and technical support for mass seedling production,germplasm resources preservation and breeding of Ficushirta vahl.
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    Research on the differences of cost, benefit and risk under different operation modes of rural land
    GENG Jun, WANG Zhen-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 160-164.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.033
    Abstract （406）      PDF （1473KB）（220）       Save
    The rural land management in China can be divided into enterprise management,farmers' professional cooperatives,family farms and farmers' self-cultivation mode.There are obvious differences in production costs,performance and management risks under different land management modes.Through the field investigation in Longfeng town,Enshi city,it is found that in the aspects of performance,production costs and management risks,enterprise management,farmers' professional cooperatives,family farms and self-cultivation are all in turn from high to low.The input cost is positively correlated with income,and the management risk is positively correlated with investment.Therefore,it is suggested that emphasis should be placed on supporting two business models such as farmers' professional cooperatives and family farms.On the premise of retaining the necessary land for self-cultivation,we should guide and encourage the circulation of land,promote large-scale management,and improve the efficiency of land use.
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    SWOT analysis and countermeasures for the improvement of quality and efficiency of Ankang selenium-enriched tea industry
    CHEN Xu-ao, XUE Huan-xia, YAO Xiao-wei, ZHANG Lan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 165-168.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.034
    Abstract （628）      PDF （1635KB）（379）       Save
    Using the SWOT analysis of enterprise strategic management research,this study analyzed the advantages,disadvantages,opportunities and threats of the development of Ankang selenium-enriched tea industry.It is proposed that to improve the quality and efficiency of the industry,it is necessary to strengthen the leading enterprises,promote the large-scale and standardized operation of tea enterprises,strengthen the cooperation of production,teaching and research,cultivate professional and professional tea industry talents,establish Ankang selenium-enriched tea and speed up tea brand integration to promote the the integration of three industries,extend the tea industry chain,dock “the Belt and Road”initiative and develop the tea market.
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    Research on the coupling and coordination development of tourism and new urbanization in Yichang city
    XIE Hui, ZENG Wei, JIANG Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 169-173.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.035
    Abstract （433）      PDF （1509KB）（179）       Save
    Through the construction of tourism and new urbanization evaluation index system in Yichang city,based on the data from 2008 to 2017,using entropy method,coupling coordination degree and other quantitative analysis methods,this study explored the comprehensive development level and coupling coordination status of tourism and new urbanization in Yichang city.The results show that the comprehensive development level of tourism in Yichang city shows a trend of first declining and then rising,the comprehensive development level of new urbanization has been on the rise,and the coupling coordination status has developed from moderate imbalance to primary coupling coordination from 2008 to 2017;The comprehensive development level of tourism has been lagging behind the comprehensive development level of new urbanization from 2010 to 2017.
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    Research on the evaluation of popular science tourism based on the improvement of public scientific quality
    SHEN Hong-jie, ZHAO Lin-long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 174-177.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.036
    Abstract （459）      PDF （1541KB）（138）       Save
    Popular science tourism is to achieve the purpose of public understanding of science in the form of tourism.Tourism is used as a carrier of communication to promote scientific spirit and popularize scientific knowledge.Based on the needs of tourists,this study selected 20 representative measurement indicators,used factor analysis to extract four factors of popular science tourism evaluation construction,which were science popularization facilities,activities,platforms and personnel.Finally,aiming at the promotion of public scientific quality,some suggestions are put forward from four aspects:Popular science facilities,popular science activities,popular science personnel and popular science platform.
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    Users satisfaction evaluation of urban slow moving system：Taking Nanming river slow moving system in Guiyang city as an example
    HONG Hai-lin, WU Zhi-gang, GUO Wen-xia, QIU Hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 178-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.037
    Abstract （330）      PDF （1687KB）（222）       Save
    Slow moving system is a kind of linear space type with special composite function in urban public space.From the perspective of user experience,the evaluation of slow moving system can supplement the theoretical research of slow moving system and provide basis for project practice.Taking Nanming river slow moving system of Guiyang city as the research object,this study investigated and obtained data from users,built a user satisfaction evaluation model with AHP,and used fuzzy comprehensive evaluation method to evaluate.The results showed that the satisfaction of users to the slow moving system of Nanming river in Guiyang city reached the basic satisfaction level;The satisfaction of three project levels was that the environmental traffic was higher than the supporting facilities and higher than the recreational experience;In the index layer,18 evaluation indicators were divided into key improvement indicators,key maintenance indicators,maintenance improvement indicators and follow-up improvement indicators by using importance satisfaction analysis method,and put forward targeted improvement strategies and suggestions.
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    Study on enclave construction based on regional cooperation in Yangtze River Delta
    CUI Guo-xuan, QIN Xian-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 184-186.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.038
    Abstract （339）      PDF （1439KB）（209）       Save
    In recent years,enclave economy as an important mode of regional cooperation has been greatly developed in China,which plays an important role in realizing the complementary advantages of cross administrative regions and promoting the balanced development between regions.Through the extension of enclave economic connotation,this study analyzed the possibility of economic development and regional cooperation mode of enclave to promote regional economic development,and analyzed the existing enclaves in the Yangtze River Delta,and found that the enclave economic development model could greatly enrich the connotation of high-quality regional integration development in the Yangtze River Delta.Because the construction of the enclave is not mature,we must improve the system construction,clarify the organization and leadership,and establish the benefit sharing mechanism to promote its construction.
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    The relationship between online reviews and purchase intention：Analysis of a moderated mediation model
    CHEN You-qing, LI Xiu-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 187-191.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.039
    Abstract （463）      PDF （1537KB）（373）       Save
    In order to clarify the influence mechanism of online reviews on purchase intention,a moderated mediating model was constructed,focusing on the mediating role of perceived risk in the relationship between the two and the moderating role of brand trust.782 subjects were investigated by questionnaire on online comments,purchase intention,perceived risk and brand trust.The results showed that,after controlling gender,occupation and online shopping age,online reviews quality had a positive direct effect on purchase intention.The positive association between online reviews quality and purchase intention was mediated by perceived risk.The direct predictive effect of online review quality and the mediating role of perceived risk in the relationship between the two were moderated by brand trust.
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    Empirical analysis of agricultural eco-environmental impacts of agricultural subsidy policy
    ZHAO Xiao-hong, YANG Jun-xiao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 192-196.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.040
    Abstract （441）      PDF （1489KB）（174）       Save
    Agricultural subsidies will have an impact on the agro-ecological environment by changing farmers' production decision-making behavior while promoting increased production and income.Based on the survey data of 375 households in Qitai county,this study used multiple regression analysis to analyze the factors affecting the fertilizer application of farmers,and measured the environmental impact of subsidy policy by using the changes in fertilizer use.The results show that agricultural subsidies have a very significant positive impact on the amount of fertilizer input,and the more the subsidy amount,the more fertilizer input.Farmers are more willing to use the subsidy income to increase the input of agricultural products such as fertilizers and pesticides.The subsidies will increase the amount of fertilizer applied by farmers,thus affecting the ecological environment.
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    Community governance transformation under the background of village to residence reform：A case study of Furun community
    WU Qian-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (1): 197-201.   DOI: 10.14088/j.cnki.issn0439-8114.2021.01.041
    Abstract （558）      PDF （1472KB）（613）       Save
    Under the background of urbanization,in order to improve the efficiency of land use,many rural areas have been removed from villages to live together,and the number of village to community has also been increasing.Village to community is a transitional community between rural community and urban community,which is often accompanied by some difficult governance problems.On the one hand,it is difficult for most residents to adapt to the living environment in the community in a short time,resulting in the phenomenon of spatial urbanization and human urbanization being divorced from each other.On the other hand,residents in village to community have strong heterogeneity,lower trust of residents and insufficient community cohesion.The key to solve the problem of community governance is to change the governance mode of traditional villages,reconstruct the habits of residents by establishing community conventions,create a new type of public space,promote communication among residents,mobilize multiple subjects and realize community co-governance.
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    Research status of common Chinese herbal medicine Cynodon dactylon （L.）Pers.
    LI Wen-li, CHEN Yong, WEI Jiang-cun, LIU Qian-qian, LIANG Xiao-lian, LIU Wen-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 5-8.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.001
    Abstract （526）      PDF （1580KB）（451）       Save
    Cynodon dactylon （L.）Pers. has the functions of clearing heat and diuresis, dispersing blood stasis and hemostasis, relaxing channels and activating collaterals, and is widely distributed, and has broad prospects for development and utilization. This paper summarized the research status of the confusing products, chemical composition, pharmacologicaleffects and application, in order to provide the basis for the further development and utilization of this herb.
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    Research progress on herbalism,chemical constituents and pharmacological effects of different medicinal parts of Poria cocos
    ZHANG Chao-wei, ZHANG Yu, SU Shan, CHEN Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 9-14.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.002
    Abstract （698）      PDF （1610KB）（416）       Save
    Through sorting out the herbalism ancient books and records and modern documents, the studies on herbalism, chemical components and pharmacological effects of different medicinal parts of Poria cocos were summarized, providing references for the in-depth study on the efficacy characteristics and mechanism of different medicinal parts of Poria cocos.
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    Analysis on the progress of agricultural big data application research
    HAN Sha, MA De-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 15-19.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.003
    Abstract （566）      PDF （1582KB）（205）       Save
    With the rapid development of network information technology, “Internet +” has become an important assistant leading the industrial upgrading, and the traditional extensive agricultural production model is gradually shifting towards intensive, precise, intelligent and data-oriented. The application of big data in the agricultural field is of great practical significance to the integration of agricultural informationization and agricultural modernization in China. The article uses literature review method, summarizes the research progress of agricultural big data at home and abroad, analyzes the application direction of agricultural big data, and points out the problems and challenges of current development.
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    Effects of sowing dates on the growth process, yield and rice quality of Zhenzhunuo
    DUAN Bin, HU Yang, HE Shi-jie, WANG Qing-lin, LI Hui-long, SONG Xiao-hua, CHEN Long, FANG Ling
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 20-24.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.004
    Abstract （447）      PDF （1582KB）（159）       Save
    In order to study the effect of sowing time on the growth process, yield and rice quality of Zhenzhunuo, through the experiment of sowing by stages （April 20, April 27, May 4, May 11, May 18, May 25, June 1） from 2018 to 2019, to determine the best sowing time of the variety, and promote the development of glutinous rice industry in Xinyang area. The results showed that with the delay of sowing time, the stages from seeding to heading shortened, the filling and ripening stage prolonged, the number of leaves decreased and the plant became shorter. Yield first increased and then decreased with the delay of sowing time. At the sowing dates of April 27, May 4 and May 11, the number of effective panicles, spikelets per panicle, setting percentage and 1 000 grain weight were all kept at relatively high levels, with the highest yield on May 4. Brown rice percentage and milled rice percentage showed a trend of decreasing first, then increasing and then decreasing, head rice percentage showed a trend of decreasing first and then increasing. Except for sown on April 27 and May 4, the gel consistency decreased slightly, the other sowing dates were all 100.0 mm, the alkali spreading value increased with the delay of sowing date; amylose content did not change before May 4, and then decreased with the delay of sowing. The amylose content in rice quality was most affected by temperature, and was extremely significant correlated with the daily average temperature during the filling period. In Xinyang area, it is beneficial to increase the yield and improve the quality to arrange the sowing date in a suitable range.
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    Comparative study on the production of differentrice varieties introduced from China in the republic of Burundi
    LIU Kai-qiang, CHEN Lei, HUANG Yu-yi, GAO Li-jun, GAO Guo-qing, PAN Ying-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 25-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.005
    Abstract （546）      PDF （1875KB）（169）       Save
    To provide theoretical basis and technical guidance for the popularization and application of rice varietiesintroduced from China, the yield and its components of rice cultivars were evaluated through multi-variety, multi-year and multi-point screening and identification tests in Burundi. The results showed that the yield of Chinese rice varieties was higher than that of local rice varieties, revealing that they had good ecological adaptability, and hybrid rice varieties had a significant effect on yield increase compared with conventional rice varieties. Hybrid rice varieties were suitable for planting in low-altitude areas, while conventional rice varieties were suitable for medium-high altitude areas. The transplanting rice had a higher yield than the rice using the drilling and broadcasting sowing technique. Meanwhile, water-saving cultivation had a higher yield than local cultivation in Burundi. Two rice varieties （hybrid rice Teyou 649 and conventional rice Guifeng No.2） suitable for the large-scale popularization and application in Burundi were screened out, and the overall rice yield level in Burundi could be further improved by combining with the advanced and appropriate cultivation methods.
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    Study on the seedling growth of maize plants under the model of “Raising geese in cornfields”
    ZHOU Jin-mei, BIAN Bu-yun, LI Ping, ZHU Yan-li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 31-34.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.006
    Abstract （652）      PDF （1586KB）（214）       Save
    In order to clarify the effects of different production modes on the growth of maize at seedling stage, the weed community status and maize status at seedling stage were investigated and analyzed by using the method of contrast with the production mode of breeding goose （RGC） in corn field. The results showed that the above ground biomass of weed communities was slightly lower than that of CK, and there was no significant difference between treatments. The leaf length, leaf width, leaf area, stem diameter, fresh weight and dry weight of maize of RGC treatment were higher than that of control （CK）, and there was no significant difference between the treatments, but plant height of the RGC treatment was significantly higher than the CK, and the chlorophyll content of the RGC was significantly lower than that of the CK, however, the maize yield of RGC was significantly lower than that of CK. After 4 years of long-term positioning tests, the treatment of RGC increased the species and biomass of the weed community, and improved the growth of the maize at the seedling stage in general, the final reduction of corn yield in autumn was due to later management factors.
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    Analysis on spatio-temporal difference of tourism carbon emissions in northwest China
    SUN Hai-xia, SU Ning-na
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 35-43.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.007
    Abstract （572）      PDF （3332KB）（169）       Save
    Based on the three main aspects of tourism industry, tourism transportation, tourism accommodation and activities of the scenic spot, the bottom-up analysis method was used to calculate the tourism carbon emissions in the northwest region from 2000 to 2017 and the provinces in 2000, 2008, and 2017. Per capita carbon emissions and carbon emission intensity of tourism industry were calculated, and their temporal and spatial differences were analyzed. The results showed that from 2000 to 2017, total carbon emissions of tourism industry showed a fluctuating growth trend, while per capita carbon emissions and carbon emission intensity of the tourism industry showed a fluctuating downward trend, indicating that the development of low-carbon tourism in this region was gradually emerging; From 2000 to 2017, there was a significant gap in the carbon emissions and growth rates of the three aspects of tourism industry in the northwest region. The carbon emissions of tourism transportation had always been in an absolute dominant position, and the carbon emissions of tourism accommodation and tourism activities accounted for a relatively small proportion. While the growth rate of tourism activities was the largest, which was 7.75 times larger than the tourism transportation. The carbon emissions of the three aspects changed from 90.12%, 9.23% and 0.65% in 2000 to 90.05%, 5.97% and 3.98% in 2016; There were significant spatial differences in the carbon emission level of tourism industry in northwest region. The overall carbon emissions of tourism in each province （regions） were gradually evolving to high-emissions areas. Except for Qinghai province, the per capita carbon emissions and carbon emission intensity of tourism in other provinces （regions） showed a trend of transformation from high to low.
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    Characteristics analysis and annual assessment of main agro-meteorological disasters in Qingyang city
    HAN Jing, ZHANG Mou-cao, LU Ya-qi, ZHANG Hong-fen, CAO Yan-chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 44-49.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.008
    Abstract （411）      PDF （3598KB）（301）       Save
    Based on the disaster data of many years in Qingyang city, the temporal and spatial distribution characteristics of agro-meteorological disasters were analyzed, and the disaster rate and its standardized value were used to carry out the classification and annual assessment of agro-meteorological disasters. The results showed that the main agro-meteorological disasters were hail, rainstorm, flood, drought and low-temperature freeze damage in Qingyang city, which were affected by agro-meteorological disasters in different degrees every year; The number of meteorological disasters was less in autumn and winter, and more in spring, summer and early autumn. The meteorological disasters were mainly concentrated in April to September, and more obvious in June to August; The agricultural disasters caused by drought were the most serious, followed by hail disaster, rainstorm flood and low-temperature freeze disaster were the least; The agricultural meteorological disaster in tableland area was relatively less, the degree of disaster was relatively light, and the weather phenomenon in mountains area was complex, and the degree of disaster was serious; The degree of agricultural disaster caused by hail disaster was all below the level of major disaster, and the extreme degree of rainstorm flood, drought and low-temperature freeze disaster was obvious, and the frequency of light disaster year was the most in the annual assessment.
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    Distribution characteristics of summer resort tourism climate resources in mountain of Xianning city
    WEI Hua-bing, LI Lei, LUO Yu, XING Li-tian, WU Dong-qiao, WANG Fen-fen, TANG Zi-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 50-55.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.009
    Abstract （551）      PDF （5233KB）（426）       Save
    Based on the summer meteorological data of regional automatic meteorological stations and Jinsha town, Tongshan county and Tongcheng county national meteorological observation stations in Xianning city, the distribution of monthly average temperature, relative humidity and wind speed with altitude in the mountain area in the south of Xianning city was analyzed. According to the relevant research on the evaluation of mountain type summer resort tourism climate resources, two basic climate evaluation indexes suitable for the summer resort tourism climate resources in mountain of Xianning city were put forward. According to the study of the distribution of meteorological element values with the change of altitude, it was concluded that the summer resort tourism climate resources in Xianning city were mainly distributed in the mountainous areas with the altitude of more than 800 meters in the middle and south, and more than 1 000 meters in the south. The summer resort tourism climate resources were better.
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    Change characteristics of seasonally frozen soil and its response to climatic factor
    JIA Chao, XIANG Dao, GUO Feng-juan, LI Hong-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 56-60.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.010
    Abstract （609）      PDF （1644KB）（543）       Save
    The local climatic data from 1962 to 2018 in the Eighth Agricultural Division of Xinjiang was used to analyze the freezing beginning period, thawing period and persistent period of frozen earth, and the relationship between the maximum depth variation trend of the frozen earth and the climatic factors. The results indicated that seasonally frozen soil of reclamation area in the Eighth Agricultural Division of Xinjiang was stable from November to March of the next year, and the frozen earth was the deepest in the first and middle ten-day of February; The inclination rate at the freezing beginning period was 1.12 d/10 years, with the linear backward about 6 d; The inclination rate at the thawing period was -1.42 d/10 years, with the linear forward about 8 d; The inclination rate at the persistent period was -1.36 cm/10 years, with the linear shortening about 8 d; The inclination rate of the maximum depth of frozen soil was -8.09 cm/10 years, with the linear decreased by 46 cm. The maximum depth change of frozen soil was significantly correlated with air temperature, rainfall, and snow depth at the same period. For every 1 ℃ increase in air temperature from November to March of the next year, the layer of frozen soil became about 4.0 cm shallower; For every 10 mm increase in precipitation, the layer of frozen soil became about 2.5 cm shallower; For every 1 cm increase in snow depth in January, the layer of frozen soil became about 0.7 cm shallower. The layer of seasonally frozen soil became shallow gradually, and the shortening of the frozen soil period had a direct relation with the climate warming.
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    Modelling carbon accumulation process in peatlands for nearly 200 years, Changbai mountain
    LI Jia-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 61-65.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.011
    Abstract （402）      PDF （1929KB）（161）       Save
    Based on the peat profile data of 210Pb fixed years in Changbai mountain area in recent 200 years, the carbon input rate （p） and decomposition rate （k） in the aerobic decomposition process of active layer peat were estimated by using different decomposition models （single exponential decomposition model, double exponential decomposition model and linear decomposition model） fitting.The effect of p and k on carbon accumulation in peatland was studied by sensitivity analysis. The results showed that the Laolike peat profile in the past 200 years; The organic carbon content varied from 34.4% to 44.8%, and the rate of carbon accumulation （Rate of carbon accumulation, RCA） averaged 79.9 g/（m2·year）. The variation range of organic carbon content in the peat profile of Baijianghe was from 24.4% to 42.5%, and the mean RCA was 62.4 g/（m2·year）. The carbon accumulation massage curves of both profiles were concave, indicating that peat continued to decompose in the past 200 years. Among the three models, the single exponential model had the best fitting effect. According to the simulation results, the carbon input rate of Laolike peatland was 109.940 7 g/（m2·year）, and the decay rate was 0.005 5; Comparatively speaking, the input rate of Baijiang peatland was slightly lower, which was 87.478 8 g/（m2·year）, while the decay rate was faster, which was 0.010 3. Sensitivity analysis showed that under the condition of constant input rate, increasing decay rate will cause the curve to move upward （peat accumulation decreases）; At a constant decomposition rate, a reduction in the input rate would cause the curve to move upwards （a reduction in peat accumulation）. Compared with the decomposition rate, the input rate had more influence on the accumulation of peat.
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    Risk assessment of heavy rainfall and waterlogging in Shijiazhuang based on road traffic
    WEI Jun, CHEN Xiao-juan, HU Hui-fang, ZHANG Jing, LI Ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 66-71.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.012
    Abstract （422）      PDF （7755KB）（112）       Save
    Based on the mathematical model of heavy precipitation and waterlogging in Shijiazhuang city, 2, 5, 10, 30, 50, and 100 years for one hour of precipitation are selected to simulate the road waterlogging depth in Shijiazhuang city in 2017. The traffic flow and speed of the vehicle are used to characterize the vulnerability of the waterlogged carrier, and the GIS spatial analysis function is used to complete the risk assessment of road traffic caused by the heavy rainfall waterlogging disaster. The results show that with the increase of the hourly precipitation recurrence period, the area and depth of water accumulation on urban roads increase in varying degrees; Under the rainfall intensity of 2 years, 25.8% of the roads in the urban area have accumulated water, and the average accumulation of water. The water depth is 8.6 cm, and under a rainfall intensity of 100 years, the number of accumulated water grids exceeds 70%, and the accumulated water in the unit grid increases significantly, with an average accumulated water depth of 56.3 cm. The risk assessment of road waterlogging shows that the number of grids in the low-risk area is the highest at 30 years, and the number of grids in the middle-high-risk area increases with the recurrence period.
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    Study on the patio-temporal characteristics and dynamic mechanism of cultivated land use patterns in Guangxi
    LIANG Xiao-li, TU Shuang-shuang, WAN Shi-meng, ZHOU Xing-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 72-78.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.013
    Abstract （450）      PDF （9853KB）（150）       Save
    Based on the current land use of Guangxi in three periods of 1995、2005 and 2015, ArcGIS, Fragstats and SPSS software were combined to quantitatively analyze the patio-temporal characteristics of cultivated land use patterns in Guangxi, reveal the differentiation laws of cultivated land use patterns in different periods and identify the main driving factors. The results showed that： ①During 1995—2015, the total cultivated land area increased in Guangxi , and the time series showed a trend of increasing first and then decreasing. There was a strong spatial coincidence between the high value center of growth rate of cultivated land in 1995—2005 and the reduction rate in 2005—2015. ② From 1995 to 2005, the newly increased cultivated land mainly came from forest land and grassland, while from 2005 to 2015, some of cultivated land was converted into forest land, grassland and construction land. ③The fragmentation degree of cultivated land landscape first increased and then decreased, and the dominance of connectivity, aggregation and dominant patches in the region first weakened and then increased. ④The evolution of cultivated land use patterns was the result of multiple factors such as terrain conditions, economic development and human intervention. In the range of different topographic relief, the change of cultivated land use had different temporal and spatial characteristics. Regional economic development, urbanization level, farmers' income level, location conditions, the proportion of the primary industry, and the number of rural population were the main driving factors for the change of cultivated land use in Guangxi.
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    Investigation of selenium content in soil and garlic in Yesanguan town, Badong county
    WANG Meng, WANG Wen-xi, DAI Guang-zhong, TAN Hong-ping, XIE Yi-mei, CHEN Tian-tian, LI Xian-min, XING Dan-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 79-81.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.014
    Abstract （457）      PDF （3503KB）（211）       Save
    The selenium enrichment of soil and garlic（Allium sativum L.） samples were investigated at 12 sampling sites in Yesanguan town, Badong county. The results showed that the selenium content of soil, garlic clove, garlic bolt and garlic leaf at the 12 sampling sites was 0.083~2.676, 0.054~0.589, 0.038~0.257 and 0.033~0.152 mg/kg, respectively. The selenium content of garlic cloves, bolls and leaves was different in different soil sampling points. The enrichment of selenium in each garlic clove was the strongest, and the enrichment of selenium in each part of garlic was shown as the garlic clove > garlic bolt > garlic leaf.
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    Isolation, identification and control effect of antagonistic bacteria LG-3 of tobacco black shank
    ZHANG Xing-bo, GUO Xiao-hong, LIU Yu-zhen, LI Jian-hua, WANG Jing, SUN Xiao-wei, FA Peng-fei, WEI Yue-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 82-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.015
    Abstract （376）      PDF （3347KB）（248）       Save
    35 antagonistic strains of tobacco black shank disease were screened from the rhizosphere soil of Xuchang healthy tobacco by the plate confrontation method. By means of control effect test, a strain LG-3 with good control effect on black shank disease of tobacco was obtained. After identification, LG-3 was identified as Arthrobacter nicotianae, and by toxicological analysis, it was found to be a non-toxic strain. It was reported for the first time that Arthrobacter nicotianae, as a biocontrol bacterium, had an antagonistic effect on the pathogenic bacteria of tobacco nigtibia, and the control effect of tobacco nigtibia at the seedling stage can reach 85.59%.
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    Immobilization conditions for arbutin synthetase
    LI Hao, SHENG Xi-qun, LIU Jing, ZHONG Xing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 85-89.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.016
    Abstract （399）      PDF （1693KB）（123）       Save
    The constructed plasmid containing aglA gene was transformed into Escherichia coli BL21 Gold （DE3） to induce its successful expression, and the transglucosidase was synthesized to catalyze the production of α-arbutin. Then the transglucosidase was extracted and purified by ultrasonic crushing technique and nickel ion chromatography column and fixed by sodium alginate-gelatin mixture so that it could be reused. The optimum immobilization conditions were as follows： A mixture of colloid dissolved in pH 7 with 3.0% sodium alginate and 3.0% gelatin was prepared. The solution was titrated at a height of about 45 cm and pre-cooled at 4 ℃ by 300 g/L calcium chloride solution and immobilized for 20 min. After washing, calcification was performed at -20 ℃ for 50 min to obtain immobilized beads with a diameter of 3.97 mm and a mass of 0.311 g.
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    Comparison of trapping effects of Empoasca onukii Matsuda and Apolygus lucorum with different treatment
    CHENG Yi-fang, YANG Wei, LUO Jing-dong, YANG Xiao-juan, TANG Qian-yong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 90-92.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.017
    Abstract （650）      PDF （2808KB）（158）       Save
    Using different treatment to trap Empoasca onukii Matsuda and Apolygus lucorum, the results showed that digital sticky trap and yellow sticky trap to control Empoasca onukii Matsuda and green sticky trap to prevent Apolygus lucorum, the summary of injurious insects occurrence in Xiangyang city.
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    Quality and benefit analysis of cherry facilities and open-field cultivation in Luoyang
    YUE Hui-xin, CHEN Di-xin, WU Hao, FU Han-jun, YANG Ying-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 93-95.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.018
    Abstract （480）      PDF （1524KB）（147）       Save
    The phenological period, fruit quality and economic benefit of cherry cultivated in plastic greenhouse and open field in Luoyang were compared and analyzed.The results showed that the dormancy end time of Hongdeng, Zaodaguo, Zaohongbaoshi and Meizao varieties cultivated in plastic greenhouse was January 5, germination and maturity were 65 days and 15~35 days earlier, respectively. The weight of single fruit increased significantly, the unit price was 120 yuan/kg, the yield per plant was 5~10 kg, and the income was 3~5 times of that of open field cultivation.
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    Application of biodegradable plastic film in flue-cured tobacco production of Qujing tobacco-growing areas
    GAO Hua-feng, WANG Quan-hui, YANG Li-ping, QIN Ru-ping, AO Jin-cheng, ZHAO Cui, XIAO Yi-heng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 96-99.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.019
    Abstract （385）      PDF （1562KB）（208）       Save
    Field experiments were conducted to evaluate the application effect of biodegradable plastic film on flue-cured tobacco production of Qujing tobacco-growing areas with PE plastic film. The results showed that, the effect of biodegradable plastic film on soil moisture retention and temperature preservation was slightly worse than that of PE film, which had adverse effects on soil main nutrients and soil pH value. The black biodegradable plastic film broke 15 days earlier than the white one, and the degradation rate reached 63.73% after 150 days,while the degradation rate of the white biodegradable film reached 55.41%. The white biodegradable plastic film was beneficial to improve the coordination of chemical components in upper and middle tobacco leaves. The bio-degradable plastic film has better degradation performance, which is helpful to improve the coordination of chemical components of tobacco leaves, but the effect of heat preservation and moisture preservation is not good. The effect of white biodegradable plastic film is better than that of black biodegradable plastic film.
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    Effects of different concentrations of 6-BA on the secondary culture of variant Yunyan 97
    ZHANG Li-qiong, CHEN Di, YANG Song-jie, NIE Xiang-tao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 100-103.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.020
    Abstract （397）      PDF （2379KB）（122）       Save
    Two giant variants of Yunyan 97 were found in Zhenping county, Ankang city, Shaanxi province,compared with the common tobacco, these giant variants have larger growth advantage. It is a good germplasm resource to be preserved by tissue culture and rapid propagation. The effects of 6-BA concentration on the secondary culture of Yunyan 97 were studied by using tissue culture seedlings induced by axillary buds of Yunyan 97 variant as raw materials. The results showed that the suitable differentiation medium for Yunyan 97 variants was MS+6-BA 2.0 mg/L, and the third generation medium MS+6-BA 1.0 mg/L+NAA 0.2 mg/L, under these conditions, the differentiation rate of variant was 88.9%.
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    Effects of winter cultivation in greenhouse on the anti-freezing effect and fruit quality of citrus
    SHI Jiao-jiao, CHEN Yuan-jun, SHI Hong-bin, YUAN Ming-qing, CHENG Gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 104-108.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.021
    Abstract （361）      PDF （2066KB）（145）       Save
    Using Tarocco blood oranges were used as materials,a plastic greenhouse was set up in Taroko Blood Orange Garden in winter （December-February of the following year） to study the temperature change and its effects on the quality of citrus fruits. The results showed that the daily minimum temperature in the greenhouse was increased by 0.2~3.6 ℃, and the daily maximum temperature in the greenhouse was also significantly increased by 0.5~10.8 ℃. The diurnal temperature difference in the greenhouse was larger than that outside, and the temperature differences during cold wave and fine weather were more obvious. The coloring effect of Taroko blood orange outside was better than that in greenhouse. The greenhouse effectively increased the edible rate, juice yield, soluble solids and sugar content of Taroko blood orange, decreased the total acid content and increased the solid-acid ratio.
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    Mechanism of Panax notoginseng in the treatment of arthritis based on network pharmacology
    HAN Qian, CHEN Yong, WANG Jing-jing, WEI Jiang-cun, HUANG Zhou-yan, CHEN Liang-ni
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 109-115.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.022
    Abstract （398）      PDF （9858KB）（321）       Save
    The main effective components of Panax notoginseng were retrieved by TCMSP database under the condition of OB > 30% and DL > 0.18; The target of active ingredients was extracted by Drugbank and UniProt database, and the related targets of arthritis were screened by GeneCards and OMIM database;making Veen map of related targets of Panax notoginseng in the treatment of arthritis; Then, we use the software of Cytoscape 3.6.0 and the database of String to draw PPI network diagram and the network control diagram of Panax notoginseng, active ingredient, target gene and arthritis respectively; Finally, R language is used as a tool to screen key targets and analyze their biological processes and important signaling pathways, to study the mechanism of Panax notoginseng in the treatment of arthritis by network pharmacology. The results showed that eight main components of Panax notoginseng were retrieved, including β-sitosterol, stigmasterol and ginsenoside rh2; 131 related targets of Panax notoginseng in the treatment of arthritis; The key targets of Panax notoginseng are mainly involved in protein heterodimerization activity, DNA-binding transcription activator activity,RNA polymerase II-specific,cytokine receptor binding and other biological processes; It is necessary to play a role in the treatment of arthritis through AGE-RAGE signaling pathway in diabetic complication,fluid shear stress and atherosclerosis, Hepatitis B and other important signal pathways.
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    Observation on the embryonic development of Schizopygopsis younghusbandi
    YANG Wei, LIAO Hua-jie, HU Cheng-peng, ZHANG Bo, ZENG Rong-Jun, LIU Xiao-Rui, HE Xing-heng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 116-118.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.023
    Abstract （429）      PDF （2441KB）（129）       Save
    The mature egg of Schizopygopsis younghusbandi was golden yellow, orbicular, sinking. The fertilized egg water fully expanded diameter of the eggs was（3.33±0.24） mm. The embryonic development of Schizopygopsis younghusbandi lasted 235 hours, depending on the embryonic development of the external form and typical characteristics,will be divided into fertilized eggs,blastoderm stage,cleavage stage,blastula,gastrula, neurula stage,organ formation period and incubation consists of eightstages. A full-length film larvae （10.55±0.35） mm.
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    Water quality changes of flowing water aquaculture pond for Schizothorax grahami fingerling
    ZHONG Wen-wu, GAO Hai-tao, LI Guang-hua, WU Jun-jie, YANG Chun-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 119-122.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.024
    Abstract （401）      PDF （1546KB）（137）       Save
    The water quality changes of breeding pond of Schizothorax grahami were investigated in this study,the results provide theoretical support for the breeding and proliferation,disease prevention, conservation of wild population of Schizothorax grahami. The present water quality were studied from October 2017 to September 2018. The monitoring indexwere analyzed by factor analysis method. The results indicated that the relatively poor water quality was June to September of 2018, TN and TP were the main index of affecting water quality; and the water quality of the rest months was relatively good. It was important for monitoring the concentrationchanges of ammonium-nitrogen, nitrite-nitrogen, total nitrogen and total phosphorus in aquaculture water, the water quality management should be carried out assure good water quality, enhance survival rate and reduce the risk of aquaculture.
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    Comparative analysis of biological index of Apodemus peninsulae and Apodemus agrarius
    XU Chun-yu, WANG Shu-yan, YU Cheng-wen, SU Hang, DONG Shi-peng, JIN Zhi-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 123-125.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.025
    Abstract （508）      PDF （1526KB）（149）       Save
    In order to understand the difference in the biological indicators of Apodemus peninsulae and Apodemus agrarius, the two kinds of mice were dissected in the experiment, and the body length, ear length, foot length, tail length and carcass were analyzed.Weight, body weight, visceral weight were measured, compared and analyzed. The results showed that Apodemus peninsulae and Apodemus agrarius had extremely significant differences in body length, ear length, foot length, and tail length （P<0.01）; the heart weights of Apodemus peninsulae and Apodemus agrarius. The difference in spleen weight and lung weight was very significant （P<0.01）, kidney weight was significant （P<0.05）, and liver weight was not significant. The weight difference of Apodemus peninsulae and Apodemus agrarius was not significant, but the difference in body weight was significant （P<0.05）. The difference in body weight between ♀Apodemus peninsulae and ♀Apodemus agrarius was extremely significant （P<0.01）, and the difference in body weight is extremely significant （P<0.01）. ♂Apodemus peninsulae and ♂Apodemus agrarius had significant difference in stomach weight （P<0.05）, and ♀Apodemus peninsulae and ♀Apodemus agrarius had a significant difference in stomach weight （P<0.01）.
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    The alleviation efficacy of Binhai Cynanchum bungei on high-fat-induced obesity in mice
    CHEN Qi-yan, SHI Yun, ZHANG Yan-zhou, HONG Jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 126-129.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.026
    Abstract （443）      PDF （4287KB）（183）       Save
    The alleviation efficacy of Cynanchum bungei on high-fat-induced obesity mice was studied. Thirty male mice were randomly divided into three groups, fed control diet （Con）, high-fat diet （HF, 45% energy from fat） and high-fat diet containing with Cynanchum bungei （HBS）. After feeding for 9 weeks, glucose tolerance was tested, body weight and organ weight were measured, plasma concentration of glucose and triglyceride were measured using respective commercial assay kits, HE staining and oil red staining were used to observe the number and size of adipose and muscle cells and the lipid content in liver. The results showed that fed mice with Cynanchum bungei significantly alleviated glucose intolerance. The body weight, brown fat weight, epididymal fat weight, brown fat index and epididymal fat index were significantly （P<0.05） reduced in HBS group, also the concentration of glucose and triglyceride in plasma were significantly decreased （P<0.05）. The lipid content in liver and the size of adipocyte were decreased in HBS group.
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    Research on fresh keeping effect of Valeriana officinalis L. essential oil on Summer Black grape
    HU Huan-fu, WU De-zhi, LIU Ning, RUAN Bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 130-133.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.027
    Abstract （437）      PDF （3874KB）（178）       Save
    Summer Black grape was used as experimental material, the effects of Valeriana officinalis L. essential oil of different concentrations on the flavor quality （titratable acid content, soluble solids）, shelf quality （good fruit percentage, absorption strength, weight loss rate） and texture quality （hardness） of Summer Black grape were studied. The results showed that the treatment of Valeriana officinalis L. essential oil could significantly delay the decrease of titratable acid content, increase the fruit quality, decrease the titratable acid content and soluble solids, and prolong the fruit storage period, the concentration of 0.5% Valeriana officinalis L. essential oil treatment effect was the best.
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    Optimization of extraction process of total flavonoids in prunus cerasifera by ethanol extraction
    CHENG Shi-jing, YU Bo, MAO Bo, XU Xing-xing, LI An-di, LIU Xiao-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 134-136.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.028
    Abstract （636）      PDF （1568KB）（364）       Save
    The extraction process of total flavonoids in prunus cerasifera was optimized in this paper. Crude extracts were extracted by ethanol leaching method. The detection was carried out with an ultraviolet visible spectrophotometer. The results showed that different extraction solvent, changing the concentration of extraction solvent, changing the ratio of material to liquid, changing the temperature and extraction time would affect the extraction effect of total flavonoids in prunus cerasifera. When the concentration of ethanol was 70%, the ratio of material to liquid was 1∶45, and the extraction time was 70 min in a constant temperature water bath at 70 ℃, the extraction rate of total flavonoids in prunus cerasifera was the highest, which can reach 8.24%.
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    Optimization of pickling process and study on aroma substances of taro petiole kimchi
    WANG Shen-tong, WANG Li, SUN Min, XU Ping, ZHOU Yi-feng, LUO Xing-wu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 137-143.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.029
    Abstract （538）      PDF （2798KB）（124）       Save
    Petiole of taro was used as raw material, the colony count and pH in taro pickles were adjusted by preservative, acidity were used as indexes, preservative screening and compound experiment of various preservatives were used to select the best preservative concentration;sensory score was used as the standard, experiment was used to optimize the technology of taro petiole kimchi. The aroma components in taro petiole kimchi were analyzed by headspace solid phase microextraction and gas chromatography/mass spectrometry （SPME-GC-MS）. The effect of flavor enhancer on the aroma components of taro petiole kimchi was studied. The results showed that the optimum preservative concentration at room temperature was potassium sorbate 0.63 g/kg, sodium dehydroacetate 0.36 g/kg; at low temperature, the optimum preservative concentration was potassium sorbate 0.30 g/kg, sodium dehydroacetate 0.50 g/kg and sodium pyrosulfite 0.02 g/kg; The best flavoring conditions were 0.03 g/kg flavoring agent and 0.60 g/kg potassium sorbate, and the kimchi was not pretreated. A certain amount of flavor enhancer can improve the freshness and flavor of taro petiole pickle. 0.03 g/kg of flavor enhancer contains more esters and alcohols, and the acids are moderate, and the taste is relatively good.
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    Quantitative analysis of volatile phenols from vanillin industrial wastewater
    ZHOU Bing, ZHU Lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 144-147.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.030
    Abstract （401）      PDF （1913KB）（190）       Save
    The determination of volatile phenol in vanillin industrial wastewater by 4-aminoantipyrine spectrophotometry and GC-MS was studied. The total volatile phenol in waste water was determined by 4-aminoantipyrine photometric method, and then the content of volatile phenol in each component was determined by optimized chromatographic conditions.
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    Analysis of the residues of organophosphorus pesticides and carbamate pesticides in main fruits
    LI Zhen-ya, LIU Xiang-yang, XI Yu-qiang, LIU Jin-yan, LIU Jing-ya, YIN Xin-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 148-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.031
    Abstract （422）      PDF （499KB）（387）       Save
    To explore the pesticide residues in the main fruits produced in Henan province and provide guidance for the safe consumption of fruits, random samples were taken from different fruit markets in Zhengzhou city, and the residues of organophosphorus pesticides （Ops） and carbamate pesticides （CPs） in 10 kinds of fruits were detected using enzyme inhibition method. The results showed that different amount of OPs and CPs residues were detected among different kinds of fruits and different batches of the same fruit. The inhibition rate of cholinesterase by OPs and CPs was in the range of 0 to 75.55% in total of 50 batches of fruits, and the enzyme inhibition rates in 48 batches of fruits were less than 70%, 96% of the samples were in accordance with the agricultural industry standards. Residual pesticides were mainly concentrated in the peel, and the residues of OPs and CPs could be effectively reduced by washing.
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    Study on intelligent grid forecast of forest fire risk meteorological grade in Longnan, Gansu province
    LIU Li, SU Jun-feng, HUANG Ying-wen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 152-157.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.032
    Abstract （415）      PDF （11661KB）（102）       Save
    Based on meteorological data of Longnan district three decades from 1981 to 2010 and smart grid service data offered by the Meteorological Center of Gansu province, a smart grid technology was proposed to develop delicacy management and enhance forecasting accuracy of the forest fire danger in Longnan district of Gansu province. The results showed that the meteorological rating map about forest fire danger of Longnan district was created, the prediction results about forest fire hazard can be offered by 0.05 grid of spatial resolution every twenty-four hours in coming 168 hours in Longnan district was obtained. That was very meaningful for preventing the Longnan district from fire disaster and improving the public service work about meteorological security.
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    Detection and counting of wheat ears based on YOLOv3 network
    HAO Wang-li, WEI Pei-yan, HAN Meng, ZHANG Li, XI Rui-ze
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 158-160.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.033
    Abstract （591）      PDF （7255KB）（255）       Save
    Wheat ear detection and counting are very important for wheat yield estimation and breeding. However, traditional wheat ear quantity statistics are based on manual statistical methods or remote sensing prediction methods, which are inefficient and not accurate. In order to solve the above problems, this paper proposes a wheat detection method based on YOLOv3 deep neural network. The results showed that YOLOv3 has achieved an average accuracy mAP value of 67.81% and an accuracy rate of 93% for wheat ear counting on three common wheat varieties, which can quickly and efficiently detect wheat ears in a specific label box.
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    Evaluation of agricultural environment in China’s major grain producing areas
    YI Xing-hua, HE Miao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 161-166.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.034
    Abstract （406）      PDF （1895KB）（117）       Save
    Based on PSR model, this study build a comprehensive evaluation indicator system of agricultural environment, during which the entropy method and the optimal osculating value method were used to define the weight of each indicator and to evaluation the agricultural environmental among these areas. The results showed that the major grain producing areas in China have the biggest differences in straw utilization ratio and agricultural machinery training input; under the framework of PSR, the gap in response system was greater than that in state system and pressure system. From 2011 to 2016, the Northeast Plain ranked the highest in terms of agricultural environment, the North China Plain ranked the middle, and the Yangtze River Plain ranked the lowest.
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    Research on evaluation of agricultural product logistics efficiency in China based on DEA-Malmquist model
    LI Jin-hong, LI Jing-jing, LYU Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 167-172.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.035
    Abstract （446）      PDF （1619KB）（250）       Save
    Based on the panel data of 30 provinces （cities and autonomous regions） in China from 2012 to 2018, this study analyzed the temporal and spatial changes of China's agricultural product logistics comprehensive efficiency and total factor productivity by using DEA model and Malmquist index. The results showed that,①static point of view, during the observation period, the overall of agricultural product logistics comprehensive efficiency in China was low, and the trend was “W” shape in time, and the spatial distribution pattern of high in the east, second in the middle and low in the west in space; ②dynamic perspective, from the overall level of the whole country, the total factor productivity of agricultural product logistics was on the rise, and technological progress promoted its increase; from the regional level, the growth rate of total factor productivity showed a pattern of medium fast, west second and east slow; ③the low of pure technical efficiency and slow growth were the key factors restricting the overall development of China's agricultural products logistics industry. Finally, combined with the research results, reasonable suggestions were put forward to improve the efficiency of China's agricultural products logistics.
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    Effect of rice full cost insurance on farmers' willingness to participate in insurance：Empirical analysis based on 545 rice farmers in Hubei province
    CHEN Jun, SHUAI Lang, HU Die
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 173-179.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.036
    Abstract （397）      PDF （1604KB）（300）       Save
    Taking rice insurance as an example, this study used the survey data of 545 rice farmers in four pilot counties and cities of Hubei province, and used the binary logit regression model to analyze the factors influencing farmers’ willingness to participate in the insurance. The results showed that the increase of insurance per hectare, age, the understanding of full cost insurance, the satisfaction with insurance companies’ services, and planting areas had a significant positive impact on farmers’ willingness to participate in insurance. The total premiums increase, farmers’ farming time, education level,disasters proportion and compensation amount per hectare had no significant impact on farmers’ willingness to participate in insurance. Based on the research conclusions, this study put forward countermeasures and suggestions to enhance farmers’ willingness to participate in insurance from three aspects： adjusting the structure of financial support for agriculture, increasing the financial support for policy oriented agricultural insurance; improving the compatibility of agricultural insurance policies, accelerating the establishment of agricultural insurance product system under multiple security levels; encouraging the refinement of agricultural insurance product design, and improving the accuracy of financial subsidies.
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    Empirical study on the ecological performance of tourism poverty alleviation in mountainous areas of Shangluo city
    YANG Ying-juan, LYU Jing-xian, ZHAO Fei-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 180-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.037
    Abstract （394）      PDF （1573KB）（68）       Save
    In order to quantitatively evaluate the ecological performance of tourism poverty alleviation in mountainous areas of Shangluo city, the ecological performance evaluation index system of tourism poverty alleviation was constructed from two dimensions of natural ecological environment performance and human ecological environment performance. The ecological performance of tourism poverty alleviation in mountainous areas of Shangluo city was empirically studied by using analytic hierarchy process （AHP） method and fuzzy comprehensive analysis method. The results showed that,the comprehensive evaluation result of the ecological performance of tourism poverty alleviation in mountainous areas of Shangluo city was good, the natural ecological environment performance score tended to be good, and the human ecological environment performance score tended to be medium, which reflected that the adverse impact of tourism poverty alleviation on the natural ecological environment in mountainous areas of Shangluo city was relatively small, and the promotion effect of human ecological environment was not obvious.
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    The relationship between the rural customary law and the national statutes
    HUANG Yu-yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 184-188.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.038
    Abstract （467）      PDF （1541KB）（156）       Save
    For a long time, rural customary law played an important role in rural areas with its unique normative content and normative form. New rural construction should not only emphasize the rule of law, but also pay attention to the combination with local customs, otherwise the “one size fits all” governance will become a mere formality and cannot be effectively implemented. In dealing with the problems related to rural areas, we should accurately grasp the conflict between the rural customary law and the national statutes, and strive to realize the interaction and integration between the rural customary law and the national statutes, which will be of great significance to strengthen the construction of the spirit of the rule of law in the new rural areas and the construction of the country ruled by law.
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    Research on evaluation of green development efficiency of China's marine economy
    MEI Yan-tuo, HUANG Ling-hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 189-196.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.039
    Abstract （550）      PDF （1682KB）（147）       Save
    This study used the three-stage DEA method to measure the marine economy green development efficiency in 11 coastal areas of China. In the second stage, the influence of environmental factors and random factors were eliminated., and the marine economy green development efficiency of 11 coastal areas in China were analyzed and calculated under relatively fair conditions. The results showed, ①the efficiency value obtained after the introduction of SFA to eliminate environmental variables was more in line with the actual situation; ②the current China’s marine economy green development efficiency was relatively low, and the contradiction between marine economy development and resources and environmental protection was more prominent; ③the marine economy green development efficiency value in Tianjin, Shanghai, Shandong, Guangdong were relatively high, the marine economy green development efficiency value in Liaoning, Jiangsu, Zhejiang, Fujian were at the medium level, and the marine economy green development efficiency value in Hebei, Guangxi, Hainan were relatively low; ④the increase of the area of sea area use rights and the number of employment personnel involved in the sea will lead to the decline of production rate, and the increase of marine environmental protection zones was beneficial to the marine economy green development efficiency. Strengthening the effective management of the area of the right to use the sea area, actively adjusting and optimizing the talent structure, and appropriately increasing the number of marine environmental protection zones, may be effective ways to promote the green development of marine economy.
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    Take “seven paths” to solve the problems of agricultural characteristic industry in Xianning city
    LIU Wei, PENG Jing, XU Sheng-wu, WANG Hong-wu, HUANG Hai-hong, DING Kun-ming, YU An-an
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (2): 197-201.   DOI: 10.14088/j.cnki.issn0439-8114.2021.02.040
    Abstract （367）      PDF （1622KB）（264）       Save
    Taking the tea, vegetables, ramie and kiwifruit industries in Xianning city as the breakthrough point, this study made an in-depth investigation and research on the agricultural characteristic industry in Xianning city, and put forward seven paths to solve the problems of agricultural characteristic industry in Xianning city from the aspects of scale, brand, diversification and high quality.
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    Research progress on the influence of pigmented rice germplasm and environmental factors on its color
    HUANG Zi-xuan, XIONG Yan-zhen, MA Hui-qin, CHENG Jian-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 5-10.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.001
    Abstract （532）      PDF （1425KB）（491）       Save
    Pigmented rice is one of the excellent rice germplasms and special edible taste and medicinal value due to the difference pigment components in the bran of brown rice. the pigmented rice germplasms and effects of light （light quality, light intensity and light time）, temperature, moisture, mineral elements and soil pH on their coloring were summarized, which will provide the necessary theoretical bases and technical references for the related researches and technology extensions in the future.
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    Research progress on chemical modification of polysaccharides and its structure identification
    XIE Miao, QI Xiao-ni, WU Yang-yang, ZHANG Xin, DU Xiu-ju
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 11-17.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.002
    Abstract （642）      PDF （1488KB）（453）       Save
    Polysaccharide is a kind of biopolymer, which widely existing in nature, and possessing extensive pharmacological activities. However, not all original polysaccharides from natural products have ideal bioactivity, which depends on their structures. Chemical modification of polysaccharides will be benefit to improve their bioactivity and helpful to study their structure-activity relationship. Whether derivatives were prepared successfully or not, could be proven by Fourier transform infrared （FT-IR） spectra and Nuclear magnetic resonance （NMR spectra）. Methods of chemical modification of polysaccharide and their structural characterizations by FT-IR and Nuclear magnetic resonance NMR spectroscopy were mainly summarized in this paper in order to provide some references,promote the development of polysaccharide biology.
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    Experimental study on rice-fish culture in low-lying saline-alkali land of Ningxia
    SHI Wei, YANG Juan, YANG Ling-xia, QIU Xiao-cong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 18-21.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.003
    Abstract （458）      PDF （1484KB）（388）       Save
    The experimental study on rice-fishing culture was carried out in 2018 to explore the effect and model of rice-fishing culture in low-lying saline-alkali land in Ningxia.Three treatments were set up in the experiments which named rice-crab （larva larva）, rice-fish （carp） and ordinary rice fields（control group）. The agronomic characters and soil pH were determined to discusse the effects of rice-fishing culture from the aspects of rice growth, development and yield in low-lying saline-alkali land.The results showed that the yield of rice with rice-crab and rice-fish culture increased by 3.9% and 6.1% respectively. The number of tillers in rice could be increased by rice-fishing culture.The leaf area of parietal trifoliate of rice was increased and the photosynthetic productivity of rice was improved obviously by rice-fishing culture. The dry matter quality of rice of rice-fishing culture was higher than that of conventional rice in jointing to panicle stage, which could promote the accumulation of dry matter in the overground of rice in each growing period, and thus promote the yield of rice. Compared with conventional rice cultivation, rice-fishing culture can reduce the pH of low-lying saline-alkaline land, which is beneficial to the growth and development of rice.
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    Ecological adaptability test of different millet varieties under water-permeable plastic film in arid area of middle Ningxia
    LUO Shi-wu, CHENG Bing-wen, YANG Jun-xue, LI Kai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 22-24.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.004
    Abstract （392）      PDF （2078KB）（505）       Save
    Six introduced varieties of millet （Panicum miliaceum L.） were used to carry out ecological adaptability test in arid area of central Ningxia using water-permeable film, and comparative analysis was made from growth period, agronomic characters and water use efficiency. The results showed that three excellent varieties （lines） of millet suitable for extension cultivation in this area were selected： Gu 15-5, Ning Mi 9 and Gu mi 22. It provides theoretical guidance for large-scale demonstration and popularization of new varieties of millet in arid and semi-arid areas of Ningxia.
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    Comparison of sensibility of different vegetation indices for monitoring drought
    WANG Min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 25-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.005
    Abstract （478）      PDF （8264KB）（263）       Save
    Chaohu basin was selected as study area.Normalized difference vegetation index（NDVI）,anomaly vegetation index（AVI） and vegetation condition index（VCI） were separately calculated based on monthly composite MODIS product. Precipitation anomaly percentage （Pa） derived from precipitation data of weather stations was used as reference data to estimate drought sensibility of various vegetation indices. The drought situation of the basin was analyzed by Pa, and then the correlation between vegetation indices and Pa during the drought was analyzed. Results showed that,droughts occurred in 2009 and 2013 at relatively severe extent, in which September was the most vulnerable month to drought comparing to June,July and August. The correlation between NDVI and Pa of spatial distribution was not significant, while AVI,VCI and Pa displayed relatively consistent distribution in September 2009 and September 2013. In addition, VCI was found to perform best with highest correlation coefficients across Pa among three vegetation indices,which demonstrated the highest sensibility to drought.
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    Study on statistical model of sub-rainfall runoff sediment yield based on the concept of physical genesis in Kuye river basin
    SU Ting-ting, WU Zhi-yong, HE Hai, SUN Zhao-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 31-37.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.006
    Abstract （378）      PDF （3319KB）（150）       Save
    Soil erosion is serious in the gully area of Loess Plateau. In recent years, environmental changes have led to a sharp decrease in runoff and sediment in the Yellow river basin. So, it is of great significance to establish sediment yield model in the basin for the study of erosion sediment yield. In the Kuye river basin, double accumulation curve, cumulative departure curve and multivariable nonlinear regression method were applied to study the variation trend of water and sediment using hydrologic and sediment data from 1961 to 2016, and empirical models of flood aquatic product sediment in different periods were established in the basin under cushion. The results showed that the determination coefficient of the models in different periods were all more than 0.9 and the average relative error was about 30%. By simulating the field floods with different sediment yield levels in different periods, it was found that the relative error of model simulation gradually decreased with the increase in sediment yield level, and the simulation effect of model on large sediment yield events was better than that of small sediment yield events. The simulation results showed that the model performance in heavy rain was slightly better than that in medium and light rain.
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    Study on the fertilizer efficiency of active bio-organic fertilizer on baby cabbage under open field conditon
    CHENG Yan-di, WU Hong-liang, FENG Hai-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 38-41.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.007
    Abstract （557）      PDF （1392KB）（163）       Save
    To verify the application effect of the active bio-organic fertilizer produced by Ningxia Yijiayi Biotechnology Co. Ltd. on the production of baby cabbage, the experiment was carried out to study the effect of active bio-organic fertilizer on the planting of baby cabbage（Brassica campestris L. ssp. pekinensis Olsson） under the production conditions of typical cold vegetables in Yuanzhou district and Xiji county of Ningxia. The results showed that application of active bio-organic fertilizer not only increased the yield of baby cabbage, improved the nutritional quality of vitamin C, soluble solids, soluble sugar and soluble protein, but also enriched the soil, buffering the alkaline soil environment and improving soil fertility.
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    Study on the effects of phytoplankton in eutrophic water around farmland by aquatic plants and Daphnia magna
    ZHANG Chun-xue, WEI Xiao-cheng, WANG Han-yang, ZHENG Xiang-qun, YANG Bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 42-49.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.008
    Abstract （379）      PDF （3263KB）（165）       Save
    To study on the effects of phytoplankton in eutrophic water around farmland by aquatic plants and Daphnia magna, the combination of two organisms on the restoration of eutrophic water were investigated by taking Daphnia magna as the representative of filter-feeding animals, Myriophyllum aquaticum and Ceratophyllum demersum as the representatives of submerged plants. The results showed that D. magna significantly inhibited phytoplankton density, cyanobacteria density, chlorophyll-a concentration and the contents of microcystin, and the low density （25 ind/L） group had better inhibitory effects. In the late period of the test （15 d to 20 d）, the inhibitory effect was weakened. At the end of the test （20 d）, there was no significant difference in the contents of microcystins between the high density （100 ind/L） group and the control group. Similarly, both M. aquaticum and C. demersum could inhibit the increase of phytoplankton density, cyanobacteria density and chlorophyll-a concentration, and the inhibitory effect of M. aquaticum was better. However, C. demersum had non-significancant inhibition effect on the contents of microcystin. At the end of the experiment, the submerged plants and D. magna combination had stronger inhibitory effect than the single D. magna and single plant, and the combination of low-density D. magna and M. aquaticum was the best. Compared with the single D. magna treatment, the submerged plants and D. magna combination can effectively control the rise of the microcystin produced in the late stage.
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    Carbon effect accounting and low carbon optimization of land use structure in Huarong county
    LU Hua-shan, WU Dan, MAO De-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 50-55.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.009
    Abstract （486）      PDF （1472KB）（268）       Save
    In order to understand the current situation of carbon effect of land use in Huarong county and realize carbon emission reduction from the perspective of land use, the low-carbon optimization of land use structure was carried out to promote the low-carbon development of Huarong county’s economy. The carbon effect of the land use structure of Huarong county in 2006, 2012 and 2020 was estimated by mathematical measurement method, and then three optimization schemes of the low carbon land use structure at the end of the 13th Five Year Plan period were calculated by constructing the carbon effect evaluation index of the low carbon land use structure optimization and the multi-objective linear programming model. The scheme with the strongest comprehensive carbon accumulation capacity was selected as the optimal scheme. Under this low carbon scheme, 71 223.70 hm2 of arable land, 8 744.80 hm2 of garden land, 18 790.87 hm2 of forest land, 19 569.94 hm2 of other agricultural land, 14 207.55 hm2 of residential land, 14 207.55 hm2 of industrial and mining land, 1 329.83 hm2 of land for transportation, 2 459.57 hm2 of land for water conservancy facilities and 340.95 hm2 of other construction land were selected. The comprehensive carbon storage of land use structure under this scheme was 514 900 tons more than that of 2020 plan, the area of garden land and forest land increased 249.12 hm2 and 147.90 hm2 respectively, and the area of construction land increased 155.88 hm2. Under the optimized plan, the comprehensive carbon storage capacity of land use structure of Huarong county is better, which meets the requirements of low carbon economic development of Huarong county.
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    Isolation and anti-monoamine oxidase activity of endophytic fungi from four medicinal plants
    GOU Wen-bo, YANG Zhong-duo, ZHOU Ge-ge
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 56-59.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.010
    Abstract （379）      PDF （1395KB）（265）       Save
    Endophytic fungi were isolated and identified from the roots and stems of four medicinal plants, Euphorbia pulcherrima,Salvia przewalskii, Acanthopanax senticosus and Hypericum ascyron. The anti-monoamine enzyme activity of ethyl acetate extract of fermentation product from these endophytes was screened, and chemical constituents from these endophytes were isolated by column chromatography and spectroscopy methods. The results showed that 20 endophytic fungi strains were obtained. Among them, the inhibition rate of anti-monoamine oxidase activity of SJ-2, WJ-3, HJ-1 was 83.8%, 84.2%, 71.9%, respectively. According to the colony characteristics and morphological characteristics, the endophytic fungus SJ-2 was identified as Fusarium sp., WJ-3 was identified as Penicillium sp., and HJ-1 was identified as Alternaria sp.. Three compounds, Enniatin B, Monomethylsulochrin, Fumitremorgin C were isolated from strain SJ-2.
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    Study on layout optimization of rural residential area based on TOPSIS model：Taking Agricultural Valley in Shanxi as an example
    BAI Xue, LIU Li-wen, DUAN Yong-hong, XU Li-shuai, YANG Yong-sheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 60-65.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.011
    Abstract （434）      PDF （2972KB）（106）       Save
    It is of great significance to scientifically divide the types of rural residential areas and formulate corresponding optimization strategies for the optimization of spatial layout of rural residential areas in this area. Taking Agricultural Valley in Shanxi province as the research area, the spatial characteristics of rural residential area such as scale, shape and aggregation degree were analyzed by using landscape pattern index; 12 indexes including natural environment, production and life and social economy were selected to construct suitability evaluation system, and mean square error decision-making method and TOPSIS model were used to evaluate the suitability of rural residential area layout,and the corresponding optimization strategy were put forward. The results showed that the spatial distribution of rural residential areas of Agricultural Valley was scattered, and mainly distributed the area with atitude of below 900 m,slope of 2° to 15° and on east and west direction, and the area that was 2.0 km away from cultivated land, 3.0 km away from town, 1.5 km away from water source, 1.0 km away from county highway, 0.3 km away from rural road and 1.0 away from other infrastructure;The suitability of rural residential area layout was generally suitable, in which the most suitable, highly suitable, moderate suitable, low suitable and unsuitable areas accounted for 0.02%, 4.09%, 49.20%, 46.63% and 0.05% respectively; From aspects of the comprehensive evaluation results and the overall planning of Aagricultural Valley in Shanxi, three optimization strategies of relocation and merging were put forward, including the agglomeration development type, retention and upgrading type and moving type. The research results can be applied to the land management and overall planning construction of rural residential areas in this area, and can provide reference for the layout optimization of rural settlements in the same type of areas.
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    Effects of rooting powder on growth and development of flue-cured tobacco floating seedlings
    LU Ya-chun, LI Zi-lin, NIAN Fu-zhao, WEI Zhong, NONG Shi-ying, ZHAO Lei-feng, FAN Dong-sheng, LUO Gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 66-69.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.012
    Abstract （563）      PDF （1387KB）（403）       Save
    Cultivation of strong seedlings is a prerequisite for the production of high-quality flue-cured tobacco, there are many deficiencies in the floating seedling technology currently commonly used in China. The results showed that 25 mg rooting powder mixed with 1.1 kg substrate can improve the quality of tobacco seedlings, mainly manifested in thicker stems, increased root length, increased number of first and second side roots, and improved root vigor. On the contrary, after a certain concentration, rooting powder will reduce the quality or effect of tobacco seedlings.
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    Effects of exogenous 5-aminolevulinic acid on seed germination and seedling growth of cucumber under drought stress
    DENG Shuo-zhen, LIU Hui-jun, WANG Hong-qin, WANG Hong-yan, ZHANG Qian-ru, ZHANG Mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 70-74.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.013
    Abstract （410）      PDF （1466KB）（236）       Save
    Taking Jinyun NO.5 cucumber（Cucumis sativus L.） as the test materials, the experiment was conducted to study the effects of different concentrations 5-aminolevulinic acid（5-ALA） on seed germination and seedling growth of cucumber under the condition of 20% PEG-6000 drought stress. The results showed that, drought environment seriously inhibited the germination of cucumber seeds, and different concentrations of 5-ALA can alleviate the effects of drought stress on cucumber seed germination. With the increase of 5-ALA concentration, the germination rate, germination index and vigor index of seeds first increased and then decreased. Among them, 0.5 mg/L is the best concentration. Drought environment inhibits the growth of cucumber seedlings. Appropriate concentration of 5-ALA can significantly increase the drought resistance of cucumber seedlings. At a concentration of 0.5 mg/L, the dry weight, strong seedling index, root activity, soluble sugar content, free proline content, total chlorophyll content and carotenoid content of cucumber seedlings respectively increased by 99.13%, 104.51%, 70.42%, 40.79%, 163.46%, 38.59%, 126.92% compared with the dry environment.
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    Effect of “chang” shape training system on yield, quality and economic benefit of table grape in Kuitun area of Xinjiang
    SONG Mei, BUKA Ouerna, HUANG Min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 75-78.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.014
    Abstract （470）      PDF （1378KB）（359）       Save
    Red globe, flame and Crimson grape were taken as experimental materials to study the effects of “chang” shape training system and dragon training system which is widely used on table grape in Xinjiang on phenophase, quality, yield and economic benefit. The results showed that, the maturation in the “chang” shape training system was earlier than dragon training system, which gained higher content of soluble solids, higher primary fruit rate and commercial fruit rate, equivalent output, and better economic benefit. The “chang” shape training system has more advantages than the dragon training system, and is suitable to be popularized and applied on table grape in Kuitun area of Xinjiang.
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    Effects of altitude, nitrogen application, planting density and their interaction on yield and quality of flue-cured tobacco in Lichuan tobacco area
    SHI Chao, YU Feng-min, SHANGGUAN Li, GAO Yan-bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 79-85.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.015
    Abstract （484）      PDF （2194KB）（374）       Save
    Two-year field experiment were carried out to study the effects of different nitrogen application, planting density, different altitudes on the yield and quality of flue-cured tobacco leaves in Lichuan tobacco area of Enshi. The results showed that the optimum amount of nitrogen application was 97.5 kg/hm2 on 1 000~1 100 m altitude, and the cultivation density was 15 150~16 650 plants/hm2. On 1 100~1 200 m altitude, the cultivation density was 15 150 plants/hm2 with 97.5 kg/hm2 nitrogen application, but the cultivation density was 16 650 plants/hm2 with 112.5 kg/hm2 nitrogen application. The optimum amount of nitrogen application was 97.5 kg/hm2 on 1 200~1 300 m altitude, and the cultivation density was 16 650 plants/hm2. The effect of nitrogen fertilizer on the yield and quality of flue-cured tobacco was the greatest, followed by density, and the interaction between them was smaller. The effect of altitude on the yield and quality of flue-cured tobacco was next to nitrogen application amount and cultivation density. In conclusion, under the condition of 1 000~1 300 m altitude in Lichuan tobacco area of Enshi, the suitable nitrogen application amount and cultivation density were 97.5 kg/hm2 and 15 150~16 650 plants/hm2, respectively.
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    Analysis on landscape pattern changes in the Silk Road Economic Belt：A case study of the main urban area of Aksu city
    MIHRIGUL Sultan, ALIMUJIANG Kasimu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 86-92.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.016
    Abstract （542）      PDF （4323KB）（277）       Save
    Taking the main urban area of Aksu city as an example, the characteristics of Aksu city’s urban landscape pattern and evolution process were studied and discussed with the guidance of landscape ecology theory and the application of GIS and RS technology. The results showed that, the constructed land area and cultivated land area in Aksu city showed an increasing trend, while the unused land area and water area showed a decreasing trend, and the change of the total forest area was unstable, showing an increasing trend and then decreasing trend. In terms of the change range and change speed of landscape elements, construction land had the largest change range and the fastest change speed from 1989 to 2018; water area had the second change range and change speed; forest land, cultivated land and unused land had relatively stable change range and change speed. It shows that, in the past 30 years, the Aksu city’s expansion of construction land area is based on the conversion of unused land and forest land, which leads to the continuous expansion of urban area and the increase of urban demand for water resources, making the water area of the research area show a decreasing trend. From the point of the study area landscape level, in 1989—2018, the number of patches（NP） and patch density （PD） showed increasing trend, separating degree index （SPLIT） first increased and then reduced, Shannon diversity index （SHDI） and Shannon evenness index （SHEI） showed a trend of increasing, indicating that in the process of urban development, the degree of landscape heterogeneity and fragmentation in Aksu city increased, landscape patch richness increased, this means that the impact of human economic activity is more and more bigger.
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    Effects of 2,4-Epibrassinolide on physiological characteristics of alfalfa to high temperature
    HUANG Yi-long, PANG Tian-de, SHI Jing, WEI Jin-yi, YAO Na
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 93-95.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.017
    Abstract （397）      PDF （2593KB）（252）       Save
    In order to study the effects of exogenous 2,4-Epibrassinolide（EBR） on the heat tolerance of alfalfa（Medicago sativa L.）, taking alfalfa WL525 as the material, the effects of different concentrations of EBR on physiological characteristics of alfalfa under high temperature were studied. The results showed that under high temperature stress, when the concentration of EBR was 0.50 mg/L, the content of provine could be significantly increased, soluble protein loss could be slowed down, and antioxidant activity of plants could be maintained. Therefore, the heat damage of alfalfa to high temperature stress can be alleviated to a certain extent by applying exogenous EBR.
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    Effect of heavy metal copper stress in soil on biochemical indexes of nourishing grass No.1
    ZHANG Li, ZHAO Zhong-tao, GU Jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 96-99.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.018
    Abstract （358）      PDF （1397KB）（208）       Save
    Using potted experiments,the effect of heavy metal copperin soil on biochemical index of nourishing grass No.1 was studied. The results showed that,with the increase of the concentration of heavy metal copper solution,total protein content and sugar content of nourishing grass No.1 were increased first and then decreased,SOD activity and POD activity showed a trend of increasing first and then decreasing, too. This study can be the standard of heavy metal copper content in the soil of heavy metal polluted areas in China, it provides some references for the development and utilization of nourishing grass No.1 to repair the soil polluted by heavy metal copper,lawn green space construction and planning. Key words： nourishing grass No.1; copper stress; biochemical index
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    Optimization extraction through Box-Behnken response surface methodology and antioxidant activity in vitro of polysaccharides from aerospace hybrid Broussonetia papyrifera leaves
    YAN Dan, CAI Yan-qu, LI Tie-cheng, CHEN Bi-tian, FENG Hua-zi, ZHANG Zhi-peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 100-105.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.019
    Abstract （412）      PDF （4470KB）（232）       Save
    Taking the yield rate of polysaccharides as evaluation indicator, Box-Behnken response surface methodology was employed to optimize extraction technology of polysaccharides from Broussonetia papyrifera leaves by heating reflux extraction method based on single factor tests. And the antioxidant activity of polysaccharide from Broussonetia papyrifera leaves was evaluated through the scavenging capabilities of DPPH·, ABTS+·, ·OH and O2-· free radicals and reducing power. The results showed that the best extraction conditions were as follows： liquid ratio for 1∶40 g/mL, and extraction time for 2.5 h, extraction times 3 times. Under this condition, the yield rate of polysaccharides was （8.37±1.03）%. The crude polysaccharide and pure polysaccharide from Broussonetia papyrifera leaves had obvious effect on scavenging ability of DPPH·, ABTS+·, ·OH and O2-· free radicals, with IC50 values of 2.62、0.067、0.94、2.07 mg/mL. And reducing power increased with the increase of polysaccharide concentration. The extraction technology of polysaccharide from Broussonetia papyrifera leaves is stable and feasible. And has good antioxidant activity in vitro, which can be used as a new antioxidants and free radical scavengers.
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    Study on the enzyme expression and the washing performance based on the herbal saponin extracts as substrate
    LIU Yu-ting, ZHANG Yu-ting, LAN Su-gui, CHEN Yu-quan, LI Li, TAN Qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 106-111.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.020
    Abstract （429）      PDF （2775KB）（119）       Save
    The Bacillus subtilis strain （CICC 23083） and Bacillus licheniformis （CICC 21085） were utilized in this study for expression of lipase, protease and pectinase in vitro using the high concentration of the saponin extracts as fermentation substrates. When the fermentation of CICC 23083 in the substrates with addition of 3% yeast paste was performed, the protease and pectinase exhibited the maximum activity of 792.6 and 4 352.9 U/mL at 32 h, respectively. When 9% sucrose was added to the substrate, the maximum activities of protease and pectinase up to 258.5 and 2 497.5 U/mL occurred at 32 h and 16 h, respectively. When the mixed fermentation with the two strains for enzyme expression was conducted in the substrates with addition of 3% yeast, the enzymatic activities of lipase, protease and pectinase reached the maximum values of 166.7, 245.8 and 4 281.6 U/mL, respectively. When further addition of 7% sucrose in the substrate was implemented, the maximum lipase activity reduced to 133.3 U/mL, while the highest activities of protease and pectinase were increased to 327.4 and 3 318.2 U/mL, respectively. Additionally, the washing performance value of the mixed-fermentation broth was increased by 11.1, 15.2 percentage points compared to that of the fermentation broths of single strain, and 22.6 percentage points compared to that of the initial saponin extract. The foam height of high concentration saponin extract didn’t change significantly before and after fermentation, and remained at （157±5） mm.
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    Study on extraction technology and content determination of total flavonoids from Chinese medicine Argyreia aceta Lour.
    LIU Rui, MA Xiu-mei, ZHOU Jin-gen, MA Jia-bao, WEI Li-fu, CHEN Sheng-bin, ZHAO Feng-xian, CHEN Hong-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 112-115.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.021
    Abstract （428）      PDF （1556KB）（318）       Save
    The total flavonoids of Argyreia aceta Lour. were extracted by reflux extraction method. The effects of extraction method, extraction solvent concentration, extraction volume and extraction time on the total flavonoids content of the medicinal materials were investigated by single factor experiment. The orthogonal test was used to optimize the extraction conditions. The best extraction process for a total flavonoid of Argyreia aceta Lour. was screened out. The results showed that the optimal extraction process of a total flavonoid of Argyreia aceta Lour. was 75% methanol, the ratio of material to liquid was 1∶30, and the reflux extraction time was 1.0 h. This method repeatability was good, the method was stable,and can effectively determine the content of total flavonoids in Argyreia aceta Lour. medicinal material, and provide a scientific basis for the quality standard research of this medicinal material.
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    Optimization of extraction process and determination of total flavonoids in Hypericum japonicum Thumb.
    WU Bing, MO Ting-ting, LU Mei-yuan, ZENG Chao, ZHAO Feng-xian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 116-119.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.022
    Abstract （472）      PDF （1408KB）（353）       Save
    The total flavonoids of Hypericum japonicum Thumb. was extracted by reflux extraction method. The effects of extraction method, extraction solvent concentration, extraction volume, and extraction time on the total flavonoid content of medicinal materials were investigated by single factor test. Orthogonal experiments were used to optimize the extraction process conditions and screen the best extraction technology of total flavonoids from Hypericum japonicum Thumb.. The results showed that the optimal extraction process of total flavonoids from Hypericum japonicum Thumb. was 75% ethanol, the material-liquid ratio was 1∶30（g/mL）, and the reflux extraction time was 1.0 h. This method in this experiment has good repeatability, and the method is stable and feasible,and can effectively determine the content of total flavonoids in Hypericum japonicum Thumb., and provide a certain scientific basis for the study of the quality standard of this medicinal material.
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    Chemical composition and antimicrobial activity of the essential oil from Rhododendron capitatum leaves
    JI Ruo-wei, YANG Yang, LIN Peng-cheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 120-124.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.023
    Abstract （352）      PDF （1443KB）（228）       Save
    The essential oil was extracted by steam distillation, and the components of essential oil were qualitatively analyzed by GC-MS combined with GC retention index. The bacteriostatic effect of Rhododendron essential oil on 9 kinds of pathogenic bacteria was preliminarily studied by filter paper diffusion method. The results showed that 82 compounds were identified in January, 58 in June and 25 in October. The essential oil of leaf of Rhododendron capitatum has certain inhibitory effects on Micrococcus lutea, Staphylococcus aureus, Streptococcus hemolytis-β, Bacillus subtilis and Salmonella paratyphy B. The essential oil components in the leaves of Rhododendron capitatumin different seasons are quite different, which is a reference for the development and utilization of the essential oil in the leaves of Rhododendron capitatum.
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    Analysis of trace elements in dandelion tea extract and the dissolution characteristics by ICP spectroscopy
    LIU Bing-bing, LIU Jia, ZHANG Chen-ling, HAN Mei, JIA Na
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 125-128.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.024
    Abstract （426）      PDF （2004KB）（190）       Save
    A method for the determination of trace elements zinc, copper, manganese, lithium, nickel, lead, strontium, cadmium, iron and barium in dandelion tea extract by inductively coupled plasma-optical emission spectrometry was established and the dissolution characteristics was studied. Under the optimal working conditions of ICP spectrometer, the wavelengths of the elements were chosen and the trace elements in the dandelion tea sample extract were analyzed with the recoveries of 95.7%~104.8% and relative standard deviation （RSD） of 1.0%~3.2%。The two methods of brewing and boiling had little effect on the dissolved amount of trace elements. The content of Sr in the dandelion tea extract was higher, followed by Mn and Zn, and neither Cd nor Pb was detected. The dissolved amount of trace elements in the dandelion tea extract increased linearly with the increase of brewing time. With the increase of the times of brewing, the dissolved amount of trace elements in the dandelion extract gradually decreased. After two times of brewing, the dissolution rate of Fe was 64.5%, and the dissolution rate of other trace elements was between 93.3%~100.0%.
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    Experimental study on quality control of Yaobath powder
    LI Jin-zhou, CHEN Zi-jun, LIU Wen-jun, LU Hui-min, LIN Yu-gang, WEI Jiang-cun, CHEN Yong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 129-133.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.025
    Abstract （353）      PDF （4263KB）（168）       Save
    The content of moisture、ash、acid insoluble ash and water-soluble extract of Yaobath powder were determined according to the general principles of “Chinese Pharmacopoeia” （Volume IV）,2015; The microscopic identification characteristics of Yaobath powder was observed, and TLC characteristics was identified. The content of β-asarone in Yaobath powder was determinated by HPLC. It was suggested that the water content in Yaobath powder should not exceed 9.00%, ash content should not exceed 10.00%, acid insoluble ash content should not exceed 1.30%, and water-soluble extract content should not be less than 19.00%. The microscopic characteristics of Albizia julibrissin Durazz、Spatholobus suberectus Dunn and Acorus tatarinowii Schott were obvious. The TLC spots were clear and negative without interference. The content of β-asarone in Yaobath powder range from 0.71% to 0.85%, RSD was 2.48%. The content of β-Asaron in Yaobath powder of different batches was basically stable. The established quality control method had good repeatability and specificity, and can be used for the quality control of Yaobath powder.
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    Determination of trace elements in pomegranate seed and pomegranatepeel in Lintong by flame atomic absorption spectrometry
    WANG Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 134-136.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.026
    Abstract （418）      PDF （1435KB）（200）       Save
    Pomegranate seed and pomegranate peel are rich in essential trace elements, whose nutritional value and medicinal value are extremely high. The samples were treated with V（HClO4 ）∶V（HNO3）=1∶4 mixture system,the content of six traceelements（Cu,Fe,Zn,Mg,Ca,Mn） in pomegranate seed and skin in Lintong district, Shaanxi province were determined by flame atomic absorption spectrometry. The method was rapid, simple, and withgood accuracy and high sensitivity. The relative standard deviation of 6 parallel determination were 0.55%~3.67%, and the recovery rate was from 92.57% to 105.73%. The results showed that the content of traceelements in pomegranate peel was higher than that in pomegranate seed, which provided scientific basis for the nutritional value exploration and pharmacology research of pomegranate seed and pomegranate peel in Lintong area.
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    Preliminary test of chemical components and determination of total flavonoids in the root of Lespedeza formosa
    ZHANG Ying, FU Jing, WANG Xiao-xun, ZHONG Qiu-jie, YU Peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 137-140.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.027
    Abstract （410）      PDF （1447KB）（394）       Save
    The extracted mixture of the root of Lespedeza formosa from purified water, 95% ethanol and petroleum ether were studied by test-tube, chromogenic and paper reaction. Rutin as a reference substance and aluminum trichloride as chromogenic agent, the content of the total flavonoids were determined by UV-Vis spectrophotometry. The preliminary test indicated that the root of Lespedeza formosa contained flavonoids, saccharides, polysaccharides, glycosides, organic acids, phenols, tannins and anthraquinones. The well linear ranges of rutin were 0.004~0.040 mg/mL（r=0.999 6） and the regression equation was Y=35.142 2X+0.040 645 3. The average percentage of recovery was 95.29%, the RSD was 0.65%. The total flavonoids content of 10 batches in root of Lespedeza formosa were 31.84~75.85 mg/g. The chemical components in the root of Lespedeza formosa were determined. The method of determination of the total flavonoids is stable and reliable. It provides experimental reference for developing and utilizing the root of Lespedeza formosa.
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    Comparison of RNA extraction methods from tomato leaves and fruits
    GUO Li-wen, BAI Fu-hong, SHA Xiao-dong, ZHANG Feng-qin, WANG Lin, WANG Xiao-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 141-144.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.028
    Abstract （614）      PDF （1706KB）（376）       Save
    Taking tomato variety Moneymaker（MM） as the material， compared the extraction effects of three methods including kit method， Trizol method and Trizol improved method on total RNA from tomato leaves and fruits at different stages， and measured the concentration， purity and integrity of total RNA extracted samples by nucleic acid protein detector and agarose gel electrophoresis respectively. The results showed that in terms of tomato leaves， the purity of total RNA extracted by the three methods was good； Among the three methods， Trizol improved method was the most suitable method for extracting total RNA of tomato leaves. For the tomato fruits of different periods， the Huayueyang kit method had the best effect of extracting total RNA from the fruit in the green fruit stage and the color transformation stage， with the highest concentration. The cost was the highest， and the best method for extracting the mature fruit RNA was the Trizol improved method， which had the best integrity and lower cost. Functional research and other molecular biology research provide a technical basis.
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    Research on meat pigeon food quality control system based on the perspective of production chain
    LU Xing-hua, LIU Pei-hao, ZHANG Hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 145-148.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.029
    Abstract （369）      PDF （2580KB）（151）       Save
    Aiming at the problems of poor control effect of traditional meat pigeon food quality control system, this paper designs and proposes a meat pigeon food quality control system based on the perspective of the production chain. Combined with MySQL data management system and Tomcat server, the modules of meat pigeon food production and slaughter were designed. At the same time, the system dynamics method is used to establish a meat pigeon food quality control model based on the perspective of the production chain. The model is solved by genetic algorithms to obtain the best meat pigeon food quality control plan to complete the meat pigeon food quality control based on the perspective of the production chain. Simulation results show that the proposed method can effectively ensure the quality of meat pigeon food, and at the same time provide relevant reference basis for relevant departments.
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    Study on the technical efficiency of wheat production in China based on stochastic frontier model
    LI Zhong-cai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 149-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.030
    Abstract （382）      PDF （1403KB）（112）       Save
    The cointegration theory was used to test the relationship between factors affecting wheat production and output. Thus seed cost， fertilizer cost and pesticide cost were selected as explanatory variables， the stochastic frontier model of wheat technical efficiency was established. The technical efficiency of wheat production in China from 1998 to 2017 was calculated. The technical efficiency of wheat in 1998 was 0.263 4 and 0.839 7 in 2017， showing an increasing trend， with an average of 0.591 2. This showed that the factors of production management and scientific and technological progress effectively promoted the increase of wheat production and income. The calculation showed that under the same input， the technical efficiency of wheat had a growth space of 16.03%， and the estimated value of the constant term of the regression model was positive and significant， which showed that the progress of science and technology played a continuous role in wheat production. Although the technical efficiency increased year by year， but the growth aftereffect was insufficient， the growth scope was smaller and smaller. Finally， some suggestions are put forward from the following four aspects： Planting policy， agricultural science and technology progress， the combination of agricultural production factors and planting skill training.
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    Study on the technical efficiency of facility tomato based on stochastic frontier model： Taking Shandong province as an example
    GAO Fa-jin, LI Zhong-cai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 152-154.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.031
    Abstract （427）      PDF （1392KB）（189）       Save
    The facility tomato industry is a major advantage industry in Shandong province， which helps the farmers to increase their income and get rid of poverty. Improving the efficiency of tomato production technology is of great practical significance to improve the quality of tomato， increase the income of vegetable farmers and reduce the poverty-stricken population. The technical efficiency of facility tomato in Shandong province was calculated by using the method of stochastic frontier model， with an average of 0.872 6. The ARMA（1，1） model was used to predict the change trend of technical efficiency of facility tomato， and the predicted results showed that the technical efficiency of protected tomato showed an increasing trend， indicating that the technical efficiency of facility tomato in Shandong province had a growth potential， but the growth potential of technical efficiency was weakened.
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    The optimal setting of forest crimes under the demand of ecological protection
    HUAN Ji-e, MA Pei-yao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 155-160.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.032
    Abstract （404）      PDF （1424KB）（142）       Save
    Forest has important ecological function. It is necessary to study the current situation of forest crimes responding to ecological demands. China's criminal law had set up seven kinds of forest crimes. The criminal law setting and judicial practice of forest-related crimes in China have three characteristics： Judicial normalization, regional differentiation and crime differentiation. However, at present, it can not fully respond to the needs of ecological protection in China. We should pay attention to the connection between administrative punishment and criminal punishment for forest crimes, and set up the crime of destroying the ecological environment, so as to optimize the establishment of charges and better respond to the demands of ecological protection.
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    Suitability evaluation of tourism endowment destinations based on GIS： A case study of Hubei province
    YANG Yu-lan, TANG Jia-yao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 161-166.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.033
    Abstract （396）      PDF （3261KB）（536）       Save
    The logarithmic fuzzy priority programming fuzzy analytic hierarchy process （LFPP-FAHP） was used to establish the evaluation index system for the development of tourism endowment destinations. With the ArcGIS software platform, using the 100 m×100 m grid as the basic unit, 25 major impact factors were selected to quantitatively evaluate the suitability of 17 cities and counties in Hubei province as tourism endowment destinations. The research showed that the suitability index range was 0.39~0.79, the median value was 0.59, and showed a good general suitability of each region in Hubei province. From the perspective of spatial distribution characteristics, the spatial distribution characteristics of the suitability of tourism endowment destinations in Hubei province were obvious, and the overall trend of the spatial distribution pattern was “three pillars” and gradually expanded outward; The spatial distribution structure presented fragmented structural features.
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    Research on the coordinative development of three cities in southern Shaanxi based on niche theory
    YANG Ying-juan, ZHOU Xiao-ting, YANG Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 167-170.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.034
    Abstract （371）      PDF （1464KB）（208）       Save
    According to the niche theory and urban niche,the comprehensive level of urban development is measured , the utilization efficiency of urban resources is measured by niche width, and the industrial similarity between cities is measured by niche overlap index. Taking three cities in southern Shaanxi（Hanzhong, Ankang and Shangluo） as the empirical objects, this study put forward the evaluation model of urban comprehensive development, calculated the niche, niche width and niche overlap index of the three cities from the perspective of niche, analyzed the competition and cooperation relationship of the three cities in southern Shaanxi. The results show that Hanzhong city is the core city of the development of southern Shaanxi urban agglomeration, the resource utilization rate of the three cities in southern Shaanxi has been gradually improved in recent years, and the industrial structure of the three cities in southern Shaanxi is highly similar, which leads to more competition among urban development. It put forward suggestions for the development of urban agglomeration in southern Shaanxi, so as to provide some theoretical reference for the overall development of the three cities in southern Shaanxi.
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    Evaluation of sustainable intensive utilization of cultivated land based on PSR model： Take Beijing-Tianjin-Hebei region as an example
    LIU Yun-xuan, ZHAO Hua-fu, WANG Jing-heng, ZHANG Shou-guo, LI Jie, ZHONG Rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 171-178.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.035
    Abstract （459）      PDF （3472KB）（93）       Save
    Based on combing relevant literature, the evaluation system of sustainable intensive use of cultivated land based on the “stress-state-response” （PSR） model was constructed, and taking Beijing-Tianjin-Hebei region as the research area, the sustainable intensive use of cultivated land use the status quo and changing characteristics were evaluated. The results showed that the sustainable intensification index of cultivated land in Beijing-Tianjin-Hebei regions increased from 2005 to 2015, but showed irregular fluctuations. The distribution of cold and hot spots in the sustainable intensive use of cultivated land showed a pattern of “hot in the central region and cold in the north and south”. The overall coordination of the system showed a stable trend from 2005 to 2015.The preliminary evaluation system of sustainable intensive use of cultivated land and its empirical evidence in Beijing-Tianjin-Hebei region can provide reference for the discussion of sustainable intensive use of cultivated land.
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    Evaluation of sustainable utilization of natural resources in the Yangtze river economic belt： Based on the improved three-dimensional ecological footprint model
    ZHANG Lu, XIA Zheng-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 179-189.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.036
    Abstract （359）      PDF （6152KB）（228）       Save
    Based on the three-dimensional ecological footprint model, this study selected the footprint breadth and ecological footprint depth of nine provinces and two cities in the Yangtze river economic belt from 2007 to 2017 as the research focus, and analyzed the dynamic characteristics of natural capital in the Yangtze river basin by using indicators such as utilization rate of capital flow and utilization ratio of stock flow. The results show that the three-dimensional ecological footprint of the Yangtze river economic belt is increasing, the change rate of footprint breadth and footprint depth is generally changing in the same direction, and the fluctuation gradually tends to be stable after 2015, and the footprint breadth and footprint depth continue to increase at a stable speed after rapid improvement, that is to say, the development level of the Yangtze river economic belt has reached a new level since 2013, and the stock and flow of natural resources demand is higher and increasing. The consumption patterns of flow capital and stock capital are different in different geographical environment regions. The energy consumption among regions is unbalanced and the land use among different regions is unreasonable. Cultivated land and grassland are facing severe situation.
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    Analysis on the path of agricultural scientific research institutes to promote the industrialization of intellectual property
    ZHANG Ya-lin, WANG Wen-kui, WU Dong-mei, CHENG Si-xian, SHI Yong-qiang, MA Xiao-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 190-192.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.037
    Abstract （440）      PDF （1346KB）（287）       Save
    The recent situation and problems of agricultural scientific and technological achievements in China were summarized. The entire process of agricultural intellectual property management should be strengthened. Moreover, we should strengthen the team construction of intellectual property management and promote the deep integration of scientific research institutes and enterprises, in order to promote the industrialization of intellectual property.
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    The construction and application of monitoring and evaluation index system of Guangxi agricultural science and technology park：From the perspective of innovation driven rural revitalization and development
    SU Xiu-gang, ZENG Zhi-kang, QIN Ze-lin, MO Xiao-xiang, ZHONG Cui, YAN Lan-hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 193-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.038
    Abstract （380）      PDF （1631KB）（234）       Save
    Based on innovation drive rural revitalization of the development of Guangxi agricultural science and technology park construction demand, combined with the practical application and the literature review, taking park innovation main body as the breakthrough point, built park monitoring evaluation index system, using factor analysis and clustering analysis method to seek the internal relation and structure of its evaluation variables, tried to realize campus monitoring and evaluation simplification and enhance national strategic fit, strengthen problem oriented application. The results showed that scientific and technological innovation, output benefit, scientific and technological education, achievement demonstration and precision assistance to farmers were the main factors affecting the competitiveness of the park, among which scientific and technological innovation had the greatest influence. Relevant management departments should respond to the five types of park development, namely, innovation-led, agglomeration and high-efficiency, technology demonstration, industry-led, and sci-tech exploration, and focus on building up the weak spots.
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    Comprehensive evaluation and realization degree of rural revitalization in Henan province
    YAN Han
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 5-9.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.001
    Abstract （688）      PDF （1495KB）（731）       Save
    The implementation of the rural revitalization stratege plan in Henan province is directly related to China's food security and the comprehensive realization of agricultural and rural modernization. This study used the subjective and objective combination weighting method to determine the index weight, and made a comprehensive evaluation and realization degree analysis of rural revitalization in Henan province. The results showed that the overall rising trend of rural revitalization in Henan province was obvious; rural revitalization, ecological livable, industrial prosperity, effective governance and some sub indicators can exceed the target; rural civilization and affluent life can not meet the target; some sub indicators still had a large gap and were difficult to meet the target. It was suggested that Henan province should continue to increase the expenditure on agriculture, forestry, water and urban and rural social affairs to support agriculture, improve the grain yield and agricultural labor productivity, improve the level of rural human capital investment, and increase farmers' income in an all-round and multi-channel way.
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    Study on the implementation ways of rural revitalization in Changji prefecture of Xinjiang
    AI Hong-juan, MAO De-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 10-12.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.002
    Abstract （426）      PDF （1307KB）（185）       Save
    The agricultural modernization in Changji prefecture of Xinjiang was in the middle and upper level of the whole country. The whole prefecture had formed an industrial base with regional characteristics, which had laid a solid foundation for the implementation of the rural revitalization strategy. However, there were still some constraints, such as the low level of agricultural base industrialization, the slow growth rate of per capita disposable income of rural residents, the weak market development ability of agricultural products, and the prominent problems of human settlements. Based on the actual development of Changji prefecture, this study put forward five ways to implement rural revitalization: The income increasing mode of farmers and herdsmen, the industrial integration development mode, the rural talent revitalization mode, the modern rural governance mode, and the rural ecological protection and restoration mode.
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    Realistic dilemma and path choice of rural planting structure adjustment：Taking Hunan province as an example
    FANG Ze-bo, XIA Wei-sheng, ZHU Han-hua, LIU Rui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 13-18.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.003
    Abstract （451）      PDF （1398KB）（598）       Save
    Using data analysis and comparative advantage analysis model, this paper deeply analyzes the agricultural data of Hunan province in recent years, and probes into four practical problems, the desire of farmers to adjust the planting structure of rural planting industry in Hunan province is not strong, the rural planting structure is relatively single, the competitiveness of agricultural products is not strong, and the rural planting environment needs to be improved, in order to provide a path choice for a new round of rural planting structure adjustment. Adjustments should be made in the following four aspects, first, the long-term planning of the government to actively guide farmers to carry out the adjustment of the structure of the planting industry; second, rationally adjust the scale of the crop industry structure, coordinate the relationship between various crops;third, build a good industrial chain of agricultural products, fully realize the value of agricultural products; fourth, to realize the unity of short-term benefit and long-term development of rural planting industry.
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    Research on the current situation,difficulties and countermeasures of agricultural productive service industry under the background of rural revitalization strategy
    YUAN Hao-han, WEI Jun-ying, HE Pu-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 19-21.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.004
    Abstract （499）      PDF （1339KB）（198）       Save
    The development of agricultural productive service industry is the objective requirement of implementing the strategy of rural revitalization. The 19th National Congress of the Communist Party of China put forward “implementing the strategy of Rural Revitalization”. In this context,it expounds the practical significance of studying the agricultural productive service industry to the strategy of rural revitalization,probes into the current situation and difficulties of the development of agricultural productive service industry in China, and puts forward countermeasures to promote the development of agricultural productive service industry in China.
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    Research on the problems and paths of the development of characteristic industries in southern Shaanxi
    DING Xiao-ya, HE Jia-li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 22-26.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.005
    Abstract （463）      PDF （1367KB）（194）       Save
    In order to better develop the characteristic industries in southern Shaanxi, to promote the economic development of southern Shaanxi, and to help farmers increase their incomes, conduct field surveys and analyze the development status of characteristic industries in southern Shaanxi by issuing questionnaires and interviews to farmers in southern Shaanxi. And in the development process, there are problems such as lack of financial support for industrial development, decentralized land management restricts intensive production, low labor quality cannot support industrial development, and unobvious brand advantages. Based on this, it is proposed to implement policy support, increase financial support, and accelerate the progress of land transfer, improve the quality of rural labor force, strengthen talent construction, and create well-known brands in characteristic industries.
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    Research on development of rice-crayfish industry under the background of rural vitalization：A case study of Jianli county
    YU Kai, ZHAO Yong-feng, SONG Qian-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 27-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.006
    Abstract （549）      PDF （1357KB）（789）       Save
    The prosperity of rural industry is an important way to realize rural revitalization. Jianli county of Hubei province vigorously promotes the rice-crayfish co-farming mode through government leading, farmers' spontaneous organization and village level supporting, and explores a new way to effectively promote the rural revitalization and development. This paper analyzes the development situation and main problems of rice-crayfish industry, combining with the development needs of rice and shrimp industrialization, and puts forward the targeted solutions, in order to provide reference for the sustainable development of rice-crayfish industry, and to find a way of rice-crayfish industry development with Jianli county's characteristics.
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    Study on coupling coordination between tourism industry and ecological environment in Xinjiang
    LIU Yi, WANG Hai-yan, PENG Ya-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 31-35.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.007
    Abstract （457）      PDF （1533KB）（226）       Save
    By constructing the index system of tourism industry and ecological environment evaluation in Xinjiang, the coupling and coordinated development of Xinjiang tourism industry and ecological environment are studied by using the coupling coordination model.The results showed that the index of comprehensive evaluation of ecological environment and the safety index of each subsystem in Xinjiang basically showed an upward trend in 2006—2017. The pressure system and response system are the main factors affecting the ecological environment. From 2006 to 2017, the development level of tourism industry in Xinjiang showed a state of fluctuation and rise, and the coupling degree with the ecological environment was at a high level. Accordingly, suggestions are put forward to give full play to the leading role of the government in the ecological governance system, promote the reform of quality and efficiency, and improve the innovation ability of scientific and technological management, we will speed up the close integration and coordination between tourism industry and the ecological environment, and further promote the synchronous, coordinated and steady development of local tourism industry and the ecological environment.
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    Study on the system dynamic mechanism of coordinated development of rural tourism in Shandong province
    BAO Wulan-tuoya, JU Li-yu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 36-43.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.008
    Abstract （423）      PDF （4641KB）（241）       Save
    The healthy and sustainable development of rural tourism is affected by various factors. By constructing the system dynamics model of the coordinated development of rural tourism, the paper analyzes the feedback relationship and interaction mechanism among various elements of the economic subsystem, ecological subsystem and social and cultural subsystem, then identifies the driving mechanism of coordinated development of rural tourism. Rural tourism coordinated development pattern can be divided into five kinds of model, such as resources and environment dependent （N model）, industry oriented （E model）, ecological environment protection （R model）, the social and cultural balance （S model） and the economy, ecology and society coordinated development （ERS model）. The simulation results show that ERS model is the coordinated development of rural tourism system optimal model. Furthermore, some suggestions are put forward, such as giving full play to industrial multiplier effect, improving environmental governance ability, improving community participation awareness and ability, and improving rural tourism policy response system.
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    Analysis of the driving mechanism of rural tourism development from the perspective of industry convergence
    LIU Jian-fang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 44-48.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.009
    Abstract （413）      PDF （1666KB）（527）       Save
    Rural tourism is a new form of deep integration of industries in rural areas,and it's an important way to realize the rural revitalization strategy for our country. From the perspective of industrial composition, this paper summarizes rural tourism as a new form of integration of agricultural tourism, cultural tourism and ecological tourism, analyses the new connotation of rural tourism in terms of tourism space, object and form, and analyses the industrial composition and tourism activity combination of rural tourism. On base of clarifying the connotation and industrial structure of rural tourism, it furtherly explores the driving mechanism of industrial integration from two aspects of “demand side” stimulation and “supply side” reform, and puts forward a series of countermeasures and suggestions to promote the healthy development of rural tourism.
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    Study on tourism development of Shanghekou ancient town in Qinling mountain area
    KOU Meng, HUANG De-jiao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 49-51.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.010
    Abstract （490）      PDF （1447KB）（354）       Save
    The development of ancient town tourism will inject new sources into the rapid growth of tourism economy and become a new direction for tourism development. The ancient town of Shuanghekou, after hundreds of years, has a profound ancient road station culture, rich natural environment and human and cultural tourism resources, which provides a unique advantage for the development of tourism.However, its late development of tourism, remote location and weak infrastructure, it faces many problems and challenges.This study analyzes the status of ancient town tourism, and proposes feasible development suggestions for the future development of Shuanghekou ancient town tourism.
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    Research on poverty alleviation path of rural tourism in Qinba mountain region of Shaanxi province under the background of rural revitalization
    DONG Xiao-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 52-55.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.011
    Abstract （415）      PDF （2770KB）（197）       Save
    Rural tourism is one of the important areas of rural revitalization strategy and the main battlefield for the poor to get rid of poverty. The poverty relief area of Qinba mountain in Shaanxi province is the main location of the poor population in the whole province, with a wide range of poverty and a high incidence of poverty. However, the poverty alleviation area of Qinba mountain also has the advantages of rural tourism development, such as rich kinds of tourism resources, diversified biological resources, profound cultural heritage. This study analyzes the poverty factors and the advantages of rural tourism development in Qinba mountain poverty alleviation area in detail, and plans the poverty alleviation path of rural tourism in Qinba mountain poverty alleviation area according to local conditions, in order to provide suggestions for poverty alleviation in Qinba mountain poverty alleviation area.
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    Research on the path of rural tourism pension integration under the strategy of rural revitalization
    YE Yin-ning
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 56-60.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.012
    Abstract （581）      PDF （1369KB）（477）       Save
    The problem of aging population has become a social topic of general concern. The increase in the purchasing power of the aged population and the change in consumption concepts have given birth to a vigorousold-age consumer market. The rural tourism pension, as a new business form integrating the two major industries of rural tourism and pension, has an important role in alleviating the pressure of city pension, balancing the seasonal differences in rural tourism and the urban-rural economy. The development of rural tourism pension has promotion factors such as rural tourism product supply, pension market demand and policy support, but at the same time there are contradictions in the weak connection between supply and demand.Based on the analysis of the factors that promote the integration and the contradictions, this study puts forward the corresponding countermeasures from the aspects of the overall planning of rural functional areas, the supply-side reform of rural tourism products, and the reform of medical system, so as to promote the integrated development of rural tourism pension industry and realize the rural revitalization.
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    New local expression of rural homestay under the background of integration of culture and tourism：Based on the practice of Changxing county
    WU Lan-gui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 61-63.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.013
    Abstract （410）      PDF （1681KB）（330）       Save
    Based on the empirical observation and research on rural industrial practice in Changxing county in Zhejiang province, this study constructs a multi-functional rural lodging space in which rural residents or returning residents are the optimal operating subjects and a new local expression path based on the three elements of landscape-activities-emotion, in order to seek the close connection between the management of residential accommodation and related industries, to express the local culture in a way more acceptable to the market, so that the villagers can share more of the development of rural tourism dividends, increase the cultural identity and cultural confidence of the villagers.
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    An analysis of the impact of farmers' risk attitude on their farmland transfer behavior under the new normal
    ABUDUREHEMAN Amaguli, SEYTY Heliemu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 64-68.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.014
    Abstract （364）      PDF （1507KB）（152）       Save
    Based on a survey data of 485 farmers in 6 villages and towns in Yizhou district of Hami city, Logit model and Tobit model are used to make regression analysis on farmers' farmland transfer-out behavior. Regression results show that farmers' risk aversion attitude has a significant positive impact on their farmland transfer-out behavior and transfer-out rate. Besides the age of the head of the household and the number of years of education, the controlling variables such as the farmers' information identification ability, the non-agricultural employment rate, the number of surrounding equal groups, the knowledge of the transferring households about the trading objects, and the family's special event experience are also helpful to improve the quality and efficiency of the transferring behavior of farmers' farmland. Due to the emergence of arrears of land rent and installment payment, more farmers are insecure about land transfer transactions, their risk aversion behavior increases, and their willingness to transfer land begins to weaken. Therefore, it is an important way to effectively promote the stable development of farmland transfer to strengthen the formation of agricultural product price market mechanism, standardize the guarantee projects of both sides of farmland transfer, and encourage small farmers with unconcentrated farmland to engage in non-agricultural production.
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    Strategy transformation and implementation path of comprehensive land consolidation in the whole region under the background of rural revitalization
    ZENG Wen-qing, ZHANG Bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 69-73.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.015
    Abstract （663）      PDF （1368KB）（730）       Save
    The connotation of comprehensive land consolidation expounded in the whole region, comparing it with traditional land consolidation in terms of function realization, implementation content and mechanism of action, and the specific practice of comprehensive land consolidation in Chengdu, Shanghai and Zhejiang were summarized. Based on this, the overall strategy of comprehensive land consolidation was puts forward in the whole region, which should highlight industrial support advantages, build livable living space and optimize the ecological network system. At last, the safeguard implementation was puts forward from the guidance of the planning outline, institution supply, resource integration and engineering design, so as to provide the beneficial theory and practice system reference to comprehensive land consolidation in the whole region.
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    Analysis of farmers' willingness to cultivate land fragmentation governance and influencing factors under the background of rural revitalization
    WEI Yong-mei, FANG Shi-ming, CHENG Jia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 74-78.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.016
    Abstract （504）      PDF （1514KB）（711）       Save
    Based on the survey data of farmers in Tuanjie village and other villages in Huining county, Baiyin city, Gansu province, a Logistic regression model is established to study the willingness of farmers to cultivate arable land under the background of rural revitalization, and the factors are explored that affect farmers'participation in the management of arable land. The results show that 55.74% of farmers are willing to carry out land fragmentation governance. The higher the education level of the head of the household, the greater the number of family labor, the higher the level of understanding of the “rural revitalization” policy, the stronger the herd mentality, the more optimistic about the future agricultural mechanized production, the more willing the farmers are to participate in the governance of cultivated land fragmentation; The better the health status, the more fertile the cultivated land and the closer the plot to home, the lower the farmers' willingness to manage the cultivated land.
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    The coupling coordination analysis of Wuhan city population urbanization and land urbanization
    CHENG Shuai, TIAN Jia-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 79-85.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.017
    Abstract （472）      PDF （1550KB）（362）       Save
    Through the construction of 15 indicators system of land urbanization and population urbanization, the coordination between land urbanization and population urbanization in Wuhan city from 2008 to 2017 was analyzed by using the entropy method, coordination index and coupling coordination degree model. The results showed that the development of land urbanization and population urbanization in Wuhan city could be roughly divided into three stages: The first stage was that the index level of both cities was low from 2008 to 2010; The second stage was that the index level of both cities was at a medium level from 2011 to 2014; And the third stage was that the index level of both cities was at a high level from 2015 to 2017, and the coupling degree between them changes from extreme imbalance to high-quality coordination. The process of land urbanization and population urbanization was out of balance in some aspects, but with the adjustment, it tended to coordinate development gradually. On this basis, the reasons for the imbalance between land urbanization and population urbanization in Wuhan city were analyzed. It was pointed out that the relationship between land urbanization and population urbanization was mainly affected by the interaction of external system and internal basis of urban development. Based on this, the policy suggestions for coordinating the synchronous development of land urbanization and population urbanization were put forward.
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    Study on the coupling and coordinating development of urbanization and ecological environment in Wuhan city
    XIE Hui, ZENG Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 86-91.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.018
    Abstract （399）      PDF （1627KB）（95）       Save
    By constructing the urbanization and ecological environment evaluation index system of Wuhan city, based on the data from 2008 to 2017, the entropy method, coefficient of variation method, coupling coordination degree and other quantitative analysis methods are used to explore the comprehensive development level and coupling coordination of urbanization and ecological environment in Wuhan city. The results show that from 2008 to 2017, the level of comprehensive development of urbanization and ecological environment in Wuhan city have showed a rising trend of fluctuation, the level of comprehensive development has been greatly improved, and the degree of coupling coordination has also developed from low and medium coordination to high coordination. However, the comprehensive development level of the ecological environment has lagged behind the comprehensive development level of urbanization since 2010. So it is necessary for Wuhan city to further increase its efforts to protect the ecological environment.
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    Coupling study of urbanization level and farmland security in traditional agricultural areas in north Sichuan based on decoupling theory： A case study of Santai county, Mianyang city
    HOU Lan-gong, MOU Yue-hua, QIAO Biao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 92-96.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.019
    Abstract （347）      PDF （1884KB）（198）       Save
    Based on the decoupling theory, a decoupling model was constructed, the decoupling elastic coefficient of urbanization level and farmland security stress index were calculated in Santai county, and the decoupling state between them were divided. The research showed that the urbanization level of Santai county increased steadily from 2006 to 2018, and the farmland security stress index generally showed a fluctuating decline. The decoupling trend of urbanization level and farmland security stress index in Santai county mainly presented strong negative decoupling, strong decoupling, expansion negative decoupling, and weak negative decouplingfour types, which presented dynamic alternation. From the perspective of decoupling and coupling relationship, the change of decoupling state in the recent 13 years was generally manifested as the transformation from deformity to ideal state, although there was a relatively negative state in some years. The decoupling state presented stage characteristics: From 2007 to 2011, the decoupling state showed a trend of gradual improvement from the unideal state, and the coordination between urbanization level and farmland security showed unreasonable and gradual optimization and adjustment in the early stage. From 2012 to 2018, the overall performance of this phase showed that the decoupling state oscillates and was stable in a reasonable state and a relatively negative state, and the coupling relationship between urbanization level and farmland security was basically stable in a coordinated and relatively coordinated state.
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    Research on poverty reduction effect of tourism industry in Yangtze river economic belt based on PVAR
    YAN Tie-mei, KONG Ling-cheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 97-101.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.020
    Abstract （366）      PDF （1566KB）（248）       Save
    Based on the provincial panel data of the Yangtze river economic belt from 2007 to 2017, and on the basis of panel vector autoregression model, the relationship between tourism industry development and poverty reduction in the Yangtze river economic belt was empirically studied by means of stability test, granger causality test, impulse response and variance decomposition. The results showed that the impact of tourism industry development on the incidence of poverty in the Yangtze river economic belt decreased with the passage of years. The impact of poverty incidence on the development of tourism industry in the Yangtze river economic belt changed from large to small with the year. Under the influence of poverty incidence, the development of tourism industry first increased and then decreased. The impact of the development of tourism industry on the incidence of poverty in the Yangtze river economic belt was greater than that of poverty on the development of tourism industry. Based on this, in order to further enhance the poverty reduction effect of the tourism industry in the Yangtze river economic belt, it is necessary to extend the tourism industry chain and strengthen the poverty alleviation efforts of the tourism industry; Increase investment in regional infrastructure construction to lay a foundation for infrastructure services of the tourism industry; Rational planning and development of tourism resources, while increasing the protection of tourism resources; We will take the road of characteristic tourism development and develop a tourism industry with high characteristic and good service quality.
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    “Re-engineering” at the section level： Research on the organization and operation mechanism of grass-roots poverty alleviation
    WU Xiao-lu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 102-105.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.021
    Abstract （370）      PDF （1465KB）（530）       Save
    A good organizational system and operational mechanism are the cornerstone of overcoming poverty. With the deepening of overcoming poverty and getting more and more attention and discussion on organization operation, there are two opposing viewpoints of movement-based governance and normal governance. By using the methods of in-depth interview, observation and literature research, this paper describes the characteristics of the organization structure of B county, and outlines the whole process of the organization operation, including the optimization of the organization process, the operationalization of the execution process and the institutionalization of supervision. As the base point, the paper puts forward some suggestions for improving the construction of regular organization and the construction of cooperative governance system.
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    Analysis of poverty alleviation ecological migration and land use change in concentrated contiguous deep poverty villages：A case study of poverty alleviation ecological migration area in Weining Yi Hui Miao Autonomous county, Guizhou province
    JIANG Fei-yun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 106-110.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.022
    Abstract （399）      PDF （1474KB）（487）       Save
    Research has been carried out on reclamation, greening and conversion of farmland to forests of agricultural land, homestead and collective construction land retained after relocation of poverty-alleviation ecological migrant areas in Weining Yi Hui Miao Autonomous county, Guizhou province. The results show that the measures of reclamation, greening and returning farmland to forest after relocation can maximize the use of the remaining land, produce economic benefits, and restore the ecological environment of the area, and contribute to the rural revitalization. It provides reference for the government and its related departments to make scientific and rational use of land resources in ecological migrant areas and to build a moderately prosperous society in an all-round way.
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    Research on the characteristics of targeted poverty alleviation in deep poverty areas and suggestions：Based on the statistical data of Taohe town, Langao county, Shaanxi province
    DENG Shu-hong, LYU Jie, YIN Jing-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 111-115.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.023
    Abstract （361）      PDF （1532KB）（302）       Save
    AF multidimensional poverty analysis was carried out on the accurate poverty alleviation statistics data of Taohe town Langao county Shaanxi province in 2017. The results show that the poor population of Taohe town is characterized by multi-dimensional poverty, aging, sickness and low education. From the perspective of poverty alleviation in Taohe town since 2013, poverty alleviation measures have changed from a single to a multidimensional approach, with precise poverty identification and huge investment. At the same time, there are problems such as lack of sustainability in industrial poverty alleviation, low efficiency of poverty alleviation funds, single poverty alleviation indicators, and lack of dynamic information registration. According to the existing problems, corresponding countermeasures and suggestions are provided.
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    An analysis employment poverty alleviation effect on poverty alleviation and its influence factors：Based on the survey date of poverty villages in Baicheng county,southern Xinjiang
    TULAFU Zubaidanmu, MAIMAITI Zulifeiya, ZHAO Yan-mei, MA Hong-zhuo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 116-121.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.024
    Abstract （353）      PDF （1411KB）（136）       Save
    Based on the survey data of poverty detection in Xinjiang and the survey data of deep poverty villages in Baicheng county of four prefectures in southern Xinjiang, the effects of employment poverty alleviation on poverty alleviation and its influencing factors are analyzed. Using the logistic binary regression method, the factors affecting the transfer of employment from individuals, families and villages are made an empirical analysis. Male, educational level, good health and the number of labor force have a positive and significant impact on labor force transfer and employment, while age, education level of household heads and family cultivated land area have a negative impact. Finally, some suggestions are put forward according to the results of empirical analysis.
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    Research on anti-poverty strategies of farmers upstairs from the perspective of targeted poverty alleviation
    XU Jia-jun, LI Ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 122-124.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.025
    Abstract （332）      PDF （1339KB）（188）       Save
    The five types of poverty are described that Chinese farmers face as they upstairs, including livelihood poverty, cultural poverty, relationship poverty, rights poverty and community poverty. The causes of these five types of poverty are analyzed, and the corresponding anti-poverty strategies is put forward according to the perspective of targeted poverty alleviation.
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    Resource endowment, market demand and poverty alleviation in the Dabie mountains industry： Taking the Chinese herbal medicine industry in Qichun county of Hubei province as an example
    CHEN Si-zhong, WU Xue-bing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 125-128.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.026
    Abstract （435）      PDF （1353KB）（289）       Save
    The influence mechanism of resource endowment and market demand on the choice of poverty alleviation industry is analyzed. Taking Qichun county of Hubei province as an example, the poverty alleviation effect of Chinese herbal medicine industry is analyzed in the concentrated contiguous areas of Dabie mountains. It is found that resource endowment can increase the comparative advantage of regional poverty alleviation industries, but it is also easy to fall into the “resource curse” and “poverty trap”. The choice of poverty alleviation industry also needs to consider market demand. The Chinese herbal medicine industry has a good market demand, and the Chinese herbal medicine industry in Qichun county also has a good resource endowment, and has also achieved certain results in industrial poverty alleviation, but there are also lags in infrastructure construction and the promotion of enterprises to farmers, the simplification of sales channels and so on. Finally, it puts forward suggestions on strengthening the infrastructure construction, giving play to the leading role of leading enterprises and brand development.
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    Empirical study on the happiness index of farmers in poverty-stricken counties of Sichuan province
    LUO Kui, ZHOU Li, GUO Cai, FU Xue-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 129-133.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.027
    Abstract （436）      PDF （2012KB）（131）       Save
    To explore the path of improving the happiness index of farmers in poor counties, by field visit and questionnaire survey to collect data, combined with domestic and foreign scientific research method to establish suitable for this area of the evaluation index system, using the entropy weight method and the weighted arithmetic mean method to calculate the happiness index of farmers, the influencing factors of happiness and the regional difference are explored using SPSS 24.0 Pearson correlation analysis. The results show that the happiness index of farmers in poor counties of Sichuan province is at a general level, and the differences within the region are large. Combining with the primary influencing factors of each region, the happiness of farmers should be improved by improving economic income, political construction and social security.
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    Study on the transfer of surplus labor force in agricultural industry of Liaoning province
    KOU Shuang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 134-138.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.028
    Abstract （360）      PDF （1417KB）（179）       Save
    With the adjustment of industrial structure, the surplus labor force of agricultural industry in Liaoning province was gradually transferred to the second industry and the third industry. The transfer of surplus labor force in the context of the adjustment of agricultural industrial structure in Liaoning province was analyzed, the balance of industrial structure and surplus labor force in agricultural industry, and further studies the employment capacity of specific industries in Liaoning province were explained. The results showed that the surplus labor force in agricultural industry is transferring to the secondary industry and the tertiary industry, compared with the second industry and the third industry, the surplus labor force in agricultural industry was transferring to the second industry and the third industry To a large extent, the three industries can promote the employment of surplus labor in the agricultural industry. According to the research and analysis, the corresponding countermeasures were put forward, including vigorously developing the tertiary industry, strengthening the construction of urbanization in rural areas and strengthening the training of agricultural industry skills. The research on the transfer of surplus labor was conducive to the targeted measures to help the surplus labor in the agricultural industry, so as to help them better employment.
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    Analysis on the influencing factors of rural labour transfer in poor areas：A case of Xichuan county
    DANG Hai-tao, LIU Zhi-you
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 139-143.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.029
    Abstract （379）      PDF （1500KB）（334）       Save
    Based on the statistical yearbook data from 2007 to 2019 in Xichuan county, the influencing factors of rural labor force transfer in poor areas were studied. The results showed that the influenc of factor on rural labor transfer in Xichuan county were: the proportion of investment in tertiary industry in infrastructure investment, the per capita net income of rural residents, the level of education （junior middle school and above）, the total power of agricultural machinery, the urbanization rate, the income gap between urban and rural residents, the number of cultivated land per capita and the proportion of production value of primary industry, all play positive role in promoting labor transfer, while the proportion of operating income will inhibit labor transfer.
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    Research on the quality management of PDCA cycle in new rural housing construction
    HUANG Wu-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 144-147.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.030
    Abstract （385）      PDF （4330KB）（157）       Save
    In the process of new rural construction, there are some quality problems in the traditional housing construction mode. The application of PDCA cycle theory in the construction quality management of new rural construction would help to ameliorate the shortcomings of the traditional construction quality management in rural areas, improve the quality standard of construction projects in new rural construction, reduce the quality and safety accidents in rural construction projects, guide the healthy development of rural construction, and accelerate the construction pace of new socialist countryside.
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    Research on Shaanxi green symbiosis development model based on “Two Mountains” theory
    YANG Ying-juan, ZHOU Xiao-ting, GUO Feng-juan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 148-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.031
    Abstract （424）      PDF （1391KB）（154）       Save
    Combined with the “Two Mountains” theory and Lotka-Volterra symbiosis model, the evaluation model of green development mode was constructed. α is the competitive inhibition coefficient of “economic mountain” to “ecological mountain”, β is the competitive inhibition coefficient of “ecological mountain” to “economic mountain”, when α>β is gray green development mode, when α<β is light green development mode, when α=β is deep green development mode. Through Analytic hierarchy process（AHP） to calculate the weight of each index, combined with the green development model of Southern Shaanxi, it was concluded that Xi'an, Tongchuan, Hanzhong and Shangluo were gray green development model; Baoji, Xianyang, Weinan, Yan'an, Yulin and Ankang were light green development model; no city was deep green development model.
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    The development of red cultural resources and the implementation of the strategy of rural revitalization：The traditional villages in the old revolutionary base area of Guanzhong
    CAO Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 152-154.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.032
    Abstract （463）      PDF （1337KB）（289）       Save
    Based on the investigation of the development of traditional village red cultural resources and the implementation of rural revitalization strategy in the old revolutionary area of Guanzhong, the problems existing in the development of traditional village red cultural resources were analyzed and the implementation of rural revitalization strategy in the old revolutionary area of Guanzhong were analyzed, and the ideas and suggestions for further promoting the development of traditional village red cultural resources and the implementation of rural revitalization strategy in the old revolutionary area of Guanzhong were put forward. It was of great significance to solve the problem of rural surplus labor force, improve the rural employment population, promote the transformation of rural industry and increase the income of farmers.
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    Analysis of the construction of rural Xiangxian culture under the background of rural revitalization：Taking Ji'an city as an example
    ZHU Yan-lin, XIE Qian-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 155-159.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.033
    Abstract （484）      PDF （1470KB）（794）       Save
    Xiangxian culture is a traditional culture with strong local characteristics and unique historical role that has been bred and developed in the long historical process of China's traditional agricultural society. During the historical period, the township culture has played an irreplaceable role in developing and prospering the rural economy, maintaining the normal operation of the rural social order, leading and nurturing rural customs, and so on. In the current vivid practice of implementing the rural revitalization strategy, on the basis of inheriting and promoting the excellent traditional Xiangxian culture, we must vigorously cultivate and develop the new Xiangxian culture with the characteristics of the new era, in order to smoothly promote and realize the goals and tasks of the rural revitalization strategy and gather a wide range of resources and strengths in talents, culture, capital, technology and other aspects.
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    Research on the governance of rural unlicensed old-age care center from the perspective of principal-agent
    ZUO Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 160-163.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.034
    Abstract （345）      PDF （1459KB）（676）       Save
    In view of the current irregularities in the construction and operation of elderly care service institutions in rural areas, based on the deep analysis of its causes and from the perspective of principal-agent, this study designed three operation models for rural unlicensed old-age care center with potential development, which included regular chain mini-nursing homes,old-age service stations, and family nursing beds. This study put forward the countermeasures from four aspects: policy guidance, financial support,team building and risk prevention and control.
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    Mechanism obstacles and countermeasures for the development of big data smart senior service
    SHANG Zhe
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 164-169.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.035
    Abstract （469）      PDF （1513KB）（698）       Save
    The introduction of big data smart senior service system is an effective measure to alleviate the supply pressure of senior care service brought by aging and aging, and can also solve the imbalance and mismatch between the supply and demand of home care service to a certain extent. Based on the analysis of the match of big data smart senior and senior service demand,this study analyzed the institutional obstacles of big data smart senior service development, such as the lack of policy guidance network, the lag of standardization construction of big data smart senior service, the lack of closed supply and demand chain. From the perspective of policy guidance and effective supply, information integration and industrial chain closure, personalized configuration and accurate service, this study put forward countermeasures and suggestions so as to promote the in-depth development of big data smart senior service system.
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    Study on the difference of per capita disposable income of urban residents in north China
    SHI Xue-qiao, ZHANG Ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 170-173.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.036
    Abstract （424）      PDF （1482KB）（102）       Save
    Taking five provinces （cities, autonomous region） in north China as the research object, select the nation's 2013—2017 urban residents per capita disposable income source, using the entropy weight method to determine the influence key attribute index, per capita disposable income of urban residents in north China in 1998—2017 of wage income and per capita disposable income as the primary data, by using the theory of control chart painted this set of data to fluctuations and controllable. Results showed that in addition to the Hebei province, the other four provinces （cities, autonomous region） salary income of urban residents' per capita disposable income in the ratio of the first increased then decreased, and the residents' wage income ratio almost simultaneous increase and decrease of per capita disposable income, but on the whole north China the ratio of salary income of urban residents' per capita disposable income in the steady state controlled. in order to reduce the gap between rich and poor residents, residents can be encouraged to increase their property income to increase their disposable income so as to achieve common prosperity.
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    Empirical study on green finance and rural development based on grey relation analysis
    HAN Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 174-178.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.037
    Abstract （374）      PDF （1506KB）（220）       Save
    Agriculture and rural areas from production to life cannot without green, green is the basic color of “agriculture, rural areas and farmers”, green development is the only way to realize rural revitalization. To achieve the strategic goal of strong agriculture, beautiful rural areas, farmers rich must take the road of green development. Green finance and rural development had natural green attributes and requirements. Coordinated development of the two can promote the early realization of rural revitalization. This study adopted the grey correlation analysis method to empirically study the correlation degree between green finance and rural development, and reached the conclusion that green finance and rural development had a high correlation degree.
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    Research on the optimization of financing channels of agricultural processing enterprises in the construction of New Countryside
    GAO Xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 179-182.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.038
    Abstract （429）      PDF （1378KB）（290）       Save
    As a basic industry in China, agriculture played an important role in ensuring and improving people's livelihood. In this study, the financing need and current situation of agricultural processing enterprises were analyzed in depth, pointing out that the development bottleneck of agricultural processing enterprises in the current development process was financing difficulties. In view of this problem, this study took X agricultural processing enterprise as an example, discussed the existing problems of its current financing channel selection, and put forward corresponding optimization suggestions.
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    The role function and paths of new rural sages participating in rural governance：Based on the perspective of the combination of autonomy, rule of law and rule of virtue
    LIU Li-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 183-187.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.039
    Abstract （429）      PDF （1324KB）（163）       Save
    In the process of modernization transformation, contemporary rural governance is facing multiple difficulties. Under this background, the return of new rural sages to rural governance had profound historical basis and objective realistic basis. This study discussed the historical evolution of the participation of the rural sages in rural governance and the necessity of the return of the new rural sages to rural governance under the background of the dilemma of contemporary rural governance, revealed the important role and function of the new rural sages in the new era of rural governance system with the combination of autonomy, rule of law and rule of virtue, and put forward the specific paths of promoting the participation of the new rural sages in rural governance from the perspective of “three governance combination”.
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    The dilemma of rural governance involution and its correction：From the perspective of new rural sages comeback
    DENG Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 188-191.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.040
    Abstract （459）      PDF （1351KB）（185）       Save
    Rural governance is an important part of China's national governance, and also the key to the promote the smooth implementation of the rural revitalization strategy. Since the reform and opening up for more than 40 years, with the acceleration of new industrialization and urbanization process, rural governance was facing many difficulties, showing a tendency of involution which was mainly reflected in the separation of supply and demand of basic-level public services, the weakness of rural endogenous foundation, and the prominent administrative trend of village level organizations. Under the background of rural revitalization strategy,as a new expression of rural sages in the context of modernization, new rural sages gradually became one of the important subjects of rural governance. With its unique appeal, new rural sages played an irreplaceable role in innovating the supply mode of rural public services, strengthening the endogenous basis of rural, and assisting villagers' autonomy, so as to provide useful reference for rural governance to get out of the dilemma of involution and realize the modernization of rural governance system and governance capacity.
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    Integration of village and community in the perspective of rural revitalization
    LI Lu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 192-195.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.041
    Abstract （437）      PDF （1350KB）（221）       Save
    The integration of village and community system is conducive to boosting the construction of rural revitalization governance system, making up for the weakness of governance ability. By sorting out the significance of the integration of village and community in rural revitalization, this study analyzed the possible risks in practice, and put forward reasonable means to avoid various risks, so as to provide support for accurately grasping the integration of village and community and promoting rural revitalization with high quality. Finally, it discussed how to deepen the integration of village and community in the process of rural revitalization.
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    Exploration the legalization of basic-level governance in ethnic areas
    LI Yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (4): 196-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.04.042
    Abstract （387）      PDF （1484KB）（282）       Save
    Since the strategy of rule of law was put forward, promoting the modernization and legalization of governance had become the main task and development goal of China. At present, there were many difficulties in the legalization of basic-level governance in ethnic areas, such as the absence of governance mechanism, conservative governance concept, weak awareness of the rule of law, improper governance measures. From the aspects of perfecting the governance mechanism, changing the governance concept, establishing the awareness of the rule of law, optimizing the governance resources, this study put forward the paths of legalization of basic-level governance in ethnic areas, in order to provide guidance and reference for the basic-level governance in ethnic areas.
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    Research progress on quantitative assessment of agricultural adaptation effect under the background of climate change
    CHEN Si-ning, GUO Jun, ZHAO Yan-xia, LI Xing-yang, CHEN Yue-hao, GUO Yu-di
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 5-12.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.001
    Abstract （649）      PDF （1545KB）（261）       Save
    The quantitative evaluation of the effect of agricultural adaptation will be helpful to the formulation and decision-making of agricultural adaptation strategy and planning. This paper summarized the research progress of quantitative assessment of agricultural adaptation effect under the background of climate change by literature review and comparative analysis, and tried to find solutions to the related problems from methods, models and other aspects. The results show that the existing quantitative evaluation of agricultural adaptation to climate change mainly includes two aspects. ①From the perspective of crop growth and development, crop model is often used to evaluate the changes of crop growth and development parameters such as crop growth and development process and yield before and after adaptation; ② from the perspective of economic benefits, it mainly focuses on the analysis of cost input and economic output of agricultural adaptation strategies. It was suggested that we should strengthen the quantitative evaluation research on the effect of agricultural adaptation adjustment under the future climate change scenario, establish the targeted quantitative evaluation methods and models of agricultural adaptation; according to the characteristics of complementary advantages of various economic analysis methods, use a variety of economic analysis methods to carry out the quantitative evaluation research on agricultural adaptation strategies; combine uncertainty analysis to quantitatively evaluate agricultural adaptation adjustment effect.
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    The role of aquatic plants in lakes ecological restoration
    ZHU Yuan-qin, YUAN Long-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 13-17.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.002
    Abstract （632）      PDF （1489KB）（372）       Save
    Aquatic plants play an important role in lake restoration due to their low cost, low energy consumption, low environmental disturbance and ecological appreciation. The causes and forms of lake ecosystem degradation were analyzed. The mechanisms and effects of four different types of aquatic plants, including allelopathy, absorption of nutrients such as nitrogen and phosphorus, adsorption of sediment and photosynthesis, were expounded. The current research status at home and abroad was introduced, and the existing research methods and problems were discussed and some suggestions were put forward. The future research direction was prospected.
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    The construction of millet growth model based on effective accumulated temperature
    YANG Fan, ZHANG Wu-ping, ZHENG Xiao-nan, LIU Yu-ping, LIANG Liang, LI Fu-zhong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 18-20.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.003
    Abstract （445）      PDF （1664KB）（353）       Save
    Three millet （Setaria italica Beauv.） plants with the same growth potential of listed plants were selected at each stage of millet growth for the measurement of morphological and biomass parameters of each organ. Based on effective accumulated temperature and Logistic model, the growth model of millet plant height, dry matter mass of overground and leaf area varying with effective accumulated temperature was constructed. The results showed that when the effective accumulated temperature was 700~900 ℃, the millet was in the jointing to booting stage, and the growth rate plant height was the fastest; when the effective accumulated temperature was 1 100~1 200 ℃, the millet was in the heading to filling stage, and the growth rate dry matter weight of the ground was the fastest. When the effective accumulated temperature was 600~800 ℃, the millet was in the jointing to heading stage, and the leaf area growth rate was the fastest. When the effective accumulated temperature was 1 000~1 100 ℃, the value of the millet leaf area reached the maximum. R2 values of three modes were 0.989 1, 0.963 6, 0.964 9, the test showed that the models had higher accuracy and better significance. The establishment of a millet growth model based on the effective accumulated temperature can better predict the growth changes of millet height, dry matter above the ground, and leaf area.
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    Effects of different seedling killing methods on yield and storage tolerance of Jizhangshu No.8
    LI Lin, CHU Jia-hao, LI Chen-yang, GUO Xiao-min, GONG Xue-chen, YIN Jiang, QI Li-pan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 21-24.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.004
    Abstract （620）      PDF （1505KB）（209）       Save
    Jizhangshu No.8 is the main cultivated fresh food potato （Solanum tuberosum L.） variety for a seasonin the northern , and it is popular with potato farmers because of its high yield and stress resistance. But its growth period is long, the plant is thick green when harvest, potato navel is crisp and tender, making it often cause pathogen infection, cause stock rotten potato to be serious. In order to improve the storage resistance of Jizhangshu No.8 and increase its economic benefit, the effects of mechanical seedling killing and three concentrations of Lishougu seeding killing agent on the yield and storage resistance of Jizhangshu No.8 were studied in the Bashang area of Zhangjiakou city in Hebei peovince without seedling killing as the control. The results showed that low concentration （3.0 g/L） Lishougu seeding killing agent had the best economic benefit and increased 1 409 yuan（RMB）/hm2, field yield of this treatment was 40 530 kg/hm2,0.7% less than that of control （40 800 kg/hm2）; The rate of rotten potato was 2.5%, which was significantly lower than that of control （4.7%）, and the weight of good potato out of storage was 39 517 kg/hm2, which increased 1.6% compared with that of control （38 882 kg/hm2）;the starch content was 13.99%, decreased by 1.00 percent, and dry matter content was 19.45%, decreased by 1.31 percent.
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    Effects of different nitrogen fertilizer levels on tillering dynamics and yield formation of Zhenzhunuo
    HU Yang, DUAN Bin, HE Shi-jie, FANG Ling, WANG Qing-lin, LI Hui-long, SONG Xiao-hua, CHEN Long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 25-28.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.005
    Abstract （738）      PDF （1892KB）（154）       Save
    By studying of the tillering dynamics and yield composition changes of Zhenzhunuo under different nitrogen fertilizer levels, the effects of nitrogen fertilizer on tiller panicle formation, yield and yield composition factors of Zhenzhunuo were explored,and the economic benefits under different nitrogen levels was determined, to optimizethe fertilization mode, and provide references for the efficient application of this variety in production. The results showed that the tillering number of Zhenzhunuo increased with the increase of nitrogen fertilizer level. The range of tiller panicles was 60.73% to 78.54% under different treatments. Too much or too little nitrogen fertilizer will lead to the delay of start heading stage and full panicle stage, and the mature stage was the latest at the level of 202.5 kg/hm2 nitrogen. Among the yield components of each treatment, the effective panicle increased with the increase of nitrogen fertilizer, the seed setting rate decreased with the increase of nitrogen fertilizer, and the 1000-grain weight increased first and then decreased with the increase of nitrogen fertilizer. The 1000-grain weight was the highest at the level of 157.5 kg/hm2 nitrogen. The yield increased first and then decreased with the increase of nitrogen fertilizer, and the yield was the highest at the nitrogen applicaiton level of 157.5 kg/hm2. The agronomic efficiency of nitrogen fertilizer first increased with the increase of nitrogen fertilizer, and then began to decline after the nitrogen application level of 180.0 kg/hm2. According to the fitting equation, the economic benefit reached the maximum when nitrogen was used at 96.88 kg/hm2. In conclusion, under the appropriate conditions of P and K fertilizer, the yield structure of this variety is more reasonable, the yield is the highest, the group quality is higher, and the comprehensive benefit is better when the nitrogen fertilizer（N） use is 157.5 kg/hm2.
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    Analysis on the dynamic changes of LUCC in Shaanxi province from 2010 to 2018
    SU Ming-wei, ZHANG Wei-feng, DU Juan, LI Ming-jie, DUAN Lian, LIANG Yong-kang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 29-34.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.006
    Abstract （549）      PDF （1507KB）（294）       Save
    Based on the data of land use survey status in Shaanxi province from 2010 to 2018, land use dynamic degree model, land use change range, single and comprehensive land use dynamic degree, comprehensive land use degree index, land use structure diversity index, superiority index and the uniformity index model were used to quantitatively analyze the dynamic changes of land use in Shaanxi province. The results showed that the area of arable land, grassland and unused land were year by year decreased, the transform of unused land was obviously; Garden land, forest land, urban village and industrial and mining land, transportation industry land, water area and water conservancy construction land all had different rates of increase, the forest land increased most prominent; The comprehensive index of land use degree in 2018 was 232.25, and the degree of land use was relatively high; the annual change rate of land use in 9a was 0.76%, and the change in land use was relatively slow.
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    Seasonal variation and climatic factors of reference crop evapotranspiration in Henan province
    WANG Qi-bo, ZHANG Chen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 35-38.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.007
    Abstract （410）      PDF （2519KB）（250）       Save
    Based on the daily data of 99 meteorological stations in Henan province from 1965 to 2018, the daily reference crop evapotranspiration was calculated by using of FAO Penman-Monteith equation. The spatiotemporal variation of reference crop evapotranspiration were analyzed by using trend analysis, and its climatic factors were analyzed by correlation analysis and partial correlation analysis. The results showed that the seasonal reference crop evapotranspiration was significant decreasing, and the decreased order of absolute value of climate tendency rate was summer, autumn, winter, spring. The distribution of reference crop evapotranspiration in spring was latitudinal, while that in summer and autumn were meridional. The decrease of wind speed and sunshine hours relative humidity were the main reason for the decrease of reference crop evapotranspiration in Henan province.
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    Spatial and temporal pollution characteristics and health risk assessment of heavy metals in surface dust on campus in Lanzhou city
    LI Chun-yan, HU Meng-jun, WANG Jia, ZHANG Ya-yun, LI Na-na
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 39-47.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.008
    Abstract （670）      PDF （7026KB）（132）       Save
    The heavy metal content, temporal and spatial pollution characteristics and health risk levels of surface dust on some primary and secondary schools in the main urban area of Lanzhou city was studied, and the relationship between the monthly average heavy metal content of dust and the Nemeiro comprehensive pollution index and the climate environment was explored. The results showed that the seasonal average content of Cr, Ni, Cu, Zn and Pb in the campus dust in the main urban area of Lanzhou city exceeded the soil background value of Lanzhou city, and the overall performance was higher in winter than in summer. High values areas of Cr and Ni were concentrated in the west and the solid area was distributed in clusters. The areas with high Pb content were concentrated in the middle of the Chengguan area. The high values of Cu and Zn were unevenly distributed in the main urban area. Cu, Zn, and Pb were seriously polluted, and heavy pollution occured mostly in autumn and winter. The level of comprehensive pollution was severe in winter, low in spring and summer, and unstable in autumn. The non-carcinogenic risk of different exposure routes of heavy metals to juvenile from big to small was hand-oral exposure, skin exposure, respiratory exposure, and the non-carcinogenic risk was in the order of Zn, Pb, Ni, Cr, Cu. Carcinogenic heavy metals Cr and Ni had low carcinogenic risks. The monthly average precipitation, wind level and southeast wind had significant correlations with the heavy metal content of dust and the Nemeiro comprehensive pollution index. The heavy metal pollution on campus mainly came from outside the school.
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    Research on the relationship between heat island effect and vegetation based on Landsat data：Taking Kaifeng city as an example
    XU Chang, GAO Rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 48-52.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.009
    Abstract （481）      PDF （2473KB）（212）       Save
    With the continuous development of economy, the urban heat island phenomenon is becoming more and more serious, which not only restricts the green and healthy development of the social economy, but also harms the human health. Based on the data of Landsat5 and Landsat8, the spatial distribution of thermal environment in Kaifeng city was analyzed by using the method of atmospheric correction, and the vegetation cover in Kaifeng city was analyzed, in order to provide reference for green health planning and construction and mitigation of the heat island effect of Kaifeng city. The results showed that the urban heat island effect in Kaifeng city was obvious, and the high temperature mainly concentrated in the urban area of Kaifeng and spreaded to Xiangfu district, Weishi county, Tongxu county, Qi county and Lankao county. The areas of annual average temperature and high temperature zone in Kaifeng were on an upward trend. The areas of middle and sub-high temperature zones in Kaifeng increased significantly, the areas of sub-low temperature zones decreased significantly, and the increase speed of air temperature in urban area was faster than that in suburban area, which provided heat basis for the formation of heat island. There was a negative correlation between land surface temperature and vegetation cover, therefore, in the process of Kaifeng’s economic construction, we should make rational planning for urban land use, strengthen the planning for urban green space, increase the coverage of urban green space, and choose permeable pavement to alleviate Kaifeng’s heat island effect.
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    Temporal and spatial distribution of vegetation in Lyuliang mountain and the influence of topographical differences
    SONG Xiao-jing, ZHOU Shu-qin, JING Yao-dong, WANG Bei-bei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 53-58.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.010
    Abstract （728）      PDF （5276KB）（541）       Save
    Based on the MODIS NDVI data from 2000 to 2018, the average method and trend analysis method were used to reveal the characteristics of temporal and spatial changes of vegetation in Lyuliang mountain, and to explore the impact of topographical factors on vegetation changes. The results showed that the average annual normalized difference vegetation index（NDVI） of Lyuliang mountain showed an overall increasing trend from 2000 to 2018. The vegetation coverage of 99.77% of the whole area was stable and tended to be well transformed. Among them, the NDVI value of the middle section of the Lyuliang mountain was highest, and the NDVI value of western and northwestern Shanxi was lowest. Terrain differences affect the spatial distribution of NDVI to varying degrees. The elevation of 1 250~2 400 m, the NDVI increased with the elevation, and the elevation more than 2 400 m, the NDVI decreased with the elevation; The slope was bounded by 35°, When the slope was less than 35°, the mean value of NDVI increased with the increase of slope; The NDVI of shade slopes was higher than other slope directions and the difference was obvious, and the NDVI value of flat land was the smallest.
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    Spatial correlation characteristics of cultivated land fragmentation and cultivated land ecosystem service value in Zhejiang province,China
    HE Wang, PAN Run-qiu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 59-67.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.011
    Abstract （571）      PDF （21688KB）（73）       Save
    ：cultivated land fragmentation and its average ecosystem service value in Zhejiang province were analyzed. Then the correlation between cultivated land fragmentation and its average cultivated land ecosystem service value was calculated by utilizing bivariate spatial autocorrelation method. The results showed that there was a significant negative spatial correlation between farmland fragmentation and ecosystem service value in Zhejiang province. During the study period, the area with high increase rate of cultivated land fragmentation were distributed in the north Zhejiang plain, the southeast coastal plain and the Jinqu basin, while the low value areas were scattered in the mountainous and hilly areas. And the high value areas of average cultivated land ecosystem service value（AESV） reduction were concentrated in north Zhejiang plain, indicating that the more serious the cultivated land fragmentation, the greater the reduction in cultivated land ecosystem services value.
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    Landscape ecological restoration strategy of Zhaojiaqu in Qi county,Henan province
    ZHANG Yan-dong, CHEN Lu, WU Chao, HAN Yi, LIU Bao-guo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 68-73.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.012
    Abstract （594）      PDF （7773KB）（168）       Save
    With the acceleration of urbanization, the healthy development of river ecology has attracted people’s attention. The gradual disappearance of river beaches, the shrinking of natural basins, river water pollution, and the reduction of species diversity are the main problems facing urban rivers today. Based on the analysis of the current situation of Zhaojiaqu, the article puts forward three strategies of river bed naturalization, non-point source pollution control, and river habitat construction. Through the application of river ecological restoration technology, the river can be restored to a near-natural state, and realize the trinity comprehensive construction goal of water environment, water landscape, and water ecology.
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    Analysis on spatial distribution characteristics of traditional villages and the influencing factors in Shanxi province
    FENG Jia, FENG Wen-yong, SHI Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 74-79.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.013
    Abstract （488）      PDF （3365KB）（349）       Save
    Taking Shanxi province as the research area, using GIS spatial analysis method and mathematical analysis method, the spatial distribution characteristics and influencing factors of traditional villages in Shanxi province are explored from the perspective of macro level and micro level. The results show that, the spatial distribution of traditional villages in Shanxi province tends to be agglomerative; The spatial distribution of traditional villages presents a spatial pattern of “one belt and three areas”, which are Taihang-Wangwushan polar core belt, middle reaches of Fenhe River cluster area, Taohe-Songxi River cluster area and Yellow River-Qiushui River-Sanchuan River cluster area; The spatial correlation of traditional villages is significant, showing certain agglomeration characteristics and hot spots distribution; The spatial distribution of traditional villages is mainly affected by topography, hydrology and traffic, showing the distribution characteristics of lowland, close to the water and along the road. At the same time, it is affected by social economy and policy, but the effect of population is not significant.
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    Spatial evaluation of ecological sensitivity of Xiluodu town based on AHP-GIS
    HAN Li, ZHOU Bing-jiang, MING Liang, MA Chang-le, LUO Qing, CAO Shi-rui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 80-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.014
    Abstract （506）      PDF （4262KB）（428）       Save
    Xiluodu town was taken as the research object, combining with the related research status, field survey and vector data at home and abroad, seven evaluation indexes were selected as the evaluation mechanism, including altitude, plant canopy density, soil erosion, land type, slope, slope direction and rocky desertification, and the weight of evaluation indexes was analyzed by AHP method, and finally the spatial analysis method of ArcGIS was used for overlay analysis. The results showed that the ecological sensitivity of Xiluodu town was in the form of ladder, increasing from north to south. the south, southeast and southwest of Xiluodu town are of medium high sensitivity, and the area along Jinsha River in the north was mostly of light sensitivity. the proportion of light sensitive area, medium sensitive area and high sensitive area was 99.92%, indicating that the overall ecological sensitivity of Xiluodu town was relatively high. The main factors of ecological sensitivity were rocky desertification, canopy density, soil erosion and altitude. The research results can provide theoretical exploration and suggestions for the ecological environment protection and the establishment of ecological restoration scheme in the surrounding towns of Jinsha River Basin.
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    Effect of illuminance on photosynthetic efficiency and main flavonoids content in Taraxacum mongolicum
    XU Yi-shen, XIE Xiao-yi, GUO Yang-dong, ZHANG Xi-chun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 85-88.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.015
    Abstract （455）      PDF （1890KB）（364）       Save
    Aiming to investigate the relationship among illuminance and photosynthetic efficiency and accumulation of five main flavonoids in Taraxacum mongolicum Hand.-Mazz., five different light intensities treatments were applied including light transmittance 100.0%（average illuminance 15 882 lx）, 82.8%（average illuminance 13 116 lx）, 60.3%（average illuminance 9 545 lx）, 37.9%（average illuminance 6 003 lx） and 14.5%（average illuminance 2 303 lx） during the growth of Taraxacum mongolicum, then the photosynthetic parameters and the content of five main flavonoids were determined by plant photosynthesis analyzer and high performance liquid chromatography（HPLC）. The results showed that, the highest accumulation was observed in five main flavonoids under the light transmittance 60.3% among the five light treatments, which were Rutin 346.85 μg/g, Quercetin 502.75 μg/g, Luteolin 299.53 μg/g, Kaempferol 241.90 μg/g and Isorhamnetin 273.35 μg/g, and the photosynthetic efficiency in control group（100% light transmittance） was the best.There was the highest photosynthetic efficiency under full light conditions,and the light transmittance about 60.3% was most conducive to the accumulation of flavonoids during the cultivation of Taraxacum mongolicum, and the light transmittance below 60.3% is adverse to its growth.
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    Study on morphology and histology of Lamiophlomis rotata （Benth.） Kudo of different growth years
    BAO Xin, LIU Qin, GU Rui, ZHONG Shi-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 89-94.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.016
    Abstract （457）      PDF （7827KB）（189）       Save
    In order to find the basis for the identification of different growth years, provide reference for the study of population structure of Lamiophlomis rotata （Benth.） Kudo, the experiment was conducted to observe and compare the appearance and tissue structure of Lamiophlomis rotata （Benth.） Kudo for 1~3 years cultivated plants and different size levels wild plants. The root parameters such as root length, surface area and volume were obtained by root scanner, the aboveground and underground parts were observed by microscopic identification. The results show that, 1-year-old root have no branches, 2-year-old roots have 0~2 branches, 3-year-old roots have 2~5 branches, and occasionally withered heart. There are 1 midvein vascular bundle in 1-year-old leaves, 1~2 vascular bundles in 2-year-old leaves, and 1~3 vascular bundles in 3-year-old leaves, which are arranged in the shape of “U”. There is no thick horn tissue within the upper epidermis in the midrib of 1-year-old leaves, 1~2 rows of thick horn cells are occasionally seen below the upper epidermis of the midrib of 2-year-old leaves, and 2~3 rows of thick horn cells are found in the upper epidermis of 3-year-old leaves. The arrangement of xylem ducts in root cross section is different, 1-year-old and 2-year-old root ducts are scattered in single or several bundles, in a flat layer arrangement, 1-year-old ducts are compact, 2-year-old vessels are sparse, and dozens of 3-year-old ducts are cut into bundles and arranged continuously into rings parallel to the cambium. The small, medium and large grade plants in the field samples showed a similar pattern to that of 1~3-year-old cultivation. There are some differences in appearance, tissue structure and component content among different growth years, which can provide reference for the identification of growth years.
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    Analysis on population status of captive grey crowned crane in China
    ZHU Yan, YANG Yu-zhao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 95-99.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.017
    Abstract （545）      PDF （2427KB）（277）       Save
    Based on the data of captive grey crowned crane（Balaerica regulorum） population in China in 2018, with SPARKS v1.66 and PMx v1.2 the demographic and genetic analyses of population were conducted. The results of pedigree analysis showed that, as of December 31, 2018, there were 332 captive grey crowned crane maintained at 41 institutes in China. There were 16 founders whose numbers of descendants and contribution values were uneven. Although the genetic diversity of the population was 85.97%, the development trend over past 30 years indicated the population genetic diversity would decline continuously. The models predicated that after 100 years the number of population wouldn,t reduce a lot but the genetic diversity would decline to 78.80%. Aiming to increase the number of captive gray crowned crane population and promote the healthy development of the population, some suggestions are put forward, such as improving the individual mark; Conducting sex identification for individual of unknown sex; Increasing breeding opportunities of potential foundersby encouraging inter-institutional cooperation; Improving environmental conditions; Avoiding possibility of hybrid offspring.
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    Identification and comparation study on morphological characteristics of Apis cerana cerana in Pengshui,Chongqing
    LYU Yan, ZHOU Jun, HU Chong, SHI Peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 100-102.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.018
    Abstract （408）      PDF （1466KB）（172）       Save
    In this study, sample of bees were selected from the main habitat area of the Apis cerana cerana of 18 apiaries in Pengshui county of Chongqing. Six major morphological indexes of five worker honeybees, such as proboscis length,wing length and so on, were measured by each colony. The data of bee morphological indicators in Pengshui were compared with those data reported in 17 areas including Hubei and Jiangxi. The results showed that the average wing length, wing width and T3+T4 tergum length of the bees in Pengshui were at the middle-upper level, suggesting that their collecting ability and nectar storage capacity had certain advantages.These results can provide morphological data for the investigation and protection of the local honeybee genetic resources.
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    Study on technology extracting rosolic acid of Rosa roxbunghii Tratt. pomace
    LIU Ying-xiao, YUAN Xiao-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 103-107.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.019
    Abstract （383）      PDF （4791KB）（219）       Save
    The pomace of Rosa roxburghii Tratt. was used as raw material,based on single factor experiments, the optimal extraction conditions for rosolic acid of Rosa roxbunghii Tratt. pomace by alkali extraction and acid precipitation method were optimized by Box-Behnken design and response surface methodology. The results showed that alkaline solution pH 12, extraction time 120 min, liquid-to-material ratio of 17∶1 （mL∶g）, extraction temperature 73 ℃, extraction frequency 2, under this optimal extraction,the maximum yield of rosolic acid was 0.257% in accordance with the predicted value,indicating that extract parameters had good accuracy and reliability. The acid precipitation condition pH is 2, after extracting twice with 1.0 volume of ethyl acetate, the maximum yield of rosolic acid was 3.77%. This method is simple, efficient, energy saving and environmentally friendly, provide a theoretical basis for extracting rosolic acid from the Rosa roxbunghii Tratt. pomace.
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    Rapid analysis of free fatty acids in tobacco leaves by UPC2/MS
    YU Shi-tao, TAO Yong-feng, YAO Jian-wu, WEI Gang, GAO Song, YANG Xin, TANG Xiang-bing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 108-112.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.020
    Abstract （474）      PDF （1947KB）（143）       Save
    In order to quickly detect and analyze the content of free fatty acids in tobacco leaves,Ultraperformance convergence chromatography mass spectrometry（UPC2/MS） was established for the rapid analysis of 5 kinds of fatty acids, palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid, in 8 kinds of tobacco leaves, and identification of 32 kinds of free fatty acids. The results showed that HSS C18 chromatographic column （SB 1.8 μm, 2.1 mm×150 mm） was used as the analytical column, CO2 and 0.1% formic acid solution of methanol was used as the mobile phase to gradient elution by ACQUITY UPC2 chromatographic system and Xevo TQS mass spectrometer. The 5 kinds of fatty acids had a good linear relationship within the range of 2.2~72.2 ng/mL （r>0.999）; the detection limit （S/N≥3） was 0.06~0.13 ng/mL; the quantitative limit （S/N≥10） was 0.19~0.41 ng/mL; the relative standard deviation （RSD） of precision was 5.2%~8.0%; the relative standard deviation （RSD） of stability was 4.3%~7.5%; the relative standard deviation （RSD） of repeatability test was 3.0%~6.7%; the average recovery rate was 95.8%~97.2% at different addition levels. The contents of palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid in 8 tobacco leaves ranged from 0.12 mg/g to 1.21 mg/g. The method is rapid, sensitive, selective and simple in sample pretreatment without derivation. It is applicable for the determination of free fatty acids in tobacco leaves.
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    Analysis on volatile components of wild cherry extract and its application
    ZHANG Xin-min, WU Jing-jing, ZHANG Jun-song, HANG Shan-song
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 113-114.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.021
    Abstract （463）      PDF （1578KB）（116）       Save
    The volatile components of wild cherry extract were analyzed by GC-MS. A total amount of 27 volatile components were identified from wild cherry extract, including 3,4,5-trimethoxy-benzoic acid, scopoletin, benzoic acid, 3,4,5-trimethoxybenzyl alcohol, accounting for 33.21%, 23.77%, 12.01% and 10.45% respectively, which constituted the main body flavor of wild cherry extract. The wild cherry extract can mellow the tobacco fragrance and improve the quality of tobacco products effectively.
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    Determination of total iridoid glutinoside content of Rehmannia glutinosa by Sulfo-Phospho-Vanillin method
    SUN Peng, MA Jun-zheng, DUAN Chen-chen, FU Na-na, HUANG Yong, LI Xian-en
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 115-117.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.022
    Abstract （607）      PDF （1630KB）（295）       Save
    To establish a method for determination of total iridoid glutinoside in the extract of Rehmannia glutinosa and measure the content of total iridoid glutinoside in seven Rehmannia glutinosa germplasms. The Sulfo-Phospho-Vanillin method was applied to compare the content of total iridoid glutinoside in Rehmannia glutinosa. The absorbance was detected at 510 nm. The results showed that a stand curve using catalpol was constructed at a concentration rang of 0.01~0.25 mg/mL. The regression equation was A=1.191 7ρ-0.003 5，the correlation coefficient is 0.999 9. It showed that the content of total iridoid glutinosides in leaves was usually higher than that in roots. The method established in this study is table， simple and rapid for determination of the total iridoid content in Rehmannia glutinosa，and it will provide convenience for content evaluation studies on samples of Rehmannia glutinosa.
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    Design and function implementation of grassland geographic information management system
    LI Gang-yong, PENG Jian, YAN Yang, ZHANG Chu-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 118-120.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.023
    Abstract （491）      PDF （1423KB）（193）       Save
    Based on grassland resources survey data and geographic information, this paper develops a large-scale Xinjiang grassland resources geographic information management platform system based on ArcGIS and WebGIS platforms. The system can directly connect the basic geographic information data released by the digital geospatial framework, and realize the management of one map and spatial analysis of the database of ground two-dimensional vector data, remote sensing data and survey statistics. It provides information support for grassland big data management and protection and utilization of grassland resources.
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    Tipping bucket rain gauge based on STM32 for online monitoring of sensor state
    DUAN Pei-fa, ZHANG Xuan, ZHAO Yu, GAO Zhen-xiang, WANG Xiao-bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 121-124.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.024
    Abstract （508）      PDF （3223KB）（455）       Save
    In view of the fact that the reed failure of tipping bucket rain sensor can not be found in time, a tipping bucket rain gauge which can monitor the state of the sensor on-line is designed. The original normally open reed tube is changed to the normally closed reed tube for counting. At the same time, a detection circuit is added to judge the reed state by STM32 minimum system. At the same time, the reed fault information is timely transmitted by the door circuit signal Inform, easy to maintain. The developed tipping bucket rain gauge, which can monitor the status of the sensor on-line, can monitor the working state of the tipping bucket rain sensor in time, which is convenient for the maintenance personnel to arrive at the site for maintenance in time, and fill the gap that the tipping bucket rain gauge cannot monitor the status online in China.
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    Under various environmental conditions millet canopy image extraction based on H-component K-means
    ZHENG Xiao-nan, ZHANG Wu-ping, HAN Ji-wan, YANG Fan, LIU Yu-ping, LIANG Liang, LI Fu-zhong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 125-130.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.025
    Abstract （420）      PDF （8085KB）（113）       Save
    This research takes millet as the research object, collects four types of canopy images of millet, cloudy sky, complex background with shadows, uneven illumination, and dew and rain reflection. The extra-green segmentation, K-means clustering segmentation in Lab space and H-component of K-means clustering segmentation are used for canopy extraction, and the optimal method for millet canopy extraction under different conditions is explored. For millet canopy images with cloudy and complex backgrounds and shadows, the three algorithms can extract relatively completely, and the segmentation accuracy was above 93%; for images with uneven lighting, the ultra-green segmentation effect is the worst, based on the Lab space and the K-means clustering segmentation effect of the H-component is relatively excellent, respectively, 93% and 96%; for the image of dew and rain reflection, the K-means clustering segmentation accuracy based on the H component is the highest, reaching 97%. The results show that the K-means clustering algorithm based on H component is ideal for segmentation of millet canopy images obtained under four different environmental conditions, which provides a certain reference value for subsequent automatic monitoring of millet growth.
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    Research on information extraction of small water body based on GF-1 remote sensing image ——Take Chakou watershed as an example
    ZHENG Xin-yue, GUO Qing-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 131-137.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.026
    Abstract （402）      PDF （4290KB）（257）       Save
    In response to the problem of poor extraction of tiny water bodies in mountainous areas due to different factors, the GF-1 satellite remote sensing image on September 1, 2016 was selected, and three different methods of NDWI, SWI decision tree, and SVM classification were used to were extracted the small water bodies in the Chakou basin of Shanxi province in the gully area, and the extraction effect was visually compared and accuracy verified. The results showed that the high-resolution remote sensing images have better extraction results and higher accuracy,for the small water bodies in mountainous areas than the low- and medium-resolution remote sensing images. GF-1 images can be used to monitor the water body of the river basin; The main factors affecting the water body extraction of the river basin are bright-colored ground objects （mainly buildings） and shadows; NDWI, SWI decision tree, SVM classification method among the three methods, the water body information extracted by the NDWI method is weaker, and the SWI decision tree and SVM classification methods have higher accuracy, but the SWI decision tree method eliminates the influence of buildings and bright-colored ground objects, and clearly distinguishes shadows and water bodies. So it is more suitable for the extraction of tiny water bodies in the watershed.
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    Research on applicability of remote sensing classification methods for land use in hilly area of southern Jiangsu
    ZHANG Ya-xin, WU Zhi-yong, HE Hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 138-143.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.027
    Abstract （416）      PDF （5421KB）（237）       Save
    Accurate, timely and effective land use information is of great significance to urban development planning as well as resources development and utilization. Jurong river basin was taken as the study area in order to evaluate the applicability of different remote sensing image classification methods in obtaining land cover information. With multi-temporal Landsat 8 OLI images, the land cover of Jurong river basin was obtained by supervised classification methods and decision tree method based on time-series characteristic indices. Comparison between the land cover information obtained from different extraction methods was carried on according to the overall classification accuracy and spatial distribution of ground objects. The results show that the overall classification accuracy and Kappa coefficient of support vector machine was the highest （96.4% and 0.948）, but the decision tree method based on time-series characteristic indices tends to be the closest to reality considering the spatial distribution of different ground objects;Maximum likelihood method and decision tree method were more applicable to land use classification in hilly region of southern Jiangsu province.
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    Exploring the utility of DNA barcoding in species identification of Chironomus
    YU Hai-jun, WANG Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 144-148.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.028
    Abstract （531）      PDF （2569KB）（327）       Save
    The research analyzed 749 DNA barcodes collected the 12 species of Chironomus species and downloaded barcodes in BOLD and Genbank database by ABGD （Automatic Barcode Gap Discovery） and NJ （Neighbor-joining）. The result showed that ABGD analysed genetic distance, existed “DNA barcode gap”. The NJ tree supported 60 molecular operational taxonomic units, and keep conformed to morphological identification.In addition, based on the data are found, Chironomus sp.TE11 from public library should be Chironomus pseudothummi. Our result is an important supplement for the Chinese DNA barcodes study of Chironominae, and provide data support for establishing and perfecting the Chinese DNA barcodes database of Chironominae.
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    Construction of pig CD150 eukaryotic expression vector and its stable expression in Marc-145 cells
    ZHANG Lan, LIANG Wan, ZHOU Dan-na, YANG Ke-li, GUO Rui, LI Peng, TIAN Yong-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 149-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.029
    Abstract （424）      PDF （2580KB）（151）       Save
    The full-length porcine CD150 gene sequence was cloned and connected to the eukaryotic expression vector pEGFP-N1 to obtain the recombinant vector pEGFP-N1-CD150. The expression of pEGFP-N1-CD150 was confirmed by sequencing, Western blot and transient transfection. The results showed that the sequence comparison rate of pEGFP-N1-CD150 vector and CD150 gene sequence was 100%; when the density of Marc-145 cells was 70%~80%, the transfection peak was 24 h, and the green fluorescence was the strongest; the protein with molecular weight of about 80 kDa was identified by Western blot, which was consistent with the expected size, indicating that CD150 protein was successfully expressed.
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    Research on the legal issues of the new model of live commerce to help farmers
    MA Meng-meng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 152-155.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.030
    Abstract （618）      PDF （1499KB）（671）       Save
    Live commerce to help farmers is an innovation of poverty alleviation mode in the internet era, which broadens the sales channels of agricultural products, promotes the increase of farmers’ income, and promotes the upgrading of agricultural industry. This study expounded the legal attributes and functions of live commerce, analyzed the legal problems existing in the new mode of live commerce, and put forward some suggestions on regulating the new mode of live commerce, so as to promote the stability of live broadcasting and goods, and better help the rural revitalization.
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    Research on the willingness of farmers to pay for weather index insurance from the perspective of concurrent business：Based on survey data of rice-shrimp co-cultivate farmers in Jingzhou and Qianjiang,Hubei
    CHENG Yan, TAN Shu-hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 156-161.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.031
    Abstract （401）      PDF （1505KB）（204）       Save
    The insurance demand reflected by willingness to pay has an important influence on the development of agricultural insurance. Based on the 229 questionnaires of farmers in the field survey in Hubei province, a Logistic model was established to explore the factors affecting the willingness of farmer to pay, and the conditional valuation method was used to calculate the average willingness of farmers to pay. The results show that pure farmers are more willing to pay for weather index insurance than part-time farmers. The willingness to pay is related to their years of education, their scale of planting and breeding, the frequency of meteorological disasters, the degree of impact of meteorological disasters, whether they have bought insurance, and the protective role of insurance. Under the maximum amount of insurance repayment of 1 500 yuan per 667 m2, the average willingness of farmers to pay is 37.72 yuan per 667 m2, which is far lower than 90 yuan per 667 m2 that is the price without subsidies.
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    Investigation and analysis on recognition of selenium-rich tea
    HOU Yu-jing, QIAO Rui-huan, ZHAO Lin-long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 162-166.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.032
    Abstract （610）      PDF （2123KB）（236）       Save
    Through the investigation of college students’ knowledge of Ankang Ziyang selenium-rich tea and their understanding of tea culture, and on the basis of statistical analysis, this study put forward some countermeasures and suggestions for the development of Ankang selenium-rich tea industry, aiming at the marketing strategy of Ankang selenium-rich tea shop, the promotion of tea culture in local schools and the guidance of local government on selenium-rich tea.
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    Analysis of agricultural productive service outsourcing and cotton farmers’ cotton planting behavior
    LI Peng-cheng, MIN Yi-lan, MI Qiao, LI Xian-dong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 167-172.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.033
    Abstract （395）      PDF （1523KB）（130）       Save
    Based on the theory of planned behavior, using the interview data of 1 036 farmers in Xinjiang Uygur autonomous region, this study analyzed the internal mechanism between agricultural productive service outsourcing and farmers’ willingness to plant cotton by using structural equation model. The results showed that the logic of farmers’ action in agricultural productive service outsourcing and cotton planting intention followed the path of “cognition-willingness-behavior”. Behavioral attitude, subjective norms and cotton planting policy had significant positive effects on the outsourcing tendency, and subjective norms had the largest promoting effect, while perceived behavioral control had negatively correlated with the outsourcing tendency. Cotton planting policy was conducive to promote the occurrence of cotton planting behavior, and indirectly induced the cotton planting behavior by mobilizing the outsourcing tendency of farmers. Outsourcing tendency had a partial mediating effect between their cognition and cotton planting behavior response, which affected farmers’ cotton planting intensity and driven cotton planting behavior.
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    Analysis framework of emergency management of public health emergency and capacity modernization
    WANG Yuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 173-177.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.034
    Abstract （490）      PDF （1558KB）（804）       Save
    The outbreak of the COVID-19 epidemic has posed a huge challenge to China’s emergency management system for public health emergency,exposed the shortcomings and deficiencies of emergency management system. Based on this situation,this study analyzed the whole process of emergency management of public health emergency in China, discussed the challenges faced by emergency management of public health emergency at this stage, further proposed a path to realize modernization of emergency management of public health emergency from the whole process of emergency management.
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    Evaluation of the suitability for the development of Xi’an rural endowment industry based on analytic hierarchy process
    FU Yong-mei, XING Na, ZHANG Wan-jin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 178-182.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.035
    Abstract （471）      PDF （1502KB）（143）       Save
    Through the construction of evaluation index system of rural endowment industry development in Xi’an city, the suitability of different resource factors in the development of the rural endowment industry was analyzed by using the analytic hierarchy process, and then the resource factors with low suitability were targeted to improve, so as to promote the development of the rural endowment industry in Xi’an with high quality, provide new pension mode and solution for the promotion of the pension industry.
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    Research on the relationship between farmland transfer and farmers’ income from the perspective of resource endowment：A case study of Nileke county
    CAO Jing, ZHAO Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 183-187.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.036
    Abstract （400）      PDF （1507KB）（146）       Save
    Based on the petspective of resource endowment（land resource endowment and human capital endowment）, this study used the field survey data from 263 farmer households in Nileke county, used multiple linear regression model to empirically analyze the relationship between farmland transfer and farmers’ income. The results show that farmland transfer area, transfer period significant affect farmers’ income in land resource endowment respect; The labor force quantity and working time, vocational skills level significant affect farmers’ income in human capital endowment respect. Peasant household resource endowment to some extent, influence farmers’ income and stability. According to the resource endowment of peasant households, targeted measures should be taken to actively encourage and guide farmers to participate in various forms of farmland transfer to increase their income.
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    Rational discrimination and era construction of identification of the poor in the process of economic development
    YE Shi-bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 188-192.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.037
    Abstract （404）      PDF （1452KB）（162）       Save
    Based on the premise of whether it is necessary to identify the poor, this study systematically sorted out the concepts and policies of social assistance in ancient Chinese society and Western countries, and explored the economic and social reasons behind the policies, the actual effects of the policies, the influence and defects of the policies. On the premise of poor personnel identification differentiation assistance and comprehensive security system, this paper compared and analyzed the advantages and disadvantages of them. The results show that the identification of relief for poor personnel effect is more accurate, less demand for national finance capital support, less impact on social justice, the positive influence to the economic and social development is better. Its advantages are comprehensive security system or universal cash benefit scheme can not be compared. Whether it is to deal with the specific poverty caused by the normal factors or the poverty caused by the sudden social crisis, we should adhere to the differential social relief mode based on the premise of the identification of the poor.
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    Research on the application of competency model in the performance evaluation of village cadres：Take Hotan area of Xinjiang as an example
    CUI Si-min, DU Hong-ru, LI Zheng-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 193-196.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.038
    Abstract （445）      PDF （1503KB）（345）       Save
    By using literature analysis method, behavioral event interview method and expert opinion method, this study constructed a competency model of the village cadres in Hotan area including 6 dimensions and 25 competency characteristics including work ability, and established evaluation index system based on it, and analyzed it by using fuzzy comprehensive evaluation method. The results show that the constructed competency model has a certain application value in the performance evaluation of village cadres in Hotan area.
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    Research on social organizations participation in rural environmental governance from the perspective of embeddedness：A case study of Qinjian village in Nanjing city
    GU Lin-yu, YE Hong-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (5): 197-201.   DOI: 10.14088/j.cnki.issn0439-8114.2021.05.039
    Abstract （427）      PDF （1450KB）（305）       Save
    In order to improve the rural living environment, realize rural revitalization and promote social organizations to participate in rural environmental governance. This study taked Herun social work service center’s participation in the environmental governance of Qinjian village in Nanjing city as an example, using embeddedness theory and field research methods to study the practice model of multi-dimensional social organizations embedded in rural environmental governance. The practical dilemma of social organizations participation in rural environmental governance was analyzed from system de-embedding, capacity de-embedding and cooperation de-embedding. The results showed that there were some problems in the participation of social organizations in rural environmental governance, including the lack of legal system located in the public and social organizations, the lag of social organizations professional ability in rural environmental governance, and the disconnection between social organizations and government, villagers and other social organizations. In view of these problems, from the perspective of external support, internal reconstruction and collaborative re-emplacement, it is proposed to enact laws concerning social organizations, improve the mechanism for public participation in environmental governance, improve the ability of social organizations to participate in rural environmental governance, strengthen the principal position of villagers, and strengthen the cooperative relationship between government, villagers and social organizations.
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    Research progress on plant accumulation and metabolism of selenium and enlightenment on the development of selenium-rich planting industry
    LI Lin-ling, ZHANG Guo-ji, GUO Jie, XIAO Xian, CHENG Shui-yuan, CHENG Hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 5-14.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.001
    Abstract （561）      PDF （2737KB）（672）       Save
    This research progress summarizes and analyzes the relevant literature on selenium absorption and metabolism by plants at home and abroad. On the basis of expounding the role of plants on the environmental selenium cycle metabolism, the research progress in the absorption, transportation, accumulation and metabolism of selenium by plants in recent years and its enlightenment to the development strategy of Se-rich planting industry are systematically analyzed. The conclusion is expected to provide theoretical guidance for the rational use of environmental selenium resource advantages, the full use of plant selenium bio-enhancement functions, and the improvement of the level of Se-rich agricultural industries.
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    Research progress in pharmacological effects and clinical applications of Panax notoginseng saponins
    LIANG Xiao-lian, LIU Qian-qian, LI Wen-li, CHEN Yong, HUANG Zhou-yan, LIU Wen-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 15-19.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.002
    Abstract （856）      PDF （1552KB）（586）       Save
    Panax notoginseng saponins are the main active components of Panax notoginseng, which have pharmacological effects such as anti-inflammation, reducing blood lipid, anti-oxidation and anti-tumor. Based on the review of domestic and foreign literature in recent years, the pharmacological effects and clinical application of Panax notoginseng saponins were summarized,so as to provide reference for the further research and application.
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    Effects of different density on grouting characteristics of maize Xinzhongyu 801 and Jingnongke 728
    SHU Zhong-bing, LI Hui, DUAN Ming-yu, SONG Cheng-xiao, CHEN Lang, BI Shi-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 20-22.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.003
    Abstract （427）      PDF （1538KB）（207）       Save
    Thegrouting characteristics of two hybrid maize varieties, Xinzhongyu 801 and Jingnongke 728, were studied by split plot design. The results showed that Xinzhongyu 801 was a big ear type variety with sparse planting, and Jingnongke 728 was a dense-tolerant type variety, through the analysis of the fresh weight of singlespike. The analysis of 100-grain fresh weight and dry weight showed that the grain size of maize was related to the heredity of varieties, but not influenced by planting density. Through the analysis of grain water content, it was found that the grain water content decreased gradually during the whole filling process. Through the analysis of the grain filling rate, it was found that the grain filling rateof Xinzhongyu 801 was also affected by planting density, but the grain filling rateof Jingnongke 728 was less affected by planting density. The fresh weight, dry weight and water content of 100-grain were related to the heredity of the variety, and were not affected by the planting density.
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    Effects of different water and fertilizer treatments on soil nitrogen and phosphorus fertility characteristics in rice-wheat rotation field
    SUN Wan-ru, SHEN Jian-lin, LI Yong, WANG Yi, WANG Bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 23-26.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.004
    Abstract （464）      PDF （2825KB）（179）       Save
    Different irrigation methods, types of nitrogen fertilizer, and phosphorus fertilizer levels were used to explore changes in nitrogen and phosphorus fertility of rice-wheat rotation fields in Taihu lake basin. The results showed that the total nitrogen, ammonium nitrogen, nitrate nitrogen, total phosphorus, and available phosphorus content in the soil after the rice harvest decreased by 3.73~12.27, 18.58~43.34, 7.36~24.15, 1.22~9.67 and 14.03~35.92 percentage points respectively, compared with those before soaking; Compared with traditional irrigation, intermittent irrigation treatments reduced the ammonium nitrogen and nitrate nitrogen of the soil after harvest by 12.81~20.25 and 2.46~14.36 percentage points, and the total phosphorus increased by 1.65~3.99 percentage points; In traditional irrigation and intermittent irrigation, the content of total nitrogen and total phosphorus in the soil after harvest treated with the new slow-release nitrogen fertilizer reduced by 30% was higher than that of conventional urea split fertilization and no fertilization treatments; Compared with the control treatment, the rice season with no phosphorus treatments after harvest, the total phosphorus in the soil increased by 0.38~5.62 percentage points. Therefore, intermittent irrigation, slow-release nitrogen fertilizer with 30% nitrogen reduction and rice season phosphorus-free treatment can effectively reduce soil nitrogen and phosphorus losses, thereby reducing water pollution caused by farmland nitrogen and phosphorus loss.
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    Applied research on preparation of biotechnology fulvic acid by straw
    HUANG Ming-hui, ZHANG Qian-ru, HAN Meng-qi, GAO Xi-long, LI Hua, LUO Xing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 27-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.005
    Abstract （410）      PDF （2091KB）（377）       Save
    Using peanut straw,wheat straw and peanut red clothing as raw materials, biotechnology fulvic acid was prepared by fermentation method, and the effect of biotechnology fulvic acid on plant growth was studied. The results showed that different sources of biotechnology fulvic acid had different effects on seed germination, and different concentrations of biotechnology fulvic acid from the same source had different effects on seed germination. Among them,the biotechnology fulvic acid 15 times solution of peanut straw source increased the germination rate by 15.00 percentage points and the root length by 7.1% compared with the blank, and seed germination and radicle growth were better.
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    Evaluation on soil nutrient characteristics for protective area of agro-product geographical indications：Taking the apple orchard in Yicheng county of Shanxi province as an example
    YAO Jun-feng, WU Yan-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 31-35.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.006
    Abstract （393）      PDF （3972KB）（277）       Save
    Taking the Yicheng apple orchard as an example to discuss spatial distribution characteristics of soil fertility for protective area of agro-product geographical indications. 300 soil samples were collected from protective area. Twelve indicators of soil fertility and integrated fertility index can be evaluated and distributed by employing SPSS 22.0 and ArcGIS, including total N, available N, available P, available K, organic matter, available S, available Cu, available Zn, available Fe, available Mn, available B, available Mo. The coefficient of variation as follows： Available S（2.08%）<available Mn（6.51%）<available Cu（9.66%）<available Zn（10.00%）<available Fe（13.89%）< available B（15.93%）<available Mo（19.16%）<organic matter（26.87%）<total N（37.58%）<available N（40.92%）<available K（48.82%）<available P（110.39%）. The integrated fertility index had been divided into five levels, ranging from 0.23 to 0.72, which dominated by 3th level（from 0.35 to 0.40） and 4th level（from 0.30 to 0.35）, accounting for 35.12% and 28.43%, respectively.
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    Evaluation on soil quality of newly-established urban green space in Nanning city
    HUANG Li-dan, HUANG Xu-guang, ZHAO Jian-wen, JIANG Li-fu, QIN Ling, YANG Si-xia, LU Yan-song, ZHONG Qiong-qiong, HUANG Ling-pu, HUO Xing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 36-41.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.007
    Abstract （439）      PDF （1621KB）（363）       Save
    The soil physiochemical properties, such as pH, organic matter and available nutrients were determined. And soil improvement of road greening in Nanning, comprehensive soil fertility was evaluated by the Nemorow grading method. The results indicated that the texture types mainly included loam and viscous loam soil. The soil pH was dominated by neutrality（pH 6.5~7.5）. The average of soil bulk density was 1.14 g/cm3, CEC （cation exchange capacity） was 12.72 cmol（+）/kg. Organic matter and available nitrogen were distributed in grades 1 to 4 with an average of 31.54 g/kg and 110.24 mg/kg. Available phosphorus was above grade 2 or higher （high level） with an average of 43.4 mg/kg. All the available potassium （mean 59.21 mg/kg） were at the level of grade 4 and below medium content. Nemerow comprehensive fertility index analysis showed that the soil fertility index of newly-built green land in Nanning was between 1.19~1.78, which was in the middle and upper level. It was suggested to pay attention to the supply of natural organic matter in greenbelt soil and promote the benign cycle of urban soil ecosystem.
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    Research on the risk of collapse and landslide in Wenchuan earthquake disaster area based on logistic regression model
    YANG Wei-hua, YANG Zhi-qiang, ZHAO Jian-lin, LIANG Yong-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 42-48.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.008
    Abstract （399）      PDF （12229KB）（47）       Save
    22 counties in the Wenchuan earthquake disaster area were selected as the study area. Based on 6 007 collapse and landslides data and multi-source information, using GIS technology, seven factors including elevation, slope, aspect, fault, lithology, rainfall, and land use were selected as the influencing factors for the evaluation of collapse and landslide susceptibility. Then based on the logistic regression model, the susceptibility to collapse was evaluated, and a susceptibility zone map generated. The results showed that the distribution of historical collapse and landslide points fitted well with the zoning map of collapse and landslide susceptibility. Wenchuan county, Mao county, Beichuan county, Mianzhu city, Qingchuan county, and Pingwu county in this area were areas with high susceptibility to collapse and landslides. The ROC curve was used to evaluate the success rate and prediction rate of the model, and the AUC （Area under curve） of the training sample set was 0.84, and the AUC of the verification sample set was 0.79, indicating that the logistic regression model used in this paper had a high prediction accuracy.
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    Research on the micro-renewal of traditional village landscape based on PSPL investigation and spatial syntax：A case study of Weipo village, Mengjin county, Henan province
    YANG Zi-meng, YANG Fang-rong, ZHAO Yun, GUO Ming-hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 49-53.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.009
    Abstract （356）      PDF （8169KB）（85）       Save
    Taking the public space of the Weipo village, Mengjin county, Luoyang city as the research object, this paper adopts the method of PSPL investigation to investigate the distribution of population flow in the site and collects the real renewal intention of tourists and villagers. Using the method of axis analysis and horizon analysis in spatial syntax, the important nodes of spatial update are selected by Depthmap software from the scientific point of view, the micro-renewal research is made with point-band surface. It is suggested that the road guidance system should be improved on the road leading to Weizi Peony Garden in Weipo village and the folk performing Arts Square, Jiukong Kiln and Buddha Hall. On the axis with higher integration degree in the village, the protection facilities of shading from sun and rain, seats, street lamps and other related infrastructure are added to reflect the humanization of the space and improve the comfort when visiting.
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    Spatial and temporal characteristics of LUCC in main urban area of Chongqing city based on GIS
    WANG Yuan-yuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 54-59.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.010
    Abstract （458）      PDF （2819KB）（232）       Save
    Based on 1988, 2000 and 2010 TM image data, combined with remote sensing and GIS technology the Chongqing city urban area from 1988 to 2010 of land use and cover change （LUCC） characteristics and the status of land use were revealed, and the migration of city of center of gravity was studied. 22 years of land conversionwas analyzed by using markov chain model, the development trend of Chongqing’s main urban area in the next 40 years was predicted. The results showed that from 1988 to 2010, all kinds of land areas in the main urban area of Chongqing city were changed, urban construction area increased by 593.95 km2, and forest and grassland area increased by 102.8 km2, and water area decreased by 166.85 km2, and cultivated land decreased by 427.97 km2, and unused land decreased by 101.93 km2. In the past 22 years, the government had vigorously developed urban areas, and also paid attention to soil and water conservation and afforestation. Markov predicted that Chongqing’s main urban areas will maintain this trend for a long time to come.
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    Investigation and analysis of resistance to powdery mildew of rubber tree germplasm resources
    GUAN Xin, PENG Yan-lin, HU Yan-shi, ZENG Xia, TU Min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 60-63.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.011
    Abstract （482）      PDF （1533KB）（202）       Save
    Powdery mildew of rubber tree broke out in the spring of 2020. At the end of the epidemic period, the resistance of Amazonwild germplasm and Wickham cultivated germplasm to powdery mildew was investigated in the national rubber germplasm resource nursery. The results showed that a total of 4 788 germplasm were investigated, among which 18 germplasm were disease resistant, accounting for 0.38%, and all were Amazon wild germplasm. 146 medium resistant germplasm （3.05%）, 145 wild germplasm and 1 Wickham germplasm. 1 180 moderately susceptible germplasm （24.64%）; 2 557 susceptible germplasm, accounting for 53.40%; There were 887 highly susceptible germplasm （18.53%）.
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    Isolation, purification and molecular identification of the pathogen of rice blast
    ZHAO Shi-ming, WANG Mei-ling, LYU Feng-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 64-66.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.012
    Abstract （789）      PDF （4722KB）（370）       Save
    The leaves of rice infected with rice blast disease were collectted from different rice cultivation areas. Pathogen isolation and purification culture were carried out by PDA medium, and the morphology of colony melanin and conidia were identified by preliminary screening. Mycelia DNA was extracted with kit, PCR amplification was performed using specific primers of Blast, and the amplified products were sequenced and Nucleotide Blast comparisons were performed. The results showed that the disease sample was taken six cultivation areas after the initial screening to determine 5 strains of secretion of melanin and observed its conidium, PCR product sequencing confirmed that the two sample sequence was the same, and the imperfect fungi of NCBI website door of grey pear spore （Pyricularia grisea） highly homologous, determine to obtain pure strains of rice blast.
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    Efficacy and safety evaluation of 15% metazosulfuron·penoxsulam dispersible oil suspending agent against annual weeds in transplant rice field
    LIU Ying, SHI Xiu-fei, DU Xiao-ying, LI Jun-kai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 67-69.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.013
    Abstract （729）      PDF （1514KB）（351）       Save
    Aiming to confirm the control effects of 15% metazosulfuron·penoxsulam dispersible oil suspending agent（OD） against annual weeds and safety in transplant rice field, field pharmacodynamic experiments were carried out by the stem and leaf spray methods. The results showed that the recommended dosage of 15% metazosulfuron·penoxsulam OD in field were 67.50~112.50 g （a.i.）/hm2. At 30 day after spraying treatment, the weeds control effects on quantity and on fresh weight were 98.39% and 98.83%, respectively. Within the range of recommended dose,15% metazosulfuron·penoxsulam OD could effectively control weeds in transplant paddy field, and it was safety to rice.
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    Analysis on main control factors of total plant alkaloid in upper leaf of flue-cured tobacco in Enshi tobacco area
    DENG Jian-qiang, LIU Li-ping, WANG Hong-wei, ZHUANG Tao, DAI Hui, LU Cheng-nian, LIU Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 70-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.014
    Abstract （426）      PDF （4693KB）（340）       Save
    The effects of nitrogen application rate, transplanting density and soil chemical properties on total plant alkaloids of upper leaves of flue-cured tobacco were studied in a field experiment with the flue-cured tobacco plants planted in different soil fertility areas in Enshi. The results showed that, ① compared with transplanting density, nitrogen application rate had a greater effect on total alkaloid content, but increasing planting density was helpful to decrease total alkaloid content under medium and low nitrogen application rates;② covariance analysis showed that the effect of nitrogen application rate on total alkaloids was significant, but the interaction between nitrogen application rate and transplanting density was not significant;③ the total alkaloid was negatively correlated with soil available phosphorus, and the available phosphorus entered the stepwise regression model in 2018 and 2017, and controlled the total alkaloid;④ the path analysis method of structural equation model （SEM） showed that with the increase of available phosphorus, the total alkaloid content decreased significantly, and the indirect path coefficient of available phosphorus was significant;⑤ The indirect path coefficient of available P and available K was larger, accounting for about 80% of the intermediate path coefficient,the total alkaloid could be affected indirectly by available potassium. Proper control of the amount of nitrogen fertilizer and high-density planting measures were adopted in some areas where the total alkaloids were easy to be high. Soil available phosphorus could be one of the main controlling factors ofthe total alkaloid.With the gradual enrichment of soil phosphorus, it would be beneficial to reducethe total alkaloid , but the effects of other quality factors of tobacco leaves needs further investigation.
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    Surveying DNA epigenetic diversity in the foreign hot pepper germplasms
    XU Xiao-wan, XIA Bi-bo, WU Zhi-ming, TIAN Yong-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 76-80.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.015
    Abstract （398）      PDF （4203KB）（216）       Save
    Nine pairs of primers with good repeatability and clear bands were screened from 63 pairs of MSAP primers, and 30 hot pepper （Capsicum spp.） germplasms introduced from abroad were amplified by MSAP. The analysis of DNA methylation pattern showed that fully methylation was major methylation type in 30 hot peppers. However,MSP（Methylation-sensitive polymorphisms） clustering and MISP（Methylation-insensitive polymorphisms） clustering were all relatively discrete, and the related principal coordinate analysis was basically consistent with the clustering analysis results. The DNA methylation study did not gather Capsicum spp. into the same group. It is shown that the epigenetic variation of hot pepper is more abundant than the genetic variation of the genome.
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    Study on planning of waterfront ecological corridor：A case study of Shuangqiaoxi park in Chongqing city
    LIU Zi-yin, SUN Li-na, SUN Li-qiang, WANG Peng-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 81-85.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.016
    Abstract （750）      PDF （13038KB）（449）       Save
    Based on the actual demand of urbanization for ecological landscape, the application of waterfront ecological corridor was discussed, taking Shuangqiaoxi park in Chongqing as the research object, based on the concept of ecological restoration and protection andthe principle of ecological priority, the current situation and limiting factors of the base were analyzed. Through the planning and design strategy, through the ecological landscape restoration and protection, to build a benign and stable, diverse and sustainable ecological foundation, to create an ecological stability, rich landscape public interactive space. The design strategy of waterfront ecological corridor was summarized, in order to provide reference for waterfront landscape restoration.
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    Research on the transformation path of traditional orchards under the guidance of sightseeing agriculture：Taking the Shishan lake Yasen Agricultural Sightseeing park in Xinyang city as an example
    WANG Meng-chen, YUAN De-qiang, WANG Peng-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 86-89.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.017
    Abstract （431）      PDF （3120KB）（302）       Save
    The study taked the Shishan lake Yasen Agricultural Sightseeing park in Xinyang city as an example, analyzed its development constraints and resource advantages based on field research data, grasped the integration principle of agricultural tourism and carried out the design of four sections of viewing experience, leisure and entertainment, scientific research and education and service management. After that, the overall planning layout of “one heart, one axis, two corridors, four districts and multiple points” was formed. The aim is to provide a reference for the development of agricultural garden in Xinyang city and other agriculture-oriented areas in Henan province.
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    The rapeutic effect of 8 kinds of aquaculture drugs on the Acrossocheilius hemispinus infected Ichthyopthirius multifillis
    CHEN Bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 90-94.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.018
    Abstract （410）      PDF （1546KB）（300）       Save
    In order to obtain the effective drugs for the treatment of Acrossocheilius hemispinus infected Ichthyopthirius multifillis, the therapeutic test of 8 aquaculture drugs with different density on the Acrossocheilius hemispinus artificial infected Ichthyopthirius multifillis was studied. The results showed that copper sulfate could accelerate the division and multiplication of Ichthyopthirius multifillis. Baicao antidote（natural plant carbon）had no effect on killing Ichthyopthirius multifillis vegetative body. When the formaldehyde solution was used alone, it had a certain killing effect on the vegetative body of Ichthyopthirius multifillis, but the treatment cycle was long and the survival rate of diseased fish was low. Benwenjing（dried ginger, pepper, apricot leaves） had no effect on killing the vegetative body of Ichthyopthirius multifillis, but it can improved the resistance of the diseased fish and reduced the mortality rate, so it should be used in conjunction with other insecticides. When the industrial salt（NaCl）concentration was between 3 000 and 5 000 mg/L, it could effectively remove the vegetative body of Ichthyopthirius multifillis off the diseased fish, and the cure rate of the diseased fish could reach （86.7±9.4）%. The Xiaoguajuesha（matrine, capsaicin）could accelerate the division and proliferation of Ichthyopthirius multifillis in the early stage, but it could effectively kill the larvae of Ichthyopthirius multifillis in the later stage. It was suitable to be used when the number of Ichthyopthirius multifillis was not large. When the treatment concentration of Yukangle（active calcium carbonate）was 4~6 mg/L, the insecticidal effect was obvious, and the cure rate of the diseased fish was（46.7±9.4）%~（60.0±0.0）%; When the treatment concentration of Bailingxiaoguajing（plant extracts）was 1.6~2.0 mg/L, the insecticidal effect was obvious, and the cure rate of the diseased fish was（80.0±0.0）%.
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    Acute toxic effects of four common disinfectants on Ruditapes philippinarum
    CHEN Zhi, LI Wei-peng, HU Feng-xiao, HUANG Jian, CHEN Qi-chun, WEI Cheng-chen, LIAN Cheng-yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 95-99.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.019
    Abstract （433）      PDF （1577KB）（225）       Save
    In order to obtain the safe concentration of four common disinfectants on the scallop of Ruditapes philippinarum, and provides a theoretical basis for antisepsis treatment of Ruditapes philippinarum before artificial oxytocin, in this study, the acute toxicity of potassium permanganate, povidone iodine, chlorine dioxide and formaldehyde to Ruditapes philippinarum was tested by static acute toxicity test. The result showed that the safe concentration of the four disinfectants was potassium permanganate （0.24 mg/L）,povidone iodine （11.04 mg/L）,chlorine dioxide （0.68 mg/L）,formaldehyde（1.87 mg/L）; it can be known that the four disinfectants to Ruditapes philippinarum was potassium permanganate > povidone iodine > chlorine dioxide > formaldehyde. Povidone iodine should be used for disinfection in the process of oxytocin breeding of Ruditapes philippinarum.
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    Study on community structure and diversity of zooplankton in Qingshui river
    SHI Wei, DUAN Jie-reng, QIU Xiao-cong, WANG Xiao-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 100-104.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.020
    Abstract （402）      PDF （1596KB）（286）       Save
    The 22 sample sites of Qingshui river basin were surveyed in July （summer） and November （winter） 2018,the zooplankton species composition, density, biomass, common species,dominant species composition and seasonal variation were studied to explore the population structure and diversity of zooplankton in Qingshui river basin. The results showed that 23 species of zooplankton were identified in Qingshui river basin, including 8 species of rotavirus, 8 species of dendritic and 7 species of copepods. There were 6 kinds of dominant species, of which the daphnia was the most sharp. Zooplankton species, density, biomass and distribution varied by season, with summer species, densities and biomass peaking and winter at a low ebb. The Margalef index of zooplankton in Qingshui river basin was 0.432~0.997, Shannon-Wieaver index was 1.251~1.922, and evenness index was 0.233~2.066. The structure and diversity of zooplankton population were different in different sampling sites. According to Margalef index, Shannon-Wieaver index and evenness index, it can be preliminarily judged that water quality in Qingshui river basin is seriously polluted and moderately eutrophic, which needs to be strengthened for treatment and protection.
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    Night distribution pattern of bats species diversity in Xishuangbanna
    CAO Hui, YANG Jian-bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 105-107.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.021
    Abstract （578）      PDF （1836KB）（208）       Save
    In order to explore the night variation of bat species diversity in Xishuangbanna, acoustic monitoring detector was used to probe bat activities, analyzed the variation of bat species diversity in different time at night during a year. The results showed that the distribution of bat species diversity at night was significantly different, except 18：00-20：00 and 20：00-22：00, 22：00-00：00 and 00：00-02：00, 00：00-02：00 and 02：00-04：00. In the seasonal variation, the first peak of bat species diversity in autumn and winter is one hour earlier than that in spring and summer.
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    Distribution and activity of serum protein of pregnancy and non-pregnancy Erinaceus amurensis Schrenk
    JIN Zhi-min, JIA Xiu-qi, YANG Xin-yu, SU Hang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 108-109.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.022
    Abstract （350）      PDF （1766KB）（167）       Save
    The discontinuous polyacrylamide gel electrophoresis was used to analyze and compare the activities of serum proteinof pregnancy and non-pregnancy Erinaceus amurensis Schrenk. The results showed that the non-pregnant Erinaceus amurensis Schrenk serum protein electrophoresis separated 20 bands with a mobility of 0.009~0.590,pregnant Erinaceus amurensis Schrenk serum protein electrophoresis separated 25 bands with a mobility of 0.005~0.590. There were significant differences in the distribution, activity and number of electrophoretic bands between pregnant and non-pregnant individuals.
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    Study on optimization of extraction process of Bupleurum chinensis saponins by central composite design-response surface methodology
    ZHAO Yan-dan, ZHAO Yan-jie, LI Xiao-yang, SONG Li-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 110-114.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.023
    Abstract （448）      PDF （6515KB）（283）       Save
    On the basis of single factor experiment, the effect of extraction times on the content of saponins in Bupleurum chinense was analyzed. The extraction process of saikosaponins was optimized by response surface method of central composite design. The effects of extraction time, extraction temperature and the ratio of liquid to material on saikosaponins were investigated. The results showed that the best conditions of total saponins of Bupleurum chinense were extraction temperature 80 ℃, extraction time 60 min, liquid-to-material ratio 8∶1（mL∶g）, and extraction twice. Under the optimal condition, the content of total saponins of Bupleurum chinense was 1.80 mg/g, which was well fitting with the predicted value of 1.81 mg/g. The extraction process by response surface methodology is accurate, reliable and predictable.
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    Design of water fertilizer integrated irrigation system based on PLC
    CHAO Yang, LI Pei-dong, HUANG Lin-gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 115-118.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.024
    Abstract （495）      PDF （2464KB）（431）       Save
    A set of water fertilizer integrated irrigation controller with high stability, simple operation, low cost and sufficient function was studied and designed. The system used sensor technology, micro-computer technology, PLC as the core, and drip irrigation technology, according to the soil humidity and the required fertilizer and water threshold in the process of crop growth, to carry out automatic irrigation and fertilization. The results showed that the system could effectively improve the productivity of facility agriculture and the efficiency of fertilizer and water use, save the amount of water resources, and provide some technical support for small and medium-sized facility agriculture farmers in western region.
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    An hourly prediction model of air temperature based on deep GRU neural network
    LUO Yu, LUO Lin-yan, FAN Jia-zhi, DUAN Si-ru, GAO Wen-juan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 119-122.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.025
    Abstract （434）      PDF （1798KB）（286）       Save
    Base on deep gated recurrent unit （GRU） neural network, an hourly prediction model of air temperature in Shimen county are proposed by using hourly surface meteorological data （air temperature, air pressure, dew point temperature, relative humidity and water vapor pressure）, besides the accuracy of the model is analyzed. As the result indicated, the accuracy of the deep GRU model gradually declines with the prediction horizons, whose coefficients of determination, mean absolute error, mean values of root square error and the prediction accuracy are 0.996~0.906, 0.359~1.974, 0.510~2.562 ℃ and 62.529% respectively, which has higher performance than the prediction model based on autoregressive integrated moving average （ARIMA）, and reflects turning changes of air temperature as well. The hourly air temperature prediction accuracies in Shimen from April to July in 2019 are contrasted of the deep GRU model and numerical weather predictions （NWPs） from European Center in addition to Japan. The result shows that the deep GRU model would be a beneficial supplement to the air temperature short-impending prediction within 12 hours due to its prediction accuracies are all better than NWPs in 3, 6 and 9 h horizons.
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    The reform of agricultural scientific research evaluation system in China
    SI Zhi-zhi, LI Jin-hu, GUO Jing-li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 123-126.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.026
    Abstract （438）      PDF （1536KB）（175）       Save
    The agricultural research evaluation system is one of the important basis and tool for the evaluation of agricultural scientific research. However, the evaluation system of agricultural research adopted in China is imperfect,which has some problems in practice. Based on the experience of foreign agricultural scientific research evaluation system, this paper considered the reform ideas of China's agricultural scientific research evaluation system, and proposed to establish a correct value orientation and build a “four in one” agricultural scientific research evaluation system.
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    The current situation and protection of agro-cultural heritage of species in Hubei province
    WANG Ran, LEI Shu-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 127-130.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.027
    Abstract （406）      PDF （1718KB）（407）       Save
    Based on the investigation and research on the agro-cultural heritage of the species in Hubei province, The results showed that the protection of the ago-cultural heritage of the species was low, the management was lack, and the cultural connotation was lacking. Therefore, it was necessary to strengthen the management and protection, realize the dual protection of the material cultural heritage and the intangible cultural heritage, and promote the integrated development of culture, agriculture and tourism.
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    Analysis of tourism resources evaluation model based on BP neural network
    LIU Yan-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 131-134.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.028
    Abstract （384）      PDF （2292KB）（229）       Save
    At present, the evaluation of tourism resources had a strong subjective color. There were many variables and strong nonlinearity in each evaluation model. BP neural network model used MATLAB calculation program to evaluate tourism resources, which can avoid the influence of subjective factors on the evaluation results. By using the methods of literature comparison, theoretical analysis and expert consultation, the evaluation index system including 7 first-class indexes and 16 second-class indexes was constructed. On this basis, the evaluation model was designed, and the error value in the evaluation model was analyzed emphatically. The evaluation model was applied to the tourism resources evaluation of several major cities, and the evaluation results and error range meet the requirements.
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    Spatial pattern analysis of strategic emerging industries in Jiangsu province
    WANG Yan-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 135-138.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.029
    Abstract （395）      PDF （3230KB）（339）       Save
    Taking 109 districts and counties in Jiangsu province as the spatial analysis units, the spatial agglomeration pattern of strategic emerging industries in Jiangsu province in 2017 was studied by using spatial autocorrelation method. The results showed that, there were large spatial differences in the overall spatial distribution of strategic emerging industries in Jiangsu province, which was more in southern Jiangsu and less in central Jiangsu and northern Jiangsu. There was an obvious spatial agglomeration pattern,which were mainly high-high-level agglomeration and low-low-level agglomeration, high-high-level agglomeration was mainly concentrated in Suzhou-Wuxi-Changzhou region, and low-low-level agglomeration was mainly concentrated in northern Jiangsu. The results provided a reference for the government to formulate the strategic emerging industrial policies of different districts and counties, and provided the basis for the better development of strategic emerging industries.
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    The dialectical relationship between the theory of “Two Mountains”and the development of outdoor sports resources
    YOU Mao-lin, LIU Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 139-142.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.030
    Abstract （435）      PDF （1506KB）（200）       Save
    Since 2016, the central government had issued a number of policies to support the development of outdoor sports. At the same time, more and more people participated in outdoor sports. Outdoor sports had been placed in the hope of targeted poverty alleviation and rural revitalization in many places, which had pushed the development of China’s outdoor sports resources into the fast track. Followed by the construction of outdoor sports infrastructure and the influx of outdoor sports enthusiasts into recreation areas, it will inevitably threaten the local ecological environment security. Under the guidance of the “Two Mountains” theory, outdoor sports resources should be properly developed and utilized, but the ecological environment should not be sacrificed. It was necessary to protect the ecological environment as the basis for the sustainable development of human society. Therefore, the development of outdoor sports resources should make full use of the high-quality natural conditions of the original ecology, guard against over industrialization, and avoid the environmental impact caused by large-scale construction and the influx of a large number of external population, the strategy of protecting outdoor sports resources should be adopted.
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    Construction and evaluation of evaluation index system of ecological civilization construction level in southern Shaanxi
    DUAN Kai, LI Rong-rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 143-146.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.031
    Abstract （413）      PDF （1543KB）（153）       Save
    Ecological problem is a topic of great concern to human beings, and it is an important and urgent strategic task for national development. How to objectively and accurately evaluate the level of ecological civilization construction and make scientific and correct planning, we need to establish a scientific and effective evaluation index system of ecological civilization construction level. Based on the relevant theories of ecological civilization, this study taking three cities in southern Shaanxi （Shangluo city, Hanzhong city and Ankang city） as the research objects, the evaluation index system of ecological civilization construction level applicable to the three cities in southern Shaanxi was constructed by analytic hierarchy process（AHP） method, and the ecological civilization construction level of the three cities in southern Shaanxi from 2016 to 2018 was evaluated, and corresponding improvement measures were proposed.
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    Research on the questions of order vegetables in Shiyan city
    WANG Wei, WU Xun-shan, LAN Yu-mei, GONG Shi-fei, GUO Yuan-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 147-150.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.032
    Abstract （327）      PDF （1496KB）（182）       Save
    Shiyan city was located in the core water source area of the central route of South-to-North Water Diversion Project and the deep poverty-stricken of Qinba mountain. The development of order vegetables by the way of production and marketing docking can effectively realize the optimal of resources and the promotion of economic benefits. This study introduced the development status of the city’s order vegetables and analyzed the main problems in the production of the city’s order vegetables from the perspectives of government, order enterprises and farmers. Combined with the problems, this study put forward countermeasures and suggestions from three aspects, such as the government increasing industrial support, the order enterprises’ accelerating the construction of their own organizational capacity, and the farmers’ enhancing the awareness of production and marketing docking.
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    Spatiotemporal characteristics of coordinated development of population-resources-environment in Jiangsu province
    WANG Qing-jun, DU Xiao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 151-156.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.033
    Abstract （406）      PDF （2786KB）（134）       Save
    Through the construction of the evaluation index system of the coordinated development of population-resources-environment in Jiangsu province, the weight of the index was determined by the vertical and horizontal grading method. Combined with the calculation model of coordinated development degree, the coordinated development degree of population-resources-environment system in Jiangsu province in 2010, 2015 and 2017 were calculated, and its spatial and temporal characteristics were analyzed. The results showed that the comprehensive evaluation score and coordinated development degree of population-resources-environment system of Jiangsu province and provincial cities were on the rise, but there was still room for improvement; in addition, the coordinated development degree of population-resources-environment system of Jiangsu province had obvious regional differentiation, showing a distribution pattern of high in the south and low in the north.
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    Research on the satisfaction of housing resettlement of rural disaster immigrants： Taking the cyclone immigrants in Sheyang county as an example
    FENG Xuan-feng, LI Yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 157-160.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.034
    Abstract （371）      PDF （1498KB）（221）       Save
    Taking the cyclone immigrants in Sheyang county as the research object,based on the questionnaire survey and field investigation, this study analyzed the satisfaction degree of housing resettlement from three aspects： Housing resettlement policy, housing conditions and living environment. The results showed that the housing resettlement satisfaction of centralized resettlement was much higher than that of decentralized resettlement, mainly due to the influence of housing conditions, living environment and other factors; affected by the housing resettlement policy, there were significant differences in the housing resettlement satisfaction of different resettlement sites. On this basis, the study put forward relevant suggestions, in order to find ways to improve the satisfaction of disaster immigrants housing resettlement.
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    Performance evaluation of village assistance in Awati county of Xinjiang based on analytic hierarchy process
    ZHANG Wan-qing, WANG Hua-li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 161-165.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.035
    Abstract （338）      PDF （1555KB）（170）       Save
    According to the field investigation, this study established a performance evaluation index system of village assistance in Awati county of Xinjiang, including 5 first level indicators and 24 second level indicators, and constructed a hierarchical structure model. By using the analytic hierarchy process, it was concluded that the weight of industrial assistance and employment assistance was the highest, which was the main factor to measure the performance of village assistance in Awati county of Xinjiang. Finally, the study put forward relevant suggestions from five aspects： Strengthening the implementation of policies, optimizing the accurate identification work, strengthening the joint force between industry and employment, maintaining the sustainability of the effect of village assistance, and improving the quality of the cadre team of village assistance.
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    The system construction of French environmental basic database and its enlightenment to China
    FEI Meng-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 166-170.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.036
    Abstract （374）      PDF （1505KB）（171）       Save
    Big data has been applied and developed rapidly in the process of promoting the modernization of national ecological environment governance system and governance capacity. The construction of environmental basic database has become one of the six main directions in the construction of digital China. France has specially stipulated the environmental basic database system in the form of legislation, including the basic framework, establishment and network services, information disclosure and sharing mechanism, which enlightened China to establish the unified environmental basic information standard, refer to the special competent department, promote cooperation with third-party commercial institutions and data resource sharing, and build open public services platform.
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    Research on the incentive mechanism of village cadres under incomplete contract
    WANG Ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 171-175.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.037
    Abstract （431）      PDF （1524KB）（152）       Save
    This research introduced the game theory of economics into the study of incentive mechanism of village cadres, using the principal-agent theory as the theoretical tools and logic support, using incomplete contract as the core concept and research condition, analyzing the behavior logic of village cadres, to reshape the incentive system of village cadres as the main line, put forward the countermeasures and suggestion to avoid the deviation of policy implementation in rural governance.
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    Impactions of economic policy uncertainty and swine fever on pork price
    ZHANG Lian, YUAN Yong-sheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 176-179.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.038
    Abstract （373）      PDF （1863KB）（264）       Save
    On the basis of relevant research, this study focused on the comprehensive impact of economic policy uncertainty and swine fever on pork price, and made an empirical analysis on China’s pork price from 2009 to 2019 by using deterministic factor decomposition and logarithmic multiple regression model. The results showed that, China’s pork demand showing a seasonal cyclical change, which had a seasonal impact on pork price; the economic policy uncertainty and swine fever will increase the supply gap and impact on pork price.
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    Characteristic analysis and prospect of selenium and tourism integration in Enshi prefecture
    WANG Shi-ling, CHEN Pu-liang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 180-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.039
    Abstract （395）      PDF （1498KB）（295）       Save
    Taking Enshi prefecture as a sample, this study introduced the resource endowment and industry development status of Enshi prefecture from two dimensions of selenium and tourism, the theoretical basis of selenium and tourism integration and its application in Enshi prefecture were expounded. On this basis, further suggestions were put forward to promote the integration of selenium and tourism, promote the development of local economy, create characteristic growth pole in Enshi prefecture.
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    Research on the development of China's national central cities
    ZONG Ya-fei, CAO Yue-e, GU Yun-zhi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 184-188.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.040
    Abstract （356）      PDF （2673KB）（222）       Save
    National central cities were not only the leaders of the whole country’s economy development, but also an important support point for participating in global economy trade and cooperative division of labor. The establishment of national central cities can promote the overall development of regional economy and realize the integration of regional economy development. Taking 16 cities as the research objects, this study analyzed the advantage dimensions of each city in the development status under the six dimension index system. The results showed that Beijing, Shanghai, Guangzhou and Chongqing were the national central cities in the four directions of north, east, south and west, and their leading position in economy development was obvious. The economy agglomeration degree of national central cities was obvious, but the effectiveness of environmental governance need to be improved, and scientific and technological innovation need to be strengthened.
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    Research on the high quality development path of global tourism under the background of culture and tourism integration：Taking Nanxun district of Huzhou city as an example
    XIONG You-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 189-192.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.041
    Abstract （493）      PDF （1499KB）（353）       Save
    Through the cross-border and cross-regional allocation and integration of culture and tourism resources and elements, promoting the comprehensive optimization and improvement of tourism destination's functional efficiency and functional types was the key and difficult point of global tourism. Nanxun district of Huzhou city had gradually improved the global tourism innovation platform, the whole industry chain, and the brand effect. It had a good practical foundation and first-mover advantages. It was necessary to update the concept of global tourism development, optimize the functional pattern of global tourism, develop the characteristic products of global tourism, and optimize the operation environment of global tourism, so as to realize the high quality development of global tourism under the background of culture and tourism integration.
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    Research on satisfaction of rural tourists in Shanshan county based on perceived value
    GAO Ya, YANG Li-min, YANG Hai-bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (6): 193-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.06.042
    Abstract （427）      PDF （2179KB）（378）       Save
    On the basis of combing the relevant literature, based on the analysis of the relevant data of rural tourism tourists in Shanshan county, a structural equation model of the perceived value of rural tourism, tourist satisfaction and tourist loyalty is constructed, and an empirical study is carried out. The results show that environmental perception, infrastructure perception, and public service perception in rural tourism in Shanshan county have a significant or extremely significant positive impact on tourist satisfaction, and tourist satisfaction also has a significant positive impact on tourist loyalty. Tourists' perceived value indirectly positively affects loyalty through satisfaction. The influence path of each variable is not the same. Based on this, starting from the perceived value of rural tourism, suggestions are made for the development of rural tourism in Shanshan county.
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    Research progress on farmland eco-stoichiometry
    YE Ying, ZHAO Kao-cheng, MA Jun, ZHUANG Heng-yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 5-9.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.001
    Abstract （416）      PDF （1513KB）（302）       Save
    Ecological stoichiometry studies the dynamic balance between energy and multiple chemical elements （mainly C, N, P） and analyzes the impact of this balance on ecosystems. Those have been one of global research hotspots. However, there are few study articles on agro-ecological stoichiometry. The research progress in three aspects of farmland soil ecological stoichiometry, crop ecological stoichiometry, and the correlation between soil and crop ecological stoichiometry were reviewed, in order to provide reference for the related research of farmland ecological stoichiometry.
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    Research progress on degradation of residual amide herbicides
    WANG Xin, HOU Jia-wen, LIU Wen-rui, BAO Jia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 10-14.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.002
    Abstract （432）      PDF （1991KB）（239）       Save
    Amide herbicides are widely used in modern agricultural production because of their high efficiency, high selectivity, broad spectrum, low price and convenient application.However, due to its easy migration and enrichment in the environment, it has caused considerable harm to the ecological environment and human health. Therefore, the removal of residual herbicides in the soil is a current research focus.In this paper, the degradation modes, microbial groups and degradation pathways of amide herbicides were reviewed. The existing problems of herbicide pollution remediation were summarized, and the future was prospected, which provided a theoretical basis for the application of amide herbicides in the remediation of environmental pollution.
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    Analysis of rainstorm and its atmospheric circulation characteristics in high station and its surrounding stations in Anhui province
    DING Cong-hui, QIU Xue-xing, YANG Zu-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 15-23.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.003
    Abstract （424）      PDF （11025KB）（50）       Save
    By using the daily precipitation data of Huang mountain station, Jiuhua mountain station （high stations） and surrounding stations in Anhui province in recent years, the precipitation characteristics and wind field distribution of high stations and surrounding stations were statistically analyzed, and then using the empirical orthogonal function method （EOF） to analyze the height field characteristics of heavy rain in Anhui province. The results showed that the precipitation indices of high stations were higher than that of surrounding stations, most of the precipitation was from June to August, the average annual rainfall （rainfall days） of the Huang mountain station and Jiuhua mountain station were 2 290.3 mm （197.7 d） and 2 077.6 mm（187.7 d） respectively, the average annual heavy rainfall intensities （storm days） were 83.3 mm/d （8.5 d） and 79.6 mm/d （7.7 d） respectively, the main impact of the heavy rain at the high stations was 700 hPa westerly wind, the terrain had an impact on the precipitation and played a role of rainfall increase within a certain height. The EOF analysis was performed on the mean field of 500 hPa and 850 hPa altitude circulation. The first modes of 500 hPa in Huang mountain and Jiuhua mountain were mainly zonal and meridional, and the first mode of 850 hPa were all in meridional. The 500 hPa and 850 hPa circulation had a greater impact on the heavy rains of Huang mountain and Jiuhua mountain respectively. Therefore, by exploring the characteristics of precipitation and atmospheric circulation at the high station and surrounding stations, it was expected to provide scientific guidance for the precipitation forecast in the mountainous area.
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    Analysis of a sandstorm weather process in the eastern Hexi corridor and its impact on agriculture
    SUN Zhan-feng, LI Ling-ping, LIU Ming-chun, ZENG Ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 24-29.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.004
    Abstract （440）      PDF （7853KB）（182）       Save
    According to the hourly observation data, MICAPS data, and NECP/NCAR global reanalysis data from the Liangzhou, Minqin and Yongchang observatory, Gansu province, the small-scale sandstorm weather process that occurred in the eastern part of the Hexi corridor on May 18, 2018 has been analyzed. The results showed that, the early climatic background such as drought, low rainfall and high temperature and the positive helicity before the sandstorm provided abundant dust for the sandstorm. The small trough at the bottom of the 500 hPa cold trough, the weak cold advection at 700 hPa and the northward cold front were the main reasons for the occurrence of the sandstorm. The rapid increase and decrease of the upper-level jet stream and the continuous maintenance of the 200 hPa jet stream caused the sandstorm to occur quickly and end rapidly, while the extremely dry and unstable stratification, as well as the huge temperature gradients at high and low altitudes promoted the transportation of momentum at high altitudes, and increased the wind power of horizontal direction, which induced the sandstorm and it caused certain harm to facility agriculture and adverse effects on the growth of crops.
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    Evaluation of rice fertilization status in typical areas of integrated rice-crayfish mode in Hubei province
    PENG Cheng-lin, YUAN Jia-fu, MA Chao-hong, YANG Xiao-hong, SI Guo-han, LI Jin-hua, LIU Wei, XIE Yuan-yuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 30-33.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.005
    Abstract （445）      PDF （1520KB）（201）       Save
    The present situation of rice fertilization in Qianjiang city, a typical area of integrated rice-crayfish mode in Hubei province, was comprehensively analyzed and evaluated by means of sampling survey. The results showed that the average application rates of nitrogen （N）, phosphorus （P2O5） and potassium （K2O） on rice （Oryza sativa L.） were 135.5 kg/hm2, 59.5 kg/hm2 and 68.5 kg/hm2, respectively, which decreased by 27.4%, 34.2% and 32.0% compared with the base year, respectively. The application rates of N, P and K decreased by 8.0%, 12.5% and 9.6% compared with the previous year in the first five years of integrated rice-crayfish mode. Compared with the fifth year, the application rates of nitrogen, phosphorus and potassium decreased by 6.6%, 21.6% and 13.1% respectively in the sixth year and above, and 39.0%, 60.2% and 48.1% respectively compared with the base year. About half of the nitrogen, almost all of the phosphorus and most of the potassium in the rice shrimp intercropping model were applied as base fertilizer. With the extension of the integrated rice-crayfish mode, the proportion of total phosphorus and total potassium to total nitrogen also decreased. 72.5% to 82.1% of the farmers about integrated rice-crayfish mode chosed the method of one-time base fertilizer plus one tiller fertilizer, which was higher than that in the base year. 7.1% to 27.5% of farmers chosed to apply basal, tiller and spike fertilizer once, which was lower than 40.0% of the base year. 10.7% of the farmers about integrated rice-crayfish mode did not apply basic fertilizer, only tiller fertilizer and panicle fertilizer.
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    Isolation and identification of high efficient potassium-solubilizing bacteria and application effects on tobacco cultivation
    GAO Jia-ming, ZHANG Jian-xing, SHE Meng-lin, WANG Dong, CHEN Shou-wen, MA Xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 34-39.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.006
    Abstract （583）      PDF （1753KB）（362）       Save
    To increase the solubilizing potassium mineral and activating soil potassium, a potassium-solubilizing bacteria NGW1 by screening was obtained, which identified as Bacillus mucilaginosus. As experiment treatments, strain NGW1 and muscovite were applied to tobacoo potting. The maximum colonization number of strain was 5.33×105 CFU/g. After transplanting 60 d, experiment treatments significantly increased the tobacco heigh, maximum leaf length, maximum leaf width, maximum stem girth, and also increased slowly available potassium content and rapidly available potassium. Experiment treatments significantly increased the potassium contents of tobacco leaves. After transplanting 60 d, potassium content of lower leaves was 1.57%, increasing by 9.80% than CK, potassium content of upper and middle leaves was 1.90%, increasing by 27.50% than CK. The above data showed that trial treatment can improve the utilization rate of potassium fertilizer and production, output value of tobacoo leaves.
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    Occurrence regularity of heat damage of high temperature of early rice planting in Guigang city in recent 60 years
    MO Shen-ping, MENG Xiao-han, XU Yi-xin, LIANG Hong, TAN Meng-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 40-46.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.007
    Abstract （355）      PDF （2984KB）（155）       Save
    High temperature is one of the extreme weathers that have attracted attention now. Characteristic analysis of the impact of high temperature during the growth of early rice in Guigang city, Guangxi was carried out. Finding out the basic law of its weather process is of great significance for the reasonable arrangement of early rice production and protection against high temperature heat damage. The meteorological observation data from 1960 to 2019 and relevant statistical data of the agricultural department at three national ground-level meteorological stations （Guigang, Guiping, Pingnan） in Guigang city was analyzed. To find out interannual law of the occurrence of high temperature heat damage during the early rice planting period in Guigang. The results showed that the general trend of the degree of heat damage caused by high temperature in early rice in Guigang city was a spatial difference that gradually strengthens from west to east. The interannual change of high temperature heat damage presents a “V” shape trend, and the high point of the “V” trend was gradually rising to a serious situation. The interannual occurrence rate was 66.7%, with an average occurrence of 1.1 times/a and a total number of days of 5 days/a. The extreme high-temperature weather in the study area experienced periodic oscillations was 21 d and 42 d, which experienced two obvious phase changes. Among them, the high temperature process in 2018 occurred frequently and throughout the entire early rice planting period.
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    Soil aggregate composition and organic carbon particle size distribution of typical plant communities in inland salt marsh wetland
    SHANG Xin-yi, JU Tian-zhen, WANG Ji-wei, ZHANG Guo-qiang, MA Chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 47-52.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.008
    Abstract （439）      PDF （3230KB）（277）       Save
    Two typical plant communities, Suaeda salsa and Salicornia europaea, in Qinwangchuan National Wetland Park, new district of Lanzhou city were selected as the research objects,and the composition of soil aggregates and the particle size distribution of organic carbon under the two plant communities were analyzed. The results showed that the contents of soil aggregates in the two plant communities were significantly different, and the aggregates in the soil aggregates in the 0~30 cm soil layer were mainly >2 mm and 0.5~1 mm in particle size. The organic carbon content in the soil of Suaeda salsa and Salicornia europaea showed a V-shaped distribution in the soil layer of 0~30 cm. The content of organic carbon in >2 mm and <0.25 mm particle size aggregates in the two communities was highe, but their average contribution to organic carbon was small. Although the organic carbon in the aggregates was low in the 0.5~1 mm particle sizes, but their average contribution rate was as high as 27.74%. Which indicated that the soil organic carbon was protected by >2 mm and <0.25 mm grain size aggregates in inland salt marshes. Soil organic carbon content was positively correlated with >2 mm, 1~2 mm and 0.5~1 mm aggregates （P<0.05）. In conclusion, the carbon sequestration capacity of Salicornia europaea community is stronger. Increasing the content of >2 mm particle size aggregates in soil can effectively enhance the soil's corrosion resistance. The aggregates with particle size <0.25 mm can hold more stable carbon sources, reduce soil erosion, and improve the carbon sequestration capacity of inland salt marsh wetlands.
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    Effects of temperature and frozen-thawed on cadmium adsorption enhancement by adding biochar in degraded soil
    XIA Kun, LI Yun-gui, GONG Meng-sha, WU Cai-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 53-60.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.009
    Abstract （375）      PDF （2790KB）（202）       Save
    Cd and degraded soils from northwestern Sichuan province were selected to investigate the effects of temperature and frozen-thawed adsorption enhancement by adding biochar in degraded soil which is of great significance on the application of biochar in alpine regions. The adsorption enhancement by biochar adding in degraded soil was found to be less affected by temperature. However, the influence of frozen-thawed on adsorption enhancement by biochar adding in degraded soil could not be ignored, which was related to the degree of soil degradation and the initial concentration of Cd. At low Cd concentrations, the Cd adsorption enhancement of biochar on mildly and moderately degraded soils notably decreased after frozen-thawed while the Cd adsorption enhancement effect on severely degraded soils was slightly improved. The key factor affecting the Cd adsorption enhancement of biochar on degraded soil was the degree of soil degradation, the adsorption enhancement would be higher as soil degradation became more serious. In the current study, biochar was demonstated which can effectively strengthen the adsorption and sequestration of heavy metals in degraded soils in alpine regions, reducing the environmental risk in migration and plant uptake of heavy metals.
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    Vertical characteristics of soil physical and chemical properties in China-Singapore Tianjin Eco-city
    ZHOU Guo-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 61-73.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.010
    Abstract （435）      PDF （15524KB）（69）       Save
    Soil samples were collected and tested for total salt content, sodium and potassium ions, pH value, available phosphorus and available potassium in China-Singapore Tianjin Eco-city. Interpolation maps of physical and chemical properties of various soil depths were drawn to analyze the vertical distribution characteristics of soil physical and chemical properties. The results showed that the indexes changed regularly in different depth soil layers, mainly salt, sodium and potassium ions, chloride ion showed surface accumulation phenomenon; available phosphorus and available potassium were at a higher level, also showed surface accumulation characteristics.
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    Research on environmental protection under the background of village tourism development in Tibetan ethnic areas of Sichuan province：Taking Shenzuo village in Aba county as an example
    XUE Meng-chun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 74-76.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.011
    Abstract （343）      PDF （1473KB）（448）       Save
    Taking Shenzuo village, Aba county, Aba prefecture, Sichuan province as an example, using in-depth interviews and observation methods, we understand that the destroyed ecological environment of Shenzuo village has been restored by routine method, the influence of religion, andinfluence of traditional custom. The ecological environment reproduces the beauty of the original “Xanadu” and realizes the benign interaction between tourism development and environmental protection.
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    Preliminary study on Polygonatum sibiricum interplanting techniques of different tree species under forest
    CHEN Feng-lei, MENG De-yu, WANG Hong-jun, LI Cai-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 77-79.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.012
    Abstract （602）      PDF （1514KB）（251）       Save
    In order to excavate Polygonatum sibiricum resources in Wudang Mountain region, create characteristic industries, make use of the rich forest fruit and wood resources in this region to develop undergrowth economy, and improve land income per unit area, the interplanting experiment of P. sibiricum under different species of trees was carried out. The results showed that, the survival rate, growth potential, disease and yield of P. sibiricum were significantly different under different species of trees, it was found that under the forest of deciduous trees, such as flowering oak, the growth was the best, the disease was less, and the yield was higher.
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    Study on creeping properties of Eucalyptus dunnii
    LUO Yi-han, ZHANG Rong-bo, LIANG Jian-xin, LU Cui-xiang, DIAO Hai-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 80-83.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.013
    Abstract （395）      PDF （1824KB）（217）       Save
    The experiment was carried out to test the bending creep characteristic of Eucalyptus dunnii by electrical measuring method and tried to give an evaluation method. The experiment results showed that, both the ability to withstand instantaneous elastic deformation and sustained viscosity deformation decreased with increasing stress; The ability to withstand delayed elastic deformation was strongest when the bending stress was 40%σb; The ability to withstand creep deformation in radial was stronger than in tangential for E. dunnii under the same stress. E. dunnii had a good ability to withstand creep through the preliminary assessment.
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    Effects of different light quality on adventitious bud induction of peony Wulongpengsheng
    GUO Li, ZHU Fei-xue, KOU Yan-ling, JIA Wen-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 84-86.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.014
    Abstract （415）      PDF （2219KB）（253）       Save
    Using peony varieties Wulongpengsheng lateral buds as the explants, peony Wulongpengsheng adventitious buds were treated by LED light red, white, blue, green and yellow five kinds of light, to determine the number of adventitious bud, height, growth potential, callus, et al, and study the effects of different light quality on adventitious bud induction. The results showed that, the proliferation rate of peony adventitious bud induction was the highest under white light, and red light was better than other light quality in monochromatic light, with the proliferation rate of 695.05%. The influence of different light quality on adventitious bud height was red light >yellow light >green light > white light >blue light; The adventitious bud growth potential of peony under white light is better than other light qualities. Red and blue light promote callus growth. The effects of different light quality on the adventitious bud induction of peony were studied in order to provide data reference and theoretical basis for the peony tissue culture special LED light source research and development.
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    Study on the ornamental value of garden plants of Viburnum in Hubei
    LI Shuang-long, LI Chun-lin, XIANG Wei, CHEN Wei, DUN Chun-yao, HUANG Sheng, CHEN Bei-bei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 87-89.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.015
    Abstract （484）      PDF （1515KB）（308）       Save
    There are more than 200 species of Viburnum on the earth, which are distributed in subtropical and temperate regions of the northern hemisphere. In China, according to the statistics, there are 143 classifications, which are distributed in all provinces of the country. The plants of Viburnum have beautiful tree shape and various flowers and leaves, and their fruit color changes a lot. They have strong environmental adaptability and are also excellent ornamental plant resources. This paper will mainly analyze the ornamental value of the genus Viburnum.
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    Study on the diversity of medicinal plants in Dunhuang's Tibetan medical literature
    LI Jia-tai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 90-94.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.016
    Abstract （393）      PDF （1510KB）（244）       Save
    Using literature research method, the preliminary study on the medicinal plant species and their medicinal efficacy mentioned in Changjuan, a Tibetan medicine collection in Dunhuang was carried out. The results showed that there are 79 species of traditional Chinese medicinal plants with 41 families, of which 63.4% are single family plants. The paper provides a statistical analysis of the geographical distribution of these plants and the medicinal parts.
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    Survey on edible（medicinal） macrofungi resources in Jinxiu estuary protection station
    SONG Dan, HAN Lu, YANG Hong, NA Xi-xue, NING Xiao-qing, QIN Guo-le
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 95-98.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.017
    Abstract （356）      PDF （1518KB）（318）       Save
    By the combination of sample line and tap-and-check method, macro and micro-characteristic scant, the family, genus and species was classified, and the edible（medicinal） macrofungi resources in Jinxiu estuary protection station was sorted out. The results showed that, the large edible fungus belonged to 23 genus 37 species, of which 31 species were edible macrofungi, six kinds of edible- medicinal macrofungi, and the advantage belonged to Russula. The investigation of the edible（medicinal） macrofungi provides references for the protection, development and sustainable utilization of edible （medicinal） macrofungi resources in Jinxiu estuary protection station.
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    Effects of different media components on the growth of Mycoplasma bovis
    YAN Ming-shuai, XU Ye-fen, ZHANG Feng-xi, SUOLANG Si-zhu, NIU Jia-qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 99-102.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.018
    Abstract （416）      PDF （1543KB）（328）       Save
    In order to understand the effects of different medium components on the growth of Mycoplasma bovis, the experiment selected 3 animal serums and 4 manufacturers' agars, and prepared 9 liquid media in sequence at 5%, 10%, and 15% serum concentrations. The growth test of Mycoplasma bovis was carried out; On this basis, four solid mediums were prepared sequentially with agar from 4 manufacturers, and the growth test of Mycoplasma bovis was carried out respectively. Through the determination of the OD value of the liquid medium and the performance of the solid medium index evaluation to judge the growth status of Mycoplasma bovis. The results show that Mycoplasma bovis can grow in 9 kinds of liquid media, and its OD value reaches the maximum when it is cultured for 60 h; When the serum concentration is the same,the OD value of the medium supplemented with horse serum is the same as that of the supplemented porcine serum. The OD value of the fetal bovine serum medium is significantly different （P<0.05）; When the same type of serum is added, the OD value of each medium supplemented with pig serum or fetal bovine serum is not significantly different （P>0.05）, and compared with the OD value of each medium supplemented with horse serum, the addition amount of 10% and 15% is significantly different from 5% （P<0.05）, while the difference between 10% and 15% is not significant （P>0.05）. The index performance scores of solid media are 9 points （BD company）, 7 points （a company in Hong Kong）, 5 points （a company in Shanghai）, and 6 points （a company in Chengdu）. It indicates that the liquid medium supplemented with 10% horse serum is most suitable for the growth of Mycoplasma bovis. The solid medium should be based on this liquid medium, and the solid medium prepared by adding BD agar is the most suitable for the growth of Mycoplasma bovis.
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    Identification of two milk proteins of sow by mass spectrometry
    YUE An-qi, LUO Hui-hui, HUANG Wei-ping, CHEN Deng-quan, JIN Su-yu, HUANG Lin, ZHENG Yu-cai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 103-105.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.019
    Abstract （363）      PDF （1835KB）（180）       Save
    In order to identify several protein components of porcine milk, whole milk samples of large white pigs （n=8） were collected, and skim milk was obtained by centrifugation. SDS-PAGE was employed to separate skim milk proteins, and tree protein bands on SDS-gel were cut off, followed by treatments of reductive alkylation and trypsin digestion. The resulting peptides were loaded on LC-MS/MS to identify the three proteins with low molecular weight. Two proteins including β-lactoglobulin （β-LG） and whey acidic protein （WAP） were identified successfully. WAP may probably affect porcine milk functions.
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    Quality standard of compound BuQi oral liquid
    WANG Ye-zi, ZHANG Ying, ZHOU Qi, GAN Guo-ping, TAN Zhong-chuan, ZHANG Yan-miao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 106-109.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.020
    Abstract （393）      PDF （3063KB）（254）       Save
    Astragali radix praeparata cum melle, ginseng radix et rhizoma, and cuscutae semen were identified qualitatively by TLC in compound BuQi oral liquid. The content of astragaloside IV in compound BuQi oral liquid was determined by HPLC. The results showed that the TLC of astragali radix praeparata cum melle, ginseng radix et rhizoma, and cuscutae semen were good in the separation degree. There was a good linear relationship between the logarithm （X） of the injection amount and the logarithm （Y） of the peak area within the range of 1.402~14.024 μg. The regression equation was Y=1.673 5X+1.926 3,r=0.999 2（n= 5）. The average recovery rate was 99.40% and the RSD was 4.15%（n=6）. The method established in this study is specific, simple, fast and reliable, and can be used for quality control of compound BuQi oral liquid.
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    Determination of mineral elements in mulberry and mulberry leaves in Lintong,Shaanxi province by flame atomic absorption spectrometry
    WANG Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 110-112.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.021
    Abstract （417）      PDF （1518KB）（261）       Save
    The sample was digested with HNO3-HCIO4 mixed acid, and the contents of Fe, Mg, Ca, Mn, Zn and Cu in mulberry and mulberry leaves in Lintong county of Shaanxi province were determined by flame atomic absorption spectrophotometry. Meanwhile, the precision and standard addition recovery tests were conducted, and the contents of mineral elements in mulberry and mulberry leaves were compared and analyzed. The experimental results show that both mulberry and mulberry leaves contain rich trace elements, and the order of mineral element content in mulberry and mulberry leaves are Ca>Mg>Fe>Mn>Zn>Cu, in order to provide theoretical basis for deep processing, nutrition, medical research and development and utilization of mulberry and mulberry leaves.
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    Interaction between catechin and chitosan oligosaccharide with superior synergistic antibacterial activity
    CHEN Zi-ting, TANG Shi-miao, TAN Jiang-ying, WU Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 113-115.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.022
    Abstract （511）      PDF （2865KB）（224）       Save
    The effect of catechin mixed with chitosan oligosaccharide on Escherichia coli BNCC 185254 was determined. The results showed that the bacteriostatic effect was best when the mixture was 1∶4 （catechin∶chitosan oligosaccharide, W/W）. Furthermore, the structural characteristics of complex compounds were analyzed from the perspective of spectral changes and crystal patterns, and the results showed that the smaller molecular size of complex compounds might play an important role in enhancing the antibacterial activity. The mixture of catechin and chitosan oligosaccharide may be a more effective natural bacteriostat.
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    Study on high efficient propagation system of Actinidia arguta
    LYU Hai-yan, LI Da-wei, FEI Zao-xia, ZHONG Cai-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 116-119.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.023
    Abstract （415）      PDF （3016KB）（279）       Save
    The effects of different concentrations of 6-BA and NAA on bud induction, bud proliferation and rooting of stem section with axillary buds of Actinidia arguta were studied in this research. The stem section with axillary buds were choose as explants, which were induced to sterile seedlings with the best bud inducing medium MS+1.0 mg/L 6-BA+0.8 mg/L NAA. The germination rate from axillary buds of Actinidia arguta mizao No.1 and Actinidia arguta mizao No.2 were 95.8% and 97.5% respectively. Sterile seedlings of mizao No.1 and mizao No.2 were cut into stems with 2~3 leaves, which were inoculated on the bud proliferation medium （MS+1.0 mg/L 6-BA+0.25 mg/L NAA）. The growth coefficient of proliferation buds of mizao No.1 and mizao No.2 during a 45-day cycle are 4.3 and 6.3, respectively. The best rooting medium was 1/2MS + 0.5 mg/L IBA, which made 100% rooting rate. The survival rate of rooting tissue culture seedlings can reach more than 95% three months after transplanting.
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    Construction of the thermostable xylanase whole-cell biocatalyst based on yeast cell surface display technology and enzymatic analyses
    DENG Xiang-lian, LIU Qing-yi, XIONG Hai-rong, ZHANG Li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 120-125.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.024
    Abstract （356）      PDF （4329KB）（263）       Save
    Xylanase is an important industrial enzyme with great potential for applications in feed, paper, textiles, food and other fields. In this study, the xylanase DSB was displayed on the cell surface of pichia pastoris using the cell wall protein Gcw61 as an anchor protein. The highest activity of DSB whole-cell biocatalyst reached 13 510 U/g by shake-flask fermentation. Then the enzymatic properties of DSB whole-cell biocatalyst and free enzyme were determined. The results showed that the optimum reaction temperature of both enzymes was 65 ℃ and the optimum reaction pH was 6.5. But the thermal stability of DSB whole-cell biocatalyst was better than free xylanase under high temperature condition 70 ℃ and acidic condition pH 3.0. In addition, the DSB whole-cell biocatalyst could maintain high enzyme activity and was more stable than free xylanase under high concentration of NaCl, methanol and various metal ions （Na+, Ca2+, Ni2+）.
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    Determine full-length coding sequence of matK gene and its coding products in Tetrastigma hemsleyanum
    WU Hao, ZHOU Lei, YUAN Li-xia, SUN Chong-lu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 126-129.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.025
    Abstract （377）      PDF （4213KB）（119）       Save
    The matK gene of Tetrastigma hemsleyanum was studied, we study the full coding sequence and the amino acid sequence characteristics of its products using bioinformatics analysis, and the molecular phylogenetic tree of 14 species of celastigma hemsleyanum was constructed. The results showed that the matK gene of Tetrastigma hemsleyanum was 969 bp in size with six open reading frames; it was a hydrophilic protein; the signal peptide splicing site was predicted to be between 64~65 amino acids; the subcellular localization protein only existed in chloroplast; the genetic relationship between Tetrastigma hemsleyanum and Tetrastigma obovatum was the closest, the genetic relationship between Tetrastigma hemsleyanum and Tetrastigma obtectum was the farthest.
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    Research and application of digital construction of small pump station based on OneNET platform
    CHEN Hao, CHEN Xing, LIU Fang, MA Peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 130-134.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.026
    Abstract （353）      PDF （2665KB）（324）       Save
    Digital construction is a key step in the intelligent construction of small pump stations. It can help managers grasp the running status of small pump stations in real time, and timely check the voltage and current of pump motors, channel level, pipeline pressure and other sensor equipment to collect small pumps. The OneNET platform is a free and open mass platform operated by China Mobile. The platform's own operating system is very complete, safe and reliable. It provides developers with device-side SDK, a large amount of data stream storage space, and password protection for communication transmission channels. Safe protection measures are fully in line with the research and application of digital construction. The main function of OneNET platform in the digital construction of small pump stations is to store the data of small pump stations and to issue control commands.
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    Recognition of ophiopogon japonicus disease based on image feature fusion
    YANG Tao, LEI Jin, ZHU Hao-rui, HU Qin-yun, LONG Bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 135-138.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.027
    Abstract （427）      PDF （3386KB）（290）       Save
    The images of three diseases of black spot, anthracnose and leaf blight of Sichuan wheat and winter leaves were taken the research object, the bimodal method, Otsu threshold segmentation method and K-means clustering segmentation algorithm were compared and analyzed on the image of ophiopogon japonicus. The segmentation effect showed that the K-means clustering algorithm combined with the mathematical morphology processing method can meet the segmentation requirements; then, the color, shape and texture information of the lesion image was extracted into the lesion feature vector; then, the variance analysis and principal component analysis method was used to eliminate the characteristic parameters with poor disease characterization ability and reduce the eigenvector dimension to 10 dimensions. Finally, the classifier for disease identification was designed by the support vector machine, which recognition rate reached 90% after the experiment. The method has the advantages of low cost, simple algorithm and high efficiency, and basically meets the requirements of practical applications.
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    A hybrid e-government framework based on cloud computing and service-oriented architecture
    ZHANG Hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 139-144.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.028
    Abstract （358）      PDF （2465KB）（227）       Save
    In order to solve the problems of government budget reduction, service demand increase, limited human resources and the change of scalability demand, this paper proposed an E-government architecture based on cloud computing and service-oriented architecture, so that the masses and enterprises can easily and efficiently obtain government related services without the limitation of time and region. In order to verify the usefulness of the proposed framework, Cloudsim simulator was used. The results show that the framework provided a powerful framework for E-government, provided the reusability and discoverability of government services, and provided solutions for some cloud computing problems. It provides more choices for the construction of government E-government to help implement and improve E-government and create new employment opportunities.
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    Classification method of kiwifruit based on surface defect recognition
    YANG Tao, MA Jing-jing, LEI Jin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 145-148.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.029
    Abstract （365）      PDF （2153KB）（235）       Save
    Aiming at the problems of single classification method and high classification cost of kiwifruit in China, this paper proposes a classification method based on kiwifruit surface defects. A set of kiwifruit image acquisition system is built. The K-means clustering segmentation algorithm was used to segment the surface defects, and then the color contrast was used to determine whether it was a residual fruit. Then, the shape features of normal fruit were extracted and SVM classifier was designed to further determine its grade. This method has the advantages of low cost, simple algorithm and high efficiency, which opens a new way for fruit classification, and is of great significance to promote the development of fruit classification industry in China and enhance international competitiveness.
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    The influence and reflection of elite capture in basic aging service industry
    QIU Kai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 149-154.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.030
    Abstract （355）      PDF （1540KB）（272）       Save
    On the basis of defining the connotation of basic pension service industry, by introducing the theory of elite capture and combining with field research, this study identified elite capture phenomena in four kinds of allocation processes of the resource elements of basic pension service industry, including the public construction and private operation of elder care institutions, the procurement of aging service facilities, the government's financing of outsourcing aging services, and the bidding of aging service related topics. It is found that elite capturewill lead to unsatisfactory effect of government projects, impact excellent pension service enterprises, hinder the orderly development of pension service industry ,difficult to guarantee the quality of pension service, and aggravate the social injustice. This study reflects on the aspects of the government responsibility orientation, the procurement procedure, the quality evaluation and supervision mechanism, and the collusion between power holders and resource captors.
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    Research on enterprise value evaluation of shared economy based on number of users：Taking Uber as an example
    PENG Wu-yuan, LI Na
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 155-160.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.031
    Abstract （462）      PDF （1541KB）（456）       Save
    Based on the problem of virtual high valuation of shared economy enterprises, this paper analyzed the current situation of valuation, found out the reasons behind the chaos, tried to interpret from the perspective of stakeholders, and selected the Metcalfe model based on the number of users to value Uber, the results showed that the valuation level was much lower than the actual market value. It also shows that the number of users is not the decisive indicator of enterprise valuation, and the reasonable valuation of enterprises also need to refer to the current life cycle of the enterprise, business model, profitability, development prospects and other factors.
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    Study on agricultural production efficiency in Xinjiang based on data envelopment model
    XU Kang-ning, YU Xiao-ling
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 161-165.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.032
    Abstract （329）      PDF （1540KB）（212）       Save
    Aiming at the current agricultural production efficiency and its problems in Xinjiang, the data envelopment analysis （DEA） was used to calculate the agricultural production efficiency of 11 states in Xinjiang Uygur autonomous region. The results showed that the comprehensive technical efficiency, pure technical efficiency and scale efficiency of Turpan city, Bayingol Mongolian autonomous prefecture, Aksu city and Kashgar region were all 1.000. DEA was effective and agricultural the allocation of production factors was perfect. The pure technical efficiency of Ili Kazak autonomous prefecture, Tarbagatay region, Urumqi city and Karamay city was 1.000, the other efficiency values were less than 1.000, DEA had weak effectiveness, the DEA values of Hami city, Altay region and Hotan region were invalid, the agricultural production efficiency was low, the technical use efficiency was not mature, and the proportion of input and output value was not consistent. Therefore, the corresponding suggestions are put forward in agricultural division and cooperation, coordinated development, scientific and technological innovation, and factor circulation.
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    Study on spatial distribution characteristics of service industry in western urban area based on DBSCAN clustering：A case study of Chengxi district, Xining city
    ZHU Li, LI Xiao-ling, WANG Lu, YANG Cheng-zhong, XIE Fen-fen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 166-174.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.033
    Abstract （363）      PDF （8449KB）（161）       Save
    Based on the POI data of the service industry in Chengxi district of Xining city, this study analyzed the DBSCAN clustering results of the overall and sub industry POI data of the service industry in Chengxi district, explored the spatial layout structure and clustering characteristics of the service industry in Chengxi district, and maked a comparative analysis of the layout of the service industry in different regions. The results show that the service industry of Chengxi district of Xining city generally presents the spatial distribution characteristics of “two points and one line”, with Haihu Wanda Plaza and Limeng Commercial Pedestrian Street as the two central points, mainly distributes around the “two points” line, two points are the central agglomeration, and the difference between north and south is obvious, and the proportion of traditional service industry is too large. The distribution of boundary points and noise points is centralized and regular, which shows the potential area of service industry accumulation in Chengxi district. Although the service industry of all walks of life are affected by different factors, its agglomeration characteristics have little difference.The development level of the service industry in the Chengxi district is lower than that in the eastern and central regions, and the spatial development is unbalanced, which is significantly affected by the accessibility of transportation.
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    Research on the utilization efficiency of agricultural water resources in Yangtze river economic zone：An empirical analysis based on DEA-Malmquist model
    ZENG Xin-yun, XIE Yu-han, CHEN Wen-wen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 175-180.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.034
    Abstract （418）      PDF （1578KB）（328）       Save
    Based on the panel data of 11 provinces in the Yangtze river economic zone from 2009 to 2018, DEA-Malmquist model was used to calculate the utilization efficiency of agricultural water resources and total factor productivity. Then it revealed the dynamic change trend of agricultural water resources utilization efficiency in different periods and regions of the Yangtze river economic zone.The empirical results showed that the utilization efficiency of agricultural water resources in the Yangtze river economic zone from 2009 to 2018 presented an inverted u-shaped change with time. The utilization efficiency of agricultural water resources in the upstream area of the Yangtze river economic zone, such as Chongqing and Sichuan, was relatively high. While the utilization efficiency of agricultural water resources in the downstream area of the Yangtze river economic zone, such as Jiangsu, still had great room for improvement. According to the Malmquist TFP and its decomposition results, the utilization efficiency of agricultural water resources in the Yangtze river economic zone declined by 4.30% from 2009 to 2018. Technological change was the main factor affecting total factor productivity. Based on this, it puts forward some suggestions on increasing R&D investment, strengthening water resources management, optimizing the allocation of agricultural production resources, and enhancing regional exchanges and cooperation.
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    Study on the intergovernmental governance mechanism of rural public crisis based on EMAC model
    LI Hui-ya
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 181-185.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.035
    Abstract （304）      PDF （1517KB）（184）       Save
    With the evolution of regional integration and the superposition of the risk of factor liquidity, the characteristics of the spread of public crisis across administrative regions and functional boundaries are increasingly prominent. Rural areas, as the high incidence areas of public crisis, need to improve the emergency management capacity.This study analyzed the governments of the rural public crisis management, based on the “Emergency Management Assistance Compact” （EMAC） model of operation experience and established the inter-governmental cooperative governance mechanism of “vertical and horizontal linkage and multiple interaction” of China's grass-roots governments. It aims to provide useful suggestions for the modernization of China's crisis management system at the grassroots level.
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    Evolutional analysis on the coordinated development of population,resources and environment：A case study of Jiangsu province
    DU Xiao, WANG Qing-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 186-190.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.036
    Abstract （370）      PDF （2412KB）（187）       Save
    The coordinated development of population, resources and environment is of great significance to promote the overall high-quality development of the region. This study taked Jiangsu province as an example, then used the entropy method to measure the level of coordinated development of population, resources and environment, and further analyzed the effect of coordinated development of population, resources and environment on economic development through impulse response. The results show that the level of coordinated development of population, resources and environment in Jiangsu province is good, but there is still a gap with the highly coordinated development stage; Compared with promoting the development of a single system, promoting the overall coordinated development of population, resources and environment has a longer-term impact on economic growth. Correspondingly, some suggestions are put forward to promote the coordinated development of population, resources and environment,such as the establishment of innovative research platform of population, resources and environment, the improvement of comprehensive utilization level and utilization efficiency of resources, and the development of new energy.
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    Research on the coupling development of transportation network accessibility and urbanization in border areas of Yunnan province
    HONG Dong-fang, LUO Hua-song, QIN Jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 191-196.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.037
    Abstract （506）      PDF （1713KB）（317）       Save
    The coupling coordination model and entropy method were used to analyze the traffic network accessibility and urbanization development level of 8 states （cities） along the border of Yunnan province in 2019, and the coupling coordination degree was measured and the coordination types were divided. The results show that the accessibility coefficient of the traffic network in border states （cities） of Yunnan province is between 0.82 and 1.17, and the traffic network system needs to be further developed and improved; The comprehensive development level of urbanization is between 0.05 and 0.20, and the level of urbanization lags far behind the accessibility of transportation network. The degree of coupling coordination between transportation network and urbanization is at a medium level of development, showing obvious regional differences; According to the degree of coupling coordination, the 8 states （cities） along the border of Yunnan province are divided into 2 development categories and 5 development characteristics, and the coordinated development paths are proposed for regions with different development types.
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    The difficulties and countermeasures of the three rights division reform of homesteads from the perspective of rural revitalization
    ZHU Qiang, WANG Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (7): 197-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.07.038
    Abstract （489）      PDF （1488KB）（349）       Save
    The three rights division reform of homestead is the key to realize rural revitalization and solve the “three rural” issues. As an important change in china's rural land system, it is of great significance to revitalize rural land resources and promote rural economic development. Through combing its historical evolution process and analyzing the status quo of the use of homesteads, so as to find out the real dilemmas of the three rights division of rural homesteads, and put forward optimization suggestions on specific issues to provide reference for the comprehensive implementation of the three rights division reform.
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    Research advances in plant cyclic nucleotide-gated channels
    WANG Xin-yue, LIU Pei-yuan, YU Bing-qing, ZHANG Yan-feng, DING Bai-xiang, YAN Han-chi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 5-7.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.001
    Abstract （456）      PDF （1916KB）（385）       Save
    Cyclic nucleotides （CNMPs）may represent signal moleculesof many signaling pathways in plants. The activity of cyclic nucleotide-gated channels（CNGCs）in plant can be regulated by cyclic nucleotides, participating in plant growth and development as well as responding tovarious stresses. In this review,the molecular structural characteristics, regulation, ion selectivity and function of CNGCs in plantsare reviewed in detail. The new advances in CNGCs in plant growth and stress response is summarized. The research direction of CNGCs is also prospected in order to provide theoretical basis for the research of CNGCs in plant.
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    Research progress of mitophagy in plants
    JIANG Ya-ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 12-16.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.002
    Abstract （363）      PDF （1885KB）（182）       Save
    Mitophagy is widely found in animals, plants and yeast, playing an important role in maintaining the balance of mitochondria in cells. Compared with the research progress of mitophagy in yeast and mammals, the research of mitophagy in plants is still at an early stage. And the mechanism of mitophagy in plants and the proteins involved in autophagy are still unclear. This paper reviews the research progress of mitophagy and the regulatory mechanism of mitophagy in plants, as well as related receptors, proteases and biological functions, so as to provide reference for the research on mitophagy in plants in the future.
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    Study on the mechanized recovery of mulch film
    LI Wei, LIAO Pei-wang, YU Jia-chuan, ZHUO Dong-ling, ZHANG Ai-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 17-22.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.003
    Abstract （410）      PDF （8148KB）（151）       Save
    China has been faced with increasingly severe mulch film pollution. Currently, the primary treatment mode of film residue pollution is mechanized film recovery. It is introduced that the machines and tools for recovering residual film, the importance of plastic film quality, the storage and transportation of mechanical residual film, and the problems of resource utilization. It is expounded that the mechanized recovery of plastic film is system engineering involved the whole industrial chain of plastic film production, use, recovery, storage, transportation and resource utilization.
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    Results of cultivation density and row spacing of giant rice
    LUO Yan-ping, WEI Qiao, HOU Ling, LUO Dong-yu, LI Hong-ju, PAN Dian-jin, ZHOU Jia-hua, ZHANG Xin-lin, LUO Wen-qing, WU Ji-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 23-27.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.004
    Abstract （467）      PDF （6819KB）（285）       Save
    Through the quadratic general rotary unitized design to study the high-yield cultivation mode of giant rice Fengchao No.6,two controllable factors of cultivation density and row spacing was selected, and the temperature and light difference in the field was recorded. Analyzing the mathematical model between actual yield and two factors, it is concluded that the two-factor level configuration with a yield of more than 9 000 kg/hm2 is cultivation density 86 064~92 880 plants/hm2, row spacing 43.94~50.78 cm.
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    Breeding and cultivation techniques of new maize variety Guidan662
    HUANG Ai-hua, HUANG Kai-jian, WEI Xin-xing, MO Run-xiu, TANG Zhao-lei, ZHAI Rui-ning, ZOU Cheng-lin, WEI Hui, TAN Hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 28-31.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.005
    Abstract （682）      PDF （1452KB）（246）       Save
    Guidan 662 is a new maize variety which is bred by crossing Gui A10341 as female parent and GML906 as male parent in Maize Research Institute of Guangxi Academy of Agricultural Sciences. In 2017, the average yield of maize in Guangxi was 8 253.6 kg/hm2, which was 8.4% higher than that of the control Guidan 162. In 2018, the average yield of maize in Guangxi was 7 348.1 kg/hm2, which was 6.5% higher than that of the control Guidan 162. From 2017 to 2018, the average yields of new maize varieties were 9 616.5~9 243.0 kg/hm2 respectively, which were 18.2% and 16.6% higher than that of the local variety LVN10, it participated in maize new-variety selection trial and maize contrast test in Natha Province of Laos. In 2019, it was approved by both the Laos Crop Variety Registration （accession number：00080S） and the Crop Variety Certification Committee of Guangxi Zhuang Autonomous Region （accession number：Guishenyu 2019087）. Guidan 662 has strong disease resistance, wide adaptability and good commercial property. It is suitable for planting in all parts of Guangxi and all provinces of Laos.
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    Effect of inoculation of arbuscular mycorrhizal fungi on growth and quality of pea in subsidence area of coal mining in northern Shaanxi
    WU Qun-ying, MA Shao-peng, BI Yin-li, GAO Ya-kun, ZHOU Hui-li, ZHANG Long-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 32-35.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.006
    Abstract （360）      PDF （1483KB）（276）       Save
    In this study, arbuscular mycorrhizal fungi （AMF） were inoculated in the loess land of Zhangjiamao mining area in north Shaanxi province, and the common local legume plant pea （Pisum sativum L.） was planted to monitor its growth and quality and yield, and soil physical and chemical properties. The results showed that the root colonization rate of pea increased by 16.11 percentage points, and a good symbiotic relationship between mycorrhizal and pea could be formed. Compared with the control treatment, the plant height and SPAD of pea increased by 52.34% and 29.35% （P<0.05）, the biomass and yield of straw increased by 22.69% and 20.61%, the total nitrogen and potassium content of mycorrhizal plant increased by 12.72% and 22.19% （P<0.05）, and the total nitrogen and potassium absorption of pea plant per hectare increased by 38.74% and 51.89%, respectively. The soluble protein and sugar of pea per hectare increased by 20.09% and 47.99%, respectively. Mycorrhizal inoculation increased soil conductivity, available phosphorus, available potassium, organic matter, total potassium, total phosphorus and total nitrogen, and decreased pH, but the difference was not significant. Inoculated mycorrhiza can promote the productivity of plants in the Loess Plateau, and microbial reclamation can provide a good potential for the improvement of productivity in the Loess Plateau.
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    Effects of chemical capping agent on direct cotton after rape
    ZHANG Li-juan, CHEN Jun-ying, QIN Yu-kun, WANG Yu-ping, CHENG Hui-huang, XIA Shao-nan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 36-40.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.007
    Abstract （405）      PDF （1472KB）（153）       Save
    The effects of chemical capping agent on the growth and development of early-maturing cotton after rape direct seeding was studied under the machine-picking mode, the results provided a basis for the maturation, demonstration and promotion of this technique in the cotton planting area of Poyang lake in the Yangtze river basin. In 2017—2018, the Zhongmiansuo 50 and Zhongmiansuo 425 were used as test materials to perform live broadcast after rape harvesting in machine mode, with 8 treatments （spraying time were T1 and T2; spraying doses were D1, D2 and D3, respectively, and no topping and artificial topping as controls, respectively, CK1 and CK2） to study its agronomic characteristics and yield of cotton effects on properties and quality.After spraying the chemical capping agent, the growth of cotton plants in the vertical and horizontal directions was suppressed at the same time, forming a compact plant type. Compared with artificial topping, using chemical agents to cap, as long as you master the spray application time and dosage will not reduce cotton yield and have no obvious impact on cotton fiber quality.According to the results of 2 years, under the climate and production conditions in the cotton planting area of Poyang lake, chemical agents were used to cap the top of direct seeding cotton after early maturingrape, and the concentration of the capping agent was 1 125~1 500 mL/hm2, the application time should be about 5 days later than artificial topping.
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    Effects of different exogenous selenium on selenium accumulation and distribution and yield components of peanut
    YU Qiong, ZHANG Xiang, SI Xian-zong, SUO Yan-yan, LI Liang, YU Hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 41-45.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.008
    Abstract （417）      PDF （1493KB）（100）       Save
    Using Yuhua 37 as the experimental material, a pot experiment was conducted to explore the effects of three selenium sources （Na2SeO3, SeMet and SeCys） on agronomic characters, selenium content, selenium accumulation, distribution and yield composition of peanut. The results showed that at the same level of selenium application, the application of organic selenium sources （SeMet and SeCys） could promote plant growth better than inorganic selenium sources, and increase the height of main stem, the length of first branch and the number of branches. The content of selenium in all parts of peanut plants was the highest in the roots, followed by kernels. The selenium content and selenium accumulation of peanut kernel from inorganic selenium sources on were higher than those from organic selenium sources. The order of selenium accumulation in different parts of the plant was as follows： Kernel（5.40~16.75 μg/plant）>leaf（3.33~4.86 μg/plant）>stem（2.11~3.47 μg/plant）>shell（2.05~3.23 μg/plant）>root （0.85~1.75 μg/plant）. The distribution ratio of selenium accumulation showed that the proportion of kernel was the largest and that of root was the lowest. The yield, 100-pod weight and full pods weight per plant of organic selenium source were higher than those of inorganic selenium source （Na2SeO3）, and the yield of SeMet and SeCys treatments increased significantly by 22.5% and 18.8% compared with Na2SeO3 treatment. Soil application of three kinds of exogenous selenium had different effects on agronomic characters, selenium content and cumulative distribution proportion and yield components of peanut.
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    Determination the manure decomposition and nutrient release the Sophora alopecuroides
    ZHANG Chao-yang, WANG Lin-na, WANG Meng, XI Lin-qiao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 46-49.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.009
    Abstract （468）      PDF （1502KB）（294）       Save
    The decomposition law of green manure and the nutrient release law of C, N, P and K in soil of Sophora alopecuroides during vegetative period and early flowering period were studied by nylon bag method. The results showed that after 118 days of decomposition, the mineralization rate of N and P in green manure increased gradually, and the mineralization rate of C in green manure was 66.59%. K mineralized rapidly from 0 to 7 days, with a mineralization rate of 55.46%, and mineralized 79.06% at 118 days. C/N showed a downward trend from 0 to 14 days, and became gradually stabilized from 14 to 118 days, and the nutrient mineralization rate was K>C>P>N. On 118 days, the dry matter（DM） decomposition of green manure reached 65.2%, and the mineralization rates of C, N, P and K reached 62.75%, 44.93%, 52.54% and 79.06%, respectively. Among them, 0~14 d was the rapid decomposition stage, 14~28 d was the slow decomposition stage, and 28~118 d was the slow decomposition stage. The dry matter degradation and nutrient release of Sophora alopecuroides green manure were basically synchronized and positively correlated.
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    Assessment of ecological vulnerability in Jinsha river basin
    SHANG Jia-ning, SHAO Huai-yong, LI Feng, OUYANG Xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 50-54.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.010
    Abstract （400）      PDF （1829KB）（253）       Save
    Taking the Jinsha river basin with a complex natural environment and important ecological functions as a research area, an evaluation index system was constructed from two aspects of natural environment and human activities, and a spatial principal component analysis model was used to quantitatively evaluate the ecological vulnerability of the Jinsha river basin from 2005 to 2015. The evaluation results were graded and counted, and then the distribution characteristics and change trends of its ecological vulnerability were obtained. The results showed that the ecological fragility in the Jinsha river basin was significantly different, the upstream ecological environment was better, the middle reaches was second, the downstream was more fragile, and the areas river flow was less vulnerable than the two banks of the valley; The overall ecological environment in the river basin was at a medium level, and the proportions of vulnerability levels from high to low were mild fragile, moderate fragile, potential fragile, severe fragile, and extreme fragile; During the three study periods from 2005 to 2015, the comprehensive index of ecological vulnerability （EVSI） of the Jinsha river basin were 2.53, 2.55 and 2.38, respectively, which firstly increased slightly and then decreased, coupled with the continuous reduction of extremely vulnerable areas, and the overall ecological environment had improved.
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    Ecosystem health evaluation of wetland in the middle reaches of Heihe river based on PSR model
    DU Hong-xia, SUN He-zhou
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 55-62.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.011
    Abstract （343）      PDF （10114KB）（59）       Save
    In order to quantitatively evaluate the health status of the wetland ecosystem in the middle reaches of Heihe river on a spatial-temporal scale, based on the PSR （pressure-state-response） model, 11 indicators were selected from 3 target layers of pressure, state and response to build an index system. The AHP method was used to determine the weight of each index, and combined with the comprehensive index method, the ecological health of the wetland in the middle reaches of Heihe river in the past 18 years was evaluated. The results showed that the health status of the middle reaches of Heihe river was poor, good, good and average in 2000, 2005, 2011 and 2018, respectively. Among them, the wetland ecosystem in Minghua township of Yugur autonomous county of Sunan, which was at a poor level in these four years. The state layer with the most influence （0.650）, while the response layer was the smallest （0.120）. Normalized difference vegetation index （NDVI）, human disturbance index and landscape diversity index （SHDI） were the main factors affecting the health of wetland ecosystem in this region.
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    Effects of different fertilization management on soil nutrient dynamic of citrus orchard in the Three Gorges Reservoir Area
    WANG Xiao-rong, FU Tian, TANG Wan-peng, CUI Hong-xia, HU Wen-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 63-69.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.012
    Abstract （365）      PDF （2582KB）（200）       Save
    The citrus orchard in the Three Gorges Reservoir Area was choose as a research object to detect the effects of different fertilization management approaches such as integrated fertilization with water and fertilizer, traditional fertilization, mixed fertilizer fertilization on soil nutrient dynamics. The results showed that it was acidic soil in citrus orchard that suitable for citrus growth. In 0~10 cm soil layer, the organic matter, total nitrogen, total phosphorus, available nitrogen, available phosphorus and available potassium content under integrated fertilization with water and fertilizer management were significantly higher than those under traditional fertilization and mixed fertilization management. In 10~30 cm layer, the soil nutrients were no significant different among the three fertilization measures in citrus orchard. Compared to soil nutrients in April, the soil organic matter, total nitrogen, total phosphorus, total potassium content under different fertilization managements were lower in July, while the available nitrogen, available phosphorus and available potassium content were higher. The results indicated that the integrated fertilization with water and fertilizer can maintain the soil nutrient in a high level, while the soil under traditional fertilization was still lack of nutrient content which meand the excessive fertilization can not improve the soil nutrient consistently. In the future, applying organic fertilizer with low intensity and high frequency will be an effective way to keep enough available nutrients in citrus orchard. At the same time, soil and water conservation measures, such as grass cover and hedgerows, should be strengthened to reduce the loss of nutrients on the surface and underground leaching, so as to reduce the risk of non-point source pollution.
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    Research on provincial ecological space delineation based on “ecological protection red line,environmental quality baseline,resource utilization upper limit and ecological environmental access list”：A case study of Zhejiang province
    TANG Bo, WANG Li-mei, MAO Hui-ping, XU Ming-zhu, WANG Zhe-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 70-73.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.013
    Abstract （442）      PDF （8302KB）（199）       Save
    Zhejiang province, the south wing of the Yangtze river delta region, was selected as the research area to carry out the research on ecological space demarcation. By adopting the method of “ecological protection red line, environmental quality baseline, resource utilization upper limit and ecological environmental access list”,combining with the reality of Zhejiang province,the ecological space of Zhejiang province was identified, and a total of 54 535.79 km2 of land ecological space was delimit, accounting for 52.28% of the land area of Zhejiang province.
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    Study on the fine distribution characteristics of falling water affected by complex topography in Hubei province
    SUN Peng-jie, WANG Bi-qiang, CHEN Zheng-hong, ZHANG Rong, JIAN Shi-lue
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 74-80.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.014
    Abstract （406）      PDF （7545KB）（171）       Save
    Using the rainfall data of 2 005 regional automatic meteorological observation stations and 82 National weather stations in Hubei province for the past three years, combined with the longitude, latitude, height, slope, and slope of the digital elevation data（DEM）, precipitation and terrain factor models were established in eight regions. Compared with the spatial interpolation distribution of actual precipitation, the trend was relatively consistent. The accuracy of the model simulated precipitation was 89.5%, and the model can better reflect the actual precipitation situation. From the results of simulation, the annual precipitation in most parts of Hubei province was between 600 and 2 100 mm, and its distribution trend increases from north to south. The three regions of southwestern Hubei, southeastern Hubei, and northeastern Hubei were the regions with the most precipitation. Considering the factors such as mountain area, latitude and longitude, the simulated annual precipitation in the mountain area was obviously larger than that of the precipitation distribution based on the national weather station data only, in which the precipitation in the southeast of Hubei was 200~300 mm larger, more than 300~400 mm in southwest Hubei and about 300 mm in northeast Hubei. In particular, the precipitation distribution model of Hubei province can reflect the characteristics of precipitation in high altitude areas significantly higher than the surrounding low-altitude areas.
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    Research on the impact of local climate on the differences of low temperature anomalies in Xuzhou city
    SUN Lei, LYU Xiang, HU Shen-shen, WANG Ke-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 81-86.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.015
    Abstract （428）      PDF （6268KB）（219）       Save
    The data of daily minimum temperature and corresponding climatic background at 6 artificial stations in Xuzhou city were collected. Taking Xuzhou station as the standard station, the error distribution between stations was analyzed, and the data were classified into two types： Two-terminal type, eastern type, western type and whole type. By using the methods of orthogonal function and statistical analysis, the correlation characteristics of the main meteorological factors which cause the great difference of temperature between stations, including wind direction, wind speed, humidity, cold air, etc., were analyzed and the correction methods were refined. The results showed that Feng county was the most prone to appear obvious errors; When the average wind speed was less than 0.5 m/s, the influence of wind direction was not considered. When the average wind speed was more than 0.5 m/s, Xuzhou city was not conducive to cooling when it was affected by southerly wind. Pei county was not conducive to cooling when it was affected by east to southeast wind and Suining county was affected by south to southwest wind. The characteristics of wind direction in Feng county, Pizhou city and Xinyi city were not obvious; The occurrence frequency of large-value errors was highest in autumn and winter in the west, and highest in spring and least in summer in the east; When there was no cold advection, the influence of local wind direction and wind speed environment was dominant, the two-terminal type should be considered, and when there was cold advection, the western type and eastern typeshould be paid more attention. Through subjective revision, the error of site could be reduced and the level of fine forecasting could be further improved.
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    Identification and biological control of tobacco target spot disease （Rhizoctonia solani Kühn） in Sichuan tobacco planting areas
    XU Chuan-tao, ZHANG Chong, ZHANG Ming-jin, XIE Qiang, PENG Yong, ZHANG Yong-hui, XIA Jian-hua, XIA Chun, XIA Bo, GU Yong, WU Yuan-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 87-90.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.016
    Abstract （717）      PDF （3320KB）（633）       Save
    Isolation, identification, pathogenicity and mycelial fusion group determination of pathogenic bacteria collected from tobacco area of Luzhou, Sichuan province were carried out, and several biological pesticides were selected for field control experiments. The results showed that the pathogen was identified as Thanatephorus cucumeris （Frank） Donk, and its anamorph was Rhizoctonia solani Kühn. Observation for the mycelium fusion showed that all the isolates belonged to the anastomosis group 3 （AG-3）. The control effect of Jinggang mycin 10% AS, Bacillus marinus WP and 10.5 billion CFU/g of mixture for Paenibacillus polymyxa and Bacillus subtilis WP were 77.08%, 69.40% and 63.75%,respectively.
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    Study on the control effect of Grapholitha molesta by using sex pheromone directed method in Jurong city peach orchard,Jiangsu province
    YANG He-tong, XUE Zheng, CHENG Jia-qian, ZOU Kai-yu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 91-93.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.017
    Abstract （364）      PDF （1447KB）（149）       Save
    In order to research the control effect and reasonable using density by sex pheromoneisotropic vector of Grapholitha molesta, using the technology the control test was carried outin peach orchard. The results showed that better control effect were 450, 600 and 990 pieces/hm2 treatment respectively, height density treatment was better. Broken end rate and borer fruit rate of Grapholitha molesta were lower than the control, control effect of broken end rate of 450, 600 and 990 pieces/hm2 treatment were 94.79%,96.58% and 96.90%, respectively, and control effect borer fruit rate were 92.55%,96.09% and 97.51%, respectively. Environmental concentration of sex pheromone was 600 pieces/hm2 to be reasonable from considering the comprehensive prevention effect and cost.
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    Stability analysis of antimicrobial active protein from Ochrobactrum sp. SY286
    AN Fu-tao, XIE Jin-hui, LIN Ying, YU Shu-yi, ZANG Chao-qun, LIANG Chun-hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 94-97.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.018
    Abstract （400）      PDF （1583KB）（178）       Save
    Antibacterial active proteins were extracted from the fermentation filtrate of Ochrobactrum sp. SY286 by saturated ammonium sulfate precipitation method. The stability of the active substance was determined by the influence of temperature, pH, ultraviolet light and protease. The results showed that the activity protein salts out from saturation of 60% ammonium sulfate precipitation exhibited the strongest inhibitory activity against Plasmopara viticola, and the inhibition rate was up to 81.98%. The temperature, pH and ultraviolet light had certain influence on active protein. The active protein showed stability under condition of lower than 50 ℃ and pH 4~10. Proteinase had great impact on inhibiting activity substances. Proteinase K, trypsase, trypsase and nematolyt could suppress its activity.
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    Effect of pinoxaden·mesosulfuron-methyl on weed control,nutrient and yield in wheat field
    ZHU Wen-da, YAN Dong-dong, LI Lin, ZHOU Yong-an, CAO Ao-cheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 98-101.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.019
    Abstract （1253）      PDF （1473KB）（366）       Save
    The effect of 6% pinoxaden·mesosulfuron-methyl OD on weed control in wheat field was studied. The wheat yield, the content of N-P-K and water were also analyzed after weed control by pinoxaden·mesosulfuron-methyl. The results indicated that the efficacy of weed control were remarkable by 6% pinoxaden·mesosulfuron-methyl WDG in wheat field. The control efficacy on Malachium aquaticum, Polypogon fugax and Beckmannia syzigachne was ranged from 90.8% to 97.5%. The accumulation of weed water and fertilizer was significantly decreased after weed control. The wheat yield was ranged 3 482.52 to 3 603.77 kg/hm2 after treated with pinoxaden·mesosulfuron-methyl, which increased by 36.17%~40.91% compared to untreated control. Moreover, the yield income increased by 2 127.5~2 406.4 yuan/hm2.
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    Effects of low-voltage direct current electric field on the growth of Astragalus adsurgens Pall. and soil enzyme activity in root system
    CHEN Xin-yan, LING Meng, DENG Liu-yang, DU Meng-lin, YANG Yin-yin, WANG Chen, CHEN Ke
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 102-106.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.020
    Abstract （362）      PDF （2323KB）（141）       Save
    The seedlings of Astragalus adsurgens Pall. were treated with low-voltage direct current electric（DC）field of different intensity.The changes of plant height, plant stem, root length, biomass, chlorophyll content, fluorescence kinetics parameters, antioxidant enzyme activities and soil enzyme activities of root system were measured 30 days after adding electricity. The results showed that in the growth process of Astragalus adsurgens Pall. seedlings, the Fv/Fm of seedlings in the three regions of anode, middle and cathode increased to a certain extent with the increase of the electric field intensity when the low-voltage DC field with the intensity of 0~0.8 V/cm was applied, and it was significantly higher than that of the control group （CK）. The contents of chlorophyll a and chlorophyll b, antioxidant enzyme activities （CAT, POD, SOD）, plant height, plant stem, root length, fresh weight, aboveground biomass and underground biomass all showed a trend of low promotion and high inhibition with the increase of electric field intensity. When the electric field intensity was 0.2~0.4 V/cm, the parameters of Astragalus adsurgens Pall. in different areas were improved to different degrees. However, when the electric field intensity was 0.8 V/cm, the parameters of seedlings were inhibited. Therefore, the electric field intensity of 0.2~0.4 V/cmcan stimulate the growth of Astragalus adsurgens Pall. and may be the best range of electric field intensity to strengthen the process of plant restoration to a certain extent, while the electric field intensity of 0.8 V/cmwill cause stress on the physiology and root soil of Astragalus adsurgens Pall. and make it unable to grow well.
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    The effects of planting density on the growth and development of seedling of Polygonum cuspidatum Sieb.et Zucc.
    LIU Zhi-pei, OUYANG You-xiang, ZHOU Jun, ZHOU Ming, ZHANG Ze-zhi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 107-109.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.021
    Abstract （412）      PDF （1935KB）（229）       Save
    The effects of different planting densities on the growth and development of annual Polygonum cuspidatum Sieb.et Zucc. seedlings were analyzed, and the growth and development of biennial seedlings under the planting density of 5 cm×5 cm. The results showed that different planting densities had an effect on the stem diameter of annual Polygonum cuspidatum Sieb.et Zucc. seedlings, but had no significant effect on the number of stem branches. Under the cultivation density of 5 cm×5 cm, biennial Polygonum cuspidatum Sieb.et Zucc. seed seedlings had more roots, longer taproots, taller stems on the ground, more bud heads, stem diameter≥0.74±0.15 mm, bud heads≥2. It may be that the planting density and years of Polygonum cuspidatum Sieb.et Zucc. seed seedlings are positively correlated with the underground rhizoma length and stem diameter growth of Polygonum cuspidatum Sieb.et Zucc. seedlings in the growth process, which needs further study.
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    Effects of combined application of plant growth hormone on ornamental traits of chrysanthemum
    AO Di-xiu, CHEN Dong-liang, LIU Hua, LUO Chang, CHENG Xi, HUANG Cong-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 110-113.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.022
    Abstract （433）      PDF （1471KB）（164）       Save
    Fourteen ornamental chrysanthemums[Dendranthema morifolium （Ramat.） Tzvelev] sensitive to photoperiod were used to study the effects of different concentrations of daminozide and spraying time on their ornamental characters. The results show that different concentrations of daminozide had a greater effect on the plant height of the same variety, and the same concentration of daminozide had a smaller effect on the plant height of three types of chrysanthemum varieties with fast rooting, medium rooting and slow rooting. With the increase of concentration treated for every 7 days, the inhibition of plant height growth of chrysanthemum was more obvious. The plant height of chrysanthemum was better sprayed at the same concentration for every 10 days. For most varieties, 3 g/L daminozide was the best concentration to control the plant height once every 10 days. Different concentrations of daminozide had obvious effects on flower diameter, leaf length, leaf width, internode length and stem diameter of chrysanthemum varieties. Daminozide could inhibit plant height. The treatment of 3 g/L daminozide every 10 days had the best effect on the height of chrysanthemum.
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    Persistence evaluation of strontium marking on otoliths in larvae common carp （Cyprinus carpio）
    QIU Chen, JIANG Tao, CHEN Xiu-bao, LIU Hong-bo, YANG Jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 114-117.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.023
    Abstract （358）      PDF （3195KB）（177）       Save
    In order to investigate the persistence of Sr markings on otoliths, the larvae common carp （Cyprinus carpio） were marked in this study, using a single concentration of high Sr solution for 2 d immersion. A recognizable Sr marking region could be detected in the otolith, after a long period of recovery, using electron probe X ray micro chemical analysis（EPMA） technique. The results of mapping analysis of Sr content and the fluctuation of Sr/Ca concentration ratios along line transect from the core （0 μm） to the edge in otoliths showed that even after 607 d （i.e., 20 months） of recovery culture, a ring of red Sr marking region was still kept in the otolith. The Sr mark of otolith was firstly confirmed existence for quite a long time at least 20 months after exogenous Sr marking, suggesting that this method exactly have a strong stability, reliability, durability and application potential in the large-scale marking for fish proliferating and releasing and evaluation of corresponding effect.
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    Domestication and artificial reproduction of Chinese ink carp （Procypris mera）
    XU Hua-jian, LU Zou-min, LIN Bin, LIU Qing-shan, TAN Dong-chu, WEI Xue-yao, TAN De-qing, HE Xing-heng, DING Yao, ZHANG Jian, HE Neng-zhen, WEI Xiang, HU Shi-gui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 118-120.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.024
    Abstract （511）      PDF （1472KB）（271）       Save
    The related technologies of broodstock domestication, artificial reproduction and seed cultivation of Chinese ink carp （Procypris mera） were tested. The results showed that after the fry were opened, they were cultivated in an outdoor cement pond by eutrophic water. After 30 days of cultivation, the fry with an average length of 6~10 mm reached 30~40 mm, and the survival rate was 68.7%. Since than, the fry began to switch to summerrlings cultivation stage.
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    The function of astragalus polysaccharides in hepatic steatosis of mice
    WANG Chun-hua, SUN Xue-fang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 121-125.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.025
    Abstract （414）      PDF （3443KB）（186）       Save
    To study the preventive effect and mechanism of astragalus polysaccharides on diet induced hepatic steatosis of mice. The ICR mice were treated with high fat diet and 30% fructose water to building hepatic steatosis model. The mice of prevention groups were intragastric administration of 400 mg/kg astragalus polysaccharides at the same time of building model. After eight weeks, the liver histopathology, liver function, blood lipid and intestinal permeability were detected, and the expression of TLR4 and MyD88 protein in liver was analyzed by western blotting. Results showed that compared with the model group, astragalus polysaccharides caused the preventive group mice that the liver steatosis was reduced, the level of ALT, AST, ALP, TG, TC, GLU of serum were significantly reduced, the level of VDL was significantly increased, the intestinal permeability were decreased, and the expression level of TLR4 and MyD88 protein in liver was decreased. Astragalus polysaccharides can prevent hepatic steatosis, and its mechanism is related to improving intestinal barrier and regulating TLR4/MyD88 signaling pathway.
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    A the influence of feed prices on the price fluctuation of fresh milk in China—Based on VAR model
    CUI Li-hang, GUO Rui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 126-130.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.026
    Abstract （340）      PDF （1829KB）（103）       Save
    In recent years, the price of fresh milk fluctuates frequently, which seriously affected the interests of producers and the health, stability and sustainable development of dairy industry. In this paper, monthly data of maize, soybean meal and fresh milk prices from January 2007 to December 2018 were selected as samples for empirical analysis. The fluctuation characteristics and changing trends of these three prices were analyzed. The VAR model wasused to explore the impact of feed prices on fresh milk prices, so as to reveal the impact mechanism of feed prices on fresh milk prices. The results showed that there wasa long-term stable equilibrium relationship between feed price and fresh milk price, and the change of feed price will inevitably lead to the change of fresh milk price, and the effect was lagging behind. In the short run, the rising feed prices represented by corn and soybean meal will inevitably lead to the rising price of fresh milk in the next period; in the long run, the price of fresh milk wasmainly affected by its own price, but the feed price will have a significant impact on the price of fresh milk.
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    Study on optimization of extraction process of volatile oil from mint produced in Anhui province
    ZHAO Yu-qing, ZHANG Xin, MU Kai-lang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 131-133.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.027
    Abstract （416）      PDF （1476KB）（278）       Save
    The extraction technology of volatile oil of mint（Mentha canadensis Linnaeus） was optimized by steam distillation with the raw material of mint leaf produced in Huangshan, Anhui province. The effects of four extracting factors （solid-liquid ratio, distillation time, soaking time and ultrasonic time） were used. The results showed that the best extraction technology was the solid-liquid ratio 1∶11 （g∶mL）, distillation time 3.0 h, soaking time 2.0 h, and the ultrasonic time 30 min. Under the condition,the average extraction rate of volatile oil was 2.3%. The verification test also showed that the extraction process of volatile oil from mint was stable and reliable.
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    Study on process optimization for the extraction of pea protein and its emulsification and foaming activity
    DAI Yuan, LENG Jin-song, LU Hong-jia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 134-139.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.028
    Abstract （586）      PDF （5162KB）（441）       Save
    Dry peas were used as research objects, which was ground into powder, and water was used as solvent to extract protein from pea flour. The extraction conditions were optimized using response surface analysis and the emulsification and foaming activity of the extracted products was determined. The results of the optimum extraction conditions within the scope of experimental research were as follows, the ratio of raw material to water 1∶30（g∶mL）, the type of enzyme alkali protease, extraction time 50 minutes, ultrasonic power 150 W. Under these conditions, the extraction rate of pea protein was up to 95.64%. The results of emulsification and foaming activity were as follows, emulsion activity 11.27 mL/g, emulsion stability 36.96 min, foaming activity 86.25%, foam stability 33.33%. Therefore, the optimization of pea protein extraction process technology was reasonable and feasible, and pea protein has stronger emulsification activity and emulsification stability, as well as stronger foaming activity and foam stability.
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    Study on the distribution of heavy metals in cattail in constructed wetlands
    GE Guang-huan, KOU Kun, YU Su-hui, WANG Yang, WEN Zhi-liang, LI Xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 141-144.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.029
    Abstract （370）      PDF （3432KB）（103）       Save
    To explore the distribution of heavy metals in the cattails, the Zaohe constructed wetland and the Zaohe river constructed wetland demonstration base were selected as the research site. The cattails in the two artificial wetlands were taken as the research object, and the concentrations of copper and chromium in different parts of cattails were determined. The results showed that the cattail can absorb Cu well, and the content of heavy metals in cattail roots is the most, followed by the stem and leaves; The content of Cu is the highest in cattail, and the transfer coefficient of Cu in cattail is large, so the heavy metal in plants can be removed through seasonal harvesting; The cattails in two constructed wetlands can better remove the heavy metal Cu.
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    Establishment of the determination method of saikosaponin c,a,d in Radix bupleurum
    LU Li-xiang, ZHOU Shi-you, ZENG Hai-sheng, ZHAO Feng-xian, YANG Gui-lin, TAN Yu-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 145-147.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.030
    Abstract （366）      PDF （1552KB）（190）       Save
    To establish a method for the determination of saikosaponins c, a, d in Bupleurum. using high-performance liquid chromatography, an Agilent SB-C18 column （4.6 mm×250 mm, 5 μm）, using acetonitrile-water as the mobile phase, gradient elution, flow rate 1.0 mL/min, detector for evaporative light Scatter detector. Results showed that the saikosaponins c, a, d were in the linear range of 2.028~20.280, 1.904~19.040, 2.112~21.120 μg, R2 were 0.999 8, 0.999 6, 0.999 5, respectively.
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    Design of mobile system for agricultural tourism recommendation based on mixed user interest model
    OU Dan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 148-152.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.031
    Abstract （386）      PDF （3217KB）（224）       Save
    In order to optimize and promote agricultural tourism information services and platform construction, a mixed user interest model based on short-term user interest and long-term user interest was established. Based on this, the core demand analysis and system module design analysis of the agricultural tourism system were carried out. Finally, the platform performance and user satisfaction of the mobile system were investigated. The results showed that user click-through rate and data visits were basically positively correlated, and the trend of the curve was basically the same. The mobile recommendation system can promptly feedback the user's operational needs and return the results. The satisfaction of tourists and farmers with the system has increased from 56% to 78%. At the same time, the satisfaction expectations of agricultural products and agricultural attractions recommendations have also increased from 77% and 68% to 96% and 95%, respectively.
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    Empirical analysis of the development of agricultural insurance and its influencing factors in Xinjiang
    YUE Dong-qin, MA Qiong, HOU Yu-long, ZHOU Zi-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 153-156.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.032
    Abstract （415）      PDF （1567KB）（204）       Save
    Xinjiang is short of agricultural resources, frequent natural disasters and agricultural development is facing huge risks, the use of agricultural insurance to avoid the risks of agricultural development in Xinjiang plays an important role. By using Eviews 6.0 software to carry out multiple linear regression and establishing relevant models, this research studied the main factors that may affect the development of agricultural insurance in Xinjiang at this stage. The results showed that, the per capita net income of farmers and the loss ratio of agricultural insurance in the previous year had a positive impact on the premium income of agricultural insurance in Xinjiang, and the proportion of crop disaster area in disaster area had a negative impact on the premium income of agricultural insurance in Xinjiang. Finally, it put forward suggestions in order to stabilize the income of farmers and achieve social stability and long-term stability in Xinjiang.
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    Research on the quality evaluation of new urbanization development in Heilongjiang province based on entropy method
    WANG Chong, ZHAI Xu-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 157-161.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.033
    Abstract （453）      PDF （1730KB）（330）       Save
    This research used entropy method to select 23 indexes from four dimensions to construct the evaluation index system of high-quality development of new urbanization in Heilongjiang province. The results showed that the overall development quality of new urbanization in Heilongjiang province showed a steady growth trend from 2008 to 2018, but the overall quality was not high. Among the four dimensions, the quality of residents' social life and the green ecological quality of human settlements were better, while the quality of economic development power and the coordinated development of urban and rural areas were relatively backward, which need to be adjusted. Finally, according to the evaluation results to make a detailed analysis and put forward corresponding suggestions, in order to provide a reference for the high-quality development of new urbanization in Heilongjiang province.
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    Intuitionistic fuzzy multi-attribute decision making based on improved Spearman rank correlation coefficient
    GUO Min, TIAN Jia-xing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 162-170.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.034
    Abstract （415）      PDF （1607KB）（227）       Save
    A new decision method of Spearman rank correlation coefficient was proposed for multi-attribute decision making with intuitionistic fuzzy numbers. The attribute weights obtained by AHP and entropy weight method were used to construct the optimization model with the idea of game theory equilibrium, and the mixed penalty function was used to solve the optimal combination weights. The association degree of each attribute was calculated according to the idea of grey correlation analysis. The correlation degree and the optimal weight of each scheme were labeled according to their own size, which were taken into Spearman rank correlation coefficient calculation as comparison sequence and reference sequence respectively. The size of correlation coefficient obtained was used for priority arrangement. Finally, an example was given to verify the effectiveness of the method.
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    Study on the communication and development of rural science and technology information in Hubei province under the new media environment
    FAN Qing, CHEN Hong-you
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 171-175.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.035
    Abstract （365）      PDF （1478KB）（166）       Save
    In order to understand the application status and communication channels of rural science and technology information communication in Hubei province, this study conducted an investigation and research on the basis of analyzing the restrictive factors facing the development of rural science and technology information communication. According to the survey results, the current rural science and technology information communication in Hubei province had achieved some results under the rapid development of new media, but there were still some defects in the rural information communication environment, the construction of science and technology service platform, and the demand positioning of science and technology information, etc. Relevant suggestions were put forward to solve this problems.
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    Study on the benefit evaluation of meteorological disaster prevention and mitigation service of rainstorm disaster in Hunan province
    DENG Ling, LI Xue-min, TAN Shan-shan, ZHANG Si-yuan, TAN Shi-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 176-179.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.036
    Abstract （394）      PDF （1484KB）（102）       Save
    Aiming at the meteorological disaster prevention and mitigation service of rainstorm disaster, the index of decision service benefit, public service benefit, social service benefit and inevitable loss factors were mainly considered, and the benefit evaluation model of meteorological disaster prevention and mitigation service of rainstorm disaster in Hunan province was established based on the backstepping method. The model was used to evaluate the meteorological disaster prevention and mitigation service benefit of six typical rainstorm weather processes in Hunan province from 2011 to 2015. The results showed that in recent years, the decision service benefit and social service benefit of rainstorm disaster in Hunan province were basically on the rise, and the public service benefit fluctuated greatly; the benefit of meteorological disaster prevention and mitigation service of rainstorm disaster accounted for 38.6%~57.0% of the direct economic loss of disaster, and the benefit of meteorological disaster prevention and mitigation service in a single rainstorm process was up to 1.366 billion yuan.
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    Construction and evaluation of circular economy efficiency evaluation index system：A case study of Shangluo city
    DUAN Kai, WANG Ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 180-184.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.037
    Abstract （352）      PDF （1812KB）（202）       Save
    By constructing the evaluation index system of Shangluo circular economy efficiency, the BCC model was used to evaluate the efficiency of circular economy in Shangluo city. The results showed that the scale efficiency of circular economy in Shangluo city was the best, but the pure technical efficiency was very low, which leaded to the input-output comprehensive efficiency is not ideal.
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    Influence of hierarchical diagnosis and treatment of medical institutions on rural residents' choice of medical treatment
    YANG Qian, XIANG Li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 185-189.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.038
    Abstract （310）      PDF （1529KB）（212）       Save
    914 rural residents were selected by random stratified sampling method to understand their cognition of hierarchical diagnosis and treatment system, the characteristics of medical treatment choice and the relevant factors influencing their medical treatment choice. The results showed that, 57.33% of the respondents did not know the hierarchical diagnosis and treatment system, 79.87% of the respondents agreed with the hierarchical diagnosis and treatment system;when suffering from minor diseases/common diseases, 64.99% of the respondents chose to go to primary hospital, 20.02% of the respondents chose to go to secondary and tertiary hospital, and 14.99% of the respondents chose to go to private clinics / pharmacies;in terms of medical service attitude, hospital health environment, facilities and equipment perfection , the overall satisfaction degree of the respondents to the secondary and tertiary hospital was better than that of the primary hospital; average monthly income, distance from the nearest primary hospital（walking time）, awareness of hierarchical diagnosis and treatment system, purchase of medical insurance and self-assessment of health status were the main factors influencing the medical treatment choice of rural residents.
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    Research on the promotion mechanism and development strategy of waste classification for the construction of green civilization in new rural areas
    LIU Xuan-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 190-194.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.039
    Abstract （356）      PDF （2068KB）（319）       Save
    The construction of green civilization is one of the important contents of building a new socialist countryside in an all-round way. Rural waste classification can not only improve the rural living environment, but also promote the construction of green civilization in new countryside. The promotion mechanism of rural waste classification to the construction of new rural green civilization was analyzed; through the establishment of SWOT model of rural waste classification, the advantages, disadvantages, opportunities and challenges of new rural waste classification to promote the construction of green civilization were analyzed, and the development strategies and specific measures of new rural waste classification were put forward.
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    Exploration and practice of rural revitalization pole-axis town and village mode：Taking Miaoba town in Dazhu county of Sichuan province as an example
    ZHANG Yang, SHI Bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (8): 195-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.08.040
    Abstract （479）      PDF （5621KB）（210）       Save
    The revitalization strategy and method of town and village level is the key content of rural revitalization strategy. In the face of the fragmentation of rural construction, lack of growth points, lack of internal vitality, and difficulty in the continuation of characteristics, this study put forward four pole-axis application modes of spatial elements, cultural elements, rules and order, and elements composition based on the pole-axis system theory. Taking Miaoba town of Dazhu county in Sichuan province as an example, this study analyzed the current situation, characteristics and shortcomings of the pole-axis-cluster areas in rural areas, and formulated the development strategies and directions of various elements, so as to provide reference for the formulation of revitalization strategies and implementation plans at the town and village level.
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    Research progress of phage arbitrium communication system
    JIAO Wen-hao, XU Bing-hong, LIU Jing, LIU Pei-yuan, YAN Han-chi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 5-9.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.001
    Abstract （436）      PDF （3501KB）（320）       Save
    During the infection of the host, the temperate bacteriophages can enter lytic or lysogenic life cycles according to the population density. In recent years, for SPbeta phages in Bacillus subtilis infection process, a communication system was found to determine the process of lysis-lysogeney. The communication system is called arbitrium communication system. Arbitrium communication system is composed of three phage genes：aimR,aimP,aimX. The AimR protein encoded by the aimR gene is the key protein of the arbitrium communication system. The arbitrium peptide is transported into the cell to bind with the AimR protein, which releases the regulation effect of the AimR protein on the aimX gene, allowing the bacteriophage to enter the lysogenic cycle. The structural characteristics of AimR and the mechanism of peptide action were reviewed, in order to provide valuable reference information for the in-depth study of this communication system and for disease control by Bacillus subtilis.
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    Research progress on the effect of miRNA on rice stress response and yield regulation
    YU Ya-jie, LI Shao-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 10-15.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.002
    Abstract （502）      PDF （1518KB）（325）       Save
    MicroRNA （miRNA） is a non-coding small RNA with a length of 20~24 nt. Organisms regulate autologous development and response to environmental stress through regulatory of miRNAs expression level in vivo, which affect the stability and translation of their target genes. MiRNAs play a significant role in rice yield andresponse to environmental stress through different regulatory pathways. The relevant researches on miRNA in rice yield increase and stress responsewas reviewed,in order to provide new research ideas for the exploitation of rice germplasm resources and the improvement of rice varieties.
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    Response of soil moisture to precipitation and groundwater in summer maize growing season of Huaibei plain
    ZHANG Hao-qiang, ZHU Yong-hua, LYU Hai-shen, GOU Qi-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 16-20.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.003
    Abstract （280）      PDF （1517KB）（166）       Save
    The transformation relationship between precipitation, soil water and groundwater is of great significance for water resources assessment, supply and demand forecasting, rational development and utilization of water resources and water-saving irrigation. In this paper, real-time monitoring of soil moisture, precipitation and groundwater in crop growth period was carried out at Wudaogou experimental station in Huaibei plain. Through the monitoring of precipitation, soil water and groundwater, the characteristic parameters algorithm and related analysis methods were used to study the response of soil moisture to precipitation and groundwater in the black soil area of the Huaibei plain. The results showed that precipitation with less rain intensity only disturbed the water content of surface soil; The trend of soil moisture change during crop growth period was opposite to the change of groundwater depth. The soil moisture content of 50 cm soil was the lowest in the growth period of summer maize, and the soil moisture content was the highest in 70 cm soil. When the precipitation in the growing season was small, the soil water and groundwater alternated more frequently. The correlation coefficient between precipitation and soil water in the study area was very low, and the relationship between precipitation and soil water cannot be expressed by a simple linear correlation. The soil moisture content of 10 cm, 50 cm and 70 cm was the best correlation with the soil moisture content of 30 cm. The groundwater depth and the soil moisture content of each layer were negatively correlated, and the correlation coefficient with the soil moisture content of 30 cm was the largest.
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    Study on the systemicity of phenazine-1-carboxylic acid-valine conjugates in wheat plants
    DONG Qian, ZHAO Chi-na, LI Jun-kai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 21-25.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.004
    Abstract （424）      PDF （2674KB）（170）       Save
    To clarify the uptake and translocation ability of phenazine-l-carboxylic acid-valine（PCA-Val） conjugate in wheat plants, using PCA-Val as a supplied test fungicides, the transportation and the contents of PCA-Val in leaves and roots of wheat plants were determined by ultra performance liquid chromatography-tandem mass spectrometry method after it was applied to leaves. The results showed that, for wheat plants at the tillering stage, when the concentration of the tested agents was 200 μmol/L, the content of the compounds could be detected in the roots of wheat plants, and the content of PCA-L-Val in the roots reached its peak of 15.50 μmol/kg after treatment for 18 h, and that of PCA-D-Val reached the peak at the same time, which was 11.37 μmol/kg. In addition, the conjugates could also be detected in the tiller leaves of wheat, and the content of PCA-L-Val in the tiller reached its peak of 8.74 μmol/kg after treatment for 3 h, while PCA-D-Val reached its peak of 4.54 μmol/kg at the same time. Study proves that, the PCA-valine conjugates has phloem mobility in wheat plants,and also has the particular systemicity from the main stem to the tillers, the systemic mobility of valine conjugates in L configuration were significantly higher than those in D configuration.
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    Comparative analysis of three models to the study on risk precipitation threshold value in Datong river basin
    LIU Yi-hua, LI Hong-mei, LI Lin, WANG Qing-chun, XU Xian-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 26-31.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.005
    Abstract （374）      PDF （3987KB）（194）       Save
    Based on data from GIS information, meteorological stations and hydrological stations, the applicability study of risk precipitation in Datong river basin was carried out using SWAT model, HBV model and statistical model. The results indicated that, the middle rain and above the middle rain in Datong river mainly appeared from May to September, the cumulative number of times was 41 from 2007 to 2011, and the trend of frequency and intensity showed an obvious increasing. Through the results of the application of three models in Datong river basin and the test of the actual flood,the SWAT model was the best method to modify the runoff in the Datong river basin, with efficiency coefficient of 0.87 and R2 of 0.94 during the validation period, and with efficiency coefficient of 0.62 and R2 of 0.83 during the calibration period, and simulating runoff and observed runoff reached the testing standard; The coefficients of determination and NSE were 0.84 and 0.61 during the validation period with HBV model , but they were 0.81 and 0.51 during the calibration period, there was no good fitting rate using HBV model compared with SWAT model. If there is a long period of hydrological data in the basin, it is more scientific to use hydrological model to determine the critical rainfall. However, the statistical model, based on the regression relationship between precipitation and water level difference, does not consider the process of surface runoff formed from rainfall, so the threshold value determined is too large.
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    Prediction and verification of dynamic model of temperature and humidity of greenhouse microclimate
    WEI Yu-fei, ZHAO Jian-gui, GAO An-qi, BAI Yun-fei, LI Zhi-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 32-38.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.006
    Abstract （521）      PDF （2239KB）（386）       Save
    Taking Oumeijia tomato （Solanum lycopersicum Solyc） as the test material, adopting greenhouse matrix cultivation, using the internal and external environment data of tomato growth and development for 3 consecutive months, improved heat transfer theory and mass energy balance equation, the dynamic prediction model of temperature and humidity in the greenhouse was established and verified.Taking the glass greenhouse of Engineering College of Shanxi Agricultural University as an example, the dynamic model was established taking into account the indoor and outdoor solar radiation amount, indoor and outdoor temperature, wind speed, ventilation rate, envelope structure and other factors, and the model was used to analyze the temperature and humidity of tomato at each growth stage. The results showed that outdoor temperature and solar radiation were the main factors affecting indoor temperature （especially in winter, heating facilities should be considered）, and indoor humidity was mainly affected by transpiration rate, indoor temperature and ventilation. The relative errors of temperature in each growth stage （seedling stage, flowering stage and fruiting stage） were 7.70%, 7.90% and 6.80%, absolute error were 1.42 ℃, 1.26 ℃, 1.05 ℃, and RMS standard error were 1.32 ℃, 1.39 ℃, 1.25 ℃, respectively; Relative error of humidity were 6.10%, 3.20%, 1.41%, absolute error were 4.08, 2.11, 1.35 percentage point, and the root-mean-square standard error were 3.73%, 2.16% and 1.11%, respectively. Which verifies that the model is reliable and effective and can provide model support for subsequent environmental control and decision management.
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    Characteristics of the spatio-temporal changes of extreme temperatures in Tibet from 1971 to 2018
    HU Wen-yuan, LI Zhi-guo, YAO Rong-peng, ZHAO Jing-jing, FAN Rui-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 39-45.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.007
    Abstract （529）      PDF （4234KB）（235）       Save
    Under the background of global warming, extreme temperature changes have become a serious threat to Tibetʼs economic and social development and ecological and environmental protection. Based on the daily maximum and minimum temperature in Tibet from 1971 to 2018, and 12 extreme air temperature indices recommended by international ETCCDI were computed to reveal the temporal and spatial variations of extreme temperature in Tibet. The results showed that, in the past 48 years, the cool days, cool nights, ice days, frost days, and diurnal temperature range in Tibet showed a downward trend, and the warm days, warm nights, summer days, max Tmax, max Tmin, min Tmax, and min Tmin showed an upward trend, and the changes were more obvious after the 1990s. The extreme temperature index （cold indices and warm indices） showed an asymmetric change in time, and the change range and rate of the cold indices were higher than the warm indices. Most extreme temperature indicators showed obvious changes from southeast to northwest. The most extreme temperature indices had no obvious correlation with longitude and latitude. Except that cool days, cool nights, warm days and diurnal temperature range had no obvious relationship with altitude, the other extreme temperature indexes were significantly related to altitude.
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    Correlation analysis of meteorological factors and net primary productivity of plants of larch in Heilongjiang province
    ZHOU Xue
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 46-49.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.008
    Abstract （414）      PDF （1489KB）（210）       Save
    The main research area, and the meteorological data of Heilongjiang province in 2010, including the average temperature, precipitation, average wind speed and arerage relative humidity, as well as the fixed sample GPS point was selected as research date. Based on the meteorological data, three interpolation methods were used for interpolation analysis, and the optimal interpolation method corresponding to each meteorological factor was obtained after comparison and verification. Based on the meteorological data of Heilongjiang province in 2010 and the data of the fixed plot of larch forest and the allometric model of tree species in northeast China, the correlation between meteorological factors and net primary productivity of plants （NPP） of larch was studied. The results showed that, the optimal interpolation methods of the precipitation and mean temperature all were Kriging interpolation method, and the optimal interpolation methods of average wind speed and average relative humidity were the spline interpolation method and distance weight method respectively. NPP was weakly positively correlated with each meteorological factor. Among them, the correlation with the average temperature was the largest, and the correlation coefficient was 0.304 11. The correlation coefficient between NPP and relative humidity was 0.293 02, and the correlation coefficient with precipitation was 0.235 18. The correlation with the average wind speed was the smallest, and the correlation coefficient was 0.091 78.
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    Spatial pattern evolution of land utilization in Hengshao drought corridor based on remote sensing
    ZAHO Sha, ZHENG Wen-wu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 50-55.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.009
    Abstract （383）      PDF （9331KB）（138）       Save
    The Hengshao drought corridor is a typical arid area in the south. The unreasonable land use pattern exacerbates the risk of disaster occurrence. Therefore, the evolution of land use spatial pattern in the Hengshao drought corridor is of great significance for understanding the mechanism of drought. Using the remote sensing image data of the Hengshao drought corridor from 2000 to 2017, and GIS spatial analysis and land use change index model, the spatial distribution characteristics of land utilization of Hengshao drought corridor from 2000 to 2017 was quantitatively analyzed from the perspective of land use change speed and transfer direction, and the evolution law of land use under different drought degrees was analyzed combined with meteorological observation data. The results showed that the agricultural land area was decreasing with the acceleration of urbanization, from 52.63% in 2000 to 38.89% in 2017, mainly distributed in the main urban areas and surrounding counties, and the water area continued to shrink due to the aggravation of drought. Forest land, construction land and unused land （naked land） continued to expand, and the land use dynamics of construction land from 2009 to 2017 reached 22.84% per annum. The increase in the former was mainly attributed to the national policy of returning farmland to forests, and the latter two were attributed to rapid urbanization.
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    Analysis of agricultural impact of groundwater quality in the Yingshouyingzi mining area
    GUO Jin-jin, WU Zhi-yong, MA Zhi-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 56-60.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.010
    Abstract （381）      PDF （2293KB）（204）       Save
    This study paied more attention to the survey on the interfering factors about the groundwater on the basis of environmental impact assessment in the Yingshouyingzi mining area, Chengde city, Hebei province. The Nimero index method’s result displayed that the quality type of four wells in this mining area belonged to the third estate, however, the water quality was different among four wells. Through the survey of land use, domestic sewage and agricultural runoff, it founded that there were many residents and farmlands around the reserves, domestic the sewage and the agricultural fertilizer had seriously affected the quality of drinking-groundwater, which was the most important influencing factor that caused the deterioration of water environment.
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    Drought analysis in the eastern plain of Henan province from 1956 to 2016
    YANG Dan, LI Zhong-yuan, WANG Guo-zhong, LIU Shou-dong, LUO Qing-yuan, LI Jia-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 61-65.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.011
    Abstract （373）      PDF （3551KB）（257）       Save
    The methods of precipitation Z index, wavelet and anomaly analysis were used to analyze the drought in the Eastern plain of Henan province, so as to master its characteristics and laws of drought. The results showed that the annual frequency of drought in this area was 29.5%, the variation of the 1956 to 1967,1978 to 1986 and 1996 to 2004 sequences were obvious. The drought evolution was the most oscillatory in the 10a cycle scale, and was the main cycle. The frequency of the drought was between 24.7% and 34.2%, and the drought-prone areas were mainly concentrated in two zones. The average ratio of drought area was 30.03%, which showed a slow increasing trend. It can be seen that the region should strengthen water resources management developing high-efficiency water-saving and circular agriculture, to ensure food security.
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    Research on the layout characteristics of urban settlements based on SNA
    SONG Zi-ming, CHEN Peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 66-71.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.012
    Abstract （386）      PDF （6030KB）（247）       Save
    In order to study the pressure of rapid population growth caused by rapid urbanization on urban infrastructure construction,Nanguan district of Changchun was taken as an example, the principle and method of social network analysis（SNA） was introduced, and the semantic model of “point” unit spatial combination and “line” relationship in Nanguan district of Changchun were constructed. In Ucinet, social network analysis software platform to build the whole network model of Nanguan district settlement calculation analysis among some center degrees, center, close to the center, such as the K-core data, based on specific relationships, Nanguan district residential areas can be divided into four regions, regarding the relationships between four regional planning, a quantitative visualization research method of urban settlements was built.
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    Breeding of a flue-cured tobacco variety Ekao 030 and its evaluation
    CAO Jing-lin, CHENG Jun-qi, LI Ya-pei, WU Cheng-lin, ZHANG Jun-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 72-77.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.013
    Abstract （694）      PDF （1458KB）（238）       Save
    In view of the ecological conditions in Hubei tobacco growing areas, new flue-cured tobacco varieties with strong adaptability and similar quality to major cv. K326 and Yunyan 87 were bred. A new flue-cured tobacco hybrid variety Ekao 030 was bred with K326 （quality flue-cured female variety） and Longjiang 911 （with resistance to brown spot, black shank, root knot nematode and PVY） as parents, respectively. It was identified and evaluated in Hubei tobacco variety test and national tobacco variety test. The experimental results showed that Ekao 030 possessed good adaptability, resistance to black shank and root knot nematode. The average yield, output value, average price and superior tobacco rate of this new variety were 2 222.10 kg/hm2, 48 782.55 yuan/hm2, 21.86 yuan/kg and 40.04% respectively. Among them, the yield and output value of this variety increased by 7.10% and 11.94% respectively compared with the main control variety K326, and 8.29% and 8.07% higher than that of Yunyan 87; the average price and the rate of superior tobacco were similar to those of Yunyan 87, but increased by 2.92% and 5.47% compared with K326. The flue-cured leaves of Ekao 030 were rich in oil and moderate in body, and displayed well-distributed golden color. The comprehensive physical characteristics of this new variety were better than K326 and Yunyan 87. Its contents of main chemical components were harmonious, the quality of tobacco sensory evaluation was moderate, and the overall quality of smoking was better than that of control variety K326 and Yunyan 87. In conclusion, Ekao 030 is a new variety with potentials for high quality, remarkable economic performance, strong resistance to diseases and wide adaptability.
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    Analysis on the characteristics and differences of sugar-acid accumulation in different sugar accumulation types of jujube
    LIANG Feng-zhi, SUN Jin-mei, TONG Pan-pan, ZHANG Ya-ruo, WANG Di, WANG Jiang-bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 78-83.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.014
    Abstract （421）      PDF （1749KB）（271）       Save
    Nine jujube varieties with different types of sugar accumulation were used as materials to determine and analyze the content and significant differences of sugar acid components in jujubes of different varieties at four development stages. The results showed that the main sugar group of nine jujube fruits was sucrose, glucose and fructose, and the main acid group was malic acid, citric acid and succinic acid. The acid content of three kinds of different sugar accumulation jujubes increased continuously from fruit expanding period to ripening stage, and the sugar content was mainly reducing sugar accumulation from fruit expanding period to white mature period. Sucrose type cultivar were mainly sucrose accumulation from crisp ripening to ripe stage. Reducing sugar type varieties mainly accumulate reducing sugar from crisp ripening to ripe stage. Therefore, white mature period to crisp mature period is an important period for the accumulation of sugar components.
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    Correlation and path analysis of main agronomic characters and yield in 24 pumpkin hybrid combinations
    QIAO Dan-dan, WANG Meng-meng, LIU Zhen-wei, SUN Li, LI Xin-zheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 84-87.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.015
    Abstract （449）      PDF （1457KB）（180）       Save
    Correlation analysis and path analysis of 12 agronomic traits of 24 pumpkin hybrid combinations were performed in this study. The results showed that, the fruit neck and melon have rich genetic variation. The yield per plant have significantly positive correlation with single fruit weight （r=0.66**）, vine length （r=0.56**）, and the number of fruit per plant （r=0.53**）, and internode length （r=0.47*）, leaf area （r=0.46*） and the first female flower node （r=0.43*） showed a significant positive correlation, and negatively correlated with melon （r=-0.22）. The results of the path indicate that the direct effect of the weight of single melon, the number of melons per plant, the diameter of the fruit, the first female flower node, the melon, and the internode length have a positive effect on the yield of pumpkin per plant, vine length, leaf area and fruit. The direct effect of longitudinal diameter, melon belly and flesh thickness on the yield per plant of pumpkin is negative. Therefore, in the breeding of high yield, it is necessary to coordinate the relationship between the traits, the effect of the weight of single melon on the yield, and the number of vines and the number of single plants.
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    Effects of gaps on species regeneration of evergreen broad-leaved forest in mountainous area of Northern Guangxi
    DENG Shan-bao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 88-93.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.016
    Abstract （372）      PDF （1485KB）（348）       Save
    Taking the evergreen broad-leaved forest in Dudong, Sanjiang county, Guangxi province as the research object, the size characteristics of gaps and the effects of gaps on the regeneration of tree species, shrubs, herbs and vines were analyzed. The results showed that the expanded gap area accounted for 71.7% of the sample plot area, and the canopy gap area accounted for 52.9% of the sample plot area. The sequence difference of important values of Acer metcalfii in and outside the gap was -35, and the positive regeneration response was very significant. In the shrub survey, the regeneration response was significant positive regeneration. It can be seen that the forest gap has the most obvious impact on the regeneration of Acer metcalfii, and the dominance will gradually increase. The significant value sequence differences of Elaeocarpusa japonicus and Ficus heteromorpha were -14 and -12, which showed significant positive regeneration. The sequence differences of Sloanea chingiana, Acer fabri and Beilschmiedia tsangii were -6, -9, -5, showing moderate positive regeneration. The corresponding shrub regeneration showed negative regeneration or no significant regeneration, and the dominance gradually decreased in the subsequent disturbance. The regeneration strategies of Stewartia gemmata, Michelia maudiae, Betula utilis, Hartia villosa, Manglietia conifera and Manglietia conifera were negative regeneration, and the corresponding shrub regeneration showed negative regeneration or no significant regeneration. In their subsequent development, their dominance gradually decreased and were gradually replaced by other tree species. The regeneration response of liana and herbaceous plants in and outside the gap was also significant.
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    A new model of three-dimensional ecological sustainable development of forest,Gastrodia elata,mushrooms and Rhizoma polygonati
    PENG Cheng-jiang, LIU Peng, CAO Yong-zhi, ZHENG Zhi-hong, WEN Yu-chao, LI Qi-gao, QIU Zhi-long, CHEN Xu-dong, SHAO Xian-qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 94-97.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.017
    Abstract （428）      PDF （1451KB）（239）       Save
    Taking the concrete model of three-dimensional ecological cultivation in the development of Gastrodia elata Bl. industry in Dejiang as an example, to expounds the three-dimensional ecological sustainable development model of fungus-growing materials, Gastrodia elata Bl, Phallus impudicus, Rhizoma polygonati and other species, to make Gastrodia elata Bl and Phallus impudicus industry long-term self-sufficient in raw materials, So that Gastrodia elata Bl. and Phallus impudicus planting raw materials can be self-sufficient for a long time, and solved the recycling problem of Gastrodia elata wasted fungus-growing materials, it also provide a solution to the continuous cropping barrier of Gastrodia elata Bl. This model not only enriches the industrial structure, promotes the industrial income increase, but also has a very good effect to drives the poverty alleviation, let the poor mountainous area to get rid of the poverty to get rich come ture. This way is a very good poverty alleviation model, and also the only way to the sustainable development of Gastrodia elata Bl industry.
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    Effects of Bacillus complex on fecal microbial flora and egg quality of laying hens
    WAN Xue-ji, GONG Ping, YANG Yu, TONG Xin-hong, LI Zhong-xin, YU Ting, YE Sheng-qiang, CHEN Xing, WANG Li-xia, LING Ming-hu, CHEN Jie, QIAN Yun-guo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 98-101.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.018
    Abstract （380）      PDF （1477KB）（153）       Save
    Thirty-week-old healthy Hy-Line Brown laying hens in two henhouses were chosen to evaluate the effects of complex Bacillus on fecal microbial flora and egg quality of laying hens. Hens in the control group were fed a basal diet, and hens in the experimental group were fed basal diet supplemented with complex Bacillus. The results showed as follows： compared with the control group, at 30 d, the amount of “Salmonella+Shigella” decreased significantly （P<0.05）, and Bacillus increased significantly （P<0.05） in the experimental group; at 60 d, the amount of total airborne bacteria and Escherichia coli decreased significantly （P<0.05）, bacillus increased significantly （P<0.05）, and the ratio of egg yolk increased significantly （P<0.05）; at 90 d, the amount of total airborne bacteria, Escherichia coli and “Salmonella+Shigella” decreased significantly （P<0.05）, and egg yolk color increased significantly （P<0.05）. The results indicated that dietary supplemented with complex Bacillus could significantly decrease the amounts of harmful microorganism to improve the intestinal healthy, and significantly increase the egg yolk ratio and color, and then improve the egg quality.
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    Principal component analysis of carcass traits of yak under standardized production conditions
    WU Jin-bo, HE Shi-ming, LI Zhu, WANG Tai, JIAN Shang-lin, TA Ying, TAN Ben-xu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 102-105.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.019
    Abstract （359）      PDF （1455KB）（217）       Save
    In order to explore the difference and correlation of yak laughter traits under standardized production conditions, we selected 15 Maiwa yaks and 15 Jinchuan yaks which with similar age and weight, then all the animals were slaughtered after breeding 100 days. 11 slaughter traits such as were determined and analyzed statistically. The results showed that the spleen weight of Maiwa yak was 0.75 kg, higher than that of Jinchuan yak （0.57 kg）, and the difference was significant （P<0.01）, while the other indicators showed no significant difference （P>0.05）. The variation coefficients of liver weight and kidney weight in Maiwa yak were 11.28% and 14.81%, respectively, and those in Jinchuan yak were 12.39% and 11.76%, respectively, which suggesting that these two indexes have breeding potential. Three principal components were identified by principal component analysis, and the cumulative contribution rate was up to 70.844%. The first principal component could reflect the weight of yaks, the second principal component could reflect the development of spleen and liver of yaks, and the third principal component could reflect the kidney weight of yaks.
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    The chemical constituents and biological activities of Talaromyces wortmannii LGT-4
    ZHANG Xu-dong, LI Xiao-fei, YANG Zhong-duo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 106-109.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.020
    Abstract （315）      PDF （1473KB）（401）       Save
    A strain of Talaromyces wortmannii was isolated LGT-4 was activated and inoculated on the modified Martin's medium for fermentation. The compounds were separated and purified by chromatography. The inhibitory activities of acetylcholinesterase and phosphatidylinositol 3-kinase of the monomers were determined by enzyme labeling method and in vitro kinase detection kit, and the biological activities of secondary metabolites were studied. The results showed that ten known compounds were isolated and identified as Cyclo-（Pro-Ile） （1）、Cyclo（L-Tyr-L-Leu） （2）、Cyclo-（L-Pro-L-Phe） （3）、Aspergillumarin B （4）、Deacetylisowortmin （5）、Chaetominine （6）、（E）-2-（hydroxymethyl）-3-（2-hydroxypent-3-enyl）phenol （7）、N-（2-Phenylethyl）acetamide （8）、4-hydroxynaphthalide （9）、1,2-Benzenedicarboxylic acid,dibuty ester （10）. Cyclo-（Pro-Ile） （1）shoewed potent anti-acetylcholinesterase activity with IC50 value ??of 11.76 μmol/L. None of the 10 compounds showed significant activity against phosphatidylinositol 3-kinase. Compounds 1,2,3,6,8 were first isolated from this fungus.
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    Preparation and properties of polylactic acid/oregano essential oil antioxidant active packaging film
    DAI Lu, ZHANG Zi-yi, XUE Wen, SHEN Jing, TANG Li-li, LONG Ming-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 110-112.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.021
    Abstract （416）      PDF （1461KB）（215）       Save
    The polylactic acid/oregano essential oil antioxidant activity packaging films were prepared by a casting method using polylactic acid as the substrate, oregano essential oil as the antioxidant active component and Siban 80 as the plasticizer, and their properties were tested. The influence of oregano essential oils on the mechanical properties of polylactic acid packaging films was evaluated by measuring tensile strength, elongation at break and elastic modulus, the influence of oregano essential oils on the barrier propertiesof polylactic acid packaging films was evaluated by measuring water vapor transmission rate and oxygen transmission rate, the influence of oregano essential oils on the antioxidant properties of polylactic acid packaging films was measuredby radical scavenging rate. The results showed that the polylactic acid/oregano essential oil films possessed good antioxidant properties and the antioxidant effects increased with the increase of oregano essential oilconcentration. The addition of different amount of oregano essential oils had different effects on the packaging performance of polylactic acid packaging films. When oregano essential oil content reached 1.5%, the free radical scavenging rate of the polylactic acid/oregano essential oil film reached 82.6%. At this time, the thickness of the film material increased significantly to （136.2±6.0） μm, the tensile strength and elastic modulus were respectively significantly decreased to （10.0±0.9） MPa and （22.7±3.0） MPa, the elongation at break decreased slightly to （343.4±18.2）%, the water vapor transmission rate was significantly decreased to （34.7±1.2） g/m2·24 h, and the oxygen transmission rate was slightly increased to （988.3±39.6） mL/m2·24 h·atm.
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    HS-SPME-GC-MS analysis of volatile components in ebony plum and processed products
    LI Shu-fan, LIU Yi, JIANG Han-mei, LIU Tian-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 113-116.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.022
    Abstract （435）      PDF （1592KB）（165）       Save
    Use headspace solid phase microextraction （HS-SPME） and gas chromatography-mass spectrometry （GC-MS） to analyze and identify the volatile components of ebony plum, vinegar ebony plum and ebony charcoal, normalized by area Method to calculate the relative percentage of each component. The results showed that a total of 46 components were detected, 34 components were identified, 32 components were detected from ebony plum, 23 components were identified, accounting for 88.90% of the volatile components. Eighteen components were detected from vinegared ebony plum, and 14 components were identified, accounting for 82.52% of the total volatile components. 28 components and 18 components were identified from ebony charcoal, accounting for 91.93% of the total volatile components. There are 9 kinds of volatile components in the three. Compared with raw ebony products, vinegar-based ebony ume has 4 new components and 13 components are reduced, and ebony charcoal has 8 new components and 13 components. The composition and content of volatile components of ebony plum has changed significantly after vinegar preparation and charcoal frying, and the pharmacological effects are different. This method is stable and reliable, and is suitable for the rapid analysis of volatile components of ebony plum.
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    Determination of functional components and antioxidant activities of mulberry juice and mulberry wine
    YANG Jin-hong, CHEN Zheng-yu, MENG Gang, KONG Wei-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 117-119.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.023
    Abstract （438）      PDF （1804KB）（138）       Save
    The functional components and antioxidant activities of mulberry juice and fermented mulberry wine were analyzed. The results showed that the content of cyanidin-3-glucoside （C3G） of mulberry juice was （81.476±2.417） μg/mL, while none in the mulberry wine. The contents of total phenol, proanthocyanidins, flavonoids, chlorogenic acid and luteolin of mulberry juice were （6.085±0.202） mg/mL,（1.838±0.097） mg/mL,（7.675±0.142） mg/mL,（11.550±0.508） μg/mL,（6.750±0.706） μg/mL, respectively, and higher significantly than that in the mulberry wine. The scavenging rate of hydroxyl radicals in mulberry wine was better than that of mulberry juice.
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    Studies on nutrient components and heavy metals of Se-enriched rice
    ZHANG Tao, WANG Ning-bo, ZHOU Qiong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 120-122.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.024
    Abstract （493）      PDF （1455KB）（224）       Save
    The contents of water, soluble sugar, protein and heavy metals （cadmium, lead, mercury） in rice with selenium enrichment in Ankang city were determined by the corresponding method. To study whether the presence of selenium in Se-enriched rice can cause the decrease of nutrient composition or the increase of heavy metal content in rice. The results showed that the nutrient water content of Se-enriched rice was 8.047~14.055 g/100 g,soluble sugar 6.09~9.39 mg/g, protein 7.714~9.225 g/100 g, mercury 0.013 7~ 0.017 2 mg/kg, lead 0.089~0.162 mg/kg, cadmium 0.074~0.171 mg/kg, all in line with the national standard. Se-enriched rice can be accepted by the human body, and can supplement the corresponding nutrition.
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    Research and implementation of personalized travel recommendation system based on data mining
    OU Dan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 123-126.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.025
    Abstract （640）      PDF （1936KB）（270）       Save
    In order to deal with the challenge of personalized tourism recommendation brought by a large number of multimedia photos and videos in the era of big data, this paper proposes a context aware personalized tourism recommendation system based on data mining. The structure can locate and summarize the tourism location according to the given geographical tag photo set of users, and establish the tourism history of each user to obtain their tourism preferences, so as to promote the tourism. The personalized query based on context aware is used to recommend the most suitable tourist destination. Through simulation analysis, the proposed method was compared with traditional data mining algorithms such as Apriori, Eclat, decision tree and logistic regression. The simulation results verify the superior performance of the proposed method, and the final average recommendation accuracy can reach about 80%.
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    Analysis of smart tourism route planning scheme based on ant colony algorithm
    WANG Yi-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 127-130.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.026
    Abstract （599）      PDF （1920KB）（287）       Save
    In order to improve the traditional travel route planning, it takes time and effort, and the user experience is poor. This paper proposes a smart tourism route planning scheme based on ant colony algorithm. First, by describing the basic principles of the ant colony algorithm, the improvement of the basic ant colony algorithm takes a long time, and it is easy to fall into the shortcomings. The basic ant colony algorithm is improved. Compared with the basic ant colony algorithm, the range of search elements is increased. The stage of quantification, the stage of real-time update of pheromone, and the stage of pheromone rollback mechanism. Then, with the goal of spending less money on travel and getting the largest and most comfortable travel experience, the cost target and the sense of experience target are synthesized, and a travel route planning model based on ant colony algorithm is established, and the improved ant colony algorithm is used to planning model to solve. Finally, the model is applied to actual cases, and the optimal travel path that meets the requirements is obtained through calculation and analysis.
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    Research on crop pathological image classification algorithm based on convolutional neural network
    LIU Shuai-jun, KOU Xu-peng, HE Ying, MO Xue-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 131-134.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.027
    Abstract （524）      PDF （4185KB）（149）       Save
    The rapid and effective detection of crop pathology is of great significance to agriculture. It can not only improve the efficiency of automated pathology recognition, but also increase crop yields. This paper takes potato, tomato and other crops as the pathological research object, and proposes a crop pathological classification model based on convolutional neural network MFCPNet. First, build a deep convolutional neural network model, which is constructed through a convolutional layer, an activation layer, and a fully connected layer of a pooling layer. Then, the extracted image pathological features are fused with multiple features to effectively enhance the feature richness of crop pathology.At the same time, the original data set is enhanced to eliminate the problem of uneven sample distribution. The results show that the standards of the proposed crop pathology classification model are better than the AlexNet, VGG16 and VGG19 models, reaching an accuracy of 94.92%. At the same time, it eliminates the need for manual construction of complex feature projects, which has a certain value in promoting agricultural automation.
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    Establishment of high-efficiency propagation system using sterile seedling leaves in Lycium ruthenicum Murr.
    HE Feng-ming, GUO Jia-yuan, SHEN Ting, MA Guan-xue, YAN Sheng-qi, ZHANG Yun-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 135-140.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.028
    Abstract （318）      PDF （7624KB）（123）       Save
    In present experiment, based on the measurement of anthocyanins content in single dried berry, the aseptic leaves derived from the sterile seedlings of L.ruthenicum Murr. which germinated on MS medium were used as explants, and optimization condition of hormone concentration and C source combination was selected for response frequency, callus inducing frequency and plantlet forming frequency using the response surface design Design-Expert software. The results showed that the best condition for response frequency and callus induction frequency was 6-BA 0.92 mg/L, NAA 0.45 mg/L, and C source for sucrose 2.26%, respectively; And best condition for plantlet formation frequency was 6-BA 1.15 mg/L, NAA 0.38 mg/L, and C source sucrose 2.93%, respectively. Result also showed that there was a strong interaction between the carbon source combination and hormones during the callus induction process. Tissue sections showed that the the way for plantlet forming induction or shoot regeneration adopted in the experiment may be the somatic embryogenesis, and RAPD test of the offspring regeneration obtained in present showed extremely low rate of variation which suggested the excellent characteristic of mother plant would maintain in descendant derived from this propagation system.
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    Bioinformatics analysis of CRM gene family in Brassica rapa
    ZHU Bin, WANG Xiao-shuang, LUO Xi, HU Xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 141-146.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.029
    Abstract （415）      PDF （4330KB）（490）       Save
    The CRM（Chloroplast RNA splicing and ribosome maturation） genes involve in the splicing of genes containing group Ⅱ introns in mitochondria and chloroplast genome in plants. In the present study, gene number, conserved motif, isoelectric point of amino acids, molecular evolution, and expression pattern of CRM family of Brassica rapa（AA,2n=20） were well analyzed based on the bioinformatic methods. A total of 22 genes belonging to CRM gene family were identified in the B. rapa genome. These genes could be divided into three subgroups, and distributed on all the chromosomes of B. rapa except chromosome A10. The coding sequences of CRM genes ranged from 657 bp to 5 909 bp, and the isoelectric point of amino acids of these genes ranged from 4.42 to 9.89. The CRM genes in B. rapa showed specific expression in different tissues and response to different stresses, and some CRM genes were actively transcribed in leaves and stems. After dealt with Flg22 and Ps stress which can be used to simulate biotic stresses, some CRM genes significantly down-regulated, indicating these genes likely responded to the biotic stresses.
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    Dynamic changes of acid component content and related gene expression in main cultivars of Ziziphus jujuba
    TONG Pan-pan, ZHANG Ya-ruo, LIANG Feng-zhi, WU Cui-yun, WANG Jiang-bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 147-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.030
    Abstract （324）      PDF （2224KB）（174）       Save
    The contents of main acid components in the fruits of three main Jujube Cultivars （Ziziphus jujuba Mill）, Dongzao, Huizao and Junzao, were detected by high performance liquid chromatography （HPLC）, and the expression of acid metabolism related genes during the fruit development was analyzed. The results showed that the content of malic acid was the highest in the ripe fruits of the three jujube cultivars, indicating that malic acid was the main component causing the sour taste of the fruits. The contents of malic acid, citric acid and quinic acid of the three main cultivars of jujube showed the same trend during the fruit development, and all showed the trend of first increasing and then decreasing, but the contents of three acid components of Winter jujube continued to decrease after the brittle ripening stage, and the contents of lime jujube and Junjujube acid increased slightly at the full ripening stage. In the early stage of fruit development, citric acid accumulation was dominant in the three main cultivars of jujube, and malic acid rapidly accumulated and dominated from the end of white ripening stage to crisp ripening stage. ZjACO1, ZjACO2 and ZjCS3 genes were closely related to the accumulation of malic acid, citric acid and quinic acid, while ZjCS2 and ZjMDH12 genes played a certain regulatory role in the degradation of acid components in jujube fruit.
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    Research on collaborative innovation driven economic development based on coupling coordination degree evaluation：A case study of Ankang city,Shaanxi province
    ZHANG Yan, REN Yan-ni, TANG Hai-qin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 152-156.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.031
    Abstract （377）      PDF （1472KB）（215）       Save
    By constructing the corresponding index system, using complex system coordination degree evaluation model, this study evaluated the ability of municipality synergy innovation drive economic development in Ankang city. The results show that the synergy degree of the composite system of collaborative innovation resources input and performance output from 2009 to 2018 in Ankang city is non coordination-primary coordination-non coordination-primary coordination, which goes through the process of first rising, then falling and then rising. Based on this, the collaborative innovation path of “point, one line and one side” is designed, and suggestions such as strengthening policy support, strengthening talent support, building characteristic high-tech industrial parks, expanding and cultivating leading enterprises, and strengthening independent innovation ability are put forward.
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    Evaluation of land ecological security in Karst area based on evolutionary PSR model：A case study of Yongfu county,Guangxi
    YANG Chang-ming, LU Ru-cheng, LIN Shu-gao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 157-163.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.032
    Abstract （298）      PDF （1516KB）（250）       Save
    Taking Yongfu county as research object, the evaluation index system was constructed based on the evolutionary PSR model and the framework of EES and PRED models. The weight of indexes was determined by entropy method and coefficient of variation method, and the change trend of land ecological security was analyzed by comprehensive index method, and the influencing factors were explored by grey correlation method. The results show that the land ecological security level of Yongfu county is on the whole on the rise from 2006 to 2018, and the safety level is changing from less safe to more safe. The comprehensive score of land ecological security fluctuates greatly from 2006 to 2010, and it is on the whole on the rise from 2010 to 2018. The safety index of each subsystem is generally fluctuating and rising, but it has been in a state of insecurity and less security. Population pressure, economic pressure, environmental pressure and resource state are the main factors affecting the level of land ecological security.
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    Analysis of family farm operating efficiency and its influencing factors in Shanxi province：Take 400 family farms as an example
    JIN Xin-ting, MENG Zhi-xing, MENG Hui-sheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 164-169.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.033
    Abstract （380）      PDF （1488KB）（212）       Save
    The improvement of operating efficiency of family farms is crucial to the healthy development of family farms. Based on the questionnaire survey of 400 family farms in Yuncheng city, Shanxi province, this study used DEA-Tobit model to estimate the comprehensive efficiency of family farms, and analyzed the key factors affecting the efficiency. The results show that the comprehensive efficiency of family farms in Shanxi province is generally low, and the pure technical efficiency is obviously lower than the scale efficiency. The improvement of the comprehensive efficiency largely depends on the improvement of the scale efficiency. There is an “inverted U-shaped” curve relationship between land management area and comprehensive efficiency of family farms. Too large or too small land scale is not conducive to the improvement of management efficiency. The operators’ age, working experience in agriculture, term of operation right contract, government subsidies, whether to borrow the loans and other factors have a positive effect on the operating efficiency, in which the loan has a significant effect on the operating efficiency of family farms; The labor input and the purchase of farm machinery services restrain the operating efficiency. Therefore, measures such as improving rural financial market, expanding agricultural technology promotion channels, perfecting land transfer mechanismand strengthening the education and training of operators will effectively improve the operating efficiency of family farms.
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    Study on the influencing factors based on APH-Entropy weight：Take sustainable development of tourism characteristic towns in Shangluo city as an example
    DU Hong-le, ZHANG Yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 170-174.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.034
    Abstract （347）      PDF （1475KB）（360）       Save
    The sustainable development of characteristic towns is of great significance to the sustainable development of urban and rural areas and the realization of rural revitalization strategy. Timely discussion on the factors affecting the sustainable development of characteristic towns will help to enhance the sustainable development and competitiveness of characteristic towns. According to the characteristics of tourism function of characteristic towns in Shangluo city, Delphi method is used to screen the evaluation indexes of tourism characteristic towns. The factors influencing the sustainable development of tourism characteristic towns are discussed from four aspects of environment, economy, society and development support with the method of analytic hierarchy process and entropy weight method. Finally, countermeasures and suggestions are put forward for the sustainable development of tourism characteristic towns in Shangluo city.
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    Research on the integration development of intangible cultural heritage development and eco-cultural tourism in Shangluo
    WANG Xin-xin, WANG Yi, GUO Meng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 175-179.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.035
    Abstract （391）      PDF （1637KB）（273）       Save
    On the premise of inheriting and protecting the intangible cultural heritage, the rational development and utilization of Shangluo intangible cultural heritage was discussed, the conditions for the development of Shangluo intangible cultural heritage and eco-cultural tourism industry were analyzed, and Shangluo intangible cultural heritage resources and eco-cultural tourism resources were integrated. Based on the existing problems in the current development, it is proposed to establish a cultural and ecological museum, create a tourism project with the theme of “intangible cultural heritage+ecological culture”, establish Shangluo Huagu Tourism Ecological Park, and carry out cultural live performances and develop cultural and creative tourism products of intangible cultural heritage, in order to promote the integrated development of Shangluo intangible cultural heritage development and eco-cultural tourism.
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    Research on the regional brand construction strategy of Ankang Se-enriched tea based on SWOT-CLPV model
    ZHENG Ming-zhe
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 180-184.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.036
    Abstract （356）      PDF （1435KB）（176）       Save
    In order to find out the influencing factors of Ankang se-enriched tea regional brand construction accurately, and then improve its development level, based on the full analysis of Ankang se-enriched tea regional public brand construction advantages, disadvantages, opportunities and threats in the external environment, SWOT-CLPV model was used to analyze four competitive situations： Leverage, control, vulnerability and problem. Finally, combined with the actual situation, the countermeasures are put forward, such as accelerating the development of ecological selenium rich resources, strengthening the standardization construction of tea garden, expanding leading enterprises, strengthening the talent introduction and education.
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    Research on the contribution of green food to the green development of agriculture
    ZHAO Jian-kun, YANG Yuan-tong, LI Xian-jun, SHEN Yue, WANG Zong-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 185-189.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.037
    Abstract （486）      PDF （1464KB）（265）       Save
    Green food adheres to the concept of safety, high quality, environmental protection and sustainable development, and is the pioneer and practitioner of the green development of agriculture. The impacts of green food in agricultural such as fertilizer reduction, pesticide reduction, emission reduction, and quality and safety of agricultural products were studied, and the contribution of green food to the agricultural ecological environment and quality and safety of agricultural products was expounded. It is expected to provide reference for the green development of agriculture and the high-quality development of green food.
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    Analysis on the spatio-temporal evolution of the city-industry integration of Yangtze river delta under the guidance of humanism
    ZHU Meng-ting, XIE Yu-han
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 190-195.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.038
    Abstract （369）      PDF （4053KB）（196）       Save
    Based on the coupling coordination degree model, this study constructed a human-oriented evaluation system for regional cities, and then studied the level of the city-industry integration development of Yangtze river delta urban agglomerations from 2008 to 2017 as well as its spatio-temporal evolution characteristics. The results show that the city-industry integration development level of most cities in the zone has been improved from 2008 to 2017, but it is not balanced. The integration of provincial capital cities have developed rapidly and at a high level, while most cities in Anhui province are generally in a relatively backward position, and the system of benign development has not yet been formed. Every city should fully consider the relationship among the people, production and urbanization in the construction of new-type urbanization in order to improve the level of city-industry integration. At the same time, effective cooperation mechanism can be established between cities to promote regional sustainable development.
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    Research on the absence and complement of the city returns elite in China under the background of rural revitalization：A case study of Jiangcheng and Jinping counties on the border of Yunnan and Vietnam
    LIU Bing-bing, SU Guo-xian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (9): 196-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.09.039
    Abstract （416）      PDF （1436KB）（463）       Save
    Based on the investigation of poverty alleviation in border villages, this paper analyzed the influencing factors and reality of the absence of people and elites in border villages, as well as the challenges of village hollowing out and population structure imbalance to rural revitalization, and cited the key role of the city returns elite in rural revitalization from two aspects of game theory and practical cases. Based on the value orientation of urban return, it puts forward the path of leading the city returns elite to revitalize rural areas from the aspects of financial support, policy guarantee, basic planning, industrial innovation, so as to help rural revitalization and development in remote areas in the new era.
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    Research progress on soil inorganic carbon
    ZHANG Yong-hong, LIU Fei, ZHONG Song
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 5-5.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.001
    Abstract （1552）      PDF （1681KB）（640）       Save
    Soil carbon pool is the largest carbon pool in terrestrial ecosystems. It plays a very important role in regulating global climate change and ecosystem carbon cycle. Soil inorganic carbon（SIC） is the second largest carbon pool in the soil, second only to soil organic carbon（SOC）,which mainly exists in arid and semi-arid areas. In this paper, the distribution and influencing factors of soil inorganic carbon, the mechanism of soil carbon sequestration and the application of carbon stable isotope technology are discussed,aiming to emphasize the role and status of soil inorganic carbon in global climate change and carbon cycle. We should strengthen the research on the role of soil inorganic carbon in terrestrial ecosystem, and deeply explore the cycling process of soil inorganic carbon, so as to provide reference for correctly determining the carbon source and sink function of terrestrial ecosystem.
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    Research progress of CD147-related complexes in tumor function
    LIU Jing, XU Bing-hong, WANG Li, JIAO Wen-hao, ZHANG Wei, DONG Min-min, YAN Han-chi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 10-14.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.002
    Abstract （474）      PDF （1541KB）（215）       Save
    CD147 is also known as Basigin or extracellular matrix metalloproteinase inducer （EMMPRIN）, which belongs to the immunoglobulin superfamily （IgSF）. The complex formed by CD147 can affect the proliferation, adhesion, invasion, metastasis and energy metabolism of tumor cells through a variety of ways. CD147 is highly expressed in malignant tumors, it has been used as a marker for prognostic evaluation of multiple tumors and a potential therapeutic target. At present, some progress has been made in the use of CD147-directed antibodies to treat tumors. This article mainly reviews the function of CD147 complex in tumors and the use of CD147 as a potential therapeutic target.
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    Comparative test results, evaluation of20rice varieties under the rice shrimp cultivation
    WU Yun-zi, ZHANG Hua, XIE Lei, XU Zheng-meng, XU Guo-hua, XU Hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 15-17.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.003
    Abstract （579）      PDF （1520KB）（510）       Save
    Taking 20 rice（Oryza sativa L.） varieties as materials， the rice cultivars comparative test was carried out， and the aspects of growth period， yield， quality and resistance of those varieties were compared，the character performance and adaptability of each variety under rice shrimp cultivation mode were analyzed. The results showed that eight varieties including Fudao88， Taoyouxiangzhan，Y liangyou 911， Xiadao No.1， Yinliangyou 851， Xinliangyou 188， Anhui No.1and Fujian No.1，and these varieties with high yield， moderate growth period and good comprehensive characteristics could be planted as shrimp rice varieties.
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    Evaluation of wheat leaf rust resistance of 55 winter wheat varities in Henan province
    SHEN Hai-long, CHEN Li, CAO Yong-zhou, ZHAO Yong-tao, YUAN Qian, FAN Zhi-ye, HOU Yan-hong, CHEN Qi, LIU Di, LI Shi-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 18-20.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.004
    Abstract （581）      PDF （1536KB）（465）       Save
    The resistance to leaf rust（Puccinia triticina） of 55 winter wheat varities（lines） popularized in Henan province was indentified in 2017 and 2018, under natural condition. The results confirmed that, only Huaihe 12013 showed high resistance（HR） both in the 2 years;there were 7 varieties （lines）, Fanmai No.8, Luomai 33, Xuke 316, Xinmai 0208, Zhengmai 103, Luomai 26 and Zhoumai 22 showed resistance（HR or R） in the 2 years, accounting for 12.73% of the total number of identified varieties. The 40 varieties were identified as high susceptibility for 2 consecutive years,accounting for 72.73% of the total number of identified varieties.
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    Quality screening analysis of different potato varieties
    WEN Hai-xia, TANG San-ming, SU Xiu-li, WU Guo-wen, ZHU Jie, FANG Zhi-guo, CHEN Fei, ZHAO Hong, FENG Peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 21-25.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.005
    Abstract （552）      PDF （1541KB）（256）       Save
    The comprehensive identification and quality determination of 9 introduced potato varieties were carried out in the field, and the nutritional quality content of tubers of each variety was detected and analyzed. The results showed that the order of comprehensive quality and acceptance degree of tested potato varieties from good to bad was Huashu No.3>Ziyu>Huashu No.5>Zhongshu No.13>Zhongshu No.3>Hongmei>Zhongshu 191>Dongnong 310>Zhongshuhong No.1, two better varieties were Dongnong 310 and Huashu No.3.
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    The mechanism analysis of multiple conversion during the January 2018 precipitation type in Hunan
    CHANG Li-wei, XIE Na, LIU Jie-xiong, LIN Nan, LI Xiao-kun, HUANG Zhuo-yu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 26-32.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.006
    Abstract （375）      PDF （15937KB）（178）       Save
    Using ground, high altitude conventional meteorological observation data and NCEP/NCAR FNL 1°×1° 6 h analysis data, the temperature stratification characteristics under different precipitation phases and the mechanism of multiple phase transition was analyzed during the January 2018 precipitation type in Hunan. The results showed that the cold rain and snow freezing weather process was generated under the background of cold wave outbreak and large-scale circulation with active low trough in mid-latitude; The temperature characteristics of the middle-lower layers of different phases were obviously different. In freezing rain phase, the inversion layer appeared higher, during the freezing rain period, the frontal inversion thickness was thinner than 70 hPa, and the gradient was significant. There were obvious warm layers near and below 800 hPa. The warm layer thickness was thickest, and the temperature stratification had the structural characteristics of cold layer-warm layer-cold layer. When snow falled, the frontal inversion thickness was thicker than 100 hPa, the inversion gradient was weaker than that of freezing rain, and there was no warm layer or shallow warm layer. Temperature stratification often had the structural characteristics of ice crystal layer-cold layer （weak warm layer-cold layer）. NCEP/NCAR FNL temperature could reflect the actual temperature in a certain extent. There was a process mechanism of “over-cooling and warm rain” in frozen rain, and the precipitation mechanism of cold cloud was obvious in snowfall. The strong cold air of the ground and the active downward movement of the southern branch front were the main reasons for the rapid phase transition. The intensification of low-level convergence and the abnormal enhancement of the southwest jet of 700 hPa were the direct reasons for the rapid transformation from snow to freezing rain. The multi-layer convergence and divergence structure during freezing rain period was conducive to the formation of cloud water and rainwater in the middle and lower layers, and to the stable maintenance of the warm stratification in the middle layers.
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    Study on the treatment of village sewage and urease activity of soil in cultivated paddy field
    CHEN Jie, CHEN Jie, WANG Yi-chao, PENG Ming-guo, GUI Song, ZHANG Wen-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 33-37.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.007
    Abstract （432）      PDF （2979KB）（172）       Save
    In order to study the efficiency of cultivated paddy field wetland in absorbing village sewage and the urease activity of paddy soil, and to reveal the changing law of nitrogen, phosphorus and other nutrient elements in sewage with the growth of rice and the transformation characteristics of nitrogen, a low load level subsurface flow paddy field wetland was constructed with paddy field as the carrier, and the relationship between the urease activity of paddy field wetland soil and the growth of rice and the effect of sewage treatment was analyzed. The results showed that when the rice was in tillering stage, the average removal rates of COD, TP, NH3-N and TN were the highest and 47.2%, 84.0%, 78.9% and 68.6%, respectively, and the effluent quality indexes could reach the class V of environmental quality standard for surface water （GB 3838—2002）. The changes of urease activity and the relationship between urease activity and nitrogen transformation in cultivated paddy field wetland showed that during the whole rice growth cycle （July to November）, the content of urease activity in soil reached the highest level in rice tillering stage, and then decreased slowly. At the same time, due to the rich microorganism in wetland soil, the content of urease in soil layer was higher than that in filling layer in rice growth stage. After the sewage enters into the wetland, the consumption of ammonia nitrogen drove the stimulation growth of urease, and the urease activity in the soil was significantly related to the total nitrogen.
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    Exploration of the spatial non-stationary relationship between soil texture and spectra from a multiscale perspective
    ZHENG Yu-zhen, CHEN Yi-yun, CHEN Min, WU Zi-hao, JIANG Jiang-jun-nan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 38-45.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.008
    Abstract （491）      PDF （6595KB）（253）       Save
    A total of 210 samples collected from the Qilu lake basin were used. The performances of partial least squares regression （PLSR）, geographically weighted regression （GWR） and multi-scale geographically weighted regression （MGWR） in measuring soil texture were evaluated, and the spatial heterogeneity of the relationship between soil texture and spectra under different scales were explored. The results showed that the R2, mean absolute error and root mean square error of MGWR were better than those of GWR and PLSR, which indicated that MGWR outperformed other models. This was because MGWR can better fit the relationship between soil texture （clay, silt and sand contents） and spectra by considering different scales of different variables coefficients. MGWR results revealed that the spatial scale of spatial response of different spectral latent variables to clay, silt and sand content was different. Specifically, the spectral latent variable LV1 had the largest response to soil texture. Its standardized coefficients of clay, silt and sand contents were 0.373, 0.426 and 0.422, respectively.
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    Analysis of lake and lake shoreline evolution in Hubei province in recent 30 years based on Google Earth Engine
    LIAO Wen-xiu, CHEN Yi-yun, ZHAO Xi, WEN Xu-chang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 46-54.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.009
    Abstract （685）      PDF （9511KB）（1059）       Save
    Based on the remote sensing data processing cloud platform Google Earth Engine（GEE）, combined with normalized differential water body index（NDWI） and JavaScript programming, the rapid identification of large and medium-sized lakes was carried out in Hubei province from 1990 to 2019. Based on this, shoreland extraction, morphological index calculation and driving mechanism analysis of lake evolution were carried out. The results showed that the lake area decreased by 361.64 km2 in 1990—2019, with a trend of decreasing first, then increasing and then decreasing. Farmland and pond were the main types of land transferred into and out of lakes. The length of the shoreline fluctuates with a total decrease of 2 406.77 km, and the mean value of the shoreline development coefficient and fractal dimension did not change significantly. The lakes with similar shoreline development coefficient had similar shoreline surrounding environment.
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    The design of the drought weather index insurance of summer corn in Langfang city ——A case study of Bazhou city
    HOU Qi-qi, YANG Shuai, GENG Xue-ying, GAO Yu-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 55-59.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.010
    Abstract （396）      PDF （1561KB）（236）       Save
    In order to establish the drought weather index insurance model of summer corn, the daily meteorological data from 1980 to 2018 and the summer corn output data from 1993 to 2018 at the Bazhou city agricultural meteorological observation station in Langfang city were used to research the relationship between summer corn and drought. Based on the water deficit rate, a summer corn drought weather index was constructed, and the relationship between summer maize drought weather index and relative weather yield was analyzed. The summer corn damage model was constructed, and the summer corn drought insurance compensation standard was proposed. The net drought insurance rate was determined and the summer corn drought weather index insurance product was designed. The results showed that the drought in the jointing period to milk maturity period had the greatest impact on summer corn yield. The drought meteorological index of jointing-milk maturity period and full growth period were selected for disaster damage analysis, the yield reduction rate model was constructed, and summer corn was divided into four gradesLight drought, moderate drought, heavy drought and severe drought. The compensation standard of summer corn drought insurance was proposed. when the drought weather index was greater than 40%, the claim was started. In the jointing period to milk maturity, the net insurance premium rate was 5.6%, and the corresponding premiums was 357.6 yuan/hm2. In the whole fertility period, the net insurance premium rate was 6.5%, the corresponding premiums was 395.7 yuan/hm2.
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    The production-life-ecological space transformation and ecological effect analysis of Pingshan county
    XIANG Xiao-yu, LI Feng, OUYANG Xin, SHANG Jia-ning, SHAO Huai-yong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 60-63.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.011
    Abstract （498）      PDF （2917KB）（299）       Save
    Pingshan county, Hebei province was used as the research area. Through the construction of the “ ecological-production-living” spatial classification system, the land use transfer matrix and the ecological environment quality index were used to study the spatial change and ecological environmental effects of Pingshan county.The results showed that the proportion of living production space and ecological space increased, while the proportion of ecological production space decreased, the proportion of production ecological space first decreased and then increased; The regional environmental quality index of Pingshan county in 2005, 2010 and 2015 were 0.450 4, 0.571 9, 0.580 0, respectively.
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    Study on spatial distribution of grape chilling injury in Guangxi based on SURFER technology
    WU Xuan-ke, HUANG Wei, LIU Yong-yu, YAO Yu-qun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 64-66.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.012
    Abstract （349）      PDF （3506KB）（158）       Save
    Based on the meteorological data of 91 national meteorological observation stations from 1961 to 2016, the occurrence frequency of low temperature chilling injury in the period of sprouting and new shoot growth （February to March）, flowering and fruiting （April to May）, fruiting and peak growing season （May to June） in Guangxi was calculated. Based on SURFER technology, the spatial distribution characteristic of the occurrence frequency of low temperature chilling injury in Guangxi was obtained. The results showed that during the period of sprouting and new shoot growth （February to March） and flowering and fruit setting （April to May）, chilling injury became the main meteorological disaster factor limiting grape production in Guangxi. According to the spatial distribution of chilling injury of grape, Guangxi was divided into mild chilling injury area, moderate chilling injury area, severe chilling injury area and severe chilling injury area.
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    Synthesis,biological activity and translocation of L-Glu-amicarthiazol conjugate in tobacco plants
    CHANG Yue, LI Jun-kai, CHEN Shun-shun, XU Han-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 67-71.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.013
    Abstract （437）      PDF （1564KB）（213）       Save
    L-Glu-amicarthiazol conjugate was synthesized using L-glutamic acid and amicarthiazol as raw materials, and its structure was characterized by 1 H NMR, 13C NMR and mass spectrometry. The indoor toxicity of compounds against rice sheath blight were evaluated by the mycelial growth rate method. High performance liquid chromatography （HPLC） was used to detect the translocation of compounds on tobacco plants through leaf coating and hydroponic treatment. The results showed that compared with amicarthiazol, L-Glu-amicarthiazol conjugate retained the inhibitory activity against rice sheath blight to a certain extent, and its EC50 against rice sheath blight was 13.76 μmol/L （The EC50 of amicarthiazol against rice sheath blight was 12.47 μmol/L）. The uptake and translocation of L-Glu-amicarthiazol conjugate in tobacco was significantly increased compared with that of the amicarthiazol.
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    Distribution of Pomacea canaliculata under natural light
    GUO Jing, CHEN Ying-tong, CHEN Shuo, CHEN Hai-ying, DING Si-min, HUANG Hong-ying, ZENG Jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 72-76.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.014
    Abstract （605）      PDF （1898KB）（292）       Save
    The distribution law of Pomacea canaliculata under natural light was studied. The distribution of Pomacea canaliculata under natural light at different time（9：30,12：00,14：30） in aquarium was investigated for days, the difference in density of Pomacea canaliculata between inside and outside the shadow in the same water depth and time was analyzed, repeated measures ANOVA was used to determine the effects of sunlight, water depth, time and snail individual size on distribution of Pomacea canaliculata. The results showed that sunlight and time in a day had obvious effect on distribution of the snails. At the water depth of 5, 10, 20 cm, the density of Pomacea canaliculata in the shaded area was obviously higher than that in the sunshiny region at 12：00. The different between shade and lighting area in snail density was highest at 12：00 and lowest at 9：30, that meant more snails tended to stay in the shading area when the time was closer to noon. But the distribution of Pomacea canaliculata had not been significantly impacted by water depth and snail individual size. Thus, the natural light could affect the distribution of Pomacea canaliculata in water, the distribution density of the snails in sunshiny region and shaded area exhibited regular change, the snail can crawl to shade away to avoid direct sunlight, this might be related to water temperature, illumination intensity, and so on.
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    Observation and analysis on field resistance of 20 main rice varieties to diseases and insect pests in Hubei province
    LYU Liang, CHANG Xiang-qian, WANG Zuo-qian, YANG Xiao-lin, ZHANG Shu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 77-81.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.015
    Abstract （560）      PDF （1550KB）（519）       Save
    The field performance resistance of 20 main rice varieties to diseases and insect pests were analyzed, by using the method of natural induction and field survey on the occurrence of diseases and insect pests. The results showed that the overall resistance of the main varieties to several common diseases and insect pests of rice was not ideal, and the varieties of Guangliangyou 476, Ezhong 5, Huanghuazhan, Tianyou huazhan and C-Liangyouhuazhan had better resistance to diseases and insect pests, and the occurrence and damage degree of diseases and insect pests were relatively light, which was suitable for popularizing planting in Hubei province. However, the planting area of Shenliangyou 5814 was suggested to be reduced and controlled as far as possible due to the relatively heavy disease and insect occurrence.
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    The occurrence regularity and control measures of Milionia basalis Walker
    LUO Ji-feng, FANG Yi-ran, JIANG Dan-zhi, DENG Mei-hua, YU Xiao-dong, LI Qi-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 82-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.016
    Abstract （904）      PDF （8708KB）（187）       Save
    AbstractThe morphological characteristics, living habits, occurrence and damage of Milionia basalis Walker were observed and studied in detail. The causes of the outbreak in eastern Guangdong were analyzed. The results showed that Milionia basalis Walker was a typical oligotrophic insect that mainly feeds on the leaves of Podocarpus macrophyllus and Podocarpus nagi. The suitable climate environment in the east of Guangdong province, the large area planting and the neglect of management were the main reasons for the outbreak of the pest. Finally, according to the causes of the outbreak of the pest, the comprehensive control measures were proposed.
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    Effects of intercropping soybean on growth environment,yield and quality of Pinellia ternata（Thunb.）Breit
    ZHU Zhen-xing, BAO Wan-yu, JINAG Lin-bo, ZHONG Shu-mei, MA Yi-ping, SHU Shao-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 85-90.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.017
    Abstract （605）      PDF （2435KB）（157）       Save
    The effects of intercropping soybean on the growth and quality of Pinellia ternata（Thunb.）Breit were studied. Under normal Pinellia ternata（Thunb.）Breit sowing density,three soybean planting distances of 35 cm, 50 cm and 65 cm were adopted to measure the changes of Pinellia ternata（Thunb.）Breit growing environment, growth, yield and quality of Pinellia ternata（Thunb.）Breit, then the land equivalent ratio and interspecies competitiveness under the intercropping system were further analyzed. The results showed that with the increase of soybean planting density, the canopylight intensity, the leaf surface temperature and the soil temperature of Pinellia ternata（Thunb.）Breit were all decreased, whereas the main leaf area, petiole length and SPAD value of Pinellia ternata（Thunb.）Breit were significantly increased in the inter cropping system. The land equivalent ratio in the intercropping system increased, and soybean was more competitive than Pinellia ternata（Thunb.）Breit; Intercropping soybean significantly increased Pinellia ternata（Thunb.）Breit yield and thousand-grain weight. Under the condition of soybean with the 50 cm plant spacing had the highest Pinellia ternata（Thunb.）Breit yield, an increase of 42.9% compared to Pinellia ternata （Thunb.）Breit monoculture; The quality of Pinellia ternata（Thunb.）Breit had no significant difference compared with the control,and all meet the requirements of Chinese pharmacopoeia. Intercropping soybean provides a better growing environment for Pinellia ternata（Thunb.）Breit, strengthens the growing tendency of Pinellia ternata（Thunb.）Breit and increases the yield.
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    Study on the best harvest time of Marsdenia tenacissima
    HAN Jun, SHEN Xue-mei, LONG Guang-qiang, YU Shan, YANG Pi-qiong, ZHANG Yu-rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 91-94.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.018
    Abstract （570）      PDF （1566KB）（232）       Save
    The stem diameter and length of Marsdenia tenacissima at different growth stages were determined. The optimum harvest time of Marsdenia tenacissima was studied,the content of total saponins in Marsdenia tenacissima at 462 nm was determined by using vanillin perchloric acid method. The results showed the content of total saponin reached the highest at two-year-old, and then decreased slowly. The yield increased fastest at the age of 3 years, and then increased slowly. Therefore, the best harvest time of Marsdenia tenacissima was at two-and-a-half years old to three-years old when both the yield and the content of its effective constituent, saponins, had reached their highest levels.
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    Analysis of garden design method of nursing home from the perspective of rehabilitation landscape
    GAO Jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 95-98.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.019
    Abstract （478）      PDF （1502KB）（270）       Save
    Under the background of entering into the aging society in our country, nursing institutions for the aged has become the main part of old-age service system construction, and its garden environment design should reflect the characteristics of landscape rehabilitation, which can help the old people recover physically and mentally, make them enjoy high quality of senile life, and improve space utilization to obtain good social and economic benefits. The author expounds from the following three aspects,the meaning of outdoor environment of nursing institutions to the elderly, the physical and mental characteristics of old people, the use and design of nursing institutions, putting forward some designing strategies of selecting the environment and layout, the organization of tour line to the plant landscape, so as to provide some reference suggestions to related projects in the future research.
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    Evaluation of rehabilitation landscape of Wanghu park in Beijing based on AHP
    GAO Shuang, FENG Yan, GUO Yue, KONG De-zheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 99-104.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.020
    Abstract （379）      PDF （3882KB）（191）       Save
    Taking Beijing Wanghu park as the research object, the leisure meditation environment, sensory experience environment, horticultural therapy environment, fitness and entertainment environment, and convalescent environment are selected as the community park's rehabilitation landscape evaluation indicators through field investigation and analysis, questionnaire survey and literature reading. The rehabilitation landscape evaluation system uses Yaahp analytic hierarchy process（AHP） software to process and analyze the survey data, evaluate the current situation of the rehabilitation landscape in Wanghu park, and put forward reasonable optimization opinions. The results show that the weights of the five evaluation criteria ranged from high to low are fitness entertainment environment （0.449 3）>sensory experience environment （0.266 1）>leisure meditation environment （0.147 8）>convalescent environment （0.101 2）> horticultural therapy environment （0.035 5）. The comprehensive score of the rehabilitation landscape of Wanghu park is 0.210, and the evaluation grade is Ⅲ.
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    Isolation and identification of pseudorabies virus HuB2020 strain
    ZHAI Yao, ZHOU Dan-na, LIANG Wan, YANG Ke-li, YUAN Fang-yan, GUO Rui, LI Peng, TIAN Yong-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 105-109.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.021
    Abstract （509）      PDF （2882KB）（128）       Save
    A strain of porcine pseudorabies virus：HuB2020 was isolated and purified from clinical materials, and a series of studies were carried out on its virulence, culture characteristics and genetic variation. The results showed thatthe nucleotide sequence of gE gene in this strain was 98.9%~99.9% with that of PRV （Pseudorabies virus,PRV） strain in China. TCID50 of purified virus on PK15 cells was determined to be 107.5/mL. The LD50 of 6-week-old Kunming mice was 1×105.7. Tissue sexual distribution showed that,106.0TCID50/0.1 mL, 105.0 TCID50/0.1 mL challenge groups showed 100% neurotropism to mice,and the detection rate of the virus in brain tissue and heart tissue was higher than other tissues.
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    Analysis of muscle tenderness and muscle fibers properties of the Aba Tibetan chicken
    YANG Xiao-lin, SU Yuan-jun, LI Xing-liang, YU Chun-lin, YANG Chao-wu, WANG Rong-fang, WU Jin-bo, ZHANG Yan, QIU Yun, MOU Sang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 110-113.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.022
    Abstract （454）      PDF （2100KB）（316）       Save
    AbstractThe difference of the muscle fiber diameter,density and the shear force of breast muscle among the three Aba Tibetan chicken strains, as well as the relationship between each index and muscle tenderness were analyzed the histological differences in muscle fiber development of Aba Tibetan chicken. The three Aba Tibetan chicken strains were selected as the research objects in the experiment, the number and density of muscle fibers in the breast and leg muscle of the chickens were measured using tissue sectioning technology, and the breast muscle were tested for shearing force, whose results showed that the average breast muscle fiber diameters of the three strains were longer than the leg muscle, but the density of muscle fibers was lower than the latter. And the difference in the diameter and density of the leg muscle muscle fibers in the three strains were not significant, and none of them reached a significant level. The shearing force of breast muscle of the lightest A-Zang 1 line was only 79.36 N, which is significantly lower than that of the A-Zang 2 and 3 line, which shows that the breast tenderness of the A-Zang 1 line was the best among the three lines.
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    Analysis, evaluation of nutritent composition in the muscle of Vibrissaphora leishanensis
    MENG Li-xia, ZHU Xiu-fang, ZHANG Wen-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 114-118.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.023
    Abstract （431）      PDF （1559KB）（189）       Save
    To understand the nutritional status of Vibrissaphora leishanensis and provide the reference for its resource development， utilization and protection， general nutrients and amino acids of Vibrissaphora leishanensis were determined. The experimental results showed that：The contents of water， crude protein， crude fat， crude ash and dietary fiber of male and female Vibrissaphora leishanensis respectively were 80.84% and 84.12%、17.09% and 13.23%、1.25% and 1.01%、0.66% and 0.53%、0.25% and 0.19%， the energy was 2.64 MJ/kg and 2.06 MJ/kg. The composition of amino acids of in muscle male and female Vibrissaphora leishanensis were the same， 17 amino acids were detected. The total amino acids of male and female Vibrissaphora leishanensis respectively accounted for 87.659% and 87.566% of the dry samples. Seven essential amino acids （EAA） of male and female Vibrissaphora leishanensis respectively occuped 36.010% and 35.867% of total amino acids， the ratio of essential amino acids to nonessential amino acids was 84.70% and 84.46%， which were close to （or better than） the ideal mode of FAO /WHO （40% and 60%）. Delicious amino acid of male and female Vibrissaphora leishanensis respectively accounted for 27.345% and 27.367% of the total amino acids. Amino acid score （AAS） and chemical score （CS） indicated that the first limiting amino acid of Vibrissaphora leishanensis was valine， the second limiting amino acid was lysine. The essential amino acid index （EAAI） was respectively 88.63 and 88.13. There was no significant difference in nutritional composition of male and female Vibrissaphora leishanensis.
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    The development of konjac oligosaccharide multigrain biscuit
    ZHANG Chen, ZHOU Qiong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 119-123.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.024
    Abstract （376）      PDF （1572KB）（249）       Save
    Taking wheat flour， oats， buckwheat and konjac oligosaccharides as the main raw materials and sensory evaluation as the reference index， the optimum formula of konjac oligosaccharide biscuit was determined by single factor test and orthogonal test. The optimum technological parameters and formula of konjac oligosaccharide biscuits were baking temperature 190 ℃/170 ℃， wheat flour 100.0 g， oat 25.0 g， buckwheat 30.0 g， konjac oligosaccharide 3.0 g， milk powder 9.0 g， egg 25.0 g， butter 40.0 g， xylitol 22.0 g， sugar 5.0 g， salt 1.0 g， sodium bicarbonate 0.8 g， ammonium bicarbonate 0.2 g. The prepared konjac oligosaccharide biscuit has crisp taste， yellow to golden color and uniform thickness.
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    Study on microwave-assisted enzymatic extraction method of anthocyanins from purple cabbage
    MEN Mei-fu, LU Jia-cheng, ZHANG Xin, XIN Jian-hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 124-128.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.025
    Abstract （420）      PDF （1588KB）（390）       Save
    Taking purple cabbage as the research object, the microwave-assisted enzymatic extraction method of anthocyanins was established.The results showed that microwave-assisted enzymatic extraction method showed higher extraction efficiency. The optimum conditions were temperature 50 ℃, enzyme dosage 1.1%, solid-liquid ratio 1∶15（g∶mL）, pH 7, microwave power 360 W, enzymolysis time 60 min, microwave time 3 min.
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    Design of provincial meteorological big data storage model
    XIA Zheng-long, ZHONG Yan-wen, ZHENG Qiu-sheng, ZHU Liang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 129-132.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.026
    Abstract （453）      PDF （4072KB）（209）       Save
    Referring to the mature meteorological data storage ideas of traditional storage technology and the research results of meteorological big data storage technology of meteorological departments at all levels at present, a set of provincial meteorological big data storage model based on big data related technology from the storage and index of structured and unstructured meteorological data was designedthe results showed that unstructured meteorological small files use Avro to design data mode, According to the storage rules,are merged and packaged as the Avro format files and stored on HDFS to reduce the number of files and save the consumption of memory resources; Based on HBase, put forward the design idea of wide table storage for regular structured meteorological data, including tables, column fields and row keys; Elasticsearch is used to design a unified provincial meteorological big data storage index library to unify the retrieval entrance and improve the retrieval efficiency. The design ideas and the use of related technologies in this paper can provide reference for provincial meteorological departments to carry out the storage planning and scheme formulation of meteorological big data.
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    Design of smart agriculture management system based on Internet of Things
    WANG Jie-hua, HONG Li-fang, XU Jin-li, LIU Xiao-bin, YANG Lie-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 133-136.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.027
    Abstract （1159）      PDF （2095KB）（572）       Save
    The multi-sensor applications will be combined to design and implement a smart agricultural management system based on the Internet of Things. The system collects real-time environmental parameters such as surrounding temperature, soil temperature and humidity, soil trace elements, carbon dioxide concentration, and solar light quantum in a multi-point layout, and uses multi-source data information to scientifically guide agricultural production entities. Research the content of multi-sensor information fusion, data information processing methods, automatic control effects and multi-scale environmental control in the network, real-time monitoring of comprehensive agricultural ecological information, realize accurate automation, information and intelligent control of crops, and effectively improve agricultural production efficiency.
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    Study on mechanism of heat-clearing and detoxifying efficacy of Flos chrysanthemi based on systems pharmacology
    WANG Chun-hua, QU Xue-jia, KONG Ling-yu, SUN Xue-fang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 137-141.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.028
    Abstract （414）      PDF （7309KB）（151）       Save
    Based on the method of systems pharmacology, the mechanism of heat-clearing and detoxifying efficacy of Flos chrysanthemi was explored. The TCMSP, Drugbank, STRING, DAVID, BIOGPS and others online databases were used for selecting the core compounds, building network, selecting the core targets, analyzing the signal pathway and meridian channel tropism. The heat-clearing and detoxifying efficacy of Flos chrysanthemi mainly through 21 compounds, including quercetin, kaempferol, luteolin and Naringenin, acting on 255 targets. The core targets of Flos chrysanthemi involved JUN, TP53, AKT1, MAPK3, MAPK1, RELA and TNF. GO function enrichment analysis yielded 146 GO entries. KEGG enrichment analysis showed that targets of Flos chrysanthemi mainly act on inflammatory and immune related signaling pathways. Through the analysis of meridian channel tropism of targets, the core targets of Flos chrysanthemi was mainly located in the lung, smooth muscle and liver. The Flos chrysanthemi may play the role of heat-clearing and detoxifying efficacy through the pharmacological function of quercetin, kaempferol, luteolin and other core compounds in lung, liver and other organs, and its mechanism was related to the regulation of inflammation related signal pathway through AKT1, TNF and other targets to play an anti-inflammatory role.
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    Expression of the Haemophilus parasuis sodA gene and the study on its physicochemical properties
    HU Ji-xiong, WANG Xi, LI Guo-pan, RONG Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 142-147.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.029
    Abstract （435）      PDF （2224KB）（186）       Save
    In order to study the activity and physiological function of the SOD protein encoded by the sodA gene of Haemophilus parasuis, the sodA gene was amplified from HPS by the specific primers and expressed in Escherichia coli prokaryotic expression system. The expressed protein was purified by the ammonium sulfate fractionation, Sephacryl S-300 gel filtration chromatography and DEAE Sepharose Fast Flow anion exchange chromatography. The activity of the purified protein was determined by the pyrogallol autoxidation method and the physicochemical properties were studied by HPSEC and AAS. The results showed that the recombinant HPS SOD protein was a soluble protein with a size of 26 ku. The purity of the target protein was 95% after purification, and its activity was measured to be 215.9 U/mg by pyrogallol autoxidation assay. HPSEC analysis indicated that the recombinant HPS SOD was a multimer, and the manganese content in the purified HPS SOD was detected to be 0.71 mg/L by Flame Atomic Absorption Spectrophotometry.
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    Cognition and suggestion for high quality development of rapeseed industry in Xiangyang city
    FENG Peng, BAI Gui-ping, XIE Xiong-ze, CHU Qian-hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 148-150.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.030
    Abstract （586）      PDF （1489KB）（243）       Save
    As rapeseed was the largest oil crop in China, rapeseed industry and its development were very important to secure Chinese oil supply. The status of rapeseed industry in Xiangyang city was introduced and problems during the development of rapeseed industry were discussed. Cognition and suggestions were put forward to find out the development direction of rapeseed industry in Xiangyang city.
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    Heterogeneous development promoted the transformation, upgrading of Taobao villages：Taking Xiaying village in Hubei province as an example
    LIN Qian, YE Xiu-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 151-155.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.031
    Abstract （410）      PDF （1864KB）（210）       Save
    In recent years， the development of many Taobao villages had entered a bottleneck period. Taking Xiaying village in Hubei province as an example， it was facing the serious problems of declining flow welfare， low-end market and homogenization， so it was urgent to take the heterogeneous development route. From the perspective of demand， heterogeneity can stimulate new demand and tap niche market； from the perspective of supply， heterogeneity can improve added value and upgrade supply structure. In order to promote the heterogeneous development of Taobao village， relevant subjects can transform and upgrade by using new technology and big data navigation， promoting product diversification， promoting high-end products， integrating online and offline， and building a common Taobao village brand.
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    Quantitative evaluation of brand value of geographical indication agricultural products based on Interbrand：Taking Zhashui fungus as an example
    LI Na-na, ZHOU Xiao-ting, ZHANG Hong-xia, DENG Shu-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 156-161.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.032
    Abstract （396）      PDF （1608KB）（123）       Save
    The brand strategy of geographical indication agricultural products is related to the implementation of the targeted poverty alleviation and rural revitalization strategy. Based on the Interbrand brand evaluation method, combined with the brand characteristics of geographical indication agricultural products in China, taking Zhashui fungus as an example, this study made quantitative evaluation from the financial dimension, market dimension and brand dimension, comprehensively considered and calculated the brand value of Zhashui fungus, and put forward relevant countermeasures and suggestions for the implementation of the brand value strategy of geographical indication agricultural products of Zhashui fungus.
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    Analysis on influencing factors of purchase intention of agricultural machinery：Empirical analysis based on Tibet related areas of four provinces
    BAI Qing-yun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 162-165.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.033
    Abstract （496）      PDF （1530KB）（232）       Save
    The use of agricultural machinery is one of the important ways to promote agricultural modernization. Based on the survey data of 454 farmers and herdsmen families in Tibet related areas of four provinces, this research established a binary selection model to study the influence of personal characteristics factors, family characteristics factors and village characteristics factors on farmers and herdsmen's willingness to purchase agricultural machinery. The results showed that knowledge level, physical condition, the number of permanent residents in the village and the degree of local natural disasters had a significant role in promoting the purchase intention of agricultural machinery; the proportion of migrant workers in the village had a significant inhibitory effect on the purchase intention of agricultural machinery.
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    Inventory management of meat commodities with two-parameter Weibull distribution of deterioration rate：Considering the critical point of inventory level
    ZHANG Yuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 166-170.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.034
    Abstract （390）      PDF （1605KB）（174）       Save
    Based on the inventory management problems of physical deterioration rate obeying two-parameter Weibull distribution, considering the factor of critical point of inventory level, an inventory control model suitable for meat commodities management enterprises was constructed. The objective of inventory management was to minimize the average inventory cost per unit time. The
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    SWOT analysis of homestead reform：Taking Dali city as an example
    TIAN Hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 171-174.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.035
    Abstract （495）      PDF （1517KB）（276）       Save
    At present, the pilot homestead reform has entered the comprehensive deepening stage. Taking Dali city homestead reform as an example, this paper analyzed the advantages, disadvantages, opportunities and threats of the reform through constructing SWOT analysis matrix, in order to provide reference experience and perfect path for the nationwide promotion of homestead reform in the future.
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    Evaluation of the implementation effect of county industrial poverty alleviation based on analytic hierarchy process：Taking S county as an example
    LIU Yang, ZHANG Ye, LIU Jun-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 175-179.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.036
    Abstract （395）      PDF （1563KB）（182）       Save
    The development of industry is the fundamental policy to get rid of poverty. However, there were many common problems in the selection and layout, cultivation and support, operation and development of industrial poverty alleviation in some poverty-stricken areas, which affected the overall and long-term effect of industrial poverty alleviation, and were not conducive to the realization of sustainable poverty alleviation. Taking S county, a deep poverty-stricken county in Xinjiang as the research area, this study constructed the evaluation index system of the implementation effect of industrial poverty alleviation based on the analytic hierarchy process, and evaluated the implementation effect of industrial poverty alleviation in S county from the perspective of farmers. The results showed that in the process of industrial poverty alleviation in S county, the autonomy of farmers to participate in poverty alleviation projects was not high, the accuracy and effectiveness of skill training was not strong, and the benefit of new business entities was not high.
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    Discussion on the integration and optimization of natural reserves under the national park system：Take Sanmenxia city as an example
    SHI Yi-bo, GUO Yue, LIU Chang, LIU Yi-ping, KONG De-zheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 180-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.037
    Abstract （370）      PDF （1502KB）（206）       Save
    Based on the protection principles and policies of the integration and optimization of nature reserves, this study expounded the background of the national park system, summarized the current situation of nature reserves in Sanmenxia city of Henan province, and found that there were some problems, such as over lapping, multiple management, unclear boundary, incomplete information, fragmented and isolated nature reserves. According to the existing problems, this study put forward the corresponding integration and optimization measures, so that the ecological environment of local nature reserves can be more comprehensively protected and the ecological chain of reserves can be formed, which provided a scientific and effective basis for the delimitation of national parks in the future.
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    Research on the coupling, coordination development of industrial structure, poverty reduction effect in Shaanxi province
    ZHANG Ying, WU Bao-ling
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 184-188.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.038
    Abstract （324）      PDF （1952KB）（141）       Save
    Based on the data of industrial development and poverty alleviation in Shaanxi province from 2013 to 2018, this study constructed the evaluation index system and coupling and coordination model of industrial structure-poverty alleviation effect, determined the index weight by entropy method, and empirically studied the coupling and coordination relationship between industrial structure and poverty alleviation effect in Shaanxi province. The results showed that the poverty reduction effect system lag behind the industrial structure system, the two systems were still in the antagonistic stage, the coupling degree of the whole region was low, the matching degree between industrial structure adjustment and poverty governance was low, and the effect of industrial poverty alleviation was not obvious. The industrial structure and poverty reduction effect need to be further integrated and coordinated. Based on the current situation of the primary, secondary and tertiary industries, this study put forward scientific countermeasures and suggestions for the adjustment and development of local industrial structure, aiming at finding the path for the coordinated development of industrial structure adjustment and poverty governance, so as to provide reference for poverty alleviation and rural revitalization.
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    The enlightenment of Japanese, South Korean experience on the governance of rural hollowing in China
    YE Yu-han, GAO Qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 189-194.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.039
    Abstract （527）      PDF （1530KB）（322）       Save
    The lag and hollowing of rural development is a common phenomenon in the process of rapid urbanization and industrialization in the world. By combing the policies and measures of rural governance in Japan and the “New Village Movement” in South Korea， this study analyzed the prominent problems of rural hollowing in China. From the experience of rural governance in Japan and South Korea， it got the enlightenment that China should carry out rural hollowing governance from the following aspectsPartition and classification governance， development of rural industry， mobilization of farmers' participation， construction of legislative system and improvement of rural land management system.
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    Exploration of agricultural meteorology service network system construction：Taking the“New Farmer Meteorological Sentry” network in Shandong province as an example
    RONG Yun-peng, YANG Tao, LI Yu-hua, YU Jia-xin, HUAN Hai-jun, CHEN Zhi-liang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (10): 195-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.10.040
    Abstract （339）      PDF （2098KB）（187）       Save
    In order to improve the situation that meteorological specialized observation stations were sparse and the interaction of meteorological services for agriculture was relatively scarce, Shandong Meteorological Bureau had carried out the construction of the network system of meteorological services for agriculture with basic-level meteorological departments as the center and new farmers as the main body. The “New Farmers Meteorological Sentry” network had become the leg and eye of meteorological departments in the field, and together constituted a quick network of meteorological service information dissemination, collection and feedback, which provided an example for promoting the meteorological benefits and avoiding disasters, and meteorological guarantee for the comprehensive revitalization of rural areas.
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    Study progress of world heritage and tourism development based on the analysis of SSCI source literature
    HE Li-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 5-11.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.001
    Abstract （507）      PDF （4613KB）（343）       Save
    With CiteSpace and VOSviewer software, this paper selected SSCI source journals of Web of Science TM core collection sub database to analyze the research literature of world heritage and tourism development from 1994 to 2020. The results showed, ①Most of the authors come from Europe, America and East Asia, and there was less cooperation among them. ② From the perspective of research hotspots, sustainable development always runs through the main line of world heritage and tourism research. With the expansion of world heritage tourism research to the micro field, the perception, attitude and participation of heritage residents in tourism development, and the construction of a benign participation and management mechanism of community residents, tourists, government, enterprises and related organizations have become an important research hotspot. ③ From the research stage, the research of international world heritage and tourism development can be divided into four stages,such as germination, preliminary diversification, rapid diversification and deepening research. The research themes and research objects are increasingly diversified.
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    Research advances in resources utilization of sheep manure
    ZHU Yun-fen, LI Rong, XIANG Ji-qian, CHEN Xiao-fei, TAN De-jun, WANG Guo-gui, MA Jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 12-15.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.002
    Abstract （539）      PDF （1540KB）（507）       Save
    Sheep manure contains a lot of organic matter and elements such as N, P and K, which are not digested and absorbed by the body,it's a high quality raw material for making organic fertilizer. After being fermented by microorganisms, sheep manure can be transformed into organic fertilizer, feed, marsh gas and edible mushroom matrix,those are also effective ways of harmless and resource utilization of sheep manure, which have important development significance and application prospect in breeding and production.In this paper, the comprehensive utilization of sheepmanure and the latest research progress were reviewed, which provided new ideas for the utilization of sheepmanure.
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    Breeding and cultivation techniques of tropical new maize variety Guidan 669
    CHEN Hong-cao, TAN Hua, ZOU Cheng-lin, ZHENG De-bo, HUANG Kai-jian, HUANG Ai-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 16-18.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.003
    Abstract （761）      PDF （1493KB）（239）       Save
    Guidan 669, a new maize variety, was bred by Maize Research Institute, Guangxi Academy of Agricultural Sciences. Its parents were Q901as female parent and P508 as male parent. In 2018, the regional test of Guidan 669 was conducted in Guangxi, and the average yield in spring and autumn was 520.7 kg/667 m2, 6.0% higher than the control variety Guidan162. In 2019, the production test of Guidan 669 was conducted in Guangxi, and the average yield in spring and autumn was 478.7 kg/667 m2, 8.3% higher than the control variety. Guidan 669 was examined and approved by the Crop Seed Approval and Examination Committee of Guangxi in 2020. Guidan 669 has high and stable yield, good quality, lodging resistance and wide adaptability, which was suitable for planting in Guangxi.
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    Preliminary study on quality and taste of rice variety resources in Shandong province
    JIN Gui-xiu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 19-23.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.004
    Abstract （476）      PDF （1536KB）（591）       Save
    The edible quality of rice mainly includes processing quality, appearance quality, cooking quality, nutrition quality, storage quality, et al. This project mainly studies the quality and eating performance of rice（Oryza sativa L.） variety resources in Shandong province under specific producing areas, climate, cultivation and management, harvesting and storage, and provides references for the research of rice variety quality and eating quality, new variety breeding and resource creation.
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    Effect of soybean hybrid parents on grain protein and fat content of F2 population
    HU Tie-huan, SUN Yong-yuan, WU Feng-xun, GAO Guang-ju, CAO Jin-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 24-25.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.005
    Abstract （324）      PDF （1535KB）（208）       Save
    In order to study the inheritance of protein and fat in F2 generation of different soybean[Glycine max （Linn.） Merr.] parents, 13 crosses were made with high material Jidou 12 and high oil material Cangdou 6 as female parent, and the protein and fat contents of F2 generation population were determined. The results showed that the grain protein content of F2 population was highly correlated with that of the maternal parent, and the protein content of F2 population was higher than that of the maternal parent, and the protein content of F2 population was higher than that of the maternal parent. The protein content in the same population showed normal distribution. The fat content in F2 population was highly correlated with the parents. The protein and fat content in F2 population was negatively correlated（P<0.01）.
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    Effects of drip irrigation on dry matter accumulation,ear characteristics and yield of spring maize with high planting densities
    TANG Cheng, GAO Hui, CHU Gui-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 26-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.006
    Abstract （466）      PDF （1828KB）（204）       Save
    In order to determine the suitable drip irrigation quotas, the effects of different irrigation quantity on dry matter accumulation, ear characteristics, yield of spring maize （Zea mays L.） with high planting densities were studied, which will provide a scientific basis for reasonable water use for high density maize cultivation in the region. Three irrigation treatments were established, which were 2/3 of the local average irrigation quantity, the local average irrigation quantity and 4/3 of the local average irrigation quantity. The response of different irrigation quantity on corn dry matter accumulation, panicle traits, yield were studied using analysis of variance, correlation analysis, multiple regression analysis. The results showed that, compared to the average irrigation quantity, the dry matter accumulation of reproductive organs after seed formation period, post-flowering dry matter distribution ratio, grain numbers per ear, 1 000 grain weight, ear length, ear diameter, kernels per row, panicle weight, weight of grains per panicle, maize yield were significantly decreased with the decrease of irrigation water quantity, while irrigation water increase had no obvious effect on the indicators. The length of bald tip was negatively correlated with the irrigation amount, and other indicators were positively correlated with irrigation quantity. The yield of single ear of maize was mainly restricted by grain number and 1 000-grain weight per ear. The average irrigation amount of 6 750 m3/hm2 in this experimental area can ensure high yield of maize （yield ≥ 15 000 kg/hm2）, and the reduced 1/3 irrigation amount can significantly reduce maize yield, while the increased 1/3 irrigation amount has no obvious effect on yield, resulting in water resource waste.
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    Effects of different film mulching on agronomic traits and yield of edible sweetpotato
    ZHANG Lei, WANG Bo, SHANG Li-li, HAN Jun-jie, QIU Peng-fei, JIA Li-cong, WANG Chang-yun, HU Yao, XIN Guo-sheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 31-34.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.007
    Abstract （384）      PDF （1747KB）（166）       Save
    In order to explore the effects of different film mulching on agronomic traits and yield of edible sweetpotato [Ipomoea Batatas （L.） Lam], taking Yanshu No.25 as tested material, and the effects of different film mulching on survival rate, growth and yield of fresh sweetpotato seedlings were studied. The result showed that, compared with CK, the survival rate of transplanted sweetpotato seedlings treated with T1 and T3 increased by 10 percentage. Film mulching effectively reduced the main stem length, thickness and the number of base branch from transplanted to the 55th days after planting, and the most base branches of sweet potato at the 55th days of planting was T3.The largest number of middle-sized tubers was T3, followed by T2, which was 83.33% and 66.67% higher than CK respectively. Compared with CK, the yield of sweetpotato treat with T1, T2 and T3 was increased by 12.36%, 31.46% and 22.47% respectively. Compared with T2, T3 effectively reduced the number of small sweetpotato, the yield of big-sized tubers and small-sized tubers, meanwhile increased the number and yield of middle-sized tubers and the corresponding ratio.
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    Effects of returning methods of straw on soil physical property and spring maize yield
    YUE Yang, SUN Pan-pan, ZHANG Yan-hui, LI Yan, MENG Ling-bin, KANG Heng, DONG Ben-chun, ZHENG Yong-zhao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 35-38.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.008
    Abstract （369）      PDF （1574KB）（226）       Save
    The study aimed to find out the effects of different straw returning methods on soil physical properties and spring maize（Zea mays L.）yield.Four straw returning methods were set up： Without straw（S1, CK）, spinning straw into the soil（S2）, plowing straw deeply into the soil（S3） and covering the field with straw（S4）,to study its effects on soil bulk density, soil porosity, soil moisture, soil temperature and maize yield. The results showed that comparing with without straw（CK）, the soil bulk density of 0~40 cm layer decreased by 3.9%, the porosity increased by 2.0%, and the maize yield increased by 2.81% under spinning straw into the soil treatment; The covering field with straw treatment was conducive to improve soil moisture,decreased the soil temperature,maize ear number,grains per spike,100-seed weight,and the maize yield decreased by 3.87%. The plowing straw deeply into the soil treatment increased the soil porosity of 20~30 cm layer, decreased the soil bulk density, increased the field capacity and the soil moisture,increased the maizeear number, grains per spike, 100-seed weight, and the yield increased by 8.24%. Through preliminary study, we found that the plowing straw deeply into the soil can improve soil physical property, and increase maize yield.
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    Assessment of ecological vulnerability in the ecotone of the southeast margin of the Qinghai-Tibet plateau
    WANG Ying, XIE Zhong-yuan, LI Feng, SHAO Huai-yong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 39-44.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.009
    Abstract （415）      PDF （3513KB）（269）       Save
    To provide some basis for the ecological environment management and protection of the ecotone in the southeast margin of the Qinghai-Tibet plateau, this paper selected nine evaluation indexes and adopted the method of entropy and AHP to evaluate the ecological environment vulnerability of the southeast edge of the Qinghai-Tibet plateau in 2010, 2015 and 2018 based on the data of meteorology, topography and land resources. The results showed that the vulnerable areas of the study area were in the decreased order of mild vulnerability, micro vulnerability, moderate vulnerability, severe vulnerability, extreme vulnerability; The vulnerability degree of the ecological environment in the study area was mainly affected by soil erosion, vegetation coverage, slope, land use type and temperature; The vulnerability degree of the ecological environment in the study area was distributed as decreased order of glaciers, glaciers and woodlands belt, forest grass ecotone, cultivated land, grassland, and forest land; Compared with 2010, the ecological environment in 2018 showed a positive trend of change. The results indicate that the ecological projects such as the restoration of alpine grassland and the conversion of cropland to forest have been effective in recent years, but still need to continue to promote and improve the means of environmental governance.
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    Study on the reclamation experiment and ecological health risk of organic polluted soil after mechanochemical remediation
    ZENG Man, CHEN Dong, HU Min, MAO Lin-qiang, HU Lin-chao, ZHANG Wen-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 45-49.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.010
    Abstract （341）      PDF （6478KB）（212）       Save
    In order to evaluate the risk of crop growth and ecological health after the remediation of organic contaminated soil by ball milling mechanochemical method, the effects of remediated soil, polluted soil and pollution-free soil on the growth of crops were compared by planting rice, soybean. The results showed that the growth period of rice in polluted soil was longer than that of rice in remediated soil, and the growth period of rice in remediated soil was similar to that in non-polluted soil. Comparing the growth status of crop fruits, it was found that the growth status of fruit in non-polluted soil was better than remediated soil, both were better than polluted soil fruits; The size of soybean fruits in non-polluted soil was the same, and there were great difference among the polluted soil soybean fruits. The toxicity of rice fruits grown in non-polluted soil, remediated soil and polluted soil were non-toxic, toxic and high toxic respectively. 41 kinds of volatile and semi-volatile pollutants were detected in remediated soil, mainly 2,4-dichlorophenol and polycyclic aromatic hydrocarbons. The non-carcinogenic risk of 2,4-dichlorophenol and phenol in remediated soil was lower than acceptable. The carcinogenic risk of benzo （b） fluoranthene was also lower than the acceptable risk level. It can be seen from this, the toxicity of soil remediated by ball milling mechanochemical method is reduced, and the carcinogenic and non-carcinogenic risk is reduced.
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    Study on driving factors of carbon emission in the Yangtze river economic belt based on STIRPAT model
    ZHU Dong-yuan, JI Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 50-54.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.011
    Abstract （445）      PDF （3211KB）（303）       Save
    As an important manifestation of environmental pressure, carbon emission research on its internal driving factors is of great guiding significance to realize green development. Based on the panel data of provinces and cities of the Yangtze river economic belt from 2008 to 2016, carbon emissions were selected as the dependent variable, and the STIRPAT model was used to conduct an extended analysis to study the driving factors of carbon emissions in the Yangtze river economic belt. The results showed that the level of urbanization, population, energy intensity of the Yangtze river economic belt was significantly influenced carbon emissions, per capita GDP, investment of pollution control, the actual use of foreign capital also had a certain influence. Then the necessary measures of control and reduction the total CO2 of the Yangtze river economic belt were put forward to provide reference for the future development of high quality.
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    Influence of extreme temperatures change on phenophase in northwest Hunan province
    ZHOU Wei, CHEN Ke, HUANG Ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 55-61.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.012
    Abstract （388）      PDF （5801KB）（162）       Save
    In order to grasp the influence of extreme temperature on phenology and carry out fine meteorological services. Based on the climate data of northwest Hunan province from 2000 to 2018 and the phenological data of two kinds of animals （frog and barn swallow）and three kinds of plants （peach, catalpa and walnut tree） in the same period, the characteristics of temperature change and its influence on the phenology of animals and plants were studied by using the methods of linear tendency analysis, SPSS correlation coefficient and scatter diagram analysis. The results showed that the distribution of extreme maximum temperature was high in the middle and low in both sides, the regional difference of extreme minimum temperature was not obvious, and the trend of annual change of extreme maximum and minimum temperature was not obvious. The phenological periods of animals in northwest Hunan province were obviously affected by the lowest maximum temperature. The initial sound（see） stage and the final sound（see） stage both advanced and delayed, the initial sound（see） stage mainly showed an advanced trend, and the final sound（see） stage mainly showed a delayed trend. There was a significant correlation between the animal phenology and the extreme maximum temperature at the time of occurrence and 1~4 months before occurrence. The correlation between plant phenology and extreme maximum temperature was significant, but it was not obvious with extreme minimum temperature; The negative correlation between plant leaf bud opening, leaf spreading, flowering, defoliation and extreme maximum temperature was the main one. It can be seen that the extreme maximum temperature is the key meteorological factor affecting animals and plants in the northwest of Hunan province, and the period of animal activity and flowering of plants are more sensitive to the extreme maximum temperature.
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    Effects of chemical fertilizer reduction combined with commercial organic fertilizer on soil fertility and rice yield
    ZHANG Lin, LYU Yu-hu, GUO Xiao-yan, SHI Peng-fei, NIE Liang-peng, ZHANG Li-xia, DING Li, LING Jing-wei, PAN Zi-liang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 62-65.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.013
    Abstract （453）      PDF （1534KB）（200）       Save
    A field experiment was carried out to explore the effects of commercial organic fertilizer combined with reduced 10% and 20% chemical fertilizer on soil fertility and rice yield in south Henan province. The series of commercial organic fertilizer application was 750, 1 125, 1 500 kg/hm2, and 100% chemical fertilizer as the control. The results showed that treatment with 1 125 kg/hm2 of commercial organic fertilizer could reduce 10% chemical fertilizer and increase rice yield,treatment with 1 500 kg/hm2 of commercial organic fertilizer could reduce 20% chemical fertilizer and increase rice yield. Compared with the control,the rice soil available N was significantly increased with commercial organic fertilizer applied amount increased, available P and available K increased with commercial organic fertilizer applied amount increased; But only available N content was increased when applied chemical fertilizer, available P was significantly increased under 1 500 kg/hm2 of organic fertilize condition, available K was not significantly affected by chemical fertilizer applied amount. So, combined application of commercial organic fertilizer and chemical fertilizer could reduce the chemical fertilizer application amount, reduce the non-point source pollution load, and rationally use of commercial organic fertilizer．
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    Effect of milu deer activity on seed bank in the Swan island wetland in Shishou city
    YAN Li, CHENG Xu, YUAN Long-yi, XUE Xing-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 66-70.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.014
    Abstract （370）      PDF （1651KB）（188）       Save
    In order to study the effect of Milu deer （Elaphurus davidianus） activity on the seed bank in the Swan island wetland in Shishou county, seed bank germination experiment and vegetation investigation were carried out on the basis of the strong and weak selection of three sites （A site, B site and C site） by the intensity of interference. The results showed that there were 41 species, 18 families, 39 genera, and mainly annual plants （53.7%）. The interference intensity of Milu deer had a significant effect on seed bank in the Swan island wetland in Shishou county （P<0.05）, and the order of the interference in the seed bank species was B>C>A. The variation characteristics of Shannon-Wiener diversity index and Margarlef richness index of above ground vegetation were the same, and both showed an extremely significant downward trend with the decrease of disturbance intensity, indicating that disturbance increased the species and quantity of above ground vegetation. The similarity level between seed bank and above ground vegetation was low, the number of Milu eaters in above ground vegetation decreased, and a large number of Milu anorexia species increased.
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    The application of various model data in a hail prevention operation in Hunan province
    DING Li, DING Yuan-wu, LI Wei, TANG Lin, LI Qiong, WANG Ling
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 71-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.015
    Abstract （521）      PDF （11058KB）（29）       Save
    The purpose of this study was to improve the timeliness and accuracy of hail prediction and to develop a scientific and reasonable hail prevention plan. On May 3—4, 2017, a severe convective weather process occurred in south Hunan province. The time and region of this severe convective weather process were predicted by using the European central fine grid model 24 hours before the process. By using GRAPES_CAMS model data, the evolution trend of cloud system was knew and the precipitation mechanism was judged, then the temperature and height range of cloud seeding was determined, finally the operation plan was made. The radar fact sheet was used to adjust the operation plan. The results showed that, based on the traditional hail prediction method, the cloud model was introduced to accurately determine the appropriate operation height, operation location, operation time, made the operation more scientific, more targeted. After the operation, the radar echo was weakened, no data of hail disaster was collected in the operation area, and the operation effect was good.
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    Comprehensive evaluation of superior individuals of dwarf crape myrtle using hierarchy-gray correlation method
    YANG Yan-ling, LI Zhen-fang, MA Lin-jiang, WANG Rui-wen, ZHANG Xin-ye, PENG Chan, HUANG Guo-wei, CHEN Hui-ling
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 76-80.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.016
    Abstract （439）      PDF （1550KB）（183）       Save
    For cultivating dwarf shrubby Lagerstroemia indica, selecting flower density, inflorescence length, inflorescence width, flower diameter, flower color, flowering period, plant type, plant height, crown width, growth vigor, disease resistance and other 11 indicators, the evaluation system of dwarf shrubby L. indica's ornamental character was established by combining the grey correlation analysis method with the AHP method using 110 individual plants of hybrid offspring from the intraspecific hybridization of L. indica as materials. Based on the weight value of each evaluation index determined by Analytic hierarchy process and according to the grey correlation degree value, all the materials were divided into 4 grades and 6 plants with the good comprehensive characters including dense flowers, good shape, bright and pure color were picked out. The evaluation system can be used to evaluate the dwarf shrubby L.indica's ornamental characters effectively, and this provided a scientific method for selection breeding.
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    Effects of different anti-cracking agents on fruit cracking and contents of middle and trace elements in Junzao
    LI Jiang-bin, ZHAO Wei-liang, YANG Xin-fang, WANG Zhen-lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 81-85.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.017
    Abstract （519）      PDF （1557KB）（115）       Save
    Taking Junzao jujube（Ziziphus jujuba Mill.） as material, the effects of different concentrations of CaCl2 and GA3 on fruit cracking, medium and trace elements of Junzao jujube were studied by spraying different concentrations of CaCl2 and GA3 on the leaves of Junzao jujube at different stages. The results showed that during the growth period of jujube fruit, the weight of single fruit and the vertical and horizontal diameter of fruit were significantly increased by applying 15 g/L CaCl2 and 20 mg/L GA3. Spraying 10 g/L CaCl2 and 20 mg/L GA3 in the white ripening stage of jujube fruit could significantly reduce fruit cracking, reduce water absorption, and maintain the hardness and brittleness of fruit. The contents of P, K, Ca and Mg in jujube fruits increased significantly after long-term application of CaCl2, which was higher than that in medium and post-treatment stage. The contents of P, K and Na in jujube fruits were significantly higher than those in the pre-treatment period when gibberellin was sprayed at white ripening stage, and the content of Ca was slowly accumulated. Long-term application of calcium from young fruit stage to white ripening stage and spraying of GA3 during white ripening stage are important measures to reduce fruit cracking of Junzao.
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    Definition and measurement of particle clouds in cultural landscape
    ZHAO Zhong-jian, LIANG Jun-lan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 86-92.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.018
    Abstract （343）      PDF （6904KB）（109）       Save
    The complex concept of culture and civilization causes people's different tendency to understand cultural landscape and influence the specific method and direction of cultural landscape construction. Cultural meaning and connotation ultimately need to be transformed into physical landscape space with the help of “symbol” language and media. Physical landscape space elements always carry specific cultural significance. The elements of cultural landscape space will form a set unit — cultural landscape particles according to their own specific cultural significance and specific logic or structure. In the same geographic space, different types of cultural landscape particles interact to form a “cloud-like” aggregation form. It includes the temporal cultural landscape particle cloud based on the time axis and the spatial cultural landscape particle cloud based on the horizontal space. Based on this point of view, the morphological indexes of particle clouds in cultural landscape include density, orientation and development speed. Based on the spatial distribution degree of particles in cultural landscape, the computing model of particle cloud density in cultural landscape, the estimation model of particle cloud orientation in cultural landscape and the estimation model of the development speed of cultural landscape are proposed and analyzed, which provides a new way of thinking for the quantitative analysis of cultural landscape.
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    Analysis and map construction of traditional villages from the perspective of landscape gene： Taking Qianxiewan village in Pingdingshan city as an example
    ZHANG Wan-yu, LIU Bao-guo, WEI Hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 93-98.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.019
    Abstract （487）      PDF （5347KB）（755）       Save
    Qianxiewan village is one of the representative traditional villages in the shallow mountainous area of central Henan and the carrier of the traditional culture of the Central Plains. The overall texture pattern elements are relatively intact, which is of great significance to the protection and development of the traditional villages in the Central Plains. Based on the theory of landscape genes, this article analyzes the site environment, layout, main building, and cultural background of Qianxiewan village, and builds a landscape gene identification system for Qianxiewan village, and on this basis, identifies and extracts the impact The four main genes and three attachment genes of the overall style of the village are graphically expressed, four main genes and three attached genes that affect the overall appearance of the village were identified and expressed graphically,and strive to provide solid theoretical support and practical guidance for the subsequent sustainable development of traditional villages in central Henan.
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    Effects of light intensity on tadpole behavior of Quasipaa boulengeri
    ZHANG Xiao-qin, DING Hong-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 99-101.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.020
    Abstract （414）      PDF （1552KB）（432）       Save
    The effects of different light conditions on the tadpole behavior of Quasipaa boulengeri was studied. The results showed that the number of tadpoles increased with the increase of light intensity, the stress response of tadpoles was very strong at the early stage of culture, and the intensity of the stress response decreased with the increase of culture time. The stress response of the group with high light intensity was stronger than that of the group with low light intensity, and the color of tadpoles in the group with high light intensity was lighter than that of the group with low light intensity.
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    Optimization of extractions of Yigen Tiaoli paste by orthogonal design based on entropy weight method
    JIANG Lin, GUO Yong-xiu, LI Fang-chan, PANG Xiao-yun, WEI Bo-wei, SUI Jia-ning
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 102-106.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.021
    Abstract （404）      PDF （1563KB）（282）       Save
    The contents of total flavonoids, psoralen and nootkatone were used as the indicators, the alcohol concentration and volune, extraction time, number of repeated extractions were used as the influencing factors. orthogonal design was used to optimize the alcohol extraction process of Yigen Tiaoli paste based on entropy weight method weighted evaluation. Determination of psoralen and nootkatone by high performance liquid chromatography and determination of total flavonoids by UV spectrophotometry. The results showed that the weight coefficients of total flavonoids, psoralen and nootkatone were 0.336 9, 0.335 1 and 0.328 0, respectively. Optimization of extraction was as follows： extractions 2 times with 70% ethanol, and each time with 12-fold ethanol volume and 1h extraction. The extraction process is stable, and can be used as the alcohol extraction.
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    The antibacterial mechanism and cosmetic efficacy test of the ethanol extract of Nostoc commune Vauch
    SUN Qian, ZHANG Yun, TANG Yun-feng, LIU Kang-xin, CHEN Xue-ru, JIN Wei-hua, TANG Hong-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 107-111.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.022
    Abstract （433）      PDF （1668KB）（226）       Save
    Alcohol extraction was used to extract the active ingredients of agaric agaric. The changes of electric conductivity, total soluble sugar and total protein concentration of the bacterial culture liquid before and after the action of agaric agaric ethanol extract and escherichia coli were measured. Stability, safety, moisturizing, whitening and other tests were carried out for the cosmetics. The results showed that the conductivity, total soluble sugar and total protein concentration of escherichia coli culture solution were increased in different degrees after treatment with ethanol extract of agaric. The made cosmetics have good security, stability and whitening and moisturizing properties. The ethanol extract of agaric can destroy the escherichia coli cell membrane. The developed cosmetics are delicate and gentle, stable and uniform in texture, safe and non-toxic side effects, as well as whitening and moisturizing effects.
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    Content determination of nutrients components in cultivated Cardamine circaeoides from wild type and quality evaluation
    LONG Lan, YIN Hong-qing, XUE Hua, YANG Yong-kang, CONG Xing, XIANG Ji-qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 112-114.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.023
    Abstract （469）      PDF （1533KB）（300）       Save
    The contents and quality characteristics of various nutrients in cultivated Cardamine circaeoides from wild were analyzed to provide reference for better utilization of the plant. The result showed the contents of protein, crude polysaccharide and crude fat in cultivated Cardamine circaeoides from wild were 29.27%, 2.41% and 2.62%; It contains 17 amino acids, and Human Essential amino acid was 40.04%; A total of 11 fatty acids were detected in cultivated Cardamine circaeoides from wild, and the content of unsaturated fat was 66.34%;Rich in vitamins and minerals, VE 45.20 mg/kg,VB2 17.08 mg/kg,VB3 4.24 mg/kg,VA 10.10 mg/kg,Zn 306.0 mg/kg,K 78.6 mg/kg,Mn 114.0 mg/kg、B 15.5 mg/kg. Cultivated Cardamine circaeoides from wild is a kind of vegetable with rich nutrition.
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    Volatile constituents in the flowers of Inula cappa based on HS-SPME-GC-MS
    XU Pei-zeng, LIU Ming-juan, LUO Zhen-gui, ZENG Ya-jing, CAI Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 115-117.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.024
    Abstract （392）      PDF （1610KB）（240）       Save
    The volatile components in the flowers of Inula cappa were analyzed by headspace solid phase micro-extration （HS-SPME） combined with gas chromatography-mass spectrometry （GC-MS）. The results showed that 50 compounds were identified, accounting for 86.74% of the total volatile components.Its main components include thymol （19.70%）, （-）-β-caryophyllene （12.19%）, carvacrol （8.13%） and thymyl isobutyrate （8.13%）. This method can quickly obtain its components, is advantageous to volatile compounds, can be used for the control of Inula cappa. The method has the advantages of simple operation,low dosage,high sensitivity and high speed.The results of this study lay a foundation for the study of pharmacodynamics and quality control.
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    Determination of organochlorine pesticides in Tripterygium wilfordii from planting base of Hubei
    XIAO An-ju, GONG Da-lin, LIU San-bo, YU Xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 118-120.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.025
    Abstract （385）      PDF （1871KB）（145）       Save
    Organochlorine pesticides in the roots of Tripterygium wilfordii were extracted by ultrasonic-reflux method,purified by sulfonation-silica gel column, and determined by gas chromatography. The results showed that this batch comes from six new species of Tripterygium wilfordii （TJ,TG,TZ,YJ,YG,YZ） planted in Yangxin, Hubei province. The pesticide DDT residues in their roots are 0.004 5,0.001 4,0.000 8,0.001 2,0.003 6,0.003 3 μg/g respectively; the pesticide BHC residues in their roots are 0.027 6,0.061 4,0.056 3,0.043 2,0.048 7,0.032 7 μg/g respectively; the pesticide PCNB residues in their roots are 0.001 9,0.001 8,0.001 5,0.001 6,0.001 6,0.001 9 μg/g respectively. All of which are less than the organochlorine residue standard for Chinese herbal medicine stipulated in the first part of Chinese pharmacopoeia 2015 edition. In this study, the pesticide content of Tripterygium wilfordii was determined by gas chromatography, and the results provides a scientific basis for the quality assurance of Tripterygium wilfordii. In terms of pesticide residue, the new planting base in Yangxin, Hubei province was suitable for planting of Tripterygium wilfordii.
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    Optimal design of back roof structure and performance of solar greenhouse in Yantai city
    YUAN Xing-jian, WU Xing-guo, XU Hao, CHEN Xiao-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 121-124.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.026
    Abstract （404）      PDF （1898KB）（401）       Save
    The structure and performance of the rear roof have a great influence on the performance of the solar greenhouse. To design the most suitable rear roof of greenhouse in Yantai city, by investigating the solar greenhouses and its rear roof structure used in conventional production and with the help of the solar greenhouse light environment simulation software developed by China Agricultural University, taking back roof inclination, horizontal projection width and the structure of back roof as the independent variable, simulate and study different roof after the influence of parameters on the temperature inside the greenhouse. According to the simulation calculation, in the case of 9 m span of solar greenhouse, the optimized parameters of the back roof were inclination angle of 38°, horizontal projection width of 1.3 m, and the composite structure material should use extruded board instrad of polystyrene board.
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    Construction and analysis of stochastic time Petri net model of fresh agricultural products aviation cold chain logistics
    LI Jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 125-128.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.027
    Abstract （372）      PDF （1555KB）（217）       Save
    Aviation cold chain logistics is the future of fresh agricultural products logistics field key development direction. To solve the general aviation fresh agricultural products logistics system in time and efficiency, based on stochastic time Petri nets to our country some air fresh agricultural products cold chain logistics process to carry on the comprehensive evaluation, through the quantitative conclusion for the optimization measures of the air fresh agricultural products cold chain logistics process provides the feasible suggestions, think that can change some business process in the logistics system to improve the operational efficiency of air fresh agricultural products cold chain logistics.
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    Design and implementation of physical parameters monitoring system for ewes based on WSN
    YING Ye-wei, ZENG Song-wei, ZHAO A-yong, YAN Fei-fei, YANG Jian-lyu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 129-133.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.028
    Abstract （406）      PDF （3159KB）（250）       Save
    Aiming at the problems of time-consuming, manpower-spending, imperfect collection schemes and limited transmission distance of physical parameters monitoring for ewes, a set of physical parameters monitoring system for ewes based on WSN was designed. Firstly, the system collected body temperature information of ewes through the acquisition node of the collar. Then, wireless sensor network formed by ZigBee and GPRS technology transmitted the data to the cloud server. The server stored the data in the database and displayed it on the web platform simultaneously. Besides, in order to verified the accuracy and effectiveness of the system, the real-time average algorithm was used to calculate the relative error of body temperature data and the network packet loss rate of the communication scheme was tested. The experimental results showed that physical parameters monitoring system for ewes based on WSN was able to collect, transmit and display physical parameters for ewes in real time. The relative error of temperature measurement was less than 1%, and the network packet loss rate was less than 4%, which met the actual demand of the sheep farm. The monitoring system designed in the research ran stably and broke through the limitation of communication distance. It greatly improved the work efficiency of managers. The collected physical data was very important for establishing the amount of exercise and the health assessment model of ewes.
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    Bioinformatics analysis of BnFAD2 gene in Brassica napus L.
    CHEN Zhen, HE Xiao-ying, WANG Jing-qiao, LI Gen-ze, SHU Zheng-qi, ZHAO Kai-qin, CHENG Xiao-mao, ZU Feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 134-140.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.029
    Abstract （380）      PDF （3574KB）（306）       Save
    The gene AtFAD2 was taken as reference sequence, homologous sequence comparison was conducted by BLAST to obtain the homologous copies of FAD2 gene in the genomes of Brassica oleracea, Brassica rapa and Brassica napus. Bioinformatics methods were used to analyze the components of the amino acid sequence, the basic physical and chemical properties of the protein, subcellular localization, hydrophilicity and hydrophobicity, the secondary and tertiary structure of the protein, and the conserved domain of the FAD2 gene editing targets and sgRNA design. Two FAD2 homologus protein sequence were obtained from B. rapa, B. deracea, B.napus. Both subcells were localized in the endoplasmic reticulum, and the peptide chain showed hydrophobness and stability. The predicted secondary and tertiary structure of the protein showed that it was mainly composed of -helix and irregular curl. The conserved structural domain of the protein showed that FAD2 gene was highly sequence conserved, belonging to the Membrane-FADs-like superfamily, and contained PLN02505 conserved structural domain. Phylogenetic tree analysis showed that Brassica napus L was closely related to B. oleracea, B. rapa and B. juncea. The CRISPR-Cas9 gene-editing target analysis revealed that there were 10 highly conserved target sites in the FAD2 gene of Brassica napus L., and the corresponding sgRNA was designed.
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    Evaluation and screening of internal reference genes of Tetranychus cinnabarinus at different developmental stages
    NI Jing, XIE Dao-yan, JIANG Xiu-jun, YANG Zhen-guo, CHAI Jian-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 141-145.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.030
    Abstract （409）      PDF （5396KB）（204）       Save
    In the real-time fluorescent quantitative PCR experiments need to introduce one or a few stable reference genes as a reference for expression result correction and standardization, but not all reference genes are perfect for any specific biological samples under special experiment conditions, in order to get accurate results, We need to screen the best reference genes match with the experiment. In this study, real-time fluorescence quantitative PCR and geNorm software were used to analysis and evaluate the stability of six commonly used reference genes in the propargite resistance and sensitive Tetranychus cinnabarinus. The result showed that RPS18 and α-TUB reference genes showed high expression stability in this two strains,and α-TUB and GAPDH reference genes showed high expression stability in different developmental stages.
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    Classification evaluation and spatial-temporal pattern analysis of the “production-living-ecological spaces” in Sichuan province
    XIAO Rui, SHAO Huai-yong, LI Feng, XIE Hong-bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 146-152.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.031
    Abstract （619）      PDF （10710KB）（96）       Save
    The 18th National Congress of the Communist Party of China put forward the new concept of “production-living-ecological spaces”, which was used as a theoretical basis to analyze and study the spatial pattern and change characteristics of Sichuan province from 2000 to 2018. The results show that the production space is mainly distributed in the eastern part of Sichuan, while the southern part is less distributed. The expanded areas are mainly distributed in the central Ganzi Tibetan autonomous prefecture, northwestern Aba Tibetan and Qiang autonomous prefecture, and central Zigong, while the reduced areas are mainly distributed in northern Aba Tibetan and Qiang autonomous prefecture, central Chengdu, and southwestern Ya'an; Living spaces are mainly distributed in urban areas of each city, especially in Chengdu. The expansion area is mainly in the central and eastern part of Sichuan province, and the expansion is obvious in Chengdu, Deyang and other places. The reduction area is scattered and the reduction is not obvious; The ecological space is mainly distributed in the northwest and south regions of Sichuan, showing a distribution pattern of “high in the west and low in the east, high in the north and low in the south”. The expanded area is mainly scattered in dots in urban areas of each city, and the reduced area is concentrated in the city center, especially in the middle east of Chengdu, the middle of Zigong and other places.
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    Analysis of public-private partnership model in agricultural field under rural revitalization strategy
    WEN Wen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 153-156.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.032
    Abstract （472）      PDF （1496KB）（185）       Save
    The proposal of rural revitalization strategy points out the direction for solving the problem of backward development of agriculture and rural areas, but it has great limitations to solve the problems only by relying on the power of the government. Therefore, further attention and improvement of the public-private partnership model in the agricultural field is an inevitable requirement to adapt to the development status of the agricultural, and it is also an effective way to implement the rural revitalization strategy. Through the analysis of the development and protection status of public-private partnership model in agricultural field in China, it is found that there are some problems, such as the lack of perfect legal system, the unclear role of government, the shortage of fund supply and the plight of project land. It is suggested to further improve the legislation level, clarify the boundary of government power, guarantee the supply of funds, deepen the land system and so on, so as to provide a more powerful guarantee for the smooth operation of the public-private partnership model in the agricultural field.
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    Study on coupling and coordination evolution of tourism industry and human settlement： A case study of 31 provinces（cities,autonomous regions） in China
    YAN Zhi-wu, ZHENG Han-ni, LIANG Xiao-han, WANG Yi-zhuo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 157-163.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.033
    Abstract （333）      PDF （1600KB）（294）       Save
    The comprehensive development index of tourism industry system and human settlements system in 31 provinces（cities,autonomous regions）（except Hongkong,Macao and Taiwan） of China from 2011 to 2017 was calculated by using entropy method and coupling coordination model, and the coupling coordination degree between them was obtained, and their evolution law was explored. The empirical study shows that the spatial differentiation of the coupling coordination degree between China's tourism industry and human settlements is obvious, showing a spatial pattern of “high in the east and low in the west”. During the study period, most provinces' coupling coordination level remained unchanged, some provinces improved, and a few provinces have decreased. Finally, according to the comprehensive development index ranking of tourism industry and human settlements system, 31 provinces （cities,autonomous regions） are divided into four types：High coordination, more tourism, low coordination and more human settlement, and relevant development suggestions are put forward.
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    Research on the measurement of high quality development level in Inner Mongolia autonomous region
    CHEN Shu-yu, XU Bu-chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 164-167.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.034
    Abstract （470）      PDF （1926KB）（190）       Save
    From the five aspects of ecological protection, environmental governance, innovation driven, economic development and people's livelihood improvement, the paper constructed a high quality development index system of Inner Mongolia autonomous region, and used entropy weight method to measure and analyze the high quality development of Inner Mongolia autonomous region from 2009 to 2018. The results show that, in terms of ecological environment, although there is fluctuation in Inner Mongolia, the overall trend is good. In terms of innovation driven, although Inner Mongolia has been fluctuating, its innovation ability is still insufficient.In terms of economic and people's livelihood, Inner Mongolia shows a trend of fluctuating growth, and its development trend continues to be good. In general, the high quality development level of Inner Mongolia autonomous region is fluctuating upward. Inner Mongolia autonomous region should fully grasp its own advantages, strengthen regional innovation and development, and fully exploit regional development potential.
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    Optimization of spatial interaction in community home aged-care services research： Take two communities of H Street,Nanjing as examples
    HAN Zhen-yan, ZHUANG Dan-dan, LIU Ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 168-172.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.035
    Abstract （390）      PDF （2471KB）（224）       Save
    The phenomenon of aging in China is becoming more and more serious. In order to promote the equalization of community home aged-care services, this research constructed a spatial radiation model of elderly care services from the perspective of central place theory, and it was embedded in the interaction of the elderly care service space in the two communities of H Street in Nanjing city for verification. The results show that the reasonable spatial distribution and complementary interaction of community home aged-care services can effectively realize service equalization, promote the full utilization of community home aged-care service resources, the matching of supply and demand and the improvement of service quality, so as to actively respond to the aging population.
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    Order in motion：Acquaintance society in demolition and resettlement： Take XT demolition and resettlement community in Nanjing city as an example
    QIN Xiang-rui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 173-177.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.036
    Abstract （490）      PDF （1515KB）（294）       Save
    Based on the basic standpoint of acquaintance society, this research taked the villagers in XT resettlement community in Nanjing as an example by using qualitative research method, and focused on the changes of the daily interaction and social communication of the villagers after the centralized resettlement. The research shows that after the original village community is broken, the villagers daily life has changed significantly in the way of treating strangers, the purchase of funerals, the distribution of property, and the practice of general kinship, but its characteristics of defence, cooperation, competition and social interaction have not fundamentally changed, and the series of mechanisms that promote the smooth operation of acquaintances' social order still play an important role. The multiple contradictions presented in the process of local social transformation reflect the individual and group's pursuit of high quality social order in the new era.
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    Managerial overconfidence and technological innovation performance： Based on the double moderating effect of government subsidy and knowledge base
    WEI Chang-sheng, SHI Huan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 178-185.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.037
    Abstract （390）      PDF （1602KB）（312）       Save
    Based on resource based theory and knowledge based theory, taking high-tech enterprises as research samples from 2013 to 2018, this article studied the relationship between managerial overconfidence and the technological innovation performance of enterprises, and discussed the moderating effect of government subsidies and knowledge base. The results show that managerial overconfidence will significantly improve the technological innovation performance of enterprises, government subsidies and knowledge breadth will positively regulate the relationship of managerial overconfidence and technological innovation performance, and the depth of knowledge plays a negative regulating role in this relationship.
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    An empirical study on the contribution of buddhist tourism resources to local economic growth： A case study of Shaanxi Famen Temple scenic spot
    YANG Liu, SHI Wen-jie, WAN Hong-lian, HE Ruo-nan, WANG Zi-meng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 186-190.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.038
    Abstract （393）      PDF （1575KB）（196）       Save
    Based on the analysis of the current tourism development situation of Famen Temple scenic spot,through questionnaire survey and field interview, and with the help of SPSS 22.0 and Excel 2010, this paper maked a correlation analysis, and explored the contribution of Famen Temple's buddhist tourism resources to local tourism economic growth from the three aspects of tourism contribution rate, tourism pulling rate as well as tourism dependence. The results show that the rate of Famen Temple scenic spot's tourism economic growth and its regional economic contribution is low, and the following suggestions are accordingly put forward, such as developing a new type of tourism additional product,taking advantages of the internet to strengthen the propaganda, creating high-quality tourism routes, cultivating the high-quality tour guides, improving the service elements.
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    Research on tourists' perception of scenic avenue based on web text analysis： Taking National First Scenic Boulevard as an example
    YAN Meng-fan, LIANG Yue-lin, LIU Xiao-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 191-195.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.039
    Abstract （399）      PDF （2484KB）（341）       Save
    Based on the travel notes of famous tourism websites as sample data, this paper analyzed the high-frequency words, social semantic network and emotion of tourists with the ROST CM6, and studied the perception characteristics of tourists from the perspective of cognition and emotion. It is found that tourists' overall perception of National First scenic Boulevard is better. Tourists' cognitive evaluation can be divided into three dimensions, including tourist attraction, tourist facilities, public environment and service; Tourists' emotional orientation is mainly positive and neutral. The purpose of this research is to provide reference ideas for the planning and design of scenic byways in China.
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    On the legal guarantee of rural financial poverty alleviation
    SHAN Lin-bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (11): 196-201.   DOI: 10.14088/j.cnki.issn0439-8114.2021.11.040
    Abstract （398）      PDF （1520KB）（130）       Save
    Rural financial poverty alleviation plays an important role in poverty alleviation and rural revitalization. However, the legislation in the field of rural financial poverty alleviation is relatively lagging behind, and the lack of legal protection seriously affects the role of rural financial poverty alleviation. We should formulate the basic law of rural financial poverty alleviation, improve the special legislation and related systems of rural financial poverty alleviation, and build a legal guarantee system for rural financial poverty alleviation, so as to boost poverty alleviation and rural revitalization strategy.
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    Mechanism of Bacillus amyloliquefaciens on plant soil-borne disease
    LU Jing-qian, LANG Jian-feng, YANG Qiu-xia, SHI Ming-wang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 5-9.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.001
    Abstract （576）      PDF （1561KB）（1325）       Save
    Plant soil-borne disease has become the main reason to limit the sustainable development of agriculture in China. With people's attention to food safety and environmental protection, biological control has become a research hotspot in the prevention and treatment of soil-borne diseases at home and abroad. Bacillus amyloliquefaciens is a kind of biocontrol bacteria with broad spectrum of antifungal and bacterial activities, which can inhibit soil-borne plant diseases. In this paper, the biological control mechanism of Bacillus amyloliquefaciens was reviewed from the aspects of antagonism, growth promotion, competition and resistance induction, and the existing problems and the development direction in the future were expounded.
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    Effects of planting density on the agronomic traits and yield of potato varieties under the bean-potato-wheat three cropping model
    DENG Jun-bo, LIU Xin, CHEN Yan, YANG Fang, WANG Ai-ai, HE Nian, WU Ji-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 10-13.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.002
    Abstract （389）      PDF （1528KB）（184）       Save
    In order to explore the effects of planting density on agronomic traits and yield of different sweet potato varieties, the field experiment was conducted using sweet potato varieties of Longshu No.9, Xinxiang, Pushu No.32. Results showed that the variety characteristics were the key factors that determine the agronomic traits and yield of sweet potato varieties. Planting density had no significant impact on the above-ground agronomic traits of sweet potato varieties, but had a significant impact on sweet potato yield. Among them, Xinxiang had the highest yield and economic benefits at a planting density of 60 000 plants/hm2, which were 18 706.44 kg/hm2 and 16 901 yuan/hm2, respectively; Longshu No.9 had the highest yield and economic benefits at a planting density of 67 500 plants/hm2, which were 29 939.88 kg/hm2 and 9 568 yuan/hm2 respectively; Pushu No.32 has the highest yield at a planting density of 60 000 plants/hm2 which was 18 706.44 kg/hm2, but the economic benefits was negative. Therefore, the sweet potato variety Xinxiang under the bean-potato-wheat three-cropping system could have the highest yield and economic benefits at a planting density of 60 000 plants/hm2 in Jianghan plain.
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    Study on photosynthesis,quality and yield of peanut under different times of irrigation
    MA Qing-rong, LIU Rong-hua, QIN Fu-sheng, CHENG Lin, LI Tong-xiao, HU Cheng-da
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 14-19.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.003
    Abstract （372）      PDF （1631KB）（213）       Save
    Under natural conditions, the effects of different irrigation times on photosynthesis, yield and quality of peanut were studied. The results are as follows, compared with CK which is natural condition with two times irrigation, the net photosynthetic rate of T1 treatment which is light drought with one time of irrigation increase at first and then decrease, which is mainly caused by stomatal factors in the early stage, and stomatal factors and non stomatal factors work together in the late stage. The net photosynthetic rate of T2 treatment which is severe drought with no irrigation shows a fluctuation change of decline rise decline. The former decline is caused by stomatal factors, and the latter decline is caused by non-stomatal factors. The yield and its components of peanut except for the full fruit weight decrease with the increase of drought degree. For the T1 treatment, the 100-satiety seed weight increases by 5.43%, and the other yield components decrease in varying degrees. The yield and its components of T2 treatment decrease significantly, except the 100-satiety seed weight has no significant difference. With the increase of drought degree, the content of protein and amino acid increase significantly, while the content of oil and water decrease.
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    Analysis on the influence of monsoon climate on crop yield per unit area：A case study of Zhenning autonomous county
    WEI Qi, WANG Hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 20-24.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.004
    Abstract （450）      PDF （1588KB）（212）       Save
    Based on the meteorological observations of annual mean temperature, annual rainfall, annual mean relative humidity, annual total sunshine hours, frost-free period and accumulated temperature and the statistical data of rice, wheat and maize yields from 1990 to 2012 in Zhenning autonomous county, the relationship between the yields of these three crops and these climatic factors was analyzed by using multiple linear regression model. The results showed that with the increase of rainfall, the yield of wheat decreased gradually, whereas the yield of rice and maize increased; The yield of the three crops was greatly affected by natural disasters; In the event of extreme weather, the planting structure of crops would appear relatively single situation.
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    Study on the improvement effect on acid soil and on the suitable dosage of Yishizhuang commercial organic fertilizer on potato
    LUO Ke-wan, ZOU Ai-qing, ZHOU Fu-zhong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 25-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.005
    Abstract （405）      PDF （1564KB）（191）       Save
    A field plot experiment was set to study the improvement effect of Yishizhuang commercial organic fertilizer on acid soil and the appropriate amount of it on potato. The results showed that the soil fertility was high, and the contribution rate ranged from 62.98% to 89.57%. It was completely feasible to replace part or even all chemical fertilizers with Yishizhuang commercial organic fertilizers.The combined application of the organic fertilizer and the formula fertilizer was better than the simple application of the organic fertilizer. The main performance was that the potato big potato rate was higher and the potato commodity quality and commodity rate were improved correspondingly. The quadratic and cubic regression equations of the amount of organic fertilizer and potato yields fitted by Excel reached extremely significant level. The maximum and optimal usage of the organic fertilizer on potatoes calculated by quadratic regression equation were 9 660 kg/hm2 and 7 993 kg/hm2, respectively. The highest and the most economic yield of potato were 33 314 kg/hm2 and 32 897 kg/hm2, respectively. The organic fertilizer had better effect on improving acidified soil. With the increase of the dosage, the soil pH and base saturation increased continuously. Exchangeable basic ions such as potassium, calcium and magnesium increased.However, the contents of exchangeable aluminum and available manganese in soil gradually decreased. It had certain effect on inhibiting the toxicity of aluminum and manganese in soil.
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    Study on the effect of intensive fertilizer production of three single types of greening wastes
    SONG Liang-hong, WANG Ke, LI Xiao-kang, YANG Zhi-heng, WANG Zhi-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 31-34.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.006
    Abstract （436）      PDF （1618KB）（228）       Save
    Three kinds of single types of garden wastes （litters, deciduous and grass debris） were selected as experimental materials, and different proportions of soybean residue and sheep manure were added. Fertilization was carried out by highly intensive fermentation equipment. Samples were taken at the early stage （ initial mixing stage）, middle stage （after equipment fermentation）, and late stage （after complete maturity） of the fertilization process. Organic matter, pH, nutrient content and germination index were detected. The results showed that the treatment of soybean dregs∶sheep manure∶green waste 1∶1∶8 and 1∶2∶7 had the best performance. Because of the shortest composting time, high total nutrient content, moderate pH and high germination index, they were conducive to plant growth and good composting effect. Among them, the treatment of soybean dregs∶sheep manure∶green waste 1∶1∶8 had more economic advantages.
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    Study on risk assessment of water environment safety in the Yellow river basin of Shanxi province
    ZHOU Xuan, HOU Xiang-ying, GUO Pi-bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 35-40.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.007
    Abstract （417）      PDF （1575KB）（252）       Save
    Based on the disaster risk theory and the concept of water environment security, the risk situation of water environment security in the Yellow river basin of Shanxi province was evaluated by AHP. The results showed that the water environment safety risk levels of the nine prefectural-level cities along the Yellow river were divided into five levels：Extremely high, high, medium, low and extremely low, Jincheng city and Changzhi city were classified as very high and high risk, while Shuozhou city was classified as medium risk, mainly due to deterioration of water quality. Xinzhou city and Shuozhou city were classified as very high and high risk, respectively, in the exposure attribute of hazard-bearing factors, Jinzhong city and Linfen city were in the middle, mainly due to reduced water supply and increased population density; Yuncheng city was at the very high level of vulnerability, while Jincheng city and Linfen city were at the high level of vulnerability, among the medium vulnerable were the cities of Lyuliang city and Shuozhou city, mainly due to reduced precipitation and insufficient water resources per capita. Finally, through the comprehensive analysis, it was found that the Jincheng's overall risk was the highest, and the relevant departments needed to focus on.
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    Optimization of three-dimensional electrochemical oxidation system for printing and dyeing wastewater treatment by response surface method
    CUI Meng, WANG Yong, ZHANG Ya-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 41-44.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.008
    Abstract （381）      PDF （5647KB）（246）       Save
    An ammonium persulfate modified graphite felt electrode was used as the cathode, a titanium plate was used as the anode, and activated carbon was used as the particle electrode to construct a three-dimensional electrochemical system. The response surface method （RSM） was used to investigate the COD and ammonia nitrogen capacity of the actual printing and dyeing wastewater. The results showed that the significant of influencing factors of COD removal rate of printing and dyeing wastewater was electrode voltage>reaction time>aeration amount, and the significant of influencing factors of ammonia nitrogen removal rate was electrode voltage>aeration amount>reaction time, and the mathematical model had good regression; Under the conditions of electrode voltage of 7.03 V, aeration amount of 6.78 L/min, and reaction time of 86.77 min, the maximum COD removal rate predicted by the model was 73.37%, and the maximum removal rate of ammonia nitrogen was 88.32%. The removal rates of COD and ammonia nitrogen were 71.24% and 86.19%, respectively, and the relative deviations of the actual results and the predicted values were less than 3%.
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    Analysis of ecological status in Yonghe river basin based on ecological footprint model
    WANG Guo-zhong, LI Zhong-yuan, CHENG Huan-ling, ZHANG Ji-yu, YANG Liu, LIU Zhan-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 45-48.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.009
    Abstract （380）      PDF （1540KB）（171）       Save
    To evaluate the ecological status in Yonghe river basin, ecological footprint model was used to calculate its ecological demand and supply in 2016. The results showed that its per capita ecological footprint was 0.499 12 hm2, the ecological carrying capacity was only 0.265 96 hm2 and the per capita ecological surplus was -0.233 16 hm2 with -0.467 14 of safety index. The ecology of the basin was in unsafe state, to ensure the high quality of development in future, it was important that current extensive way of consumption be changed to save and protect local resources; New and high technologies should be developed to increase the production of natural resources; It should be paid more attention to the quality rather than the quantity of the population; Existing resources should be used efficiently and rationally.
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    GIS-based study on geochemical characteristics and influencing factors of soil nutrient elements in the Three Gorges Reservoir area
    DENG Hai, WANG Rui, NING Mo-huan, LUO Yu-jie, DONG Jin-xiu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 49-54.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.010
    Abstract （385）      PDF （5901KB）（144）       Save
    In order to find out the spatial distribution characteristics of soil nutrient elements and provide suggestions for agricultural planting and fertilization methods, Yuexi town in the Three Gorges Reservoir area was selected as the research object, 639 surface soil samples were collected and analyzed in the soil. The content of nutrient elements （N, P, K） and soil pH were divided into geochemical grades. Based on geostatistical methods, the spatial distribution characteristics and influencing factors of soil nutrient element content and pH were analyzed. The soil K content in the study area was relatively rich, while the N and P content was relatively low, the soil was mainly acidic, and the proportions of acidic and strongly acidic soils were 25.2% and 46.3%, respectively. Soil N content was related to altitude, and denitrification at low altitudes would cause soil N loss. Salt-based ions would migrate from high-altitude areas to low-altitude areas, resulting in high-altitude soils with mainly acidity and low K2O content. In addition, the nitrification of N in high-altitude areas would also cause soil acidification. Soil P was obviously affected by human factors, and the content of P in cultivated land was significantly higher than other land types. It was recommended to increase the amount of organic fertilizer and potassium fertilizer in the distribution area of acidic and strongly acidic soil, reduce the application of nitrogen fertilizer, use artificial means to adjust the pH of the soil, reduce the cultivation of tea trees and legumes, improve soil acidification, and neutral and alkaline. The soil distribution area could increase the application amount of organic fertilizer in an appropriate amount and improve the soil fertility.
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    Temporal and spatial dynamics of ecological land and its connectivity based on morphological spatial pattern analysis （MSPA） in Inner Mongolia Autonomous region
    LIN Fei-fei, XIE Miao-miao, ZHANG Hao, HAI Feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 55-62.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.011
    Abstract （447）      PDF （4140KB）（442）       Save
    Based on the land use data of 8 periods from 1980 to 2018, the ecological land was defined and extracted in combination with the actual situation and relevant literature in Inner Mongolia Autonomous region. The types of ecological land connectivity were classified by morphological spatial pattern analysis （MSPA）, and the spatial and temporal dynamic characteristics of ecological land and its connectivity were obtained by using transfer matrix. The results showed that, the proportion of ecological land in Inner Mongolia Autonomous region decreased by 3.459 percentage points from 1980 to 2018, mainly because of the great reduction of grassland. The proportion of non-ecological land increased, but it was still lower than that of ecological land. Many MSPA types transferred to non-ecological land, at the same time, the connectivity of the retained ecological land decreased, the degree of aggregation of the core area decreased, and the perforation appeared. The spatial connectivity of the northern region was better than that of the southern region, and the main ecological land components were different from east to west. In terms of structure, low-cover grassland was of great significance to improve the connectivity of regional ecological land. The acceleration of urbanization, extensive development and management of resources and special natural conditions were the main reasons for the reduction of ecological land area and the decline of connectivity. Inner Mongolia Autonomous region still needed to strengthen ecological protection according to local conditions. MSPA method can effectively identify the overall level and spatial distribution characteristics of ecological land connectivity.
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    Impact mechanism of climate change risk perception in southern Shaanxi based on geographical detectors
    XUE Si-wen, ZHOU Qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 63-66.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.012
    Abstract （331）      PDF （2437KB）（124）       Save
    Taking southern Shaanxi as a case study, based on the data from a large-scale questionnaire survey on the public perception of climate change risk response from 2015 to 2019, the characteristics and impact mechanism of climate change risk perception were revealed from four aspects, namely basic situation, human-earth view and risk view, environmental perception and response behavior, with the help of geographical detector. The results showed that the factor explanatory power of perceived coping effect was the highest （0.979）. The interaction between perception of climate change risk response effect and risk perception had the strongest factor influence, reaching 1.000. The perception of climate change causes, the concern of climate change, the perception of response effect, the perception of industrial structure adjustment, the perception of energy conservation and emission reduction effect, and the residential environment had obvious control effects on the perception of climate change risk response.
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    Investigation on the main diseases of Malania oleifera in Guangnan county of Yunnan province and evaluation on the control effect of several fungicides
    PAN Yue, LEI Xiao-ling, WANG Ming, ZHANG Li-li, MAO Ping, LU Cheng-jun, LI Jin-bao, WANG Juan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 67-72.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.013
    Abstract （493）      PDF （3324KB）（320）       Save
    The disease investigation was carried out in six artificial planting areas and two wild distribution areas of Malania oleifera in Guangnan county, Wenshan county, Yunnan province, which was the origin and distribution center of Malania oleifera in China, and three planting areas and one wild distribution area with serious disease were selected for the study of the control effect. The results showed that leaf spot, root rot and stem rot were the main diseases in the artificial planting area of Malania oleifera in Guangnan county, while plaster disease was the primary disease in the wild distribution area. Additionally, 50% carbendazim had ideal control effect on leaf spot, and 47% kasugamycin·copper oxychloride was better than 80% bordeaux mixture for the control of plaster disease.
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    Labaratory toxicity and field control efficiency of 7 fungicides to wheat scab in Jingzhou city
    CHANG Yue, ZHU Xiang, MENG Zhen-guo, DONG Qian, WANG Jin-peng, LI Jun-kai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 73-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.014
    Abstract （461）      PDF （1523KB）（181）       Save
    In order to screen out the fungicide with better control effect on wheat scab in Jingzhou city, the field control and indoor antibacterial activities of 7 pesticides against wheat scab were determined with the field spray method and the mycelial growth rate method. The results showed that the four original drugs of prochloraz, tebuconazole, phenamacril and pyraclostrobin in the laboratory toxicity test have good antibacterial effects for the wheat scab, and the inhibitory concentrations （EC50） were 0.028, 0.114, 0.427, 1.554 mg/L, respectively. And the field results showed that the seven pesticides had good control effects against wheat scab. Prochloraz EW had the highest control effect of 88.60%, followed by prochloraz EC 83.53% and pyraclostrobin SC 82.13%, respectively. The control effects of the 25% prochloraz EW in the test agent was significantly higher than other pesticides, and it can be preferably used in the field.
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    Identification and screening of the drought-tolerant characteristics in the main oil sunflower variety resources in Hebei plain
    LI He-ping, LI Ji-ming, LI Ai-guo, SHEN Yan-ping, SONG Cong-min, JIA Ying-quan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 76-80.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.015
    Abstract （444）      PDF （1587KB）（211）       Save
    Facing the rainless and drought climate in Hebei plain,in order to screen the ideal drought-tolerant and water-saving oil sunflower varieties,16 oil sunflower cultivars which were comparatively widely grown in production in the plain were studied. The biological traits, economic traits, the relative eclectric conductivity（REC） and relative water content （RWC） of leaf were ananyzed under droutht stress condition and their drought resistant indices were also calculated for drought-tolerance identification. The result indicated that different oil sunflower varieties presented great variation in biological traits, economic traits and physiologic indices under droutht stress condition. By a general way of identificatioon, the screened highly drough-tolerant variety resources were Qingfeng No.1, Zaoyou 66 and Ai 58 with DRI （drought resistant index） 1.16, 1.14 and 1.04, respectively, and they were suit for growing in the area.
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    Effects of PEG-simulated drought stress on physiological and biochemical characteristics of different mulberry rootstocks
    ZHANG Chao-hua, ZHANG Na, ZHU Lin-lin, MO Rong-li, YU Cui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 81-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.016
    Abstract （354）      PDF （2586KB）（185）       Save
    In this study, 5% PEG was used to simulate severe drought stress to explore the physiological and biochemical characteristics of different mulberry rootstocks. Under severe drought stress, the leaves of mulberry rootstocks quickly lose water, and the wilting time and wilting ratio of different rootstocks are significantly different. Physiological and biochemical indicators related to water stress, such as malondialdehyde （MDA）, proline （Pro）, hydrogen peroxide （H2O2） content, and the activities of superoxide dismutase （SOD） activity, peroxidase （POD） activity, catalase （CAT） activity were measured. The results of the study showed that the MDA content, SOD activity, CAT activity, and POD activity of the six mulberry rootstocks showed an overall downward trend, but the magnitude of the change was slight. However, the Pro content showed an increasing trend, especially in the later period, the Pro content increased rapidly, and the content of H2O2 showed the characteristic of first increasing and then decreasing, but the trend of change between different mulberry rootstocks were different.
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    Effects of low temperature and light involved in change of anthocyanin in leaves of color-leaved poplar
    ZHU Xiu-hong, CAI Yao-qi, YANG Jin-ju, CHENG Hong-mei, RU Guang-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 85-89.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.017
    Abstract （461）      PDF （1688KB）（309）       Save
    Using five color-leaved poplar varieties as experimental material, anthocyanin, chlorophyll, carotenoid content, soluble sugar content, sucrose content and anthocyanin related enzyme activity were determined to investigate whether low temperature and light were involved in change of anthocyanins in the leaves of color-leaved poplar. The results showed that the contents of chlorophyll and carotenoids in the leaves of color-leaved poplar showed a decreasing trend due to relatively low temperature, while the contents of anthocyanin and sugar content increased. With the increase of anthocyanin content, the antioxidant capacity of leaves increased. The activity of enzymes related to anthocyanin （PAL, CHI, DFR, UFGT） also increased to different degrees, causing further accumulation of anthocyanin. At the same time, the feedback mechanism of relative low temperature promoting anthocyanin accumulation in color-leaved poplars must involve light,the content of anthocyanin, sucrose and soluble sugar decreased greatly, and the activity of related enzymes also decreased to a lower level when completely shading was applied at low temperature. After re-feeding the light source, these indicators re-rose to a higher level.
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    Study on the comprehensive evaluation of urban park landscape interest
    DING Qin-qin, WANG Meng-yao, YANG Fang-rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 90-94.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.018
    Abstract （444）      PDF （2426KB）（365）       Save
    Based on the investigation of the current urban parks, this paper constructs an evaluation model of urban park landscape interest, which includes 16 index factors, and calculates the index weight with analytic hierarchy process. Firstly, through the analysis of the weight results, it is concluded that park landscape culture, activity space and supporting facilities are the main factors affecting the interest of urban park landscape. Secondly, we use the questionnaire to make a comprehensive evaluation and analysis of people's park landscape interest needs. Finally, based on the premise of ecological sustainability of urban park landscape, on the basis of suitable taste, combined with people's behavioral needs, innovative technology and culture are integrated to form participatory urban park landscape interest promotion countermeasures.
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    Quantification and influencing factors of public park commodity value：Taking Nanhu park in Nanning city as example
    DU Yan-pei, LI Zai-liu, GUO Song
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 95-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.019
    Abstract （357）      PDF （2009KB）（246）       Save
    The evaluation of park's commodity value provides an important decision basis for urban land use development and construction management. This article uses the hedonic price method to investigate the prices of second-hand houses around Nanhu park in Nanning city and quantify the commodity value of the park. The results are showed following,the optimal model for HPM at Nanhu park is semi-logarithmic model; there are 9 variables that significantly affect the unit price of houses （Pr） around the park, namely building age （S7）, total floor number （S8）, distance from Nanning railway station （L2）, distance from the nearest subway station （L4）, distance from Yongjiang river （L6）, distance from the nearest general hospital （N1）, distance from the nearest key primary school （N2）, distance from the nearest higher education institution （N4）, and whether Nanhu lake can be seen（N7）. The distance from Nanhu park （N5） has no significant effect on the housing unit price, while whether Nanhu lake can be seen （N7） has a value-added rate of 16.314% to the unit price of houses （Pr） around the park. The commodity value produced by Nanhu park is about 1.1810 billion yuan, which indicates that the park has a huge spillover effect on the value-added of surrounding real estate.
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    Survey report of cigarettes in Dushan county of Guizhou province
    YANG Chun-yuan, LU Xin-li, WANG Zhu-jiu, QIN Jia-fu, LEI Ting, BAI Hai, YANG Xiu-fei, LI Yu-xiang, YE Ding-yong, LUO Zheng-you, LIN Ying-chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 101-106.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.020
    Abstract （522）      PDF （10408KB）（89）       Save
    In order to collect cigar variety resources extensively, the cigar tobacco in Dushan county, Guizhou province was investigated. The results showed that Dushan cigar was mainly distributed in Yaodong group of Xindong village, Mawei town, Dushan county, with a continuous planting area of 9.33 hm2. The main cultivated varieties were GX-1 and GX 2 et al, and GX-1 had the largest planting area of 6.67 hm2. Dushan cigar was prepared by air curing technology, which had mature fermentation technology and aging preservation technology. The prepared Dushan cigar leaves have thick identity, good toughness, sufficient oil content and cigar aroma characteristics. The main flavor is honey sweet and roasted, with positive sweetness and coffee aroma while the concentration is medium to low. It is suitable for making cigar clothing, cigar cover or entry-level cigar core. In addition, the suggestions on strengthening breeding research and construction of scientific research base for Dushan cigar were put forward.
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    Effects of dietary copper on survival,growth and body composition of juvenile Squaliobarbus curriculus
    YANG Kai, WANG Yue-song, GAO Yin-ai, YANG Hui-jun, YUAN Yong-chao, CHENG Wei-wei, WEI Hui-jie, WANG Qing-yun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 107-112.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.021
    Abstract （413）      PDF （1602KB）（191）       Save
    Treatments consisted of nine semi-purified diets containing graded levels of dietary copper （CuSO4·5H2O was added to a basal diet at 0, 1, 2, 3, 4, 6, 8, 10 and 12.0 mg/kg）, providing actual dietary values of 0.29, 1.31, 2.28, 3.43, 4.57, 6.61, 8.77, 10.73 and 12.89 mg/kg diet, respectively. Each diet was fed to triplicate groups of juvenile Squaliobarbus curriculus with initial body weight of 6.22 g in 300 L cylindrical fiberglass tank. The results showed that the typical dietary Cu deficient signs such as poor growth and malformation of skeleton were observed in fish fed the diets with 0.29 mg/kg diet. Fish fed the diet containing 4.57 mg/kg had the highest specific growth rate （SGR）. The lowest hepatosomatic index （HSI） and viscerosomatic index （VSI） were observed in fish fed the diet containing the highest Cu content diet （P<0.05）. Condition factor showed no significant differences among the treatments （P>0.05）. Proximate composition of fish body was significantly affected by dietary copper level （P<0.05）. Cu contents of whole body and hepatic increased with dietary Cu levels （P<0.05）. Hepatic thiobarbituric acid reactive substances （TBARS） was found to decrease with increasing dietary concentrations of copper up to 3.43 mg/kg beyond which a reverse trend in this parameter was noted. （Conclusion） Analysis by the linear regression of weight gain （WG） and feed conversion ratio （FCR） and second-order regression of whole-body Cu retention of the fish indicated that dietary Cu requirement of juvenile Squaliobarbus curriculus was 3.94~4.92 mg/kg diet.
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    Study on the countermeasures of controlling nitrogen and phosphorus pollution in the aquaculture water of Procambarus clarkii
    ZHANG Xia, WANG Ting, WEI Hong-bo, ZHOU Cun-yu, YANG Dai-qin, LI Jun-kai, YANG Chao-dong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 113-118.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.022
    Abstract （380）      PDF （1589KB）（361）       Save
    Procambarus clarkii-rice model has good economic benefits. Aquaculture water of Procambarus clarkii must use wetland plants to effectively purify nitrogen and phosphorus. In this paper, referenced the phenotypic characteristics of the crops root system for the efficient absorption and utilization of nitrogen and phosphorus, and summarized the phenotypic plasticity, root structure and physiological function of wetland plants, as well as the research progress of removed nitrogen and phosphorus in water. It is suggested that adjusted the phenology of wetland plants, induced the roots phenotypic plasticity with efficiently absorption and utilization of nitrogen and phosphorus under the different concentrations, to suite the critical treatment period of Procambarus clarkii aquaculture water. and construct the artificial floating island by reasonable combination of species.
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    Optimization of fixation methods by fuzzy mathematics and its quality analysis
    ZHU Xin-peng, LI Dong-hua, WU Chong, AN Jiang-shan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 119-123.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.023
    Abstract （368）      PDF （1541KB）（176）       Save
    In order to optimize fixation technique, effects of leaf weight, microwave power and treatment time on the sensory qualities of green tea were studied by means of fuzzy mathematics comprehensive evaluation and orthogonal test with Camellia sinensis cv. Ziyangquntizhong as experimental material, which were picked one bud and two leaves processed through fixation technique assisted by microwave. The results indicated that the optimum process was leaf weight 120 g, microwave power 560 W and treatment time 90 s. In compared with the control, there were no significant differences in contents of caffeine, polyphenols and water extract of green tea, while the free amino acids contents of green tea treated by microwave were significantly higher than that of pan-fixed green tea. Under the optimum condition, the free amino acids content of which was increased by 34.57% with the best quality of sensory evaluation.
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    Optimization of extraction process of maca polysaccharide by Box-Behnken response surface methodology
    HUANG Yi-jie, ZHANG Hai-zhu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 124-127.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.024
    Abstract （351）      PDF （5959KB）（197）       Save
    To optimize the extraction process of Maca polysaccharide and improve the yield of maca polysaccharide. The response surface methodology was used to investigate the effects of ultrasonic temperature （A）, extraction time （B） and solid-liquid ratio （C） on the extraction rate of maca polysaccharide, and the interaction among them （A×B, A×C, and B×C） was investigated, and the optimal extraction conditions were obtained. Results showed that the optimum conditions were as follows： Ultrasonic temperature 60 ℃, extraction time 40 min, liquid-solid ratio 40∶1. Under the optimum conditions, the extraction rate was 51.21%.
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    Nondestructive testing model for main components of potato from different places by near infrared spectroscopy
    WU Yan-yong, SHI Yan-cai, LYU Xue-juan, QIU Li-hang, LUO Han-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 128-130.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.025
    Abstract （430）      PDF （1856KB）（168）       Save
    36 potato（Solanum tuberosum L.） samples involved in different species and grades were collected from 6 provinces in China. Based on the values determined by chemical methods, near infrared spectroscopy （NIRS） nondestructive testing model for the water, reducing sugar and starch content were constructed by partial least squares regression method, respectively. The results showed that the determination coefficients （R2） of constructed NIR model were 0.88 for water, 0.84 for reducing sugar, and 0.92 for starch. The root mean square error of cross validation （RMSECV） was less than 1, and the ratio of the standard deviation of the verification set to the predicted standard deviation （RPD） was all more than 2.5 in each NIR model. In addition, the results of external validation further showed that the R2 for three components which was predicted by each constructed NIR model was more than 0.9, and the relative deviation between the predicted value and the measured value in every component was also very small.
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    Determination of four components in semi-finished products and preparations of Triperygium wilfordii by SPE-HPLC
    XIAO An-ju, GONG Da-lin, LIU San-bo, YU Hao, YU Xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 131-134.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.026
    Abstract （355）      PDF （2098KB）（227）       Save
    To establish a method for the simultaneous determination of triptolide,tripterine, demethylzeylasteral and wilforlide A in semi-finished products and preparations of Triperygium wilfordii by SPE-HPLC. The contents of four components in Triperygium wilfordii extractum, Triperygium wilfordii tablets and Triperygium glycosides tablets were determined by HPLC, The separation was achieveds uning Kromasil C18（250 mm×4.6 mm, 5 μm）with an acetonitrile, methanol, 0.5% phosphoric acid and water gradient elution system. Results showed that the linear relationship of triptolide,tripterine, demethylzeylasteral and wilforlide A were good（r≥0.996）. The average recoveries of the samples were 92.50%, 94.93%, 99.36%, 92.29%,RSD were 4.70%, 6.41%, 5.90%, 4.36%.
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    Contact analysis for gears of transplanting mechanism based on ABAQUS finite element method
    YUAN Yong-chao, HU Zong-mei, SONG Lu-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 135-139.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.027
    Abstract （431）      PDF （4309KB）（395）       Save
    Aiming at the hybrid gear planetary system transplanting mechanism of rice transplanter which applies the eccentric gear non-circular gear planetary system, the finite element method was used to apply the corresponding non-circular gear angular velocity and eccentric gear torque to the meshing state simulation model of non-circular gear and eccentric gear. The results showed that when the transplanting mechanism moved under the limit torque state, the maximum contact stress of non-circular gear was between 180~200 MPa, and that of eccentric gear was between 320~420 MPa. The meshing of non-circular gear and eccentric gear was normal, which meets the design requirements.
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    Analysis on the influencing factors of livelihood of settled herdsmen in Urumqi county
    Kulimanran·WUREAZIBAI, Hailiqiemu·SIYITI, Ayituerxun·SHAMUXI
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 140-147.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.028
    Abstract （316）      PDF （1567KB）（88）       Save
    Selected Urumqi county as the research area, field survey was used to collect data, and binary logistic regression model was used to study the factors influencing the livelihood of settled herdsmen. The results showed that, on the one hand, the scores of economic factors, social factors and cultural factors were higher than other factors, which were 1.981 97, 1.433 53 and 1.115 75, while the scores of production factors and ecological factors were 0.616 87 and 0.390 16. On the other hand, herdsmen did not fully adapt to the life after settlement, and there were some problems in the implementation of the policy. Based on the quantitative analysis of the problems existing in the livelihood of settled herdsmen, this research put forward the corresponding countermeasures and suggestions.
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    Analysis of influencing factors of fruit sales under farmer direct selling e-commerce mode：Based on the theory of customer delivered value
    ZHANG Xiao-lu, LIU Yu-hao, CUI Mao-sen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 148-152.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.029
    Abstract （468）      PDF （1592KB）（522）       Save
    It is of great significance to study the factors that influencing the fruit sales under the mode of farmers direct selling e-commerce to solve the problem of unsalable fruit and improve farmers' income. Aiming at 144 Yantai apple stores, this study selected the data that influencing apple sales according to customer delivered value theory, and used OLS regression model to analyze the influence of seven factors on fruit sales, including product description consistency, seller's service attitude, logistics service quality, seller's reputation level, commodity praise rate, seller's opening time and commodity price. The results showed that, ① commodity price had a negative impact on fruit sales, while the other six factors had a positive impact; ② the order of influence on fruit sales was seller's service attitude, commodity description consistency, seller's reputation level, seller's opening time, commodity price, commodity praise rate, logistics service quality. Finally, according to the research results, the study put forward countermeasures and suggestions to improve the fruit sales.
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    Research on the development strategy of e-commerce logistics of agricultural products in Yichang city under the rural revitalization
    DA Jing, PEI Yuan-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 153-158.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.030
    Abstract （472）      PDF （1524KB）（369）       Save
    In recent years, e-commerce logistics of agricultural products began to rise and develop, which promoted the development of e-commerce of agricultural products and became an important means to promote rural revitalization. Taking Yichang city in Hubei province as an example, which had many characteristic agricultural products, this research expounded the development status of e-commerce of agricultural products in China, analyzed the current development status of the development of e-commerce logistics of agricultural products in Yichang city, emphatically analyzed the problems faced by the development of e-commerce logistics of agricultural products in Yichang city under the background of rural revitalization, and put forward some suggestions, so as to promote the development of e-commerce logistics of agricultural products in Yichang city under the background of national vigorously supporting rural revitalization strategy, e-commerce logistics of agricultural products can get a healthy development.
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    The influence of the price and publicity methods of nutrition-enhanced agricultural products on consumers' purchase intention
    WANG Xi-lin, LI Ting-ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 159-164.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.031
    Abstract （397）      PDF （1786KB）（227）       Save
    As an innovative agricultural product, nutrition-enhanced agricultural products had improved the micronutrients in agricultural products, and can effectively solve the problem of hidden hunger in China. In this study, the dual processing cognitive mode was used as an intermediary variable, and a scenario simulation experiment method of 2 （publicity methods：picture publicity, text publicity）×2 （price increase range：low range, high range） was used to analyze the influence of the interaction of price and publicity methods on consumers' purchase of nutrition-enhanced agricultural products. The results showed that, text publicity can make consumers willing to purchase nutrition-enhanced agricultural products with low price growth than picture publicity. Picture publicity can make consumers willing to purchase nutrition-enhanced agricultural products with high price growth than text publicity. When using text to promote nutrition-enhanced agricultural products with low price growth, consumers often use analytical information processing systems.
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    Research on Wuhan's tourism flow network structure based on digital footprint interaction
    ZHOU Ting, XIANG Jing-wei, LI Jiang-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 165-171.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.032
    Abstract （368）      PDF （2660KB）（214）       Save
    By means of the digital footprint analysis method and the research idea of point-plane interaction, the structure of Wuhan's tourism flow network was studied. The results showed that the regularity of Wuhan's tourism digital footprint was relatively conspicuous. Spring and summer were the peak tourist seasons, with the most concentrated period from March to May, and the average stay of 2.8 days. The geographical spatial distribution of nodes in Wuhan's tourism flow network was unbalanced, the driving effect of some nodes was not enough to realize comprehensive and coordinated development of nodes. The spatial structure of Wuhan's tourism flow network was stratified obviously. The connection between the core area and the edge area was low. The overall density of Wuhan's tourism flow network was low, and the development in the region was unbalanced. It was necessary to further play the role of important nodes and core regions to realize the coordinated development of point-plane interaction of Wuhan's tourism flow network.
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    The influence of rural population aging on grain green production：Base on the perspective of negative growth of chemical fertilizer and pesticide
    LI Mei-ting, HE Pu-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 172-176.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.033
    Abstract （319）      PDF （1587KB）（131）       Save
    Through comparative analysis, this study found that the overall effect of chemical fertilizer and pesticide reduction was obvious, and the effect of chemical fertilizer and pesticide reduction of crops was also obvious, but the effect of chemical fertilizer and pesticide reduction of food crops was not ideal. Based on the perspective of rural population aging, this study analyzed the dilemma of grain green production, and analyzed the reasons why the input of chemical fertilizer and pesticide increased instead of decreasing in grain production, and finally put forward some suggestions to promote the reduction of chemical fertilizer and pesticide and help the grain green production.
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    Problems and countermeasures of Yan'an red tourism enterprises from the perspective of experience economy
    ZHANG Jian-jie, YANG Xing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 177-180.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.034
    Abstract （461）      PDF （1496KB）（295）       Save
    Red tourism is a new form of theme tourism which combines patriotic education with tourism. The development time of red tourism is not very long. Red tourism enterprises need to pay more attention to tourists' travel experience in order to gain competitive advantages. Therefore, based on the perspective of experience economy and the analysis of the development background of red tourism in Yan'an, this study pointed out the problems existing in the development of red tourism enterprises in Yan'an at present, and put forward some countermeasures for the development of red tourism enterprises in Yan'an, in order to further promote the high-quality development of red tourism in Yan'an.
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    Global tourism：Breakthrough of green economy development strategy in Inner Mongolia
    MIAO Li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 181-185.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.035
    Abstract （329）      PDF （2378KB）（213）       Save
    Tourism industry was the breakthrough of developing green economy in Inner Mongolia, and global tourism was a new development mode of tourism industry,which emphasized the high integration of multi industries and whole resources, and promoted the coordinated development of economy and society in many aspects by tourism industry. Agglomeration development was an important way to improve the efficiency and competitiveness of tourism elements. This study analyzed the agglomeration degree of tourism industry in Inner Mongolia from 2012 to 2018 by using the location entropy theory and the competitive model of industrial agglomeration, pointed out the existing problems of tourism industry in Inner Mongolia, and put forward the corresponding countermeasures.
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    Welfare economic analysis on the supply-side subsidy of farmland centralized and continuous transfer：Taking three counties in Jiangsu province as an example
    WANG Ya-jing, CHEN Xin-yuan, BAI Lu-xin, JI Yue-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 186-191.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.036
    Abstract （425）      PDF （1737KB）（245）       Save
    In recent years, some of the economically developed areas in Jiangsu province had implemented the centralized and contiguous transfer of village collective organizations, which had effectively solved the problems of farmland fragmentation and market failure, while the underdeveloped areas also had the conditions for centralized and contiguous transfer. However, in the process of coordinated transfer, it was difficult to achieve a unified transfer because of the great differences in the willingness of compensation among the scattered transferors, the self tillers and the land transferors. The land transfer subsidy policy of centralized and continuous transfer can achieve the potential welfare on the basis of achieving the minimum participation rate. Based on the perspective of stakeholders, this study calculated the welfare changes of villages in underdeveloped areas of Jiangsu province when simulating the implementation of different subsidies, and drew the conclusion that the farmland centralized and contiguous transfer subsidies can help to achieve the overall welfare growth of most villages in three counties of Jiangsu province, but it need larger financial expenditure, and the efficiency of policy implementation will be reduced when the amount of subsidies increases.
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    Research on the driving factors of rural industry revitalization——Taking pomegranate industry in Huili county,Liangshan prefecture as an example
    NIU Jiang-rong, SHANG Yan-guang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 192-196.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.037
    Abstract （385）      PDF （1514KB）（322）       Save
    Industrial prosperity is the focus and foundation of rural revitalization. Based on the research of the view of Liangshan prefecture pomegranate industry, this paper sumed up the main driving factor for the development of the industry, and put forward the local government should promoted the integration of various driving factors, actively carry out brand construction, cultural construction, market development, such as work, make up the lack of market and social main body, force, to promoted the development of forming industry to promote rapid development of pomegranate industry.
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    Analysis on the path of red culture boosting rural revitalization in the old revolutionary base areas of southern Shaanxi
    JI An-ling, WANG Xiao-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 197-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.038
    Abstract （1685）      PDF （1503KB）（288）       Save
    Red culture has a unique value in the rural revitalization of the old revolutionary base areas. Giving full play to the advantages of red culture is an important part of the implementation of the rural revitalization strategy and a powerful driving force to promote the rural revitalization of the old revolutionary base areas. Southern Shaanxi is an old revolutionary base area, which not only has rich material form of red culture, but also has spiritual form of red culture represented by the spirit of southern Shaanxi soviet area. We should accelerate the new development of the old revolutionary base areas in southern Shaanxi, inherit and carry forward the spirit of the soviet Area in southern Shaanxi by taking red as the base; In order to realize the rural revitalization of the old revolutionary base areas, we should focus on developing the green economy of Southern Shaanxi with characteristics as the basis, highlighting the endogenous advantages of southern Shaanxi.
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    Bibliometric analysis of China national park ecological protection based on CiteSpace
    FU Xiao, WANG Lin, ZHU Chuang-ye
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 5-10.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.001
    Abstract （401）      PDF （3241KB）（380）       Save
    Using CiteSpace software, this paper reviewed the research process of ecological protection of national parks based on 482 literatures from CNKI from 2001 to 2020. The results showed that,during the study period, the number of papers on ecological protection of national parks was increasing continuously, and the cumulative number of papers was in line with the exponential growth, which was in the stage of great development. The cooperation between the authors was mainly academic relationship, and the external cooperation was less. Beijing Forestry University, Institute of Geographical Resources of Chinese Academy of Sciences and Department of Geographical Sciences of Beijing Normal University were the core publishing institutions. The order of the apparent hot spot clusters was：ecological space, ecological compensation, ecological civilization thought, ecological tourism, nature reserves. Giant panda National Park, coordination mechanism, functional zoning, legal system, environmental education and ecological compensation standards have become the emerging research hotspots in each cluster. The results depicted the knowledge map of national park ecological protection, and provided a reference for the study of national park ecological protection.
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    Research progress in response of plant reproductive strategies to altitude
    WANG Chao, LU Jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 11-14.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.002
    Abstract （460）      PDF （1531KB）（496）       Save
    Based on the recent literature on the response of plant reproductive strategies to altitude, the variation characteristics of adaptive strategies in plant reproductive phenology, leaf functional traits, reproductive allocation, seed number, size and offspring characteristics at different altitudes were summarized. On this basis, the research status and future development direction in this field were summarized, in order to enrich the research of plant reproductive ecology.
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    Breeding of Jia1S,a photosensitive two-line male-sterile indica line
    LIU Shan-de, CHEN Mu-yan, ZHANG Hong, HU Gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 15-17.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.003
    Abstract （350）      PDF （1521KB）（193）       Save
    Jia1S, a photosensitive two-line male-sterile, middle-season indica line, was developed through systematic selection method by using Yiling P88S cross Hunong 3S, after 8 years /10 generations, a photosensitive plant was detected at 7th generation low temperature at summer, again detected at 9th generation regrowth, after back crossing with Ben15, a stable photosensitive two-line male sterile line was developed and named Jia1S. It has stable fertility, fertilizer tolerance, logging free, high outcross and match. It has great potential for makketing and agriculture industry.
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    Microclimatic and photosynthetic characteristics of cotton field intercropping systems
    CUI Ai-hua, LIU Shuai, HUANG Guo-qin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 18-25.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.004
    Abstract （390）      PDF （4320KB）（260）       Save
    The microclimatic characteristics of cotton intercropping systems were discussed, and the photosynthetic characteristics of crops except cotton in intercropping system were further studied. Three cotton intercropping treatments were designed in this study, cotton intercropping soybean, cotton intercropping maize and cotton intercropping sweet potato, which were compared with cotton monoculture, soybean monoculture, maize monoculture and sweet potato monoculture. The light intensity, air humidity and air temperature of the intercropping systems were analyzed. The results showed that the diurnal variation trend of air relative humidity in each treatment was U curve, cotton intercropping patterns could improve the air humidity compared with corresponding monoculture patterns, the air humidity of soybean monoculture and maize monoculture were higher than that of cotton monoculture, but the air humidity of sweet potato monoculture was lower than that of cotton monoculture; The trend of the daily change of air temperature in each pattern showed a tendency to increase first and then decrease, cotton intercropping patterns could decrease the air temperature than the corresponding monoculture patterns, the air temperature of cotton monoculture was higher than maize monoculture, but there were no significant differences between soybean monoculture and sweet potato monoculture. In soybean monoculture, maize monoculture and sweet potato monoculture, the phenomenon of “photosynthetic midday break” appeared. The phenomenon of “photosynthetic midday break” of soybean and sweet potato under intercropping pattern was obviously improved. The changes of net photosynthetic rate, stomatal conductance and transpiration rate were consistent：soybean monoculture treatment > cotton intercropping soybean treatment, sweet potato monoculture pattern > cotton intercropping sweet potato treatment, cotton intercropping maize treatment > maize monoculture treatment, but the manifestation of the concentration of intercellular CO2 was opposite. Overall, cotton intercropping sweet potato model had more advantages than other intercropping models in improving the phenomenon of “photosynthetic midday break”, reducing the air temperature and increasing the air humidity in the system.
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    Effect of tillage methods on grain filling characteristics and yield of maize in semi-arid area of Songnen plain
    ZHANG Ji-wei, WANG YU-feng, ZHANG Yi-fei, LI Qing, YANG Ke-jun, TANG Zi-chun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 26-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.005
    Abstract （383）      PDF （1586KB）（222）       Save
    Tillage method is the main factor limiting the increase of maize （Zea mays L.） yield in semi-arid areas of Songnen plain. To explore a kind of maize high-yield cultivation method from the angle of corn grain filling for the semi-arid area of Songnen plain, taking Xianyu 335 as the test material, six kinds of tillage methods, such as deep ploughing and ridge tillage in autumn, deep ploughing and flat tillage in autumn, rotary and ridge tillage in autumn, rotary and flat tillage in autumn, rotary and ridge tillage in spring, rotary and flat tillage in spring, were set up to study the effect of tillage on maize grain grouting characteristics and yield. The results showed that the growth rate was positively correlated with the yield of maize （P<0.01） and the grain weight of maize （P<0.05）. Compared with other treatments, deep ploughing and flat tillage in autumn can increase the photosynthetic rate, the grain dry weight of maize during the pulping period, the peak of maize irrigation rate, the biomass when the maize irrigation rate was the largest, the grain weight of maize and the yield of maize. The yield of maize was the highest at 11 141.93 kg/hm2 under the treatment of deep ploughing and flat tillage in autumn. Therefore, the yield of maize in semi-arid area of Songnen plain can be improved by adopting autumn-deep flattening treatment.
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    Analysis on the structure of corn production and output in Shandong province——Based on a survey of 300 rural households
    ZHAO Shun-hong, MENG Zi-heng, JIA Shu-han, LI Shu-chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 31-35.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.006
    Abstract （416）      PDF （1549KB）（232）       Save
    Corn plays an important role in my country's food security and industrial production. Scientific analysis of the influencing factors of corn production is of great significance to increase the yield of corn, increase farmers' income and promote rural economic development. Based on the field survey data of corn planting farmers in Shandong province in 2019, this paper used the C-D production function to analyze the factors affecting corn production in Shandong province. The results showed that capital input and planting area had a significant positive effect on corn output, and labor and whether the implementation of grain reform for feed had a significant negative effect on corn output. The influence of technical support and cooperatives were not significant. Increase capital investment to promote the upgrading of production structure and the dissemination of production technology; encourage innovation in agricultural sciences and realize the conversion of results as soon as possible; cultivate new farmers and strengthen technical guidance to farmers; regulate cooperative management and give full play to cooperative functions.
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    Study on the introduction and screening of new colored potato varieties（lines）
    ZONG Hong-xia, XU Qian, LI Bao-zheng, XIAO Bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 36-38.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.007
    Abstract （439）      PDF （1513KB）（296）       Save
    In order to screen out new colored potato varieties（lines） suitable for planting in Chongqing, the nine colored potato varieties（lines） introduced were screened and compared with Ziyun No.1 as control. The results showed that the variety Hongmei had high yield, high single potato weight, high commodity rate, good disease resistance, moderate anthocyanin content and good taste. It is an excellent variety suitable for planting in Chongqing city.
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    Impact of the cultivation density and the change in field microclimate on the output of cotton
    LI Ji-hui, XIANG Dao, YANG Ming-feng, LIU Yong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 39-41.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.008
    Abstract （510）      PDF （1537KB）（220）       Save
    To control the proper cotton planting density and field microclimate, Xinluzao No.45 cotton was taken as the experimental variety to design 5 different densities, and the temperature at different levels of population, relative air humidity, light transmittance and illumination intensity as well as the agronomic traits of the cotton in the harvest time were measured when the max canopy density in the later period of cotton efflorescence. The results showed that there was little difference in temperature among populations with different densities, while the difference of gradient temperature among plants was significant. The proper gradient temperature difference suitable for cotton populations was less than 0.4 ℃. The relative air humidity with high density treatment （270 000 plants/hm2） among populations were 3 percentage point higher than that with low density treatment（90 000 plants/hm2）. In order to achieve high yield, the ground light transmittance among cotton plants should be more than 5.5%. The planting density of cotton had significant negative correlation with the plant height, stem diameter, single boll number and weight. Under the current cultivation and management level, the planting density of northern Xinjiang early-maturing cotton variety should be 180 000~220 000 plants/hm2.
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    Temporal and spatial analysis and countermeasures of agricultural non-point source pollution in Guangdong province under the background of rural revitalization
    ZHANG Ming-hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 42-50.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.009
    Abstract （431）      PDF （8171KB）（150）       Save
    Agricultural non-point source pollution is one of the main reasons that affect the deterioration of rural ecological environment, which seriously restricts rural greening, agricultural efficiency and farmers' income. Taking Guangdong province as an example, the pollutant discharge coefficient method was used to estimate the chemical oxygen demand （COD）, total nitrogen （TN） and total phosphorus （TP） pollution load of agricultural non-point source pollution from 2008 to 2017, and its spatial distribution was visually analyzed with ArcGIS 10.2. Through the average emission of each pollutant and its comprehensive index, the risk analysis of agricultural non-point source pollution intensity in 21 cities of Guangdong province was carried out and targeted measures were proposed. The results showed that the COD, TN and TP pollutant emissions in rural areas of Guangdong province were 1 044 700 tons, 168 700 tons and 24 500 tons respectively in 2017. The pollution intensity of COD, TN and TP from 2008 to 2017 showed a trend of decreasing year by year. However, the changes in some regions from 2016 to 2017 were obvious, mainly due to the increase in fertilizer use and livestock and poultry farming. The order of agricultural non-point source pollution risks in 21 cities showed as decreased order of Maoming, Shantou, Zhanjiang, Zhuhai, Foshan, Yangjiang, Zhongshan, Jiangmen, Jieyang, Zhaoqing, Chaozhou, Shanwei, Guangzhou, Qingyuan, Yunfu, Shenzhen, Meizhou, Huizhou, Shaoguan, Heyuan and Dongguan. In the context of rural revitalization, this paper explores the temporal and spatial distribution and risk characteristics of agricultural non-point source pollution, and proposes targeted measures for pollution prevention and control, which is conducive to Guangdong's agricultural green development action and promote the construction of “beautiful China”.
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    Analysis of a typical heavy pollution process in Changsha city in early 2019
    HU Yan, YANG Yun-yun, LIU Huan-qian, YIN Zhong-hai, ZHOU Hui, WANG Xiao-lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 51-59.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.010
    Abstract （421）      PDF （13749KB）（49）       Save
    The hourly air quality index （AQI） and six major pollutants monitoring data of 14 national control stations from January 5 to 8, 2019, meteorological observation data, wind profile radar data and FY-4 satellite data of corresponding periods provided by Hunan ecological environment monitoring center were used to deeply analyse a severe pollution weather process in Changsha city in early January 2019, combined with the HYSPLIT4 backward trajectory. The results showed that the severely polluted weather process in Changsha city was a process of taking PM2.5 as the primary pollutant. The backward trajectory analysis showed that the tracks of the air masses in the middle and lower layers were the same. Affected by the superposition of air masses, the pollutant of long-distance transmission from central Henan province affected Changsha city, which was one of the main pollution sources. In the accumulation and outbreak stage, the stable low and medium cloud was the main part, and TBB was more than -10 ℃. According to the analysis of wind profile data in the outbreak stage, pollutants were transported to Changsha city with the northeast air flow, and the input of external sources was dominant. From 850 hPa to 700 hPa, there were obvious inversion layer or isothermal layer in the middle and low relative humidity in the upper air, which were favorable meteorological factors for this heavy pollution weather.
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    Study on remote sensing classification of land utilization in Yanshi city
    WANG Guo-zhong, LI Zhong-yuan, ZHANG Ji-yu, CHENG Huan-ling, LI Jia-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 60-62.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.011
    Abstract （402）      PDF （4421KB）（205）       Save
    To grasp true and accurate land data in Yanshi city, Henan province, the classing methods were adopted by support vector （SVM） and maximum likelihood （ML） to classify its land use types in 2016 with landsat8 images. The results showed that both methods had high classification accuracy, but the SVM classification accuracy was slightly lower, which could be related to the selected parameters, the influence of kernel function and the training sample.
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    Soil quality monitoring and diagnosis analysis of pepper-cabbage rotation system under different fertilization treatments
    DU Lei, WANG Su-ping, CHEN Gang, HUANG Xiang, ZHANG Gui-you, JIANG Li, CHENG Wei-shun, LUO Xi, ZHANG Li-hong, HONG Juan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 63-67.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.012
    Abstract （368）      PDF （1609KB）（198）       Save
    This study investigated the monitored and diagnosed effects of three different fertilization treatments on the soil quality of the chili-cabbage rotation pattern by the field plot test. The results showed that through monitoring and diagnosis of soil physical and chemical properties of two crops,the trend of soil physical indexes in the chili season was coincident with the cabbage season. Fertilization could improve the soil physical properties, but the recommended fertilization（OPT） treatment effect was more effective. Compared with the no fertilizer control （CK）, OPT treatment significantly reduced the soil bulk density, increased soil porosity, saturated water content and field water holding capacity（P<0.05）. All fertilization treatments had soil acidification, FP treatment was the most significant, and the soil pH was reduced by 12.41% compared with CK. The nutrients in each treatment increased with the extension of planting time. After the two rotation of the species, the electrical conductivity （EC） value, total nitrogen andcationicexchange content（CEC） of the FP treatment and OPT treatment were significantly higher than the CK（P<0.05）, but the exchangable calcium and magnesium contents were no significant difference with the CK treatment（P>0.05）. The content of soil organic matter was significantly higher in the OPT treatment than in the FP treatment and CK （P<0.05）, which was 50.68% higher than CK. This experiment proved that replacing part of fertilizer with organic fertilizer could improve soil quality.
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    Comparative analysis of two low temperature rain and snow freezing processes in January 2018 in Hunan province
    ZHOU Hui, HUANG Jiao-wen, SU Tao, CAI Rong-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 68-73.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.013
    Abstract （385）      PDF （16115KB）（44）       Save
    Based on the routine observation datas and NCEP reanalysis datas, a comparative analysis of two cold rain, snow and freezing weather processes in Hunan province in January 2018 was carried out. The results showed that there were many kinds of disastrous weather during the process, such as blizzard, freezing rain, strong cooling, northerly gale and thunderstorm. The process on January 24 to 31 had a wider range of influence, stronger intensity and longer duration than the process on 3 to 8. The dynamic condition and thermal condition was different, and it was pointed out that the thunderstorm and snowstorm occurred in the north of central Hunan province on January 27. The analysis showed that front area at 500 hPa, the strength of cold center, the cold advection intensity in 850 hPa, the intensity of cold high pressure on the ground and the pressure gradient at the front are of great significance for the determination of the intensity of cold air. Humidity and temperature stratification are the key factors for the transformation of the phase state of rain and snow in 700 hPa in south China.
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    Isolation,identification and degradation characteristics of tobacco stem lignocellulose-degrading bacteria HF-09
    WU Chang-wei, GONG Xin-guo, ZHANG Bo, LI Xian, ZHENG Lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 74-77.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.014
    Abstract （401）      PDF （3232KB）（183）       Save
    In order to reduce the content of lignocellulose in tobacco stems and solve the problem of low industrial use value, bacteria with potential for degradation of tobacco stem lignocellulose were screened. A cellulase screening medium was used to isolate a tobacco lignocellulose-degrading strain HF-09 from tobacco cultivation soil in Kunming city. After morphological observation and physiological and biochemical analysis, combined with 16S rRNA sequencing and phylogenetic analysis, the strain was identified as Bacillus velezensis. The survival rate of the bacterium was above 90% in the range of pH 5~9 or below 75 ℃, and it reached the logarithmic growth phase in 8~20 h, which had strong adaptability. After 10-day degradation of tobacco stems of Hongda （C3F）, the cellulose degradation rate was 20.82%, the hemicellulose degradation rate was 30.28%, and the lignin degradation rate was 19.34%. At the same time, scanning electron microscopy showed that the bacteria had a significant ability to damage the structure of tobacco stems.
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    Effects of application of biological agents on yield and quality of flue cured tobacco
    WANG Yi, LIU Zhi-gang, GUAN En-sen, GAO Kai, WANG Da-hai, ZHANG Guo-chao, LIU Chun-ju, WANG De-quan, GAO Zheng-xu, DU Chuan-yin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 78-81.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.015
    Abstract （459）      PDF （1685KB）（319）       Save
    In order to determine the effects of autochthonous propagation agent and phosphate- and potassium- solubilizing bacteria on the growth, yield and quality of tobacco, a field experiment were designed. The results showed that compared with CK （conventional fertilization）, there was no significant differences of agronomical traits, incidence of viral diseases and disease index treated with T1 （conventional fertilization+indigenous bacteria expanding agent + soil solubilizing phosphate and potassium releasing microbial inoculum） and T2 （conventional fertilization+indigenous bacteria multiplication agent） in the cluster stage. In the topping stage, for T1 and T2, the maximum leaf length increased by 11.06% and 10.83%, the maximum leaf width increased by 15.02% and 20.25%, and the maximum leaf area increased by 27.75% and 33.27%, respectively. While incidence of black tibia decreased by 55.6% and 44.4%, and the disease index decreased by 57.6% and 33.4%, respectively. In terms of economic characters, the yield of T1 and T2 treatment increased by 10.10% and 9.92%, the output value increased by 23.06% and 21.09%, respectively. In conclusion, the application of autochthonous propagation agent and phosphate- and potassium-solubilizing bacteria were beneficial to improve agronomic traits of tobacco plant in the topping stage, improve resistance to root black rot and improve economic traits of tobacco plant, and the application of autochthonous propagation agent and soil phosphate- and potassium- solubilizing bacteria was more effective.
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    Effects of silicon and selenium on cold resistance of Dendrobium candidum in low temperature stress
    DING Jiu-ling, ZHENG Kai, TANG Dong-fen, XI Gang-jun, SHI Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 82-86.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.016
    Abstract （500）      PDF （1597KB）（175）       Save
    To explore the effects of silicon and selenium on cold resistance of Dendrobium candidum in low temperature stress, this study is based on Dendrobium candidum seedlings as experimental material, the stress of low temperature 2 ℃ after 7 d, with different concentrations of exogenous silicon and selenium compound spraying on the leaf. The silicon and selenium were all set up 12 kinds of complex dispensing. The results showed that silicon and selenium should be used together in low temperature stress, which was reflected in the increase of chlorophyll content and Pro content, the increase of POD, SOD and CAT activity, and the decrease of MDA content. This indicated that silicon and selenium treatment（50 mg/L silicon+5 mg/L selenium, 50 mg/L silicon+7.5 mg/L selenium） could increase the cold resistance of Dendrobium candidum seedlings, which was achieved by means of enhancing the anti-oxidative enzyme activities, chlorophyll content and Pro content, and decreasing the MDA content to reduce injury of low temperature stress.
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    Study on the intercellular CO2 concentration and stomatal limitation and non-stomata limitation of Populus euphratica leaves
    LIN Bing, WU Sheng-li, GUAN Wen-ke, SONG Chuan, SHI Zhi-xin, HE Yu-xiang, YUE Yong-jiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 87-92.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.017
    Abstract （499）      PDF （1651KB）（409）       Save
    The LI-6400 portable photosynthetic instrument （LI-COR,USA） was used to measure the photosynthetic physiological parameters of Populus euphratica growing in the extreme arid area along the Tarim River. Based on the analysis of the dynamic changes of the intercellular CO2 concentration of P. euphratica, the stomata limitation and non-stomata limitation of P. euphratica were further discussed and explored. The results showed, the intercellular CO2 concentration of P. euphratica leaves in the growing season showed a “V”-shaped change trend, and the lowest values ??all appeared at 14：00. The intercellular CO2 concentration of P. euphratica changed synchronously with changes in influencing factors including external CO2 concentration, stomatal conductance, net photosynthetic rate and transpiration rate：it was basically consistent with the change law of external CO2 concentration; It was opposite to the change law of stomatal conductance, net photosynthetic rate and transpiration rate, showing a negative correlation. The change law of the stomatal limit value Ls of P. euphratica leaves showed a trend of first increasing and then decreasing, which was lower in the morning and evening and higher at noon. The non-stomata limitation index Ci/Gs and stomata limitation Ls change in the opposite way. The decline of P. euphratica net photosynthesis rate was mainly due to non-stomata limitation, but the effect of stoma limitation cannot be ruled out. Similarly, when the net photosynthesis rate decline was mainly due to non-stomata limitation, it cannot be ruled out. Combining the two judgment basis of stomata limitation value Ls and non-stomata limitation can further understand P. euphratica stoma limitation and non-stomata limitation.
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    Morphological responses and adaptation of Haloxylon ammodendron seedlings to light
    HU Xiao-jing, ZHANG Xue-qin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 93-96.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.018
    Abstract （397）      PDF （1547KB）（220）       Save
    To interpret and predict the responses to shading, Haloxylon ammodendron seedlings were grown at four transmittance levels of 100%,75%, 35% and 5% of full natural light in field environment with artificially controlled light regimes for one growing season. Morphology and survival rates of these seedlings were measured to investigate their shade acclimation mechanisms. The results showed that, the branching angle of H. ammodendron seedlings at 100% transmittance level is higher and 1.60, 1.77 and 1.89 times than that at the other transmittance levels. The branches of H. ammodendron seedlings have an adaptation to different light conditions. The root, stem branch biomass and total biomass of H. ammodendron seedlings are significantly reduced with the decreasing of the light intensity and the difference is significant（P<0.05）. But the pattern of the biomass allocation parameters is not obvious. With the decreasing of the light intensity, the index of morphological plasticity has a trend of reduce, but the variation is smaller. We concluded that H. ammodendron seedlings plastically adapt to different light conditions through changes in morphological characteristics to maximize carbon gain.
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    Patterns of dead trees in secondary forests of Baimajian,Dabieshan mountain
    WANG Zhi-gao, CAO Hua, ZHANG Chuan-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 97-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.019
    Abstract （367）      PDF （1539KB）（256）       Save
    The dead trees in Baimajian of Dabieshan mountain were analyzed to explore the reasons leading to tree death. The results showed more of the dead trees especially smaller class individuals dominated in this forest, dead trees with a breast diameter of less than 5 cm account for more than 30% of the total number of dead trees. The abundance of dead trees positively related to the abundance of living species. 41.7%, 66.0% and 60.0% of the dead trees were from the sprouting. Competition is the main reason of tree death in this secondary forest, further researches should explore the mechanism of tree death at larger scales.
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    Evaluation on the suitability of prickly ash cultivation in Jialing River basin of Baoji section
    XUE Si-wen, ZHOU Qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 101-104.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.020
    Abstract （407）      PDF （6562KB）（234）       Save
    In order to understand the influence of water supply factor, feed factor, erosion factor and heat factor on the suitability of pepper planting in Jialing River basin of Baoji section of Fengxian county, this study established the suitability evaluation system of prickly ash planting in Jialing River basin of Baoji section, studied the raster image of spatial distribution grade of each influence factor in the basin, and divided the suitability of prickly ash planting in the basin. The results showed that, the dry land distribution in Jialing River basin of Baoji section is relatively scattered, and the areas suitable for planting prickly ash are few, and they are all near the water source. Therefore, most dry land was not suitable for growing prickly ash. Among them, 1.508 square kilometers of dry land was not suitable for planting prickly ash, accounting for 21.4%. Generally, it covered 1.975 square kilometers, accounting for 37.9% of the total dry land area. The suitable area was only 2.684 square kilometers, accounting for 27.9%. Very suitable dry land area was also very small, 0.909 square kilometers, accounting for about 12.8%. So there are very few areas suitable for planting prickly ash in the Jialing River, to some extent, people are reminded that proper fertilizer should be applied when planting prickly ash. In the tillage process, soil supervision should be strengthened to avoid pollutants from entering the soil, so as to improve the utilization rate of dry land.
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    Process optimization and quality analysis of papaya beverage fermented by probiotics
    YAO Rui-qi, GAO Min, GE Han-jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 105-109.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.021
    Abstract （473）      PDF （1949KB）（285）       Save
    Using Chaenomeles sinensis as raw material, probiotics as fermenting microbe,the fermentation process and quality changes of Chaenomeles sinensis beverage were studied. The results showed that Lactobacillus plantarum and Lactobacillus paracasei could be used for the fermentation of Chaenomeles sinensis beverage after domestication, and the suitable mixture ratio was 4∶6. The optimal fermentation conditions were obtained as follows: Fermentation temperature 36 ℃, inoculation amount 2.5%, fermentation time 24 h. Under these conditions, the number of viable bacteria could be reached 8.79 lg（cfu/mL） and the acid production was 12.2 g/kg. Probiotics fermentation had a great influence on the contents of total acid, free phenol and bound phenol, which was beneficial to improve the nutritional quality of Chaenomeles sinensis beverage. The total acid content increased by 8.01%, the free phenol increased by 38.5%, and the bound phenol decreased by 51.9%.
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    Study on processing of Rosa sterilis slice of intermediate moisture
    PAN Peng-ju, LI Yu-qiang, LI Dong-ping, YANG Ling
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 110-113.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.022
    Abstract （400）      PDF （3539KB）（191）       Save
    In order to reduce the decay loss of Rosa sterilis' fruits after harvest, and obtain healthy food with nutritional value and unique flavor, the fruit slices of intermediate moisture were developed. The experiment were carried out with the fresh fruits based on microwave drying technique. The results showed that the satisfactory fruit slices of intermediate moisture was made from cut pieces after blanching for 90 s and then dehydrating by microwave intermittent drying. Its water content is 21.58% and water activity is 0.62, golden color, soft and tightness, with fresh fragrance of Rosa sterilis, and its vitamin C content is 1 664.25 mg/100 g.
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    Determination of inorganic anions and melamine in fertilizers by ion chromatography
    LIANG Chen, PENG Hao, ZHENG Xiu-jin, SHAO Guang-yin, ZHANG Jin-mei, ZHANG Miao-miao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 114-118.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.023
    Abstract （336）      PDF （1570KB）（147）       Save
    Develop a method for the determination of norganic anions and melaminein in fertilizer by ion chromatography（IC）. The fertilizer sample was ultrasonically extracted with 7 g/L trichloroacetic acid solution and centrifuged. The supernatant was purified by a solid phase extraction column. The anion in the solution was purified with SH-AP-1 （250 mm×4.0 mm） was a separation column, measured by a suppressed conductivity detector; SH-CC-4 （200 mm×4.0 mm） was used as a separation column for melamine in solution, detected by UV detector. Results show that the mass concentration of anions and cations had a linear relationship with their peak areas within a certain range, and all correlation coefficient（r） were more than 0.999,with the average recoveries range from 93.4% to 104.4%, and the precision（n=6） values below 4%. The method can be widely applied to the detection of anions and cations in a variety of fertilizer samples.
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    Analysis of phthalate esters pollution in soils of facility vegetable bases of Yangling
    LI Guo-xiu, CUI Li-hui, LIU Wei, LIU Xiao-ning
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 119-122.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.024
    Abstract （330）      PDF （1576KB）（146）       Save
    In order to evaluate the pollution status of phthalate esters （PAEs） in soils of Yangling facility vegetable bases, 15 PAEs were detected and analyzed in soil samples by gas chromatography-mass spectrometry. The results showed that 12 PAEs were detected in the analyzed soil samples, the total contents of which ranged from 53.4 μg/kg to 3 524.1 μg/kg, with an average value of 602.7 μg/kg. The detection rates of DEHP, DBP, DIBP, DMEP, BBP, DNOP were 100%, 100%, 100%, 73.3%, 63.3%, 53.3%, respectively. And their average contents were 286.3, 167.3, 123.1, 157.6, 121.3, 130.5 μg/kg, respectively. Compared with soils in other regions,the pollution level of PAEs in vegetable base soils of Yangling is lower, but such compounds are ubiquitous in facility vegetable base soils, and the potential environmental risks should be paid attention to.
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    Study on the changes of volatile components in qingxiang liquor irradiated by 60Co
    HE Jiang, FENG Feng, GAO Peng, GAO Fei, ZHANG Feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 123-126.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.025
    Abstract （505）      PDF （1508KB）（188）       Save
    The volatile components of qingxiang liquor with different irradiation doses in the range of 10 kGy were determined by gas chromatography-mass spectrometry （GC-MS）. The relative content of volatile components in liquor was analyzed. The results showed that the relative content of acid （total acid） increased with the increase of irradiation dose, the relative content of ester （total ester） decreased with the increase of irradiation dose, the content of acetic acid increased gradually, ethyl lactic acid decreased gradually, isobutol and isoamyl alcohol showed a downward trend, acetic acid, ethyl lactic acid, the changes of isobutylalcohol and isoamyl alcohol in irradiated aging liquor were similar to those in natural aging liquor.
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    Spatial and temporal distribution of Bursaphelenchus xylophilus in Yiling district based on GIS
    ZHOU Dan, XIAO Zheng-li, ZHAO Yong, TIAN Jing-bo, LI Zu-mei, JING Shun-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 127-133.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.026
    Abstract （356）      PDF （5402KB）（325）       Save
    Taking the GIS management of Bursaphelenchus xylophilus tree felling in Yiling district as an example,the spatial positions of epidemicwood in the two years from 2019 to 2020 were collected. The spatial data management function of ArcGIS software was used to collect point and surface layers. Spatial information map was drawn by spatial visualization, trend surface, spatial autocorrelation, nearest neighbor distance index and spatial-temporal clustering analysis ofkernel density, so as to intuitively understand the evolution of spatial pattern trend of pine wood nematode disease, and to explain the variation rule and diffusion characteristics of pine wood nematode disease. Analysis results showed that under the control measures, the affected pine forests and epidemic sites （subcompartment） decreased in 2020. The epidemic trend of pine nematode in the two years was in the east and west, with a high value in the east, and the trend line was almost straight line. The outbreak of pine nematode showed cone-shaped central point aggregation and spread. The spatial and temporal clustering characteristics of the epidemic show spatial clustering in the overall pattern, high clustering of pine victims caused by the spread of the epidemic source and clustering distribution pattern of epidemic points. The epidemic situation of Bursaphelenchus xylophilus disease in this region has a certain number of epidemic spots and a wide distribution area, the epidemic situation is difficult to eradicate in a short time. On the comprehensive measures, weshould increase the clearing of epidemic trees, block the spread of the epidemic situation in the new areas, reduce the epidemic spots, regulate the density of pine trees by forest management, reduce the density of Monochamus alternatus and establish a broad-leaved forest ecosystem.
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    Construction and implementation of fresh agricultural products cold chain logistics platform based on component library technology
    DUAN Rui, CHENG Zhi-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 134-137.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.027
    Abstract （408）      PDF （1831KB）（225）       Save
    In order to comprehensively optimize the difficulties in popularization and application of cold chain logistics of fresh agricultural products in some areas of China, this research designed a cloud service platform for fresh agricultural products logistics based on component library technology. Through the design of cold chain logistics data communication protocol, the unified access of agricultural products cold chain logistics network detection equipment is realized. Component library and cloud computing technology are used to provide independent functional units, remote services and reuse software resources for the cold chain logistics system of fresh agricultural products.
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    Effects of different hormones on induction of clustered buds from budded stems of Glycyrrhiza uralensis Fisch
    FU Li, ZHANG Dong-xiang, LIU An-qi, LYU Qing, LI Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 138-142.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.028
    Abstract （345）      PDF （1562KB）（237）       Save
    Single factor variable and different hormone combination design were used to observe the effect of different hormone ratio on the induction of clustered buds from the bud stem of Glycyrrhiza uralensis Fisch. The results showed that the best hormone combination for inducing cluster buds was MS+0.5 mg/L 6-BA+0.5 mg/L KT, and the average multiplication factor of cluster buds reached 5 times. Appropriate hormone ratio is beneficial to the induction of clustered buds from the budded stems of Glycyrrhiza uralensis Fisch, and provides theoretical and technical basis for the application of rapid propagation technology of Glycyrrhiza uralensis Fisch.
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    Somatic embryogenesis and plant regeneration of Camellia oleifera in Macheng
    PANG Fang-qin, ZHANG Jing-yi, LIU Qian, TANG Xin-xin, HU Xiao-ming, ZHU Hua-guo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 143-145.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.029
    Abstract （381）      PDF （4455KB）（202）       Save
    To establish a technical system for regeneration of Camellia oleifera by somatic embryogenesis. The immature embryos of Hubei Macheng Camellia oleifera in the middle of July were used as experimental materials. After sterilization, immature embryos were cut into pieces and inoculated on MS medium supplemented with 2.0 mg/L 2,4-D+1.0 mg/L KT and 5.0 mg/L NAA+1.0 mg/L KT, respectively. One month later, the callus induction rates of the two treatments were 83.23% and 45.34%, respectively. The callus was selected to be subculture on MS medium with 1.0 mg/L NAA+1.0 mg/L KT. After two months, obvious somatic embryos were observed, and the average induction rate of embryoid was 15.25%; the embryoids were then subcultured on MS medium supplemented with 1.0 mg/L NAA+3.0 mg/L 6-BA for embryoid development and plantlet regeneration. And then embryoids were transferred to 1/2MS medium containing 3.0 mg/L 6-BA for rooting culture. Complete regenerated plants can be obtained, and then domesticated and transplanted to the bowl for further growth. The technology system of somatic embryogenesis and plant regeneration in Macheng Camellia oleiferawas established in this study, which laid a foundation for the establishment of Agrobacterium mediated transformation technology system of Camellia oleifera.
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    Current situation, development difficulties and suggestions of rape industry in Shishou city
    FU Wei-xin, XU Shang-jun, CHEN Wen, YUAN Hang, LIAO Han-yu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 146-148.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.030
    Abstract （531）      PDF （1515KB）（370）       Save
    Rape is one of the advantageous agricultural industries in Shishou city. In order to better develop the rape industry, this paper analyzed the current situation of rape production and industry in recent years, and concluded that the rape industry in Shishou was faced with such difficulties as low market price, large disaster impact, poor infrastructure, low production level and difficulties in industrial development. And from the policy, area, characteristics, technology, industrial chain and other aspects of countermeasures.
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    Influence of family endowment on agricultural insurance purchase behavior of rice and shrimp farmers：Comparative analysis based on two attributes of agricultural products
    TIAN Zhuo-ya, QI Zhen-hong, YANG Cai-yan, LIU Zhe
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 149-155.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.031
    Abstract （385）      PDF （1577KB）（291）       Save
    Based on the field survey data of farmers in Hubei, Hunan and Anhui provinces, this paper used entropy method and binary Logistic model to analyze the impact of family endowment on agricultural insurance purchasing behavior of rice and shrimp farmers, and conducted comparative analysis on agricultural insurance purchasing behavior of farmers based on rice and crayfish with two attributes. The results show that, on the whole, the purchasing rate of agricultural insurance is higher. Social capital endowment and economic capital endowment significantly positively affect farmers' purchasing behavior of agricultural insurance. The influence of family endowment on the purchasing behavior of agricultural insurance of farmers with two attributes are different. Social capital endowment significantly promotes the purchasing behavior of rice insurance of farmers, and economic capital endowment promotes the purchasing behavior of agricultural insurance of farmers with two attributes. Therefore, it is necessary to improve the level of comprehensive capital endowment of farmers and pay attention to the different attributes of agricultural products to improve the purchasing level of agricultural insurance of farmers.
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    The canonical correlation analysis of per capita disposable income of rural residents in Lanzhou city
    WEI Yun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 156-161.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.032
    Abstract （478）      PDF （1564KB）（250）       Save
    By using canonical correlation analysis, the correlation between per capita disposable income of rural residents and input and output of agricultural production in Lanzhou city from 1995 to 2018 was analyzed. The results show that the total retail sales of social consumer goods, the total population at the end of the year, cultivated area, the number of practitioners of agriculture, forestry, animal husbandry and fishery and the sown area of crops are the inputs that have the greatest impact on the per capita disposable income of rural residents in Lanzhou city. Crop sown area and the amount of chemical fertilizer are the inputs that have the greatest influence on the total grain output in Lanzhou city. Finally, according to Fisher optimal segmentation method, the agricultural production development of Lanzhou city from 1995 to 2018 was divided into four stages, and the existing problems and solutions in the current stage of development were pointed out through data analysis.
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    Study on the effect evaluation of human settlements improvement of the 12th division company of Xinjiang Production and Construction Corps
    LI Wei, YANG Xiao-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 162-169.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.033
    Abstract （389）      PDF （1579KB）（324）       Save
    Taking the 12th division's company human settlement environment improvement as a research sample,using questionnaire surveys and interviews to conduct field research on the company's settlement environment improvement,constructing an evaluation index system based on the rural revitalization strategic plan, the index weight is determined by analytic hierarchy process, and the effect of human settlement improvement is evaluated by fuzzy method. The results show that the overall evaluation of the human settlement environment improvement of the 12th division company is 7.354. Among them, the score of economic foundation is the highest, which is 7.740, the score of living environment is 7.532, the score of organization and management is 7.094, and the score of operation guarantee is 7.426. On the whole, the improvement effect of the 12th division company is good, but it is still necessary to strengthen the support and leadership of the grassroots organizations, establish demonstration company, explore new remediation mode and build long-term mechanism, and optimize the remediation level of living environment of Corps company.
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    Empirical analysis on the relationship between agricultural science and technology progress and farmers' income growth in Shandong province
    LU Cheng, LI Jing-suo, PENG Xing-zhen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 170-175.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.034
    Abstract （362）      PDF （1930KB）（181）       Save
    Based on the relative statistic data of Shandong province from 1994 to 2018, On the basis of measuring the progress rate and contribution rate of agricultural science and technology,VAR model was used to analyze the relationship between agricultural science and technology progress and farmers' income in Shandong province. The results show that in the long-term and short term, the Shandong province agricultural science and technology progress is conducive to promoting the farmers' income growth, the farmers' income growth can also increase investment in agricultural science and technology, and then promote the overall level of agricultural science and technology in Shandong province, farmers' income growth and agricultural science and technology progress mutually Granger reason. Finally, for the purpose of the farmers' income growth, it is proposed to improve the innovation system of agricultural science and technology to accelerate the innovation of agricultural technology, strengthen the extension system of agricultural science and technology to accelerate the rapid transformation of agricultural advanced technology into productive forces, perfect the transfer system of agricultural labor force to indirectly increase farmers' income, and vigorously develop high-quality agriculture to open up wider international market.
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    Analysis on the bottleneck and countermeasures of tea export trade in Hubei province
    WU Ya-ling, FANG Yan-zhen, CHEN Qing, LI Lin-bo, LEI Shu-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 176-180.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.035
    Abstract （619）      PDF （1522KB）（510）       Save
    Based on the current situation of tea production and brand building in Hubei province, this paper analyzes the advantages and problems of tea export trade in Hubei province under the new development pattern of double circulation, and puts forward countermeasures and suggestions for the development of tea trade in Hubei province from the aspects of product competitiveness, improvement of industrial chain, export policy support.
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    Low-carbon path of rural tourism in Shaanxi province based on the “productive-living-ecological synchronization”
    HUA Fei-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 181-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.036
    Abstract （416）      PDF （1499KB）（222）       Save
    Based on the background identification and research overview of low-carbon rural tourism, this paper clarified the logical relationship between the “productive-living-ecological synchronization” and low-carbon rural tourism, and took this as the starting point to sort out the main problems existing in the process of low-carbon rural tourism in Shaanxi province, and then put forward the low-carbon path. In terms of production, we should pay attention to low-carbon reform in the supply side of rural tourism industry, and promote the green development of rural tourism; In terms of living, we need to improve the intensive level and formulate low-carbon consumption incentive measures for rural tourism; In terms of ecology, we should enhance the natural carbon sink capacity and create a green landscape pattern. In order to provide references for the low-carbon development of rural tourism in Shaanxi province and even China.
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    Spatial and temporal evolution characteristics of the coupling and coordination among water,energy and food in Anhui province
    JIAO Yuan-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 184-191.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.037
    Abstract （417）      PDF （3334KB）（280）       Save
    Taking Anhui province as the research object,the coupling coordination model was constructed to measure the development level and coupling coordination degree of water-energy-food（W-E-F） nexus from 2006 to 2018. In the meantime the spatial and temporal characteristics of the nexus was analyzed. The results show that from 2006 to 2018, the comprehensive evaluation index of the W-E-F system in Anhui province has presented an overall upward trend, and the coupling coordination degree has risen from 0.490 9 to 0.870 2, reaching a good coordination level as a whole. However, the development characteristics of the various subsystems are different. Water resources subsystem has large fluctuations, energy subsystem develops relatively slowly, and food subsystem develops rapidly, and the overall development and utilization level is higher than that of water resources and energy. There are also significant spatial variation in the coordination level of the W-E-F system. Hefei, Huainan and Xuancheng have a relatively high level of coordination, and the weak areas of each subsystem are mainly located in Lu'an, Ma'anshan, Huaibei and other places. Most regions are facing the problem of increasing imbalance in the internal development of W-E-F system. Among them, the contradiction between food and water resources is the most prominent. It is necessary to promulgate water-saving policies, improve water-saving irrigation efficiency, and reduce the impact on water resources caused by food production.
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    Research on the radiation effect of farmers' professional cooperatives in China from the perspective of symbiosis
    ZHANG Xiong, PANG Li-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 192-195.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.038
    Abstract （423）      PDF （1498KB）（194）       Save
    In order to further explore the significant role of symbiotic radiation effect of farmers' professional cooperatives, this paper studied the radiation effect of farmers' professional cooperatives in China from the perspective of symbiotic theory. The results show that there are some practical problems in the symbiotic radiation effect of Chinese farmers' professional cooperatives, such as the dissociation and limitation of dynamic effect, the non fluency and non correlation of derivative effect, and the lag and singleness of superposition effect. In view of the above problems, it puts forward some countermeasures, such as the combination of element integration and resource sharing, the matching of information platform and capital platform, the matching of cooperation and sharing and industrial integration, in order to provide reference for the follow-up research.
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    Empirical study on land consolidation promoting the coordinated development of regional economy in Zunyi city
    ZHOU Chun-fang, LU Xiao-long, YUAN Feng-gang, YANG Zheng-feng, LONG Xi, SHI Wen-tao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 196-199.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.039
    Abstract （415）      PDF （1619KB）（204）       Save
    Through land consolidation, it can optimize the regional land use structure, adjust the industrial layout, promote regional economy growth, narrow the regional gap, and realize the coordinated development of regional economy. Based on this, this study constructed the index system of regional economy coordinated development, measured the economy coordinated development of Zunyi city and its four major regions, and took the land consolidation practice of Zunyi city as an example, constructed the relevant model of land consolidation and regional economy coordination degree of Zunyi city, deeply analyzed the relationship between them, so as to provide reference for relevant departments.
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    Study on green production behavior of farmers and its influencing factors in Yangtze River Economic Belt：Based on improved TPB framework
    LEI Jia-le, WU Xue-lian, LI Wan-hong, LI Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 200-207.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.040
    Abstract （382）      PDF （1597KB）（334）       Save
    Based on the improved TPB framework, this study explored the green production behavior of farmers and its influencing factors in the Yangtze River Economic Belt before, during and after production, so as to provide policy reference for stimulating farmers'green production. By using the method of questionnaire survey and Logistic model, this study analyzed the green production behavior of farmers in the Yangtze River Economic Belt. The results showed that mandatory norms and policy incentives had a positive impact on farmers' prenatal establishment of field technical archives management, while demonstrative norms, network, age and years of farming had a negative impact; demonstrative norms, attitude, network and gender had positive effects on farmers' taking measures to control diseases and pests, while mandatory norms and agricultural income had negative effects; behavioral ability and years of farming had a positive impact on farmers' postpartum behavior, while demonstrative norms and age had a negative impact. Therefore, strengthening publicity and guidance, training new farmers, improving agricultural technology, establishing and perfecting laws and incentive policies were the key points to promote farmers' green production.
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    Research on the dilemma of multi-agent cooperation in rural “toilet revolution” from the perspective of network governance
    LI Xiao-yu, ZHANG Zhe-cong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 208-212.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.041
    Abstract （381）      PDF （1511KB）（201）       Save
    As a basic livelihood project, the rural “toilet revolution” project relied on the collaborative promotion of the government, village level autonomous organizations, social organizations, enterprises, villagers and the media. In practice, due to the lack of cooperative regulations, the low degree of information sharing, the general lack of trust, the limitation of behavior logic and the conflict of opposites, the project progress was hindered. Based on the perspective of network governance, this research put forward countermeasures from five aspects：Establishing the necessary rules of conduct, realizing the effective sharing of information, establishing the trust incentive mechanism, adopting the action strategy of cooperation and reciprocity, and promoting the cooperation of multi-agent.
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    Research on rural digital inclusive financial supervision under the strategy of rural revitalization
    XING Hong-fei, LYU Han-dong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (13): 213-217.   DOI: 10.14088/j.cnki.issn0439-8114.2021.13.042
    Abstract （467）      PDF （1637KB）（251）       Save
    In order to deal with the problems and risks in the development of rural digital inclusive finance, and better play its function in rural revitalization, this paper investigated the current practice of rural digital inclusive financial supervision in China. The results show that there are some problems in the current rural digital inclusive financial supervision, such as imperfect regulatory laws and regulations, disconnection between regulatory model and practice, backward regulatory means, imperfect credit reporting system, lack of market access and exit mechanism. It is suggested that the government should improve the supervision system from the aspects of supervision laws and regulations, supervision mode, supervision technology, credit reporting system, market access and exit mechanism, so as to promote the smooth operation of rural digital inclusive financial industry and help rural revitalization.
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    Research progress of procyanidins
    LIU Wen-jun, LI Jin-Zhou, CHEN Zi-jun, HUANG Zhou-yan, CHEN Yong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 5-9.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.001
    Abstract （747）      PDF （1567KB）（1259）       Save
    Procyanidins has been widely used in medicine, health care products, cosmetics and other fields, this article mainly summarized the extraction technology of procyanidin, separation and purification technology, the content determination method and the progress of pharmacological activities, etc, to lay a good foundation for the related study of procyanidins.
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    Progress in research on influenza A virus universal vaccines based on HA
    MENG Wei, ZHANG Lei, HUANG Jin-hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 10-16.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.002
    Abstract （448）      PDF （2082KB）（323）       Save
    Influenza viruses pose a serious threat to human and animal health due to the strong infectivity, wide spread, short incubation period, and high incidence. The current seasonal vaccine can only prevent the infection of influenza viruses of the same subtype, and are unable to provide effective protection for different subtypes of influenza viruses. Therefore, the development of a universal influenza vaccine that can provide broadly protection has become the focus of current influenza vaccine research. This article will briefly introduce the various preparation methods of the current universal influenza vaccine and review the current research progress of the hemagglutinin-based （HA-based） universal vaccine.
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    Study on the effect of mulch material on the yield and quality of continuous cropping pattern of potato and cotton
    LIU Wei-sheng, WU Qi, WEI Li-fei, ZENG Xiao-lin, WU Zhen-jiang, SHI Juan-juan, WEI Hai-xia, CAO Rui-qun, XIONG Xin-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 17-23.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.003
    Abstract （378）      PDF （1588KB）（226）       Save
    Four different mulch material combinations including black plastic film, black plastic film+straw, white plastic film and white plastic film+straw were used in the potato-cotton continuous cropping mode for experimental comparison. By analyzing the effects of four different mulch material combinations on the agronomic traits, commercial traits and yield traits of potato and cotton were analyzed, and the economic, ecological and social benefits of the potato+cotton continuous cropping mode with different mulch material combinations were comprehensively analyzed. The results showed that the combination of black mulch+straw had obvious advantages in improving the growth environment of potato, increasing the yield and quality of potato, improving the physical and chemical indexes of cotton planting soil, improving the fiber quality of cotton and increasing the yield of cotton.
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    Study on comprehensive evaluation of summer peanut based on principal component analysis and cluster analysis
    GUO Kai, JIANG Xiang-guo, LI Hong-mei, CAI Jin-lan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 24-28.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.004
    Abstract （442）      PDF （1664KB）（244）       Save
    In order to objectively and accurately evaluate the adaptability of 11 peanut varieties planted in summer in northern Hubei, the agronomic traits, growth period, yield traits and quality traits were investigated, the adaptability was evaluated by principal component analysis. The results showed that, accumulated variance contribution of the top 6 factors reached 90.064%, based on this, an adaptive comprehensive evaluation model was constructed. The suitable summer planting in northern Hubei province with high comprehensive score was selected, including Zhonghua 16, Tianfu 22, Ningtai 9922, Zhonghua 215 and Xianghua 645. The cluster analysis of 11 varieties was divided into 3 groups,there were great differences in agronomic traits between groups, and the first group was basically consistent with the higher score of principal component analysis. Comprehensive results of principal component analysis and cluster analysis can make a more accurate evaluation. It is conducive to the variety introduction and selection.
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    Discussion on the correction coefficient threshold of volumetric water content in Hubei automatic soil moisture station
    LIU Yin-xiu, CHEN Ning, LIU Ying, KUANG Xiao-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 29-36.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.005
    Abstract （410）      PDF （4317KB）（342）       Save
    Using some soil moisture and rainfall data in Jianli county and Fang county, the unreasonable values of the correction coefficients of the two stations were diagnosed and analyzed. According to certain rules, the initial value range of the threshold value of the two coefficients A0 and A1 were determined. According to the observation data of artificial soil moisture in Hubei province over the years, the “volatility of volumetric moisture content” at different levels was calculated. Interpolate the CLDAS soil volumetric water content hourly simulation grid data for one and a half years to 46 automatic soil moisture sites and 8 levels in Hubei province. Calculate the correlation coefficient r2 between the instrument measured value and the CLDAS of all the observation stations （layers） hourly volumetric water content and the correlation coefficient r1 between the instrument measured value and the final value. Picking the data with r1>0.8, r2>0.6 and the final value of the volumetric water content within the “volatility range of volumetric water content” as a basis to obtain the empirical value ranges of the two coefficient thresholds in Hubei province. The negative value of A1 violates the working principle of the DZN series of soil moisture stations, and A1 cannot be too small. In general, the initial value range of the two coefficient thresholds were A0 （-36, 36） and A1 （0.1, 10）. The empirical value range of the two coefficient thresholds in Hubei province was reduced to A0 （-20, 35） and A1 （0.25, 1.57）. In the field calibration method, ensuring the true reliability of the soil bulk density value as a constant can reduce the error in calculating the correction coefficients A0 and A1.
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    Bacterial diversity effected by intercropping peach trees in pomegranate wilt disease soil
    ZHOU Yin-li, XIONG Lang, CHEN Yong-ling, PENG Meng-lin, YANG Wei, HU Xian-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 37-40.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.006
    Abstract （397）      PDF （2553KB）（250）       Save
    High-throughput sequencing was used to study the rhizosphere soil bacteria diversity of healthy pomegranate rhizosphere soil（MZ）, wilt disease pomegranate rhizosphere soil （MZD） and wilt disease pomegranate soil intercropping peach trees（MZP） in Mengzi county of Yunnan province, and the bacteria diversity differences of three kinds rhizosphere soil were analyzed to explore the effect of intercropping peach trees on soil bacterial diversity of pomegranate wilt. The results showed that the OTUs numbers obtained from MZD、MZ、MZP were 1 727,1 662,1 510, respectively, PCA analysis showed that the bacterial community composition of rhizosphere soil MZP was significantly different from that of rhizosphere soil samples MZD. Intercropping peach trees can significantly change the bacteria composition of wilt disease pomegranate rhizosphere soil. At genus level, 16 bacteria genus such as Enterococcus, Cellulosimicrobium, Actinomycetospora, Rhodoplanesa et al were significant difference between pomegranate wilt disease soil intercropping peach trees and pomegranate wilt disease soil rhizosphere. Intercropping peach trees can change the rhizosphere bacterial diversity and community composition of wilt pomegranate, thus improving the soil microecological balance, it had positive effect on perennial pomegranate orchard to repair continuous cropping obstacle.
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    Effect of mixed application of biochar and compound fertilizer in different amounts on quality and economic benefits of flue-cured tobacco
    XIA Rong-shuai, CAI Xian-jie, XIA Xian-ren, LI Xian-cai, MA Ai-guo, LYU Shi-bao, WEI Qi-li, WANG Rui-bao, PAN Yi-hong, YAN Ding
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 41-45.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.007
    Abstract （542）      PDF （1533KB）（249）       Save
    Field experiments were conducted to study the effects of four different biochar application rates and conventional fertilization controls on the quality and economic benefits of flue-cured tobacco leaves in Xuanwei tobacco growing area. The results showed that the additional application of biochar can improve the physical properties, appearance quality, chemical composition coordination and sensory evaluation quality of tobacco leaves to varying degrees. Among them, T2（application rate of 900 kg/hm2） had a better effect on physical properties and appearance quality. Compared with CK （conventional fertilization）, it increased by 4.64% and 2.59%, respectively. T3（application rate of 1 350 kg/hm2） had the best improvement in chemical composition coordination and sensory evaluation quality, increasing by 20.19% and 5.26%, respectively, and the overall quality was the highest, 7.62% higher than CK. T3 had the best economic benefit, and the output value reached 59 995.80 yuan per hectare, and the grade structure was the best. In summary, the best biochar application rate was 1 350 kg/hm2, the comprehensive quality of tobacco leaves was the best, and the economic benefits was the highest in Xuanwei city tobacco growing area.
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    Study on the inhibition and control effect of compound amendment on cadmium pollution in rice and soil
    LI Xiao-peng, ZHOU Jia-cheng, CHEN Nan, MA Shi-zhu, FENG Dong-yi, LIN Jun-jie, ZHANG Yu-shan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 46-50.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.008
    Abstract （413）      PDF （1565KB）（296）       Save
    Three local rice varieties, Maba Younian, Jinnong Simiao and Meixiangzhan 2, were selected as the research objects in Zhongshan city. Experiments were carried out in the field to study the resistance and control effects of compound amendments on cadmium pollution in rice and soil. The results showed that the compound amendments could significantly reduce the cadmium content in rice plants, and the compound amendments could significantly passivate the soil available cadmium; The cadmium content of rice was different between varieties and parts of rice, and Maba Younian had stronger passivation effect on available cadmium in rhizosphere soil than Meixiangzhan 2, which led to the lower cadmium content in all parts of Maba Younian than Meixiangzhan 2. The distribution of Cd content in different parts of rice plant was as follows： Root > stem leaf > brown rice > rice husk. When the local use amount of compound amendment was 900 kg/hm2, the cadmium content in brown rice of rice could be reduced to the limit of the national standard 0.2 mg/kg.
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    Stress effect of urban expansion on flood risk and its scenario simulation
    WU Ming-yu, WANG Zhong, ZHANG Yun-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 51-56.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.009
    Abstract （455）      PDF （2942KB）（261）       Save
    Taking Chongqing city as an example, a comprehensive evaluation index system of urban flood disaster risk is established, and the system dynamics model was used to simulate the risk and identify the stress effect of urban expansion. The results show that the risk of flood disaster in Chongqing city presents a nonlinear fluctuation trend with a five-year cycle. During the cycle, the risk rapidly rises to the peak and then decreases year by year. Urban expansion has no significant effect on the risk of flood disaster in Chongqing city, but the rapid expansion increases the vulnerability of urban disaster. The disaster prevention capacity is more sensitive to the response of urban expansion, and can neutralize the stress effect of urban expansion on flood risk. It is suggested that cities should find a balance between expanding size and ensuring safety, and achieve smart, regulated expansion. It should strengthen the construction of disaster prevention infrastructure for new land use, and improve the drainage and emergency planning in the peripheral areas of the city.
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    Analysis on the characteristics of spring and summer meteorological drought in Mulei county of Xinjiang in recent 51 years
    HOYHAZI Erkejan, RUZI Apar, LIU Hong-ying, HUANG Jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 57-63.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.010
    Abstract （462）      PDF （7124KB）（259）       Save
    Based on the observation data of monthly temperature and precipitation in Mulei county, Xinjiang province during 1970—2020, trend analysis, M-K mutation test, wavelet power spectrum analysis and correlation analysis were used to study the variation characteristics and influencing factors of the relative humidity index in spring and summer in Mulei county. The results showed that the average temperature and evapotranspiration in spring and summer in Mulei county had a significant increasing trend in the past 51 years, while the precipitation and wetness index had a weak increasing trend, but the increasing trend was not obvious, which indicated that the climate trend of Mulei county in spring and summer had changed to warm and dry. The frequency of light drought in spring was higher than that in summer, and the frequency of moderate drought and severe drought in summer was higher than that in spring. The mean temperature, precipitation and relative humidity index of spring and summer all changed abruptly. According to the wavelet power spectrum test, most of the temperature, precipitation and relative humidity index in spring and summer had the scale variation period of 2~4 years. The periodic signal energy in time scales above 4 years and below 2 years was weak, and the significant variation period was mainly concentrated in the periodic oscillation around 3 years. The analysis of meteorological influencing factors of relative humidity index showed that the change of relative humidity index in spring and summer in Mulei county was caused by the comprehensive action of several meteorological factors, but precipitation, relative humidity and air pressure were the main meteorological factors that lead to the change of relative humidity index in spring and summer in the study area.
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    Characteristics of meteorological drought and its impact on agriculture production in Changji prefecture
    HOYHAZI Erkejan, RUZI Apar, ZHOU Guo-hong, HUANG Jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 64-70.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.011
    Abstract （443）      PDF （4660KB）（330）       Save
    Based on the precipitation and drought data of 1961—2020 from 10 meteorological stations in Changji prefecture, the spatial and temporal variation characteristics of precipitation in Changji prefecture were analyzed, and the monthly, seasonal and annual precipitation anomaly percentage of each meteorological station was calculated. The drought events were selected according to the drought index of precipitation anomaly percentage, and the spatial and temporal distribution of meteorological drought at different time scales was analyzed in detail. The actual situation of historical drought and the evaluation results of precipitation anomaly percentage index were evaluated for practicability. The change trend of crop disaster area year by year was analyzed, and the influence of meteorological drought on agricultural production was studied. The results showed that the precipitation in Changji prefecture increased in recent 60 years, and the annual distribution was uneven, with the maximum precipitation in summer and the minimum precipitation in winter. It can be seen from the chronology that the precipitation was relatively small and unstable before the 1980s, and it began to increase year by year in the early 1980s. In 1983, there was a sudden increase, and the increase was obvious in 1998, and the increase was gentle since the 21st century. The frequency of meteorological drought in the past 60 years is more in central China than in western and eastern China. The monthly frequency of meteorological drought fluctuated, the most in January, the second in July, and the least in November. The main meteorological drought is autumn drought, winter drought is the second, mainly light drought. The annual frequency of meteorological drought events decreased gradually. Under the influence of meteorological drought in the past 60 years, the crop disaster area in Fukang city, Jimusar, Qitai and Mulei county was larger and the disaster degree was serious, followed by Caijiahu and Changji city, and Manas and Hutubi county were smaller and the disaster degree was light. The crop disaster area caused by meteorological drought disaster showed a decreasing trend. The drought years evaluated by the percentage of precipitation anomaly were 21 years in agreement with the historical drought years, and the coincidence rate was 80%.
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    Effects of root cutting and leaf application of potassium on organic potassium index and content of neutral aromatic substances in tobacco leaves
    WANG Zheng, XU Tian-yang, HUANG Chong-jun, MENG Gang, GUO Zhi-yong, WANG Jia-chun, AO Jin-cheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 71-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.012
    Abstract （425）      PDF （1553KB）（246）       Save
    Field experiments were carried out to study the effects of different agronomic measures on the dynamic changes of potassium content and organic potassium index and the content of neutral aromatic substances in primary flue-cured tobacco leaves after topping treatment, setting blank control（CK）, root cutting（C）, spraying of potassium fertilizer（K）, root cutting and spraying of potassium fertilizer（C+K）. The results showed that, compared with the CK, C, K and C+K treatments slowed down the loss of potassium and the decrease of organic potassium index and the potassium and organic potassium index of C and C + K treatments decreased first and then increased. The content of neutral aromatic substances in tobacco leaves increased by 29.2%, 18.3% and 4.5%, and C treatment had the best effect, followed by K treatment. The results showed that root cutting could effectively slow down the loss of potassium in tobacco leaves and promote the accumulation of potassium in the later stage, and increase the content of neutral aromatic substances in tobacco leaves. Based on the requirements of saving labor and reducing cost, leaf spraying of potassium fertilizer was a feasible technology for potassium extraction and aroma increase in tobacco leaves.
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    Study on cuttage technique of Perilla frutescens lateral branch
    GE Chang-jun, YAN Liang, XU Li-rong, JIANG Yan-yan, DAI Jun-fen, ZHANG Su-jie, CHEN Zhan-peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 76-78.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.013
    Abstract （653）      PDF （1536KB）（231）       Save
    Through the treatment of perilla（Perilla frutescens） lateral branches and the design of the concentration of rooting powder, the effects of different treatments on perilla lateralis cuttage were studied and the optimal combination was determined. The results showed that there were differences in survival rate, rooting number and rooting length among different cuttage treatments. In treatment 6, a pair of leaves of lateral branches were reserved, and the survival rate was the highest when the concentration of rooting powder was 500 mg/L, reaching 83.3%, the number and length of rooting were significantly higher than other treatments.
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    Effects of shading and fertilization on physiological characteristics and nitrogen accumulation of Sterculia nobilis Smith seedlings
    PAN Lu-rong, ZHOU Yuan-huizi, WANG Yi-jin, SU Yuan-yu, WANG Ling-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 79-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.014
    Abstract （365）      PDF （3419KB）（151）       Save
    Taking half year old Sterculia nobilis Smith seedlings as the research object, the effects of shading, fertilization and their interaction on physiological characteristics and nitrogen accumulation of Sterculia nobilis Smith seedlings were studied by two factor pot experiment with four light levels （100.0%, 41.3%, 14.3%, 3.6% natural light） and four fertilization levels （0, 2 000, 4 000, 6 000 mg/plant）. The results showed that the effects of indicators reached extremely significant levels in June, September and December, the activities of SOD, CAT and POD and N concentration in leaves were the highest in September and the lowest in March. With the gradual decrease of light intensity, the content of MDA, the activity of SOD and POD showed the trend of decreasing first and then increasing. Under the same light level, with the increase of nitrogen, the content of MDA reached the maximum at N0 nitrogen level, and the three enzyme activities under L1 light treatment were lower than those under other light conditions. Under the same nitrogen level, the content of MDA reached the maximum under L0 light condition, and the three enzyme activities were lower under N3 nitrogen level compared with other nitrogen levels. There was significant interaction between different light and nitrogen levels, according to the comprehensive evaluation of the membership function of each index of Sterculia nobilis Smith seedlings, it is concluded that the largest subordinate value of Sterculia nobilis Smith seedlings is L1N3 treatment. The research indicated that strong light, insufficient light and lack of nitrogen fertilizer were not conducive to the growth of Sterculia nobilis Smith seedlings, and oderate shading （41.3% natural light） and increasing nitrogen application （6 000 mg/plant） could effectively promote the growth and development of Sterculia nobilis Smith seedlings.
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    Comprehensive evaluation of sightseeing melon and solanaceous vegetables based on gray-correlation analysis method
    CHI Fu-ling, LI Feng, RUAN Hui-ming, HE Yu-guang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 85-89.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.015
    Abstract （360）      PDF （1551KB）（191）       Save
    In order to enrich the sightseeing vegetables resources in Ningde city, the experimental introduction and cultivation of 32 varieties of sightseeing melon and solanaceous vegetables were studied. The growth and the sightseeing value of 32 varieties of sightseeing melon and solanaceous vegetables were evaluated by means of gray-correlation analysis method. The results showed that among the 32 varieties of sightseeing melon and solanaceous vegetables, the sightseeing value of 5 varieties of sightseeing melon and solanaceous vegetables were higher performance with the correlation degrees more than 0.700, such as Laoshugua, Xianglugua, Jinzaozimeiyuanqie;the sightseeing value of 16 varieties of sightseeing melon and solanaceous vegetables were good performance with the correlation degrees between 0.600 and 0.700, such as Huangbeibeinangua, Huaxiuqiufanqie, Jubaotianjiao;the sightseeing value of 11 varieties of sightseeing melon and solanaceous vegetables were general performance with the correlation degrees between 0.500 and 0.600, such as Baibeibeinangua, Meiguoxiaohulu, Jidanqie. According to the comprehensive evaluation result, 21 varieties of sightseeing melon and solanaceous vegetables were suitable to be popularized and planted in Ningde city.
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    Study on spatial pattern of forest ecological function：A case study in Guixi city,Jiangxi province
    MAO Xu-peng, RAO Gao-ping, LIU Xing-jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 90-94.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.016
    Abstract （380）      PDF （3136KB）（252）       Save
    BP Neural Network Model of forest ecological function in sublot scale was built to analyze the spatial pattern of forest ecological function,a Forest Ecological Function Model in regional scale was built to analyze the overall forest ecological function of the study area and a spatial equilibrium index model of forest ecological function was built to analyze the equilibrium distribution of forest ecological function in the study area. The results show that the BP neural network structure was “8-5-1”, and the network performance could meet the research requirements. The forest ecological function of the study area was divided into three grades of good, medium and poor, which respectively occupied 3.6%, 88.4% and 8.0% of the total forest land area. The score of forest ecological function in the regional scale was 0.609 7, and the grade of overall forest ecological function in study area was poor. The spatial equilibrium index of forest ecological function in the study area was 0.863 8, and the spatial distribution of forest ecological function was relatively balanced. The sublots with middle grade forest ecological function accounted for a large portion in study area, which explaining that the protection of national ecological forest had achieved remarkable results. Forest ecological functions were more spatially distributed, but overall forest ecological functions are poor.
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    Comparative analysis on the benefits of different culture modes of Procambarus clarkii in Qianjiang city
    ZHANG Yu-mu, RUAN Guo-liang, WANG Shu-juan, FANG Liu, WANG Qian, ZHANG Han, YE Dan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 95-99.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.017
    Abstract （382）      PDF （1551KB）（217）       Save
    In order to better understand the situation of crayfish culture in Qianjiang city and provide reference for crayfish aquaculture in various places, the economic benefits of different crayfish culture modes in Qianjiang city were investigated and compared. The results showed that the benefit of crayfish-lotus coculture mode was the lowest, the benefit of crayfish-rice coculture mode was better, and the benefit of crayfish pond-monoculture mode was the best. The efficiency of crayfish pond-monoculture mode was twice as high as that of crayfish-lotus coculture mode. As one of integrated planting and breeding modes, the crayfish-rice coculture mode is still worthy of sustainable development, and through further optimization of comprehensive technology, its benefits still have promotion space of economic benefits in crayfish culture.
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    Preliminary study on the biology of Chinese bahaba （Bahaba flavolabiata）
    LOK Peng-kin, LU Chang-sheng, HUANG Jian-qiang, ZHOU Yong-dong, LIU Wen-yu, CAI Yan-zhi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 100-102.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.018
    Abstract （525）      PDF （3176KB）（270）       Save
    The Chinese bahaba （Bahaba flavolabiata） is a unique offshore fish in China. Due to environmental factors, its resources have been severely reduced. In order to protect the Chinese bahaba, a protection center has been established in the Pearl River Estuary for artificial domestication and breeding under pond conditions. In this paper, the morphological characteristics of Chinese bahaba, the growth and development of artificial domestication in ponds and the adaptability of ecological environment are studied. The results showed that the body was in the shape of a long spindle, the tail stalk was slender, and the sides were flat. The body was brownish-gray with orange-yellow on the back and grayish-white on the ventral side. The body length is 3.42 times the body height, is 3.3 times the head length, It is 4.15 times the length of the caudal stalk; the tail stalk length is 3.31 times the tail stalk height; the head length is 5.69 times the eye diameter, ls 7.09 times the distance between eyes, Is 3.78 times the length of the kiss, It is 2.87 times the length of the slit. The temperature of the living water is 6~33 ℃, and the temperature of the food water is 18~33 ℃. The annual weight gain is 1 500~3 500 g, the largest individual can reach 90 kg. Carnivorous fish that feed on large crustaceans such as fish and shrimps and crabs, while juvenile fish feed on shrimp. The mature age of broodstock is 6 years old males and 8 tears old for females;the absolute amount of females carrying eggs is 150~170 per gram of body weight, the diameter of the egg is 1.35~1.49 mm, and the eggs are light yellow and floating. The spawning water temperature is 18~26 ℃.
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    Effect of different tenderness of dark brick tea on improving gastrointestinal function in mice
    SU Dan, TANG Fei, ZHANG Shan-ming, CHEN Yu-qiong, NI De-jiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 103-108.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.019
    Abstract （410）      PDF （1569KB）（220）       Save
    The purpose of this experiment was to study the effects of different tenderness of dark brick tea on gastric emptying, intestinal propulsion and intestinal microflora flora in Kunming purebred white mice by analyzing the correlation of physicochemical components of dark brick tea on indicators of intestinal function in mice. Results showed that the contents of EGC, CG and malic acid increase with the growth of tea leaves, while the contents of free amino acids, total tea polyphenols, caffeine, theaflavins, lactic acid, citric acid, fumaric acid and gallic acid decrease among dark brick tea with different tenderness. In the experiment of intragastric administration of dark brick tea to mice for 15 days, dark brick tea made from tea leaves with different tenderness not only can significantly promote gastric emptying and intestinal peristalsis, but also improve intestinal microbial environment, and promote bifidobacteria and significantly inhibit enterobacteria remarkably. The effect of dark brick tea on gastric emptying, small intestinal propulsion, and intestinal microflora are consistently with the same order： single bud, a bud and two leaves, and a bud and four leaves. The improvement of raw material tenderness will not reduce the intestinal function of dark brick tea.
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    Study on the spatial and temporal expansion characteristics of oasis city based on GIS：Taking Yining city,Xinjiang as an example
    ZHAO He-miao, ALIMUJIANG·Kasimu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 109-116.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.020
    Abstract （356）      PDF （4556KB）（329）       Save
    Taking Yining city, Xinjiang province as an example, based on Maximum likelihood classifie（MLC） method with remote sensing images of 2000,2005,2010,2015 and 2018, the authors classified the land of Yining and extracted the urban proper to analyze the urban construction land expansion and spatial distribution in the past 19 years. Urban expansion indices, which included expansion speed index（ESI）,expansion intensity index（EII）, expansion degree index（EDI） and standard deviational ellipse（SDE）, were used to quantitatively analyze temporal variations of construction expansion. The following results were obtained：①The construction land area of Yining city increased by 80.03 km2 and it was the 2.7 times of the initial urban from 2000 to 2018, According to the analysis of SDE, the construction land extended to the northwest and the urbanization showed a rapid expansion trend from 2000 to 2005. ②During the period of 2000—2018, the construction land expansion of Yining city was mainly realized through occupying large areas of cultivated. In the growth of the construction of the city area, city expansion rate increase year by year, city expansion strongly expands and then the expansion tends to slow down. ③The urban expansion of Yining city was affected by both natural and human factors. Natural factors affected the space scope of urban expansion, and human factors was the direct driving force for construction land changa in city expansion.
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    Spatial and temporal analysis of factors affecting farmland utilization efficiency in Anhui province based on GTWR model
    LIU Zi-xuan, LIANG Teng-fei, LIANG Dong-dong, WU Xu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 117-124.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.021
    Abstract （542）      PDF （6538KB）（340）       Save
    As the basis of food production, cultivated land was the root of human survival and development, and its utilization efficiency has a profound impact on the development and progress of human civilization. This paper taked 16 prefecture-level cities in anhui province as the research area, Using ESDA model to measure the utilization efficiency of cultivated land in various cities, and analyzed the spatial-temporal variation characteristics of the cultivated land utilization efficiency from both global and local perspectives by ESDA model. Finally, the main influencing factors of the cultivated land utilization efficiency in anhui province were discussed from two dimensions of time and space by GTWR model. The results showed that：①the average comprehensive utilization efficiency of cultivated land in 16 cities in anhui province from 2013 to 2017 was greater than 0.9, indicating that the utilization efficiency of cultivated land in anhui province was at a high level and fluctuated with time; ②the H-H cluster of cultivated land utilization efficiency gradually migrated from hefei city to the northwest, and L-L cluster was distributed in the southwest of anhui province, mainly in mountainous and hilly areas; ③per capita GDP, irrigation index, multiple cropping index, agricultural labor per capita cultivated land area and other factors significantly affected the utilization efficiency of cultivated land in anhui province; ④there was a significant difference in the spatial variation of the influencing factors of cultivated land utilization efficiency.
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    Design of automatic receiving container machine for citrus reticulata
    WU Jia-yao, CHEN Hong, ZHANG Yue, LIU Xin, ZHANG Duo-ming, CHEN Hong-yuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 125-128.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.022
    Abstract （415）      PDF （3282KB）（263）       Save
    In order to solve the problems of low working efficiency, high labor intensity caused by few specialized harvesting machines and high damage rate in the process of collecting citrus fruits, a new type of automatic collecting and loading machine suitable for modern standard short-cut. Dense-planting orchard was designed by using rotating uniform separator and box-dropping packing technology.results showed that the machine was mainly composed of two-side conveyor, rotating and even separator, box-loading and lifting device, box-changing device and caterpillar mobile picking platform. Through up-down follow and orientation design, the up-down and left-right swing adjustment of the conveyor can be achieved to meet the requirements of different positions for fruit setting and ensure continuous collection. Rotating even separator was used to drive wide-skinned citrus to roll and drop fruits one by one with equal probability of holes to achieve even packing. Kinematic analysis of the lifting device was carried out by Adams software, with the fruit box lifting accurately, to prevent dropping or squeezing damage. when the speed of the two-side conveyor was 0.15 m/s, the speed of the rotating uniform separator was 20 r/min, the height of the buffer track was 10 cm from the fruit surface, and the number of the distribution holes of the separating disc was 6, the average packing height of the wide-skinned citrus auto-collecting and the damage rate was 6.1%, and the packing efficiency was 48 /min. Continuous collection, even packing and automatic box changing of fruits were achieved.
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    Analysis on the mechanism of plough tools reducing resistance and consumption for high-power tractors
    ZHANG Lu-yun, MENG Xiang-jin, ZHENG Xuan, YANG Huai-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 129-132.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.023
    Abstract （326）      PDF （1845KB）（266）       Save
    Tillage is the most energy consuming link in agricultural production, reducing energy consumption and production input cost is the research focus in the field of agricultural machinery. The development status of share plough at home and abroad was studied and analyzed, put forward the method of reducing ploughing resistance from plow structure and working mode. Reducing energy consumption, tillage resistance and carbon emissions, promoting the green agriculture sustainable development.
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    Optimal analysis of enclosure structure of solar greenhouse in Yantai city
    WU Xing-guo, YUAN Xing-jian, XU Hao, YIN Bao-quan, MA Yun-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 133-137.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.024
    Abstract （356）      PDF （2269KB）（264）       Save
    The model parameters of common solar greenhouse in Yantai was designed in order to manifest that indoor thermal environment of greenhouses performs better for certain parameters in local climate condition through analyzing simulated optimization of different construction of wall and rear slope of greenhouses by analysis software. The results suggested that the optimal parameters of wall should be cement bricks of 370 mm, polystyrene foam plastics of 70 mm and aerated concrete blocks of 120 mm and the rear slope should be plastic film of 100 mm, extruded board of 30 mm and cement mortar as its protective layer.
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    The environmental efficiency evaluation of hydropower energy in China’s three river basins under the background of carbon constraints
    SONG Rui-jie, TIAN Ze, YANG Jing-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 138-143.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.025
    Abstract （303）      PDF （3392KB）（148）       Save
    Based on the hydropower related panel data of 20 provinces and cities in the Yangtze River, Pearl River and Yellow River basin, an evaluation index system of hydropower energy environmental efficiency was established. The super-efficiency SBM model was used to calculate the energy efficiency of hydropower from the perspectives of basin and province. The results showed that 2016 was the inflection point of the new increment of hydropower construction investment from up to down, the hydropower efficiency of the Yangtze River basin was the best, the Pearl River basin was the second, and the Yellow River basin was the worse. There were spatial and temporal differences among watersheds and the upper, middle and lower reaches of the same watershed, the hydropower energy potential in the southwest region and the upper reaches of the Yellow River was huge. Some suggestions were put forward to promote the efficient green development of hydropower in the whole basin of China.
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    Implementation effect evaluation and improvement suggestions of grassland eco-compensation policies：Based on Yili River Valley
    HENGBATE ASAINALI, HAILIQIEMU SIYITI, AYITUERXUN SHAMUXI
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 144-147.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.026
    Abstract （367）      PDF （2331KB）（144）       Save
    In order to measure the effect of the grassland ecological compensation policy in the Yili River Valley, an evaluation index system was constructed, and the AHP-Fuzzy comprehensive evaluation method was used to evaluate the ecological, economic and social benefits. The results showed that the evaluation indexes of ecological and social benefits of the Yili River Valley were 7.54 and 7.34 respectively, both of which were in the second level and the effect was good; the economic benefit evaluation index is 5.94, which is in the third level, and the effect was average; the comprehensive benefit evaluation index it is 7.01, which was in the second level, and the effect was good. The problems in the process of policy implementation was analyzed, and some policy recommendations were put forward, including raising the compensation standard, adjusting the compensation payment time, strengthening policy supervision, improving the quality of herders,and speeding up the transformation of herders’ production methods.
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    Study on the performance and influencing factors of agricultural science and technology service in Shandong province
    ZHANG Xue-ping, LI Jing-suo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 148-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.027
    Abstract （346）      PDF （1539KB）（159）       Save
    The super efficiency DEA-Tobit model was used to study the performance and influencing factors of agricultural science and technology service in Shandong province. The results showed that the overall performance of agricultural science and technology service in Shandong province was effective, the service level was not high and still needed to be further improved,and the per capita GDP had a significant negative impact on the performance of agricultural science and technology services,while the effective irrigation area, crop disaster area and rural per capita education level had a significant positive effect. Based on the research results, countermeasures and suggestions were put forward, such as increasing the investment in agricultural industry, strengthening the construction of rural agricultural infrastructure, expanding the scope of agricultural science and technology services, strengthening the publicity and education of agricultural science and technology.
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    The contribution of ‘street-stall economy’ to national economy in the process of rural revitalization
    HU Ming-han
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 152-155.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.028
    Abstract （496）      PDF （1508KB）（335）       Save
    The connotation, type and function of street-stall economy were explained, the development characteristic and value embodiment of stree-stall economy in the national economy under the background of rural revitalization were introduced. The countermeasures to promote the development of national economy were put forward, which provide detailed guidance for the government to implement the rural revitalization strategy, and provide theoretical reference for scholars to study the national economy.
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    Construction of the decision-making model for the transformation and upgrading of individual businesses based on real options：Taking landscaping industry as an example
    WANG Chong-chong, WANG Hai-fang, MENG Yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 156-161.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.029
    Abstract （466）      PDF （1571KB）（178）       Save
    As a very important part of market economy in China, the operation of individual businesses is related to the social and economic development in China. In recent years, the state has also strongly advocated the transformation and upgrading of individual businesses, so the transformation and upgrading problem of individual businesses is a research hotspot in recent years. Through investigation and research, from the perspective of individual businesses, on the basis of discussing the factors affecting the transformation and upgrading of individual businesses, this study analyzed the real option characteristics of individual business, constructed the decision-making model using the real option theory for the transformation and upgrading of individual businesses, took landscaping industry as an example to validate and apply, and come to a conclusion combined with the tax analysis. In order to provide reference for individual businesses, especially in landscaping industry, when considering their own transformation and upgrading problems.
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    Study on the perception rule of climate change risk exposure based on Hanzhong,Xi’an and Yulin
    XUE Si-wen, ZHOU Qi, LI Ming-jie, MAO Yu-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 162-168.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.030
    Abstract （347）      PDF （5220KB）（219）       Save
    Improving people’s perception of climate change risk exposure is a key link for decision makers to implement risk management. Taking people from Hanzhong, Xi’an and Yulin city in Shaanxi province as the survey subjects, the polynomial fitting method was used to explore the trend of people’s perception of climate change risk exposure with age. At the same time, the wavelet analysis method was used to explore the chang period of people’s perception of climate change risk exposure with age, in order to provide reference for decision-makers to manage and deal with climate change risk.
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    The analysis on innovation path of characteristic towns development in Hubei province
    ZHANG Shi-ju, GUO Shi-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 169-173.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.031
    Abstract （374）      PDF （2585KB）（342）       Save
    The development of characteristic towns is a new urbanization development mode under the strategy of rural revitalization. By investigating the current situation of the development of characteristic towns in Hubei province, taking three representative characteristic towns as examples, the problems existing in the construction of characteristic towns in Hubei province were analyzed, such as lack of industrial characteristics, imperfect infrastructure, low visibility, and lack of resources. In view of the existing problems, four innovative paths to promote the development of characteristic towns in Hubei province were put forward, including positioning characteristic industries, increasing the construction of public infrastructure, building intelligent characteristic towns and integrating various resources.
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    Research on measurement and evolution of green economy development in three cities in southern Shaanxi
    WU Ting-ting, WANG Yi, DONG Zhen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 174-179.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.032
    Abstract （361）      PDF （1655KB）（152）       Save
    Based on the panel data of three cities in southern Shaanxi from 2010 to 2017, the projection pursuit model optimized by genetic algorithm and particle swarm optimization is used to calculate the green economic development level of the three cities. The results showed that from the perspective of regional vertical development, Hanzhong, Ankang and Shangluo showed a steady growth trend from 2010 to 2017, but the development characteristics of different regions were also different. From the horizontal perspective of sub indicators, Hanzhong ranked first, Ankang second and Shangluo third; In terms of economic development level and social development quality, Shangluo lagged behind Hanzhong and Ankang in terms of economic development level and social development quality. In terms of ecological civilization construction, Hanzhong had a small growth rate, but Ankang had declined, while Shangluo had achieved good results; The scientific and technological innovation service was the short board of Ankang green economy development.
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    Empirical study on the relationship among FDI,foreign trade and economic growth in Hubei province
    LIU Lan, ZHANG Teng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 180-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.033
    Abstract （333）      PDF （1563KB）（210）       Save
    Based on the data of FDI, foreign trade and economic growth in Hubei province from 1989 to 2019, the stationary test, Johansen cointegration test and Granger test showed that there was a correlation and long-term equilibrium relationship among FDI, foreign trade and economic growth in Hubei province, and FDI and foreign trade were conducive to economic growth in Hubei province. At the same time, combined with the theory of economic growth, Hubei province should further clarify the development strategy of outward opening, promote the development of Hubei Pilot Free Trade Zone, so as to attract foreign investment, expand exports, and stimulate the economic growth of Hubei province by expanding domestic demand.
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    Analysis of factors influencing farmers’ borrowing and borrowing scale under different channels
    GAO Meng-qi, GUO Hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 184-191.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.034
    Abstract （390）      PDF （1592KB）（173）       Save
    Farmers’ loan satisfaction is very important to increase farmers’ income and develop rural economy. Based on the field survey data of 520 sample farmers in Gaoping city of Shanxi province, this study empirically analyzed the influencing factors of whether the farmers borrow and the scale of borrowing. According to the different borrowing channels, farmers’ loan was divided into formal borrowing and private borrowing, and the sub-sample regression was conducted. The results showed that, the risk preference had a significant positive impact on whether the farmers borrowed, the age and the cultivated land area had a significant negative impact on whether the farmers borrowed; the age and the education level had a significant negative impact on the scale of farmers’ borrowing, the awareness on the borrowing policies and the total household income had a significant positive impact on the scale of farmers’ borrowing. From the perspective of different channels, different variables had different effects on whether farmers borrow and the scale of borrowing.
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    Study on the temporal and spatial evolution of county economy and its influencing factors in Fujian province
    LUO Sha-sha, ZENG Yu-rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 192-199.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.035
    Abstract （402）      PDF （8889KB）（85）       Save
    This study analyzed the temporal and spatial evolution of county economy development in Fujian province from 2008 to 2018, and analyzed the spatial correlation and difference by using the global spatial autocorrelation analysis tool. The geographical weighted regression model （GWR） was used to determine the influencing factors of county economy development, and the temporal and spatial evolution characteristics of each factor were analyzed. The results showed that, ①during the study period, the level of county economy development in Fujian province had been gradually improved, and the coordination degree of regional economy development had been continuously improved, but there was a phenomenon of unbalanced development; ②there was a high degree of spatial autocorrelation between the county economy development in Fujian province, and the economy development of each county had a strong correlation; ③in addition to the positive effect of consumption level on the county economy development, the effects of other factors were positive and negative, and the influence difference on county economy development was obvious. At last, the study put forward some ways to promote the development of county economy, such as expanding domestic demand, stimulating consumption, stimulating investment, reasonably controlling fiscal expenditure, and improving the quality of urbanization.
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    Research on new rural community governance approaches from the perspective of rural governance transformation
    LIU Yi-heng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 200-203.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.036
    Abstract （353）      PDF （1508KB）（200）       Save
    The transformation of rural governance brought both opportunities and challenges to community governance in new countryside construction. In this context, the new rural community governance mechanism was not perfect, the lack of scientific planning, the shortage of professionals, the lack of supervision and evaluation mechanism and other issues. Based on the analysis of rural governance subject, governance power distribution mode, governance mode and purpose, continuous improvement of governance mechanism, scientific governance planning, increase of talent training, and construction of evaluation and supervision mechanism can effectively promote the improvement of new rural community governance.
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    Research on the strategy of learning situation analysis of farmer training teachers
    XIA Jun-tao, SONG Xiao-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 204-208.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.037
    Abstract （364）      PDF （1522KB）（234）       Save
    Learning situation analysis is to improve the pertinence of teachers' teaching design and the effectiveness of teaching implementation. The autonomy of farmer training teachers' teaching puts forward high requirements for learning situation analysis. The walking and part-time characteristics of farmer training teachers' teaching cause the high difficulty of learning situation analysis, which leads to the lack, generalization or narrowing of learning situation analysis of farmer training teachers. Based on the teaching practice and the cognition of the characteristics of “class”, “lesson” and “time” of the farmer training, this paper put forward the strategy of stage learning situation analysis, which is divided into four stages： planning stage, preset stage, on-site stage and reflection stage, and analyzed it with specific cases.
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    Research on the protection and utilization of red cultural resources in Pingshan county,Hebei province
    ZHANG Li-yun, BAI Ming-gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 209-212.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.038
    Abstract （466）      PDF （1605KB）（412）       Save
    Protecting and utilizing the red cultural resources is an important way for the economic and social sustainable development of the old revolutionary base areas. Based on the field survey and relevant data review, this study sorted out the current situation of the protection and utilization of red cultural resources in Pingshan county, analyzed the main problems existing in the protection and utilization of red cultural resources in Pingshan county, and put forward reasonable utilization suggestions.
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    On three basic problems of targeted poverty alleviation in ethnic villages——Based on the reflection from the survey of Dadai village in Congjiang county
    WANG Guo-chao, PAN Hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (14): 213-216.   DOI: 10.14088/j.cnki.issn0439-8114.2021.14.039
    Abstract （409）      PDF （1515KB）（301）       Save
    Targeted poverty alleviation in ethnic villages was the result of accurate questioning of the traditional poverty alleviation model, and was the due meaning of poverty alleviation in ethnic villages. However, there were still many difficulties in the current poverty alleviation in ethnic villages. It is necessary to clarify three basic issues, namely, the precise connotation and path of poverty alleviation in ethnic villages, the cultural evolution and cultural relativity of poverty alleviation in ethnic villages, and the initiative and motivation of poverty alleviation in ethnic villages, so as to remove the basic obstacles for targeted poverty alleviation in ethnic villages．
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    Research progress on chemical compositions and pharmacological effects of Capsicum annuum L.
    DENG Wen-yi, WEN Jiang-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 5-10.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.001
    Abstract （855）      PDF （1651KB）（334）       Save
    Capsicum annuum L. has anti-tumor, pain relief, hypoglycemic and hypolipidemic, anti-fatigue, protecting gastrointestinal system and cardiovascular systems, and other pharmacological effects. The correlational research of chemical compositions, pharmacological effects and clinical applications of Capsicum annuum L. was summarized and analyzed, in order to provide references for its further research, development and utilization.
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    Mechanisms of glycosylation in enveloped virus infection
    WU Jia-qi, HUANG Jin-hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 11-15.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.002
    Abstract （417）      PDF （2275KB）（402）       Save
    Saccharides are organic compounds that are widely distributed and have important functions. They are covalently linked to a particular kind of proteins by glycosyltransferases to form glycoproteins. This modification process named glycosylation. With the development of research technology, the function of glycosylation in virus biology has been continuously explored. Glycosylation is widely used in virus diagnosis, diseases prevention and treatment, such as the development of antiviral vaccines and drugs. In this article, the function and mechanism of glycosylation in the infection of enveloped virus were discussed with virus glycoproteins and host cell glycoproteins as research objects. The frontier direction and practical application were also prospected.
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    Research status and direction of traditional village value evaluation
    ZHAO Jing-xue, WEI Feng-qun, LIN Bi-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 16-24.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.003
    Abstract （564）      PDF （3080KB）（626）       Save
    CiteSpace was used as an auxiliary tool to visually analyze the knowledge map structure of traditional village value evaluation at home and abroad, to explore the present situation of research in the area. Combining with the problems existing in the evaluation target, evaluation object, evaluation index system, evaluation process and method at the present stage, four development directions were proposed： Attaching great importance to the protection of value and its carrier, emphasizing the main body of public participation, improving the evaluation index system and expanding the research methods. It provided better guidance for realizing the effective protection and living state inheritance of traditional villages.
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    Effects of melatonin on germination and seedling growth of tartary buckwheat under salt stress
    SHI Tao-xiong, ZHU Li-wei, WANG Hong-xia, HUANG Juan, CHEN Qing-fu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 25-28.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.004
    Abstract （541）      PDF （1830KB）（298）       Save
    In order to study the effect of melatonin on the salt resistance of tartary buckwheat, the seeds of an inbred line WTX2 of Tartary buckwheat were soaked with different concentrations of melatonin and water as control （CK）. Then the germination experiment was carried out under salt stress （100 mmol/L NaCl）. The results showed that the salt resistance of seeds treated with melatonin was significantly improved compared with CK. Seed vigor index and seedling fresh weight treated by 100 and 1 000 μmol/L melatonin were higher than those of CK. The malonaldehyde （MDA） content in seedlings treated with 100 μmol/L and 1 000 μmol/L melatonin increased slowly during germination under salt stress, while it increased sharply in CK seedlings on the 6th day of germination. The seeds treated with 100 and 1 000 μmol/L melatonin had no significant decrease in superoxide dismutase （SOD） activity during 4~6 days of germination, while the SOD activity in CK seedlings significantly decreased. There was no significant change in catalase （CAT） activity of seedlings treated with 1 000 μmol/L melatonin germinated under salt stress, while the activity of CK seedlings showed an obvious decreasing trend. Appropriate concentration of melatonin can effectively alleviate the stress of high salt on tartary buckwheat.
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    Changes of early seedling growth and physiological and biochemical indexes of two wheat species under salt stress
    XIAO Dong-yu, WU Duan-yang, WEN Xue, ZHOU Lan, HE Hong-chao, WANG Yan-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 29-33.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.005
    Abstract （532）      PDF （1955KB）（588）       Save
    The changes of seedling growth and corresponding physiological and biochemical indexes of salt tolerant wheat variety Xindong 26 and salt sensitive wheat variety E'en 1 under salt stress were studied to provide basis for subsequent breeding of salt tolerant varieties. The results showed that under salt stress, the root length, bud length, dry weight and fresh weight of Xindong 26 and E'en 1 decreased with the increase of salt concentration, while the corresponding indexes of Xindong 26 decreased less than E'en 1; The activities of SOD, CAT and POD increased with the increase of salt concentration. The activity of Xindong 26 was higher than that of E'en 1. At the same concentration, the activity of SOD first increased and then decreased with the extension of stress time, but the activity of Xindong 26 was higher than that of E'en 1; The content of proline and MDA increased with the increase of salt concentration. The content of proline in Xindong 26 was higher than that in E'en 1, and the content of MDA was lower than that in E'en 1. At the same concentration, with the extension of stress time, the content of proline first increased and then decreased, while the content of MDA continued to rise. The content of proline in Xindong 26 was higher than that in E'en 1, and the content of MDA was lower than that in E'en 1, Xindong 26 could maintain cell homeostasis and cell membrane stability, and showed better salt tolerance. The salt tolerant varieties grew better than the sensitive varieties under salt stress, had higher antioxidant enzyme activities, accumulated more proline to maintain cell homeostasis, and the salt tolerant varieties had lower degree of cell membrane damage and stronger salt tolerance.
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    Effects of different nitrogen amounts on yield and agronomic characters of Taoyouxiangzhan
    YANG Xiao-long, FANG Jian-jun, WANG Ben-fu, WANG Hong-bo, CHENG Jian-ping, ZHOU Hou-cai, ZHOU Li, XU De-ze
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 34-37.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.006
    Abstract （369）      PDF （1989KB）（167）       Save
    To investigate the effects of different nitrogen application rates on yield and agronomic characteristics of cultivar-Taoyouxiangzhan under the rice-crayfish co-culture, 5 nitrogen application rates 0 kg/hm2（N0）, 135 kg/hm2（N1）, 150 kg/hm2（N2）, 165 kg/hm2（N3）, 180 kg/hm2（N4） were conducted in this study. The results showed that the maximum tiller number increased by 30%, the SPAD value of leaves increased by 9.38%, and the above-ground dry matter of the spikes at heading stage and milking stage increased respectively by 37.9% and 41.1%. The effective spikes, seed setting rate and thousand-grain weight were respectively increased by 39.1%, 16.3% and 3.69%. The actual yields under the conditions of N1, N2, N3 and N4 were respectively increased by 57.8%, 54.1%, 69.2% and 61.6% compared to the control. The effect of increasing yield is best under the condition of N3, but excessive nitrogen fertilizer application reduces nitrogen fertilizer utilization rate and causes agricultural non-point source pollution. Therefore, rational application of nitrogen fertilizer is of great significance for improving rice yield and protecting the environment.
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    Comprehensive regionalization study on the difficulty in ecological restoration of wind power plants in Hubei province with full consideration of meteorological effects
    WANG Hui, SUN Peng-jie, CHEN Zheng-hong, LI Hui, HE Li-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 38-43.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.007
    Abstract （402）      PDF （12382KB）（41）       Save
    The comprehensive zoning of ecological restoration difficulty of wind farms in Hubei province was carried out on the basis of full consideration of meteorological effects, which provided theoretical basis for wind farms in different regions to take different ecological restoration measures. 12 index factors of five categories were selected, including meteorology, soil, vegetation, geographic information and wind energy resources, which affected the ecological restoration of wind farms in Hubei province. The meteorological factor model was established in different regions by using the observation data of 89 national meteorological observation stations and 2 005 automatic observation stations from 2016 to 2018, and the distribution of annual rainfall, summer rainfall, annual mean minimum temperature and other indicators were obtained. A simplified soil rainfall erosivity model was established by using monthly precipitation, and the soil rainfall erosivity index was obtained. The land use type index was obtained by using land cover classification data. The normalized vegetation index （NDVI） was obtained by using satellite remote sensing data. Through the high-resolution （1 km） assessment （30-year average） data set of land wind energy resources, the wind speed at 70 m height and the wind power density at 70 m height were obtained. On this basis, based on the idea that meteorological impact played a dominant role in the ecological restoration process of wind farms, different weight influence coefficients were given to each index factor. Through the weighted comprehensive score method, the comprehensive regionalization grades of wind farm ecological restoration were obtained, which were easy recovered areas, easier recovered areas, difficult recovered areas and more difficult recovered areas. The easy recovered areas were mainly distributed in Jianghan plain, hilly plain in the middle of Xiangyang, Xishui, Qichun and Tuanfeng in east of Hubei province; The easier recovered areas were mainly distributed in the hilly areas of southeast and northwest Hubei; The difficult recovered areas were mainly distributed in the Dabie mountain area in the northeast of Hubei province, the Mufu mountain area in the southeast of Hubei province, the Tongbai mountain area in the north of Hubei province, the Dahong mountain area, and most area of Enshi. The more difficult recovered areas were distributed in some middle and high mountain areas of Hubei province.
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    Spatiotemporal evolution of ecosystem service value in Minshan area of Giant Panda National Park
    WANG Lin, FU Xiao, ZHU Chuang-ye
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 44-49.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.008
    Abstract （451）      PDF （5916KB）（202）       Save
    The Minshan area of the giant panda national park is the area with the largest number of giant pandas and local populations. Based on the land use data of three periods 2000, 2010, and 2020, the improved equivalent factor method was used to measure the regional ecosystem service value of and analyze the characteristics of temporal and spatial evolution. The results showed that from 2000 to 2020, the total regional ecosystem service value continued to rise. Affected by the Wenchuan earthquake,the growth rate slowed down from 2000 to 2010. Through natural restoration and artificial protection, especially the implementation of the pilot work of the giant panda national park system, the growth rate increased from 2010 to 2020. In terms of spatial distribution, the value of ecosystem services showed an overall pattern of high in the east and low in the west. The ecological protection of the Minshan area of the Giant Panda National Park had achieved remarkable results. The ecological environment service functions had been continuously improved, and the ecosystem service value had continued to increase.
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    Total selenium distribution and its influencing factors in cultivated land of Lichuan city,Hubei province
    WEN Quan-zhou, RAN Lu, ZHOU Fu-zhong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 50-55.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.009
    Abstract （937）      PDF （2584KB）（496）       Save
    In order to understand the spatial distribution and influencing factors of total selenium in cultivated land of Lichuan city, Hubei province, the total selenium content of 668 cultivated land samples were determined. The results showed that the measured values of total selenium in cultivated land presented lognormal distribution. The content of total selenium ranged from 0.011 mg/kg to 6.121 mg/kg, and the arithmetic mean and geometric mean were 0.465 and 0.349 mg/kg. In the land area of Lichuan city, the total selenium adequacy rate was 92.0% （more than 0.175 mg/kg）. The findings showed that Lichuan was a selenium rich area in China and an important part of the “selenium capital” of Enshi. There were significant differences in total selenium content among different soil parent materials, soil types, land use patterns or altitudes. In most of the factors studied, total selenium content was positively correlated with soil organic matter content and altitude, but not with pH. The content of selenium and organic matter in the soil of each factor （except the utilization mode） changed synchronously. Due to the influence of parent materials, soil type, land use patterns or altitude and other factors, there were differences in the content of soil organic matter, which might lead to changes of total selenium content distribution in cultivated soil of Lichuan city.
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    Fine regionalization of climate suitability for Hami melon planting in Yiwu county of Xinjiang
    WANG Sen, LI Na, BAI Song-zhu, JI Chun-rong, HUO Xun-guo, ZHANG Shan-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 56-59.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.010
    Abstract （682）      PDF （3926KB）（307）       Save
    Five-day moving average method, climate tendency rate, grid mathematical model and ArcGIS software were used to analyze climatological data of 18 meteorological stations from 1961 to 2018 in Yiwu county, Xinjiang. Taking the number of days with daily average temperature stability ≥15 ℃ as the index of ripening type, and light temperature index ≥20 ℃ as the index of quality, the fine division of climate suitability for Hami melon planting in Yiwu county was carried out. The results showed that the planting areas of Hami melon in Yiwu county were divided into the best planting area of late maturing, the best planting area of medium maturing, the best planting area of early maturing, the second best planting area of early maturing and the unsuitable planting area. The best planting area of late maturing was mainly distributed in the alluvial inclined plain below 450 m above sea level in central Naomaohu town; The best planting area of middle maturingwas mainly distributed in the plain at 450~700 m above sea level in Naomaohu town,the best planting area of early maturating was mainly distributed in the piedmont inclined plain at 700~850 m above sea level, the second best planting area of early maturating was mainly distributed in the piedmont inclined plain and hilly area at 850~1 000 m above sea level,the unsuitable planting area was mainly distributed in the areas higher than 1 000 m above sea level.
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    Research on the response of land cover to glacier melting under the background of climate change：Based on Shannan region of Tibet
    XING Jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 60-64.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.011
    Abstract （420）      PDF （6144KB）（272）       Save
    In the context of climate change, based on meteorological data, remote sensing monitoring data, and socio-economic data, the impact of glacier melt water on land cover in the Shannan region of Tibet from 2000 to 2018 was studied. The results showed that the area of glaciers was directly proportional to precipitation and inversely proportional to temperature. With the decrease of glacier melt water, the area of pure pasture on the edge of the glacier in the upper reaches of the grassland was decreased, the area of cultivated land in the middle reaches of the agricultural area was decreased, and the construction land in the downstream rapid urbanization area was expanded. Glacier melt water had a certain impact on land cover. Grassland area was reduced, arable land area was reduced, construction land area was increased, unused land area was increased, woodland area was decreased, and water area was decreased.
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    The relationships between inside and outside temperature of solar greenhouse under different weather conditions
    LI Wen-ke, CHEN Chen, LI Nan, DONG Zhi-qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 65-68.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.012
    Abstract （418）      PDF （2208KB）（179）       Save
    In order to quantify the relationship between solar greenhouse temperature and external meteorological conditions under different weather conditions, the weather conditions were analysised based on sunshine percentage method, and the changing rules of temperature in greenhouse under different weather conditions were analyzed. The quantitative relationships between temperature in greenhouse and external meteorological conditions were studied by establishing a regression equation. The results showed that on sunny, cloudy and full-cloudy days, the maximum temperature appeared at 12：00, 12：00 and 13：00 in spring and autumn, and the minimum temperature appeared at 6：00, 7：00 and 7：00 in greenhouse. In winter, the maximum temperature appeared at 13：00, 13：00 and 14：00, and the minimum temperature all appeared at 8：00. The temperature rising time in greenhouse was about 1 h later than outside, and the cooling time varied, with 2~3 hours earlier than outside in spring and autumn, and 1~2 hours earlier in winter. When the number of consecutive overcast days was less than 3 days, for every 1 ℃ decrease in outdside minimum temperature in spring and autumn, the minimum temperature in greenhouse would decrease by about 0.25, 0.32 and 0.32 ℃ on sunny, cloudy, and full-cloudy days, and by about 0.34, 0.42 and 0.37 ℃ in winter. When the number of overcast days exceeds 3 days, for every 1 days of continuous overcast days, the minimum temperature in greenhouse would decrease by 0.33 ℃ in spring and autumn, and by 0.41 ℃ in winter. For every 1 ℃ decrease in the outdside minimum temperature, the minimum temperature in greenhouse would decrease by about 0.34 ℃.
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    The effectiveness of several pesticide to control felt disease of Rubus suavissimus S. Lee in the field
    LIANG Hui-ling, TANG XING-chun, TANG Hui, WANG Man-lian, LIU Bao-yu, DENG Cheng-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 69-70.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.013
    Abstract （500）      PDF （1595KB）（158）       Save
    The control pesticide for felt disease of sweet tea（Rubus suavissimus S. Lee） in Guangxi were screened and studied. The results showed that abamectin·pyridaben 5.6% EC 1 000 times diluent and 22% spirodiclofen suspension 3 000 times diluent had a good control effect on Rubus suavissimus S. Lee felt disease, and the control effect was 80.9% and 83.3%, respectively.
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    Resilient design of road green space adapted to society-ecosystem：Case study of east second ring road of Hohhot
    YANG Shu-qi, WANG Min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 71-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.014
    Abstract （413）      PDF （2111KB）（306）       Save
    Based on the theory of society-ecosystem, this paper combines the concept of resilience and the design of road greenbelt, a framework for the adaptability of road greening from three aspects engineering elasticity, ecological elasticity and social elasticity was constructed, and a germ model for the elastic design of road greening was proposed. The eastern second ring road of Hohhot city was taken as the research object. According to the three steps of “order parameter catalysis-multi-stable fractal-adaptive domination”, three kinds of plants were arranged to allocate elastic space in fragmental, hierarchical and functional forms, the strategies of dynamic optimization and adaptive construction of road greening were put forward.
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    Effects of water flooding on color difference and physiological and biochemical indexes of Ilex cornuta ‘Oigon’ leaves
    ZHOU Yu-hua, GU Min-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 76-81.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.015
    Abstract （421）      PDF （2390KB）（246）       Save
    The morphological, physiological and biochemical indexes of two-year-old Ilex cornuta ‘Oigon’ cuttings were studied by pot experiments under simulated flooding stress. The results showed that the effects of water flooding on leaf color and physiological and biochemical indexes were obvious. With the prolongation of water flooding time, the color of its leaves became dark, and the content of chlorophyll was in a mild and slightly increased state. The initial fluorescence Fo of leaves decreased obviously, and the maximum fluorescence Fm, PSII maximum photochemical efficiency Fv/Fm, PSII potential photochemical activity Fv/Fo decreased obviously. The content of soluble sugar, soluble protein and MDA increased gradually. After 180 days of water flooding, the germination rate was 20%. It is indicated that the adaptability of it to water flooding is stronger.
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    Study on the change of starch content in different parts of mango flower bud regulation period
    LU Chen, ZHOU Ling, PENG Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 82-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.016
    Abstract （505）      PDF （1586KB）（158）       Save
    Mangifera indica L. from Yunlong village, Yuanjiang was used to study the changes of starch content in buds, phloem and leaves during flower bud differentiation by spraying urea, potassium dihydrogen phosphate and multiple microfertilizer on the crown after fruit bearing branches at short flowering stage. The results showed that the starch content in buds was the highest after the application of potassium dihydrogen phosphate, and reached the maximum value （15.47 mg/g） on March 7, which was 1.94, 1.60 and 1.00 mg/g higher than that of urea, multi-microfertilizer and control, respectively. The content of starch in phloem was the highest after the application of urea, and reached the maximum value （15.65 mg/g） on March 7, which was 0.68, 2.83 and 5.96 mg/g higher than that of urea, multivariate microfertilizer and the control, respectively. The content of starch in leaves was the highest in the control group and reached the maximum value （14.47 mg/g） on March 7, which was 2.18, 2.93 and 1.73 mg/g higher than that of potassium dihydrogen phosphate, urea and multi-microfertilizer, respectively.
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    Effects of water stress on the seed germination and seedling growth of Caragana Sinica and Sophora Moorcroftiana
    LIU Cheng-feng, ZENG Jia-qin, WANG Meng-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 85-89.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.017
    Abstract （384）      PDF （2275KB）（235）       Save
    In the experiment, Caragana sinica and Sophora moorcroftiana were used as test materials, and PEG solutions of different concentrations were used to simulate water stress to study the effects of water stress on seed germination and seedling growth of Caragana sinica and Sophora moorcroftiana. The results showed that in the range of PEG concentration of 0~100 g/L, with the intensification of water stress, the germination rate, germination vigor, germination index, vigor index and the length of radicle and embryo of germinating seedlings of Caragana sinica and Sophora moorcroftiana shows an overall downward trend, and the inhibition of physiological responses of Sophora moorcroftiana under sustained water stress conditions is more prominent, indicating that water stress has a greater impact on Sophora moorcroftiana; when the stress concentration reaches 150 g/L, the two plants seeds were unable to germinate, indicating that the critical PEG water stress value for the germination of Caragana sinica and Sophora moorcroftiana seeds was less than 150 g/L. From an overall point of view, Caragana sinica has stronger drought resistance ability compared with Sophora moorcroftiana, and is more suitable for growing in arid environment.
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    Study on ground diameter volume model of artificial Cryptomeria fortunei in Guizhou province
    LIU Jian-zhong, ZHANG Jiang-ping, LI Chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 90-95.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.018
    Abstract （403）      PDF （1679KB）（135）       Save
    In order to meet the needs of forest production and management, dealing with cases of illegal felling and excessive felling, checking and accepting the felled forest volume, the relationship between the ground diameter and volume of Cryptomeria fortunei was studied and the volume table of Cryptomeria fortunei ground diameter was compiled. According to the resource distribution of Cryptomeria fortunei in Guizhou province, the author uses the typical sampling method, 21 investigation samples were selected from Daozhen, Hezhang, Pu'an, Pingba and Jinsha, and 317 samples wood data were investigated according to 8 diameter steps,among which 240 were constructed and 77 were tested. According to the technical specification for root diameter standing volume table and six mathematical models commonly used for root diameter standing volume. Taking the weighted least square method of ForStat 2.2 statistical software, the best model of Cryptomeria fortunei diameter volume table was selected by comparing and evaluating the fitting effect of 9 indexes such as sum of squares of deviations, correlation index and total relative error. The volume model of Cryptomeria fortunei has some guidance for estimating the volume of Cryptomeria fortunei, but the result is limited because only one variable of ground diameter.Under the condition that the ground diameter, diameter at breast height and tree height are all limited, it is recommended to use the binary standing timber volume model of Cryptomeria fortunei.
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    Effects of paclobutrazol treatment on the growth and physiology of Sophora japonica ‘Jinhuai’
    QIN Fang, ZHANG Jun-jie, SHI Yan-cai, QIN Hui-zhen, ZOU Rong, JIANG Yun-sheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 96-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.019
    Abstract （760）      PDF （1660KB）（714）       Save
    Using pot experiments, the effects of different concentrations paclobutrazol （PP333） on the growth and physiological changes of Sophora japonica ‘Jinhuai’ seedlings were studied. The results showed that, with the increase of PP333 concentration, tree height, leaf area and taproot length of Sophora japonica ‘Jinhuai’showed a declining trend, whereas base diameter, leaf length to width ratio, fresh weight of root, and root-shoot ratio showed an increasing trend, and the main root diameter gradually increases within the range of 300~500 mg/L. The effects of PP333 treatment on the physiological indexes of ‘Jinhuai’ is： chlorophyll content increases first and then decreases, reaching the maximum value at 375 mg/L, relative water content, soluble sugar and soluble protein content in leaves were effectively increased, MDA content and relative conductivity were effectively reduced compared with that in the control, the activities of POD and CAT reached the maximum when the concentration of paclobutrazol was 500 mg/kg and 750 mg/L, and the activity of SOD increased with the concentration of paclobutrazol; ‘Jinhuai’ seedlings had the strongest resistance with 750~ 1 500 mg/L PP333. PP333 can improve its resistance by regulating the growth and physiological processes of ‘Jinhuai’ and 750 mg/L was best.
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    Study on root system distribution of Camellia szechuanensis Chien based on TRU system at three different site conditions
    ZOU Shi-hui, LI Ling-li, TIAN Zhong, HE Yong-shu, ZHOU Li, SONG Chun-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 101-106.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.020
    Abstract （393）      PDF （1643KB）（147）       Save
    Based on the TRU system, the root system of Camellia szechuanensis Chien planted in Nanshan Botanic Garden, Longcha Huahai, and Yongchuan Road and Park Greenbelt was measured at 0.5 m and 1.0 m circle of the trunk, the number and distribution range of diameter ≥1cm roots were measured,in order to compare the distribution characteristics of roots under different site conditions, explore the limit factors of its application in road and park greenbelt. Meanwhile, 7 soil samples were collected, 8 indexes were measured for each soil sample, such as soil pH, EC and organic matter content and so on. The results showed that：（1） at a distance of 0.5 m to 1.0 m from trunk, the depth of diameter ≥1 cm root distribution is increasing, at a range of 0-62 cm; （2） at a distance of 0.5 m to 1.0 m from trunk, the number of diameter ≥1 cm roots increases gradually. Among them, The number of diameter ≥1 cm roots increased from 20 to 35 in Nanshan Botanic Garden, from 34 to 46 in Longcha Huahai, from 11 to 13 in Yongchuan district; （3）78%-85% of diameter ≥ 1 cm of roots distributed in 20-72 soil layer in Nanshan Botanic Garden, 80-82% of diameter ≥1 cm of roots distributed in 0-40 cm soil layer in Longcha Huahai, about 50% of diameter ≥1 cm roots distributed in 0-20 soil layer in Yongchuan district; （4） Compared with Nanshan Botanical Garden and Longcha Huahai, at a distant of 0.5 m and 1.0 m from trunk, the tree planted in Yongchuan district with the same diameter showed less root number, root distribution and root extension. This is closely related to the poor soil quality at the survey site. Anyway, improving the soil quality, especially the depth of main roots distribution, plays an important role in promoting the restoration of C. szechuanensis Chien growth.
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    Study on the effect of carboxymethylation of Siraitia grosvenorii polysaccharide on its antioxidant
    BAI Jia-feng, YAO Yan-chao, ZHENG Yi, LIU Shao-hua, LIU Qi-bin, ZHOU Yi, XING Yu-qing, YANG Wen-jing, XU Chun-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 107-111.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.021
    Abstract （463）      PDF （2203KB）（328）       Save
    In order to study the structure and antioxidant properties of Siraitia grosvenorii polysaccharide and its carboxymethylated products, Siraitia grosvenorii polysaccharide was extracted from Siraitia grosvenorii using enzymatic hydrolysis method and modified by carboxymethylation. GC-MS monosaccharide analysis was carried out and Fourier Infrared Spectroscopy. The scavenging ability of polysaccharides of Siraitia grosvenorii and its carboxymethylation products on 1,1-diphenyl-2-trinitrophenylhydrazine （DPPH） and hydroxyl radical （·OH） was also studied. The results showed that the extraction rate of Siraitia grosvenorii polysaccharide was 3.64, and the degree of carboxymethylation substitution was 0.41. GC/MS technology was used to analyze the monosaccharide composition of Siraitia grosvenorii polysaccharides. Combined with the area normalization method, Siraitia grosvenorii polysaccharides were obtained from furanose （3.53%）, arabinose （7.22%）, mannose （20.60%）, glucose （38.03%）, xylose （0.73%）, galactose （28.65%）, galacturonic acid （0.51%）, glucuronic acid （0.74%）. Compared with that before modification, the polysaccharides modified by carboxymethylation had stronger antioxidant properties.
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    Analysis on the effect of technology of konjac rice wine on its quality
    CAI Sha, MEI Xin, HU Bao-lan, HE Jian-jun, SUI Yong, SHI Jian-bin, CHEN Xue-ling, FAN Chuan-hui, CAI Fang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 112-115.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.022
    Abstract （457）      PDF （1674KB）（306）       Save
    Using brown rice as raw material, konjac was added to the traditional process to analyze the effect of technology of konjac rice wine on its quality. The results showed that the addition amount of konjac had little effect on the quality of konjac rice wine. With the increase of konjac, the quality analysis indexes showed a gentle trend of change. The pre-fermentation time and post-fermentation time had great influence on the quality of konjac rice wine. With the prolongation of fermentation time, each quality analysis index showed an irregular change trend. The addition amount of koji had the greatest effect on the quality of konjac rice wine. With the increase of koji, each quality analysis index showed a large trend of change.
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    Determination of organophosphorus pesticide residues in rice by GC
    MENG Qing-shun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 116-119.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.023
    Abstract （428）      PDF （2019KB）（414）       Save
    The method for the determination of 15 organophosphorus residues in rice was established by gas chromatography. The method was verified by flame photometric detector FPD+, external standard method and automatic injection under established gas chromatography. The results showed that the 15 organophosphorus pesticide were well separated on DB1701 quartz capillary column by temperature programmed. The method had high recovery, good reproducibility and short analysis time. It was an accurate, stable and simple method, which can fully meet the needs of practical application.
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    Study on the content determination and extraction technology of total flavonoids from Ranunculus brotherusii
    WANG Wan-cui, MA Qian, JI Di-jun, LIU Ming-zhu, LU Yong-chang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 120-122.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.024
    Abstract （396）      PDF （1603KB）（183）       Save
    UV spectrophotometry was used to determine the content of total flavonoids of Ranunculus brotherusii, orthogonal design was used to optimize the extraction process, and the effects of the ratio of solid to liquid, extraction time, ethanol concentration and other factors on the extraction amount of total flavonoids were investigated. The results showed that the maximum amount of total flavonoids was obtained when ultrasonic extraction was conducted for 1.0 h with 70% ethanol and the ratio of material to liquid was 1∶55. This method is accurate, simple and easy to operate, which can be used as a basis for the quality evaluation of Ranunculus brotherusii.
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    Comparison of vitamin D3 distribution and content of three different shellfish
    ZHANG Xiao-xia, LIU Xin-yan, XU Yan, JIA Zhe, SONG Ru
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 123-126.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.025
    Abstract （399）      PDF （4272KB）（254）       Save
    The distribution and content differences of vitamin D3 in different parts were studied by using Mactra veneriformis, Paphia undulata and Cyclina sinensis as experimental materials. Direct extraction method was used to extract vitamin D3 from clam meat and viscera of Mactra veneriformis, Paphia undulata and Cyclina sinensis respectively. High performance liquid chromatography was used to detect the distribution and content of vitamin D3 in different clams and viscera. The results showed that the vitamin D3 extracted from different parts of shellfish was absorbed at 264 nm. The content of vitamin D3 in Paphia undulata meat was as high as 10.9±0.7 μg/g, while the content of vitamin D3 in the viscera of Cyclina sinensis was significantly lower than that in the viscera of Mactra veneriformis and Paphia undulata.
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    Research on the construction of information service platform for Qinling characteristic towns
    GUO Meng, WANG Yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 127-131.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.026
    Abstract （367）      PDF （1576KB）（260）       Save
    Sort out the status quo of characteristic town development and information service platform construction, analyze the construction goals of Qinling characteristic town information service platform from four aspects： image integration, brand building, ecological services, and realization of ecological product value, and build information on Qinling characteristic towns on this basis service platform. The Qinling characteristic town information service platform consists of three levels： the main body layer, the platform layer, and the application layer. Through the enhancement of the communication power of the information service platform, cultural revitalization, industrial revitalization and ecological revitalization have been realized. The integration of small town industries and accelerating the integration of resources in small towns play an important role in providing information support for the construction of Qinling characteristic towns with the “three-life integration” of production, life, and ecology.
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    Polarimetric SAR image classification based on Freeman decomposition and radar vegetation index
    LI Cheng-rao, JIA Shi-chao, XUE Dong-jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 132-135.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.027
    Abstract （577）      PDF （10820KB）（305）       Save
    Based on the coherence matrix of the image, the characteristic parameters, namely the radar vegetation index （RVI）, were extracted. Then the Freeman decomposition of the covariance matrix of the image was performed, and three scattering mechanism parameters were obtained, which are body scattering, surface scattering and dihedral scattering. These parameters are then combined into a support vector machine （SVM） to classify the polarimetric SAR images and compare them with the Wishart supervised classification. The results show that the radar vegetation index can improve the classification accuracy of vegetation, and the classification accuracy of this method was significantly higher than the Wishart supervised classification.
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    Effect of hormone-induced SlMYB102 transcription factor on physiological characteristics of tomato at low temperature stress
    LI Meng-dan, WANG Mei-ling, GUO Yang-dong, ZHANG Xi-chun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 136-140.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.028
    Abstract （383）      PDF （1653KB）（262）       Save
    To investigate the effects of six exogenous hormones on the expression of tomato transcription factor SlMYB102 gene under low temperature stress. Exogenous hormone spraying and low temperature treatment were applied to tomato seedlings with four leaves and one heart. In hormone treatment, salicylic acid （SA）, augrin （IAA）, gibberellin （GA3）, 6-benzylamine （6-BA）, abscisic acid （ABA） and methyl jasmonate （MeJA） were sprayed on the leaves. Distilled water was sprayed as a control. Sampling at 0, 1, 3, 6, 9, 12 and 24 h after low temperature treatment at 4 ℃. The expression of tomato transcription factor SlMYB102 gene was detected by real-time fluorescence quantitative PCR. The results show that induced by ABA,GA3,IAA,SA,6-BA and MeJA, SlMYB102 gene responded to all six hormones and presented an up-regulated expression pattern. As a member of the R2R3-MYB subfamily of MYB family, SlMYB102 transcription factor may be involved in the regulatory network of these hormones in response to stress.
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    The targeted-regulating role of Nlu-miRNA-8 on gene Ccdc124 by dual luciferase reporter gene
    ZHA Wen-jun, YOU Ai-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 141-143.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.029
    Abstract （597）      PDF （1841KB）（215）       Save
    To identify the influence of Nlu-miRNA-8 on the expression of Ccdc124（coiled-coil domain-containing protein 124-like）, based on the construction of the psi-CHECK2 luciferase reporter gene vector. Firstly, the Ccdc124 gene fragment containing the Nlu-miRNA-8 binding sequence was designed and synthesized. The luciferase reporter gene vector was constructed and transfected into Drosophila S2 cells. The effect of Nlu-miRNA-8 on the expression of Ccdc124 was observed by the change of luciferase activity. The results showed that Nlu-miRNA-8 significantly inhibited the fluorescence expression of the Ccdc124 group, but it did not significantly inhibit the fluorescence expression of the blank control and NC group. In this study, we successfully constructed a psi-CHECK2 vector of the 3′-UTR segment of the Cdcc124 gene, and preliminarily confirmed that Nlu-miRNA-8 can regulate the Cdcc124 gene.
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    Tissue culture technology of stem segments of Tinospora sagittata
    ZHANG Xiao-yue, WEN Chao-ping, ZHOU Yu, DONG Kai-mi, CHEN Hua, WANG Ren-rui, HOU Da-bin, YANG Yu-xia, YU Ma
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 144-147.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.030
    Abstract （418）      PDF （4091KB）（252）       Save
    Tinospora sagittate nodal segments in different positions were used as initial explants to explore the effect on axillary induction. Media were also screened for strengthening of weak plantlets. The results showed that positions of nodal segments significantly influenced the axillary induction and browning rate. With the positions of nodal segments from top to base of stems, the axillary induction rate decreased but browning rate increased gradually. The axillary induction rate of top no.1 nodal segment was 93.3%,which was significant higher than other positons of nodal segments. The browning rate of top no.1 nodal segment was 13.3% and the number of axillary buds （>0.5 cm） was 6.7. Maximum average length of shoots （4.1 cm） and average number of leaves （6.5） was recorded in the optimal strengthening media of MS+10 mL/L EDTA.
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    Research on the influencing factors of rural collective economy development：Based on the comparative analysis of eastern and western cases
    LI Hong-bo, DENG Shu-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 148-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.031
    Abstract （473）      PDF （1562KB）（163）       Save
    Exploring the way of rural collective economy development and strengthening the achievements of rural collective economy development were of great significance to break the bottleneck of the development of “agriculture, rural areas and farmers” and realize rural revitalization. By using the comparative analysis method, this study selected the cases of rural collective economy development in the eastern and the western, combined with the theory of economy growth, and made a comparative analysis of the rural collective economy development in the case area from five aspects of capital, talent, technology, system and culture, so as to explore the factors influencing the development of rural collective economy and provide countermeasures and suggestions for promoting the development of rural collective economy.
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    Research on the countermeasures of video promotion of China’s agricultural products from the perspective of communication：Take Li Ziqi’s video promotion as an example
    HU Run-zhe, WEI Jun-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 152-156.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.032
    Abstract （621）      PDF （1577KB）（386）       Save
    Taking the short video promotion of Li Ziqi’s team as an example, this paper briefly analyzes the characteristics of Li Ziqi’s video dissemination and promotion under the “5W model” of communication, and on this basis, the problems in China’s agricultural product video promotion are analyzed from the perspective of communication. The results show that there are problems such as the rural culture strangeness, insufficient branding of agricultural products and uneven video promotion content in the current video promotion of China’s agricultural products. To improve above problems, it is necessary to adopt measures such as accumulating agricultural cultural consumption capital to reduce “cultural unfamiliarity”, insisting on “content is king” to strengthen the brand building, making full use of the new media matrix and establishing a professional team.
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    Study on the spatial distribution of health tourism resources in Xi’an section of Qinling mountains
    ZHOU Wei-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 157-160.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.033
    Abstract （429）      PDF （2463KB）（510）       Save
    This paper analyzes the spatial distribution of 86 health tourism resources in Xi’an section of Qinling mountains by using the methods of nearest neighbor index, clustering and outlier analysis, kernel density analysis and buffer analysis. The results show that the health tourism resources in Xi’an section of Qinling mountains have significant spatial agglomeration characteristics, showing a spatial distribution pattern of “overall dispersion and local concentration”. Chang’an district is more densely distributed, while other counties are relatively sparse; Compared with other forms of tourism, health tourism has higher requirements for ecology. Therefore, it is suggested that different counties should formulate different development strategies of health tourism. Highlight the central position of Chang’an, focus on brand building, complete supporting facilities, and explore the establishment of health tourism distribution center; Other counties focus on improving supporting facilities, exploring the development strategy of thematic and characteristic health tourism. In addition, ecosystem restoration and repair should be strengthened.
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    Evaluation of the execution of municipal household waste classification policy based on AHP-FCE method：A case study of Jiading district,Shanghai
    WEN Jing, PU Chun-ling, YAN Zhi-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 161-168.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.034
    Abstract （442）      PDF （1908KB）（297）       Save
    The evaluation index system for the implementation of the household garbage classification policy was constructed from six aspects of execution validity, execution strength, execution attitude, execution angle, execution speed and execution difficulty. Then, the AHP method was used to reckon the index weight of each level, and the FCE method was used for comprehensive evaluation. The results indicate that the weight values of the six standard levels are execution strength>execution validity>execution difficulty>execution attitude>execution angle>execution speed. The comprehensive evaluation result of the implementation of the domestic waste classification policy in Jiading district, Shanghai is at a strong level. On the one hand, it shows that there is still room for improvement in the implementation of the domestic waste classification policy in Jiading district. On the other hand, it also shows that the prospects for compulsory classification of domestic waste to be fully spread nationwide are promising. Finally, some suggestions are put forward based on the evaluation results.
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    Research on the construction of intelligent logistics ecosystem in three regions of Shaanxi
    TIAN Pei, FAN Xiao-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 169-173.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.035
    Abstract （517）      PDF （1573KB）（425）       Save
    With the development of information technology and e-commerce, logistics informatization transformation and upgrading, the construction of regional logistics and intelligent logistics is imperative. On the basis of the relevant literature review of the construction of intelligent logistics and intelligent logistics system, combined with the development situation and trend of intelligent logistics in the three major regions of Shaanxi, this paper constructs the intelligent logistics ecosystem of the three major regions in Shaanxi, improves the integration ability of logistics industry resources in Shaanxi province, and drives the logistics enterprise alliance and cooperation to the scale, integration, networking, specialization and intelligent development, enhances the market competitiveness of logistics industry in Shaanxi province, and realizes the integration, coordination and integrated development of the three regions in Shaanxi.
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    Optimal dispatching of water resources in artesian irrigation district of Ningxia based on genetic algorithm-generative adversarial neural network model
    DONG Chen-chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 174-180.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.036
    Abstract （374）      PDF （4094KB）（285）       Save
    In view of the phenomena of large crop water consumption, concentrated water use, and low irrigation efficiency in Ningxia artesian irrigation area. According to the actual water use in Ningxia, focusing on the water inlet and outlet of the channel, the premise is to meet the basic irrigation water of farmland, and the goal is to maximize irrigation efficiency. Using machine learning methods to build genetic algorithm-generative adversarial neural network model in Ningxia artesian irrigation districts, and verify and apply them in more than 30 kilometers of channels and irrigation areas of the Qinhan Canal Management Office in Ningxia. The results show that the model deeply excavates the water usage rules of each water intake on the basis of learning traditional scheduling schemes, establishes efficient water intake joint scheduling irrigation methods, saves 315 109~1 050 362 m3 of irrigation water per month, and significantly improves the efficiency of water resource utilization in Ningxia.
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    Study on the influence of livelihood capital on farmers’ enthusiasm to grow grain in Jianghan plain
    SHI Yu, WU Xue-lian, MUNTHALI G
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 181-187.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.037
    Abstract （397）      PDF （1649KB）（171）       Save
    In view of the social phenomenon of farmers’ livelihood capital increasing fragmentation in Jianghan plain, this paper explored the regularity of the impact of livelihood capital on farmers’ willingness to grow grain in Jianghan plain, and and determined 11 indicators from five aspects of human capital, physical capital, financial capital, natural capital and social capital to study the influence on the enthusiasm of the farmers to plant of Jianghan plain. Binary and multiple Logistic model analysis method were adopted to investigate farmers in Jianghan plain by stratified random sampling method. Five cities （Jingzhou, Qianjiang, Xiantao, Jingmen and Xiangyang） were selected to analyze the impact of livelihood capital on farmers’ grain planting enthusiasm in Jianghan plain. The results showed that there was a strong correlation between livelihood capital and farmers’ willingness to grow grain in Jianghan plain, among which the grain acreage cultivated, whether the family had agricultural machinery and tools, and whether they joined production cooperatives showed significant positive influence. Electronic products, part-time income on grain enthusiasm showed a significant negative impact. Therefore, we should promote the orderly transfer of land,promote “mechanization” projects,encourage farmers to join production cooperatives, and effectively improve the utilization rate of resources.
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    Research on high quality development path of Xianning tea industry under the background of rural revitalization
    GUO Zhi-ming, DING Kun-ming, MA Meng-jun, TANG Shi, QU He-ping, YANG Xiong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 188-191.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.038
    Abstract （431）      PDF （1570KB）（313）       Save
    Industrial revitalization is the basis of rural revitalization, tea industry is the traditional advantage of Xianning characteristic industry. Start with the present situation development of tea industry, the advantages of tea industry inpromoting rural revitalization in Xianning city and the problems existing in rural industry revitalization were analyzed, and the path of tea industry development to help Xianning city rural revitalization was put forward.
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    Analysis on the construction strategy of rural sports service system based on rural revitalization
    SU Tie-zhu, WANG Jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 192-194.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.039
    Abstract （423）      PDF （1656KB）（153）       Save
    Rural issues have always been the focus of the national attention. Rural revitalization has provided a direction for rural development, and has also ushered in new opportunities for rural development. This paper mainly studied the relationship between rural revitalization and the construction of the rural sports service system, and the importance of the construction of the rural sports service system from the perspective of rural revitalization. It is concluded that the government, rural grassroots and villagers should play their roles in this work, guide the system construction, improve the quality of construction, and seize the important opportunity of the implementation of rural revitalization strategy, so as to realize the high-quality development of agriculture and rural areas.
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    Research on the development of county agricultural industry under the background of rural revitalization：Taking Tuanfeng county as an example
    YU Shuang, GAO Fen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 195-198.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.040
    Abstract （491）      PDF （1564KB）（354）       Save
    Under the background of the implementation of the rural revitalization strategy, based on the perspective of the county-level government, the current situation of the agricultural industry in Tuanfeng county was the starting point, and the problems in the development of the agricultural industry in Tuanfeng county were analyzed. Some measures were put forward to promote the development and revitalization of agricultural industry in Tuanfeng county, such as optimizing the regional layout, integrating the advantageous resources of agricultural development, expanding and strengthening the characteristic industry, and cultivating the characteristic brand.
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    An empirical analysis of the influential path on rural residents’ sense of gain：Based on the survey of three places in Shandong province
    WANG Zhe, GUAN Pei-xia, LIU Yu-jie, MAO Qian, QIAO Xiao-wei, PAN Qing-zhong, WANG Su-zhen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 199-203.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.041
    Abstract （370）      PDF （1759KB）（205）       Save
    In order to understand the status of rural residents’ sense of gain in Shandong province and the impact path of various factors on sense of gain, stratified cluster random sampling method was used to select Qingdao,Weifang, Dezhou in Shandong province as the research objects, and 955 subjects were selected. SPSS 26.0 software was used to describe the sense of gain, Spearman correlation and normality test,AMOS 21.0 software was used for path analysis of the related factors. The results show that the sense of social justice can directly affect the sense of gain; And the per capita monthly income, subjective economic status and social security can influent the sense of gain through direct effects and indirect effects. Therefore, it is of great significance to develop rural economy,increase farmers’ income,promote social justice, and strengthen rural social security.
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    Research on the reconstruction of rural space features and influencing factors in southern Henan
    ZHANG Dan-dan, LOU Zhi-qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 204-208.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.042
    Abstract （390）      PDF （6580KB）（349）       Save
    This study explored the rural spatial characteristics and influencing factors in southern Henan through field research and document combing methods, and clarified the deconstruction and reconstruction of influencing factors in current rural life. The results show that the overall space of southern Henan village is highly integrated with nature, and the spatial form is flexible; The public space has a strong sense of place and poor guidance; The residential courtyard is ecologically livable and has a strong aesthetic. The formation of rural characteristics is affected by both internal factors and external factors, but the weakening of internal factors and the changes of external factors in rural life have led to the subsidence of rural characteristics. The new era of rural life should be combined with the strengthening of regional culture, the continuation of the ecological concept, the characteristic service life, and the integration of new factors to reconstruct the characteristic influencing factors, in order to provide theoretical support for the continuation of the rural regional characteristics of southern Henan.
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    The governance function and realization path of the local style of confucian filial piety culture
    GONG Ya-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 209-212.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.043
    Abstract （420）      PDF （1560KB）（257）       Save
    In order to strengthen the construction of rural civilization, give full play to the important role of confucian filial piety culture in alleviating social pension contradictions, building a harmonious social relationship and improving people’s spiritual civilization. By analyzing the main ideas of confucian filial piety culture and the existing filial piety problems in rural areas, this study puts forward that measures such as promoting the excellent traditional filial piety culture, changing the single old-age mode, guiding the public opinion and so on to alleviate the problems of filial piety in the governance of rural customs, such as the lack of filial piety culture, the dilution of filial piety, the contradiction between mother-in-law and daughter-in-law, so as to realize the governance function of rural customs of filial piety culture.
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    Research on the path of the integration of agricultural science and education to promote the revitalization of rural culture
    CUI Tao, HUANG Zhen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (15): 213-216.   DOI: 10.14088/j.cnki.issn0439-8114.2021.15.044
    Abstract （453）      PDF （1562KB）（190）       Save
    Under the background of rural revitalization strategy, in order to better train new professional farmers, popularize rural culture, and improve the scientific and cultural quality and humanistic quality of rural residents, based on the analysis of the background, connotation and practical difficulties of rural cultural revitalization, this paper expounds the path of agricultural science and education integration to boost rural cultural revitalization. That is, relying on the innovative development mode of rural vocational education and agricultural science and technology, organically integrating the elements of rural culture, improving the education mechanism of rural culture, exploring the local traditional cultural heritage, connecting rural culture with the advantages of rural industrial resources, and boosting the integration and development of rural economy and cultural industry, so as to provide reference for the exploration of the path of rural cultural revitalization inside and outside Shandong province.
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    Research status of ethnic drug Ventilago leiocarpa Benth.
    LIU Qian-qian, LIANG Xiao-lian, LI Wen-li, CHEN Yong, LIU Wen-jun, HUANG Zhou-yan, LI Yuan, ZENG Shui-feng, WEI Ze-yun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 5-8.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.001
    Abstract （617）      PDF （1579KB）（440）       Save
    The roots and rhizoe of Ventilago leiocarpa Benth., which plants belongs to Rhamnaceae, is a kind of ethnic drug. Ventilago leiocarpa Benth. can clear heat and promot diuresis, which has special effects on urinary system calculus. This article mainly summarize the chemical constituents, identification characteristics, quality control and pharmacological action of Ventilago leiocarpa Benth., and provide the basis for further research, development and application of Ventilago leiocarpa Benth.
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    Progress in research on inflammation and oxidative stress induced by PRRSV
    ZHANG Wen-tao, GUO Yan-yu, HUANG Jin-hai, ZHANG Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 9-14.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.002
    Abstract （473）      PDF （2917KB）（390）       Save
    Porcine Reproductive and Respiratory Syndrome Virus （PRRSV） is a single stranded positive-sense RNA virus that couldcsused reproductive disorders of sows and serious respiratory diseases in piglets. PRRSV had led to a great shock and a huge economic loss to the global swine industry. Severe systemic inflammation, interstitial pneumonia and fever were induced by PRRSV in piglets, indicating that the inflammatory response played an important role in the pathogenic mechanism of PRRSV infection. Cells infected by PRRSV would produce excessive reactive oxygen species, which caused pathogenic oxidative damage in the inflamed tissue, demonstrating that oxidative stress response was also crucial in the pathogenic mechanism of PRRSV infection. In order to further explore the pathogenic mechanism of PRRSV infection and to prevent and control PRRSV infection, this paper reviewed the molecular mechanism of inflammation and oxidative stress induced by PRRSV.
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    Study on seedling development of cotyledon embryo in microspore culture of Brassica napus L.
    WAN Li-li, WANG Zhuan-rong, XU Yi, KANG Lei, YANG Guang-sheng, XIN Qiang, HONG Deng-feng, SUN Yu-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 15-20.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.003
    Abstract （473）      PDF （2566KB）（239）       Save
    The embryos induced by microspore cells in Brassica napus L. were cotyledon type and non-cotyledon type such as globular embryo, heart-shaped embryo and unregular embryos structure. Cotyledon embryos can grow into plantlets quickly on seedling medium, but non-cotyledon embryos are easy to browning and die. Therefore, reducing non-cotyledon embryos and obtaining cotyledon embryos is the key point to improve the efficiency of microspore regeneration.In this research, we isolated microspore cells from three varieties and transferred them to different media and culture methods. In order to optimize the experiment, the microspores isolated from three varieties were cultured in the dark at 25 ℃ for 2 weeks. They were transferred from the solid-liquid double-layer culture medium and treated with different agitation period, temperature, concentrations of activated carbon and 6-BA. The results showed that the number of cotyledon embryos grown on the solid-liquid two-layer medium was significantly increased than that in the liquid medium. The number of cotyledon embryos obtained from the combination of solid-liquid double-layer medium and agitation for 1 week was evidently increased and the number of non-cotyledon embryos was significantly reduced. When microspores were cultured at 23 ℃, there was no significant difference between the total number of embryos and the control, but the number of cotyledon embryos increased significantly. The result on the effect of various concentrations of activated charcoal and 6-BA on sublayer medium indicated the combination of 0.1% and 0.25 mg/L 6-BA was very promising, as it outperformed the control treatment in the yield of normal looking embryos. In this study, we developed a two-step （liquid culture and solid-liquid double-layer culture） microspore culture protocol. It can effectively obtain high-quality cotyledon embryos with ability to regenerate seedlings, which may greatly accelerate the application of microspore-derived DH plants as breeding tool.
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    Comparision of processing quality and appearance quality among different ratooning rice varieties
    DUAN Men-jun, TIAN Yu-cong, JIN Tao, LIU Zhang-yong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 21-23.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.004
    Abstract （473）      PDF （1901KB）（236）       Save
    In order to explore the main factors affecting the ratooning rice whole polished rice rate, and select the high-quality ratooning rice varieties suitable for Honghu city in Hubei province, using Xindeyou 8258, Tianyouhuazhan and Fengle No.4 as experimental materials, the processing quality and appearance quality of three ratooning rice varieties were compared. The results showed that the first-season rice yield of Xindeyou 8258 was significantly higher than that of Tianyouhuazhan and Fengle No.4, while Tianyouhuazhan had the highest yield in the ratooning season, with a yield of 5 971.4 kg/hm2. The yield of Xindeyou 8258 was the lowest, with a yield of 4 238.7 kg/hm2, but there is no significant difference in the total yield between the two seasons. The brown rice rate, polished rice rate and whole rice rate of Xindeyou 8258 were the highest, which were 80.1%, 68.8% and 62.9% respectively, and they were all significantly higher than Fengle No.4. The chalky interest rates of Tianyouhuazhan and Fengle No.4 were significantly different, and the aspect ratios of Xindeyou 8258 and Fengle No.4 were significantly different. Correlation analysis showed that the head rice rate of each variety of ratooning rice was extremely significantly positively correlated with the brown rice rate and polished rice rate （P=0.001）, and was significantly negatively correlated with the chalky rate （P=-0.712）. Under the premise of ensuring the total yield, Xindeyou 8258 and Tianyouhuazhan whole polished rice rate than Fengle No.4. Therefore, Xindeyou 8258 and Tianyouhuazhan were more suitable for planting in Honghu area.
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    Effects of straw mulch and fertilizer reduction on yam growth,soil temperature and humidity
    ZHOU Jie, TIAN Gui-sheng, YOU Qiu-xiang, XING Lie-huo, MO Jing-hua, JIN Yu-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 24-27.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.005
    Abstract （447）      PDF （1560KB）（189）       Save
    The effects of straw mulch and fertilizer reduction on yam growth, soil temperature and humidity were studied using field trials of rain-fed yam. The results showed that returning straw to the field could not only significantly reduce the temperature of the 0~5 cm topsoil during the high temperature period （14：00） （average decrease of 1.5~2.4 ℃）, but also significantly increase the 0~5 cm topsoil during the high temperature and drought periods. The water retention capacity of the layer （an average increase of 1.2~3.4 percentage points）, under the same amount of straw cover and return to the field, 15% reduction in fertilizer had no significant effect on the temperature and humidity of the 0~5 cm topsoil layer. The yield and biomass of yam during the maturity period were increased due to the cooling and moth-killer effect of straw mulch, increasing yields1 070~3 490 kg/hm2 and 450~1 780 kg/hm2, respectively, while the same amount of straw mulching returned to the fields, the 15% reduction in fertilizers was the opposite, reducing yields1 420~3 615 kg/hm2 and 550~1 368 kg/hm2, respectively. In terms of the effects of soil cooling and soil protection and yam yield increase, when the straw coverage can be selected as 6 000~7 500 kg/hm2, the fertilizer reduction can be 15%.
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    Effects of phosphate concentration on the growth of Scenedesmus obliquus
    CHEN Xiao-jiang, DONG Fu-yu, LIU Xiao-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 28-32.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.006
    Abstract （464）      PDF （1612KB）（216）       Save
    The effects of different phosphorus concentration gradients levels on the growth of Scenedesmus obliquus was studied by setting up culture experiments with concentration gradients of 0.01, 0.05, 0.10, 0.15, 0.20 mg/L. The results showed that Scenedesmus obliquus growth associated with the phosphorus concentration in water body, in culture period, compared with the reference group, different phosphorus concentration on Scenedesmus obliquus growth had a promoting effect, under the condition of phosphorus concentration was 0.15 mg/L, the algal density maximum of 129.25×104 cells/mL, when the concentration of phosphorus increased to 0.20 mg/L, the algal density reduced to 108.18×104 cells/mL, instructions in five phosphorus concentration gradient, when the phosphorus concentration was 0.15 mg/L for Scenedesmus obliquus growth optimal concentration, when it higher than this concentration, the growth of Scenedesmus obliquus was restricted. According to one-way ANOVA, under the condition of sufficient nutrient nitrogen, the increase of phosphorus concentration promoted the explosive growth of algae, indicating that the increase of phosphorus concentration in water was an important factor for the generation of algal bloom.
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    Spatial variability of precipitation in western Hunan province based on geostatistics
    ZHANG Kun, LI Xiao-liang, ZENG Lin, MAO Cheng-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 33-37.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.007
    Abstract （436）      PDF （7101KB）（146）       Save
    Based on the precipitation data of western Hunan province from 1981 to 2019, the spatial structure and variation characteristics of annual and seasonal precipitation were analyzed by using geostatistical variogram theory, and the spatial distribution of annual and seasonal precipitation was studied based on ordinary Kriging interpolation. The results showed that there was a second-order trend in the annual and seasonal precipitation in western Hunan province. In the east-west direction, the annual, spring and summer precipitation presented an inverted U-shaped trend, increased gradually from east to west in autumn, and decreased gradually in winter; In the north-south direction, the annual precipitation presented a U-shaped trend, spring and winter gradually decreased from south to north, and summer and autumn gradually increased. Through the comparison of interpolation errors, the optimal fitting model of annual and seasonal precipitation was obtained. The annual precipitation was spherical model, spring, summer and autumn were Gaussian model, and winter was exponential model. The C0/（C0+C） of winter precipitation was less than 25%, which indicated that the winter precipitation had strong spatial correlation, and the spatial variation caused by random factors was very small. The C0/（C0+C） of annual and other seasonal precipitation was between 25% and 75%, indicating that the precipitation had moderate spatial correlation. The annual, summer and autumn precipitation in western Hunan province was decreasing gradually from north to south, while it was increasing in spring and winter.
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    Change of forest ecosystem services value in Gansu province from 2006 to 2016
    ZHANG Xiao-qing, ZHAO Wan-kui, CHEN Zhi-ping, ZHAO Fang-yuan, LI Xiao-bing, YAN Yue-e, LI Zhen-cun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 38-43.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.008
    Abstract （474）      PDF （1620KB）（147）       Save
    Based on the data of the fifth（2006）, sixth（2011） and seventh（2016） National Forest Resources Inventory in Gansu province, the function and value of forest ecosystem services in Gansu province from 2006 to 2016 was evaluated according to the Standard for Assessment of Forest Ecosystem Services Function（LY/T 1721—2008）. The results showed that the value of forest ecosystem services in Gansu province showed an increasing trend in 2006—2016, with a total increase of 246.92 billion yuan, increased by 13.52%. The average increase of it was 2.469 billion yuan and the average annual growth rate of it was 1.42%. Among the eight ecological functions, water conservation, soil conservation, carbon sequestration and oxygen release, and biodiversity conservation play a significant role, occupying a dominant position. The value of the four functions together accounts for nearly 90% of the total value.
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    Screening of lignocellulosic degradation complex strains
    SUN Miao-miao, LI Juan, LIU Guo-qing, ZHOU Chun-yang, WEI Zhang-qi, WU Jian-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 44-49.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.009
    Abstract （458）      PDF （6131KB）（312）       Save
    In order to improve the degradation rate of biomass straw and screen high-efficiency biomass cellulose degrading bacteria, the corn stalk-rich rot was used as a bacterial source, and the cellulose-congo red selective medium was used for preliminary screening to separate high-efficiency cellulose-degrading bacteria. The initial screening was determined by the diameter of the transparent ring on the Congo red medium and the disintegration ability of the filter paper strip; The rescreening was carried out by the determination of the enzyme activity, including the determination of the activity of the filter paper strip and the determination of the activity of the carboxymethylcellulose enzyme. Screening step by step to form a complex strain of high-efficiency strains, the results showed that a group of corn stalk degradation complex strains were screened from the decayed corn stalks and in the enzyme activity assay, the C1 strain had the highest filter paper activity of 8.52 U/mL; The N1 strain had the highest cellulase activity of 6.44 U/mL. By sequencing and identifying the strains of the selected strains, the dominant strains of composite bacteria were Trametes, Sarocladium, Streptomyces, Actinomycetales unclassified, Propionibacterium.
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    Evaluation of the effects of seven herbaceous plants on the improvement of saline soil in the tidal flat reclamation area of Taizhou
    RUAN Jia-ping, DU Zhao-kui, WU Xia-shan, DAI Ze-miao, YU Lan, YUAN Yi-qi, LI Jun-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 50-56.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.010
    Abstract （509）      PDF （3562KB）（342）       Save
    To evaluate the improvement effects of common salt-tolerant plants on coastal saline soils, seven artificial populations including Medicago sativa, Suaeda salsa, Melilotus officinalis, Sorghum dochna, Sorghum bicolor×Sorghum sudanense, Lolium perenne and Sesbania cannabina were constructed in the Taizhou tidal flat reclamation area, and the physical and chemical properties, the number of microorganisms and soil enzyme activities of 0~10 cm soil were measured after planting in 30 d interval. The results showed that compared with the control （bare land）, the salt content, pH and soil bulk density of the planting soil gradually decreased with increasing the experiment time, which decreased by 6.9%~12.2%, 7.5%~10.5%, and 28.5%~42.5% at 90 d, respectively; Organic matter, total nitrogen, total phosphorus content and nitrate reductase activity of planting soil gradually increased with time （with some exceptions）, compared with the control, they decreased by 24.5%~72.3%, 10.2%~90.8%, 78.9%~181.1% and 428.6~533.0% at 90 d, respectively; Compared with the control, the number of soil bacteria and catalase activity increased had no significant differences at 90 d, but the number of actinomycetes in soil planted with Sorghum dochna, Sorghum Bicolor×Sorghum Sudanense grass and Sesbania cannabina were significantly higher than that of the control on the 90 d; Principal component analysis indicated, the 10 individual indexes related to the effect of plants on soil improvement were converted into 5 comprehensive indexes, representing 97.32% of the total information. In order to calculate the membership function value of the planting soil of each plant, and the contribution rate of the principal component after weighting, the comprehensive evaluation value （D） of soil properties was finally obtained, the improvement effects of 7 herbaceous plants on the local saline soil in Taizhou were Medicago sativa>Melilotus officinalis> Sorghum bicolor×Sorghum sudanense grass>Lolium perenne>Sorghum dochna>Sesbania cannabina>Suaeda salsa.
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    Ecological security evaluation of Xiangxiang city
    ZHU Peng-dan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 57-63.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.011
    Abstract （401）      PDF （12206KB）（39）       Save
    Xiangxiang city, a typical county-level city located in the central part of Hunan province, was taken as the research object, and the ecological security evaluation index system was constructed from 14 indexes, such as elevation, slope, topographic relief, land use type, NDVI, distance to river, distance to highway, rainfall, biodiversity, soil thickness, grain yield, etc. An ecological security evaluation model based on random forest （RF） intelligent algorithm was proposed, which combined with GIS technology to evaluate the ecological security of 50 m×50 m grid was used as the evaluation unit to identify the extremely important factors affecting the ecological security level of Xiangxiang city. The results showed that the ecological security level of Xiangxiang city was in the middle and low level, and the proportion of low and medium level grid was 84.33%. The spatial distribution of ecological security level was uneven, which was higher in the west and north than in the east and south, higher in the hilly area than in the plain, and higher in the mountainous area than in the urban area. The main factors affecting the level of ecological security in Xiangxiang city were biodiversity, distance from highway, distance from river and land use type in order of importance. Soil thickness, soil erodibility, rocky desertification degree and other factors had relatively little influence on the evaluation of ecological security level. The sample training accuracy of the random forest ecological security evaluation model was 98.01%, and the test accuracy was 95.53%, which had a high accuracy.
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    The application of optimized Grey-Markov model in forecasting annual precipitation of Hulunbuir city
    ZHANG Zhi-li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 64-69.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.012
    Abstract （449）      PDF （1611KB）（396）       Save
    By using annual precipitation data of Hulunbuir grassland from 2002 to 2016, taking the method of Weighted slip optimization, unbiasing grey model improvement and residual sequence correction to modify the GM（1,1） model, the Grey-Markov combination model of sliding unbiased residuals correction is constructed. The results show that after comparing the actual precipitation of Hulunbuir in 2017 and 2018, finding the combined model is ideal in the degree of prediction fitting and accuracy, it can be used to reasonably predict the annual precipitation of Hulunbuir. In 2019—2021, the annual precipitation of Hulunbuir will increase. The most likely in 2019 will be in accurate assessment and overestimation state, with a probability of 41% and 38% respectively. However, in 2020 and 2021 is the overestimated state, that is, the actual annual precipitation in these two years will be lower than the predicted result of the prediction model with the same probability of 42%. On the whole, the annual precipitation in Hulunbuir will be abundant in the future, which will play a positive role in promoting the ecological development of Hulunbuir grassland.
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    Cultivated land resource endowment and spatial layout optimization of agriculture industry：A case study of Yushe county,Shanxi province
    GUO Jia-jun, LI Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 70-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.013
    Abstract （676）      PDF （3305KB）（234）       Save
    In order to make full use of cultivated land resources and improve the benefits of agricultural industry and accelerate the high-quality development of agricultural industry, this research took Yushe county of Shanxi province as an example to optimize the use efficiency and layout order of agricultural industry space by studying the endowment of cultivated land resources. The status of cultivated land endowment was made clear, including the spatial distribution of cultivated land in dryland, irrigable land, township, and topographic areas. According to the evaluation of cultivated land quality, four combination grade of cultivated land quality were divided into “fourth grade, fifth grade-sixth grade, seventh grade-eighth grade, ninth grade-tenth grade”, and the spatial distribution of cultivated land quality of the total quality of cultivated land and the quality of cultivated land in dryland, irrigated land, towns and topographic parts were studied. Through the analysis of cultivated land quality, the spatial layout of agricultural industry was optimized and adjusted. Three spatial distribution regions of agricultural industry were planned“Priority allocation-high quality cluster”, “rectification and adjustment-characteristic improvement” and “reduced withdrawal-ecological restoration”. The endowment of cultivated land resources restricted the development of agricultural industry, and the quality of cultivated land reflected the productivity of cultivated land. Dividing agricultural industry layout according to the quality of cultivated land could improve the utilization rate of cultivated land and promote the development of agricultural industry in the direction of high quality, high yield and high efficiency.
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    Spatial-temporal evolution characteristics of the production-living-ecological spatial function coupling coordination in the western Sichuan urban agglomeration
    LIU Tao, HOU Lan-gong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 76-83.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.014
    Abstract （422）      PDF （3668KB）（430）       Save
    Based on the production-living-ecological spatial theory and the coupling coordination model, the spatial functions, coupling degrees, and coupling coordination degrees of the production-living-ecological of 68 districts and counties in the western Sichuan urban agglomeration from 2003 to 2018 were quantitatively measured, and their temporal-spatial distribution pattern were revealed. The results show that the county-level production function of the western Sichuan urban agglomeration shows "one core, multiple levels, and two belts" growth trend, and the growth rate of the production function in the east is higher than that in the west. Areas with high living functions are mostly distributed in the middle of the study area, and present the spatial characteristics of Chengdu's central urban area as the core area, and the main urban areas of other prefecture-level cities as multi-level areas, driving the overall improvement of living functions in the surrounding areas. In terms of space, the ecological function presents an obvious spatial distribution pattern of high surroundings, low in the middle, high in the west, and low in the east. From the time series dimension, it can be seen that the ecological functions of the northern and western regions have shown a continuous upward trend. The degree of correlation between production, life and ecological space in the western Sichuan urban agglomeration has shown an upward trend from antagonism to coordinated coupling, and it is manifested in the form of spatial increase from "point to surface", and the degree of spatial function coupling and coordination of production-living-ecological. It is in a state of fluctuating growth, with the largest increase in the mildly dysfunctional phase; the evolutionary trend of the degree of coupling and coordination of the production-living-ecological spatial function is close to the "∩"-shaped growth curve.
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    Effect of passion fruit on Bactrocera dorsalis Hendel growth and development
    LIU Kai, CHEN Pei-jun, HE Rui-chun, GUAN Zi-ying, HAN Qun-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 84-88.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.015
    Abstract （520）      PDF （4464KB）（328）       Save
    Field investigations and laboratory experiments were conducted to explore the dangers of Bactrocera dorsalis on passion fruit and the passion fruit influence the growth and development of Bactrocera dorsalis. The field investigation showed that the adult Bactrocera dorsalis was found in passion fruit plantations in Guangxi and Guangdong, and the traces of damage could be seen on the pericarp of passion fruit, but the pulp was intact. The eggs of Bactrocera dorsalis were found in 51.7% of fruit victims. Laboratory experiments showed that Bactrocera dorsalis could lay eggs on passion fruit, and the average number of oviposition marks was 1.73/fruit, and the pupation rate was 94.2%. Bactrocera dorsalis could not complete its life cycle on the peel of mature fruits. Compared with the peel, passion fruit flesh significantly improved the pupation rate and eclosion rate, but it was still lower than the banana control group. The sugar content and pH of mature passion fruit were 17.72% and 1.78, respectively,which were not conducive to the oviposition and growth of Bactrocera dorsalis. In conclusion, Bactrocera dorsalis can complete its growth and development on the passion fruit, but passion fruit was not a suitable host for Bactrocera dorsalis.
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    Safety assessment of fourteen insecticides to Arma chinensis
    LI Wen-hong, ZHANG Chang-hua, QIN Wei-wei, XIE Hong-lian, DONG Xiang-li, LI Zhi-mo, MENG Jian-yu, GUO Xiao-guan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 89-92.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.016
    Abstract （475）      PDF （1575KB）（230）       Save
    The indoor toxicity of 9 common-used insecticides and 5 biological insecticides to Arma chinensis was assessed by spray method. The safety assessment of five pesticides （deltamethrin, beta-cypermethrin, imidacloprid, cyantraniliprole, azadirachtin） to Arma chinensis on bean and pepper plant were also tested in the field. The results showed that, among the 14 tested insecticides, sulfoxaflor, chlorantraniliprole, Bacillus thuringiensis, Empedobacter brevis and Spodoptera frugiperda NPV all showed least toxicity and were relative safe to Arma chinensis; Indoxacarb and matrine were both lower toxicities with LC50 of 85.64 mg/L and 404.03 mg/L respectively at 48 hours after treatment, followed by cyantraniliprole, beta-cypermethrin, deltamethrin, cyhalothrin, azadirachtin. The highest toxicities were detected for thiamethoxam and imidacloprid, with LC50 of 0.96 mg/L and 1.16 mg/L respectively at 48 hours after treatment. Among the five insecticides tested, imidacloprid had the highest risk of Arma chinensis, with 100% mortality after 24 h, followed by deltamethrin, beta-cypermethrin, cyanidebromide and azadirassin.
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    Pathogenicity identification of Rhizoctonia spp. in maize sheath blight from southwest China and the resistance of 23 corn varieties
    CUI Li-na, LI Xiao, ZHANG Zhen-yu, ZHANG Hai-yan, LIU Shi-jian, LONG Qiang, ZOU Cheng-jia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 93-97.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.017
    Abstract （430）      PDF （1589KB）（261）       Save
    In order to clarify the differences in the pathogenicity of maize sheath blight strain in southwest China, 33 strains of different groups of maize sheath blight strain were selected as the research object, and the pathogenicity of maize cultivar Chuandan 13 was identified by artificial inoculation at seedling stage and adult stage. The results showed that the virulence of different groups of Rhizoctonia on maize was significantly different, and the virulence of different strains in the same group was also different, moreover, the virulence of AG1-ⅠA was the strongest in these groups. The resistance of 23 varieties were identified by four strains of AG1-ⅠA、AG4-HGI、AG2-2ⅢB、WAG-Z. The resistance differences among varieties were obvious when AG1-ⅠA was used to identify the resistance of maize varieties, including 1 highly susceptible cultivar, accounting for 4.35%; 6 susceptible cultivars, accounting for 26.09%; 11 moderately resistant cultivars, accounting for 47.82%; 5 resistant cultivars, accounting for 21.74%; And no high resistant varieties. The resistance difference could not be identified when inoculated with the other groups since most of varieties were high resistance and individual was resistance.
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    Development and study of phenazine-l-carboylic acid water soluble liquid agent
    WANG Jin-peng, YU Di-ya, WANG Li-xiang, LI Jun-kai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 98-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.018
    Abstract （433）      PDF （1548KB）（164）       Save
    Phenazine-1-carboxylic acid （PCA） was prepared into water-soluble liquids with NaOH, KOH, NH3 and isopropylamine, respectively, and the stability and indoor toxicity of each formulation were tested. The soluble liquids of PCA isopropylamine salt were screened out, then the field trial of rice sheath blight control was carried out. The results showed that after cold storage, hot storage and room temperature storage, the 4 soluble liquids were the most stable in storage at room temperature. The degradation rates of PCA isopropylamine salt, PCA ammonium salt, PCA potassium salt and PCA sodium salt were 0.82%, 1.64%, 1.41% and 1.49%, which respectively had good stability. The EC50 of four water-soluble preparations of PCA isopropylamine salt, ammonium salt, potassium salt, sodium salt and PCA original drug to control the mycelia of Rhizoctonia solani were 19.994 0, 21.489 9, 23.953 6, 23.953 5, 19.235 4 μg/mL. Field test results showed that when the dosage of the preparation was 1 050 g/hm2, the water-soluble solution of shenzinomycin and isopropylamine had the highest control effect against rice sheath blight in the field, reaching 84.35%, which was better than the 1% PCA suspension agent.
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    Appearance characteristics of Lolium perenne Linn. different varieties in vegetation concrete to drough and heat stress
    YANG Jie-feng, DENG Hong-hua, FEI Yong-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 101-105.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.019
    Abstract （384）      PDF （4735KB）（219）       Save
    Three varieties of ryegrass （Lolium perenne Linn.）（Barverdi, Medalist and Accent） in vegetation concrete habitat were used as experimental materials,after treatment by dry heat stress, their injury degree, leaf color, texture, stomatal density and length width ratio were measured, and their recovery ability was also tested. The results showed that the leaf color of three varieties of ryegrass became lighter, the leaf width decreased, and the damage degree was significant. The order of dry heat resistance was Accent>Medalist>Barverdi, the order of stomatal size was Barverdi>Medalist>Accent, and the order of stomatal density was Accent>Medalist>Barverdi.Comprehensive evaluation showed that Accent had the strongest dry heat resistance.
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    Study on seed interplanting technology of yellow essence and corn
    ZHOU Jun, XIAO Neng-wu, ZHANG Ze-zhi, ZHOU Ming, LI Kun, SI Hai-qian, QIN Guang-ming, WU Feng, OUYANG You-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 106-107.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.020
    Abstract （1050）      PDF （1773KB）（354）       Save
    The planting technology of Polygonatum sibiricum and the practical technology of intercropping Polygonatum sibiricum with maize were introduced to provide a reference for providing economic benefits, promoting the development of intercropping model and growers.
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    Effects of different growth regulators on cutting rooting of Cissus hexangularis
    LU Xiang-yun, ZHANG Yan-ling, DENG Rong-yan, YANG Mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 108-112.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.021
    Abstract （473）      PDF （1661KB）（317）       Save
    In order to explore the effects of different concentrations of plant growth regulators on the cutting rooting of Cissus hexangularis, and to promote a large number of cutting propagation.The annual branches of Cissus hexangularis were used as experimental materials, and three growth regulators of different concentrations NAA, IAA and ABT were used to pretreat the cuttings of Cissus hexangularis. After 60 days, the rooting rate of cuttings, rooting number per plant, the longest root length of adventitious root, contents of soluble sugar, contents of soluble protein and peroxidase （POD） activity were measured. The results showed that all the three growth regulators could promote the cutting propagation of Cissus hexangularis. The comprehensive evaluation of cutting rooting of Cissus hexangularis with different concentrations of growth regulators showed that the optimum concentrations of ABT 100 mg/L, IAA 400 mg/L and NAA 100 mg/L were higher than the optimum concentration, which weakened the cutting rooting effect.
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    Analysis of multivariate relationship among seedlings of Carya illinoinensis rootstock containers
    DU Yang-wen, DENG Xian-zhen, LI Xi-guo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 113-116.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.022
    Abstract （392）      PDF （1740KB）（129）       Save
    ：In order to find out the relationship between seedling height, ground diameter, fresh weight aboveground, fresh weight underground, dry weight aboveground, dry weight underground, root-crown ratio, root-to-crown ratio, height-diameter ratio, moisture content, total biomass, seedling mass index, root length, root surface area, root volume,using correlation analysis, stepwise regression linear analysis, curve analysis,the optimal fitting equation of quadratic curve between seedling height and aboveground dry weight was Y=11.740+2.231X+1.880X2, the optimal fitting equation of quadratic curve of seedling ground diameter and total biomass Y=3.143+0.127X+0.002X2 was established, the double linear optimal equation of total biomass and aboveground dry weight and underground dry weight Y=-0.002+1.001X1+0.993X2 was established, a linear optimal fitting equation of seedling mass index, optimal equation of mass index of seedling and binary linear fit of dry weight and moisture content of underground Y=0.131+0.026X1-0.003X2 was established, the ternary linear optimal fitting equation of seedling root length, root surface area, height and fresh weight aboveground was Y=-618.227+1.795X1+62.056X2-165.366X3. The best fitting equation can be used to predict and guide the seedling cultivation and afforestation effect of small shell pecan stock container.
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    Effects of cooperation of nitrogen amount and planting density on the production and quality of cigar
    HE Ming-chang, LIU Li-ping, LI Ji-hong, WANG Xue-song, XU La, LI Sheng-min, TAN Shao-an, WANG Rui, ZUO Mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 117-121.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.023
    Abstract （470）      PDF （1705KB）（283）       Save
    To explore nitrogen amount and planting density on the production and quality of cigar, and CX-81 was selected as the research object,the effects of three different nitrogen application levels of 142.5 kg/hm2（N1）, 172.5 kg/hm2（N2）, 202.5 kg/hm2（N3）, and three densities of 18 180 plants/hm2（D1）, 20 205 plants/hm2（D2）, 22 725 plants/hm2（D3） on the contents of chlorophyll, economic characters, chemical components after air-during of cigar were studied. At the same time, the correlations of chlorophyll content and the chemical components of cigar were analyzed. The results showed that with the increase of planting density, the contents of chlorophyll, total sugar, reducing sugar and the ratio of total sugar to nicotine decreased gradually, and nicotine and total nitrogen increased with the increase of nitrogen application, while chlorophyll, reducing sugar and total sugar were the highest in N2 level. The content of chlorophyll in the middle cigar leaves was positively significant correlated with total sugar and reducing sugar. The nitrogen application amount and density had significant difference on nicotine, total nitrogen, total sugar, reducing sugar, nitrogen-alkali ratio and sugar-alkali ratio of cigar, but the interaction of the two just had significant difference on total nitrogen and the ratio of nitrogen to alkali. The higher nitrogen application could obtain a larger single leaf weight and yield, but it affected the quality of tobacco. The smaller planting density was beneficial to the quality of tobacco, but it affected the yield. It was suggested that the nitrogen application amount should be 202.5 kg/hm2 in the low density （D1） planting area, and 172.5 kg/hm2 should be selected in both D2 and D3 planting area.
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    The influence of meteorological factors on tobacco leaf quality in Hubei tobacco area：Taking Yuanbao township,Lichuan city,Enshi prefecture as an example
    SUN Jing-guo, ZHANG Yun-zheng, SUN Guang-wei, TAN Ben-kui, ZHANG Peng-long, LI Jian-ping, FENG Ji, CHEN Zhen-guo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 122-126.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.024
    Abstract （449）      PDF （1586KB）（466）       Save
    Taking Yuanbao township, Lichuan city, Enshi prefecture as the representative of the typical area, and relevant studies on meteorological factors and tobacco leaf quality were carried out. The results showed that the meteorological conditions of Yuanbao township in Lichuan city met the demand of high-quality tobacco leaf production. The correlations of temperature, sunshine hours and precipitation at different stages of tobacco leaf field growth period with potassium, nicotine, total nitrogen, total sugar content and sensory quality of tobacco leaf were clarified, and the influence weights of meteorological factors at different stages on tobacco leaf quality were determined.
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    Research on the cultivation of chlorella for aquaculture with fermentation of soybean meal by yeast
    WU Shun, LUO Shu-yuan, JIANG Yang, JIN Wei-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 127-131.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.025
    Abstract （601）      PDF （1660KB）（319）       Save
    In the way of liquid fermentation, the yeast was inoculated into soybean meal, and the fermentation at different temperatures on shake. After different fermentation time, the fermentation liquid was used to culture chlorella directly and boiled. The growth trend of chlorella was determined by measuring the A680 of culture fluid, using BG11 culture liquid as the control group, and some parameters affecting the water quality in the culture liquid were measured. the results showed that the ferment filtrate at 29 ℃ combined with BG11 culture medium could promote the growth of Chlorella most effectively, next was fermentation product at 28 ℃, A680 was 1.532 and 1.463 respectively after culturing for 9 days, and the worst culture effect was using BG11 culture medium alone （P<0.01）; the effect of chlorella culture with bacteria removal was better than that without bacteria removal （P<0.01）; the best liquid fermentation temperature with soybean meal by yeast was 28 ℃ and the best fermentation time was 7 days; the ammonia nitrogen, total nitrogen and nitrite in the fermentation liquid of soybean meal could be eliminated basically after culturing chlorella, but the concentration of total nitrogen and nitrite in BG11 culture liquid maintained a high level; the consumption of soybean meal after fermentation was consistent with the production of chlorella; after culturing chlorella for 7 days, the parameters related to water pollution reached class II level. the ferment of soybean meal by yeast was suitable for rapid cultivation of feed grade or food grade Chlorella, and could be used in aquaculture directly without any treatment.
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    The analysis of volatile components from different Siraitia grosvenorii extracts and their applications in cigarette
    WU Qi-xian, WU Jin-ming, FENG Yun-zi, LI Yu-ming, ZHAO Rui-feng, ZHAO Mou-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 132-136.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.026
    Abstract （493）      PDF （2089KB）（330）       Save
    Fresh and dried Siraitia grosvenorii were used as materials to prepare extracts by water extraction and alcohol extraction, Which got fresh Siraitia grosvenorii water extract, fresh Siraitia grosvenorii alcohol extract, dried Siraitia grosvenorii water extract, dried Siraitia grosvenorii alcohol extract. The volatile components of the four Siraitia grosvenorii extracts were determined by gas chromatography-mass spectrometry（GC-MS）, and the results of cigarette flavoring test were analyzed with principal component analysis to study the application value of Siraitia grosvenorii extracts in cigarette. The results showed that there were significant differences in the volatile components of the four extracts. 11, 12, 14 and 13 volatile components were detected in the fresh Siraitia grosvenorii water extract, fresh Siraitia grosvenorii alcohol extract, dried Siraitia grosvenorii water extract and dried Siraitia grosvenorii alcohol extract respectively. In addition, the extracts of Siraitia grosvenorii could improve the smoking quality of cigarettes, among which the effect of 2‰ fresh Siraitia grosvenorii water extract was the best, followed by 2‰ dry Siraitia grosvenorii water extract.
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    Study on the quality and safety traceability system of selenium-enriched tea in Ziyang county from the perspective of block chain+agricultural product traceability
    YANG Meng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 137-140.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.027
    Abstract （410）      PDF （2571KB）（274）       Save
    To establish an efficient traceability system for quality safety of selenium-enriched tea based on block technology, using 5G network, on the basis of comprehensively improving the information transmission rate between the server and the client, combined with blockchain technology, the data authenticity and sharing of the traceability system were fully enhanced. Results showed that the simulation software was used to verify the working status of the quality and safety traceability system of selenium-enriched tea, mainly to verify the availability and stability of information transmission during the working period of the system. This platform has higher data transmission efficiency and higher accuracy of data feedback results.
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    Research of identificating agricultural muti-agents cooperation relative position and attitude based on quaternion visual navigation algorithm
    MENG Fu-jun, YUE Sheng-ru, HU Xue-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 141-144.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.028
    Abstract （396）      PDF （1830KB）（269）       Save
    Based on the theory of quaternion, A camera survey model was constructed to measure the relative position and attitude of agricultural muti-agents, the order of the matrix was reduced, the amount of calculation was effectively reduced, the calculation efficiency and precision of the relative position and attitude are improved, and the requirements of the precision and real-time of the agricultural machinery autonomous relative navigation can be met, and conducted the simulation experiment. The simulation results showed that this method can provide relatively accurate relative position & attitude information.
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    Study on the selection willingness of farmers’ homestead revitalization and utilization mode based on SEM-Logit model
    HOU Yu-jie, PU Chun-ling, YAN Zhi-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 145-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.029
    Abstract （434）      PDF （1602KB）（211）       Save
    In order to analyze the factors affecting the selection willingness of farmer’s homestead revitalization and utilization mode, based on the survey data of typical pilot villages in Shandong province, 14 variables were selected from the dimensions of farmer’s personal characteristics, family characteristics, homestead characteristics and policy perception characteristics to form the influencing factor set. Four research hypotheses were proposed according to the farmer behavior theory. Using SEM-Logit comprehensive model to verify the hypotheses and analyze the specific effect of observation variables on the willingness of mode selection. The results showed that the latent variables of all dimensions positively affected the farmers’ selection willingness of the revitalization and utilization mode, among which the influence of policy perception characteristics was the most obvious; farmers with multiple homesteads were the key objects to participate in the revitalization and utilization, and they generally payed attention to whether the revitalization and utilization mode could realize the property value of the homestead. Based on the above conclusions, innovating diversification of the revitalization and utilization model, strengthening the homestead policy and promotion of revitalization and utilization mode and optimizing all aspects of revitalization and utilization model according to local and household conditions to help farmers increase income. It is the key to enhance farmers’ willingness to choose the homestead revitalization and utilization mode and promote the revitalization and utilization of homestead.
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    Study on the high quality development path of agriculture in Shaanxi province based on entropy method
    LU Dong-ning, PANG Chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 152-156.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.030
    Abstract （393）      PDF （1580KB）（220）       Save
    The evaluation index system of high-quality agricultural development in Shaanxi province was constructed with five dimensions, which including industrial structure, green ecology, industrial benefit, scientific and technological innovation and modernization level. Taking 2009—2018 as the research period, the entropy method was used to evaluate the high-quality agricultural development level in Shaanxi province, and the obstacle degree model was used to diagnose the factors hindering the high-quality agricultural development in Shaanxi province. The results showed that the high quality level of agriculture in Shaanxi province was characterized by fluctuating growth. From all dimensions, the industrial efficiency and modernization level had increased obviously, but there was still room for improvement. Green ecology, industrial structure and scientific and technological innovation were the main shortcomings of high-quality agricultural development in Shaanxi province. Finally, some suggestions were put forward around the main problems that restrict the high-quality development of agriculture in Shaanxi province.
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    Research on the impact of housing resettlement on the subjective well-being of rural disaster migrants：Based on the empirical evidence of hurricane disaster resettlement in Yancheng city
    LI Yi, FENG Xuan-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 157-162.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.031
    Abstract （341）      PDF （2938KB）（160）       Save
    Taking rural disaster resettlement migrants as the research objects, based on 256 questionnaires of 17 wind disaster concentrated resettlement communities in Yancheng city, by using orderly Logistic regression model, 8 variables were selected from two aspects of resettlement housing conditions and resettlement community environment, and the influencing mechanism of housing resettlement on the subjective well-being of disaster migrants was analyzed. The results showed that the self-evaluated subjective well-being of most migrants was at a medium or above level; from the perspective of resettlement housing conditions, the way of housing allocation, housing quality, housing area were significantly and positively related to the subjective well-being of immigrants, while housing expenditure and the subjective well-being of disaster migrants were significantly negatively correlated; from the perspective of the resettlement community environment, community facilities and community participation had no significant impact on the subjective well-being of disaster migrants, community health and cadre-group relationship significantly affected the subjective well-being of the migrants and showed a positive correlation.
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    Research on the expenditure structure of agriculture-related funds and agricultural growth in Guangdong province
    SHAO Zhuo, MEI Shuang, GUO Yu-xuan, CHEN Shao-yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 163-168.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.032
    Abstract （373）      PDF （1673KB）（99）       Save
    In order to further promote the overall integration and reform of agriculture-related funds of Guangdong province and guide the cities and counties to optimize the expenditure structure of agriculture-related funds, improve the use efficiency of agriculture-related funds, effectively promote the steady growth of the total agricultural output value in various regions, and accelerate the realization of agricultural and rural modernization,on the basis of the overall integration and reform of agriculture-related funds in Guangdong province, this study analyzed the impact of the expenditure structure of agriculture-related funds on the growth rate of total agricultural output value in all cities of Guangdong province in 2019 by using the method of clear set qualitative comparative analysis, and summarized three effective expenditure structures of agriculture-related funds, which including the environmental remediation type, the forestry construction type and the balanced type. It also emphasized the importance of low output, low infrastructure investment and high environmental improvement investment to the current agricultural development in various cities of Guangdong province. Therefore,under the new situation, Guangdong province must break through the old mode of agricultural development, and explore the new ecological agricultural industry development path by optimizing the financial expenditure structure.
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    Evaluation method of soil and water conservation quality of water diversion project from the Yellow River in Jiaodong agricultural irrigation area
    SUN Chong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 169-172.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.033
    Abstract （390）      PDF （1568KB）（222）       Save
    Aiming at the regional soil and water loss problems caused by the water diversion project from the Yellow River in Jiaodong agricultural irrigation area, the evaluation method of soil and water conservation quality of the water diversion project from the Yellow River in Jiaodong agricultural irrigation area was put forward, which provided scientific basis for the relevant departments to formulate soil and water conservation rectification measures. Due to the significant relativity between soil and water conservation and soil erosion, the current situation of soil and water conservation in the area involved in the project was analyzed from these two aspects. Based on the close correlation among soil erosion, soil and water conservation and soil quality, the soil and water conservation quality was described by soil quality, and the evaluation model of soil and water conservation quality was constructed. According to different evaluation index weights and membership degrees, the soil quality index scores of different regions in Jiaodong agricultural irrigation area were determined, and the evaluation results of soil and water conservation quality were obtained. The results showed that the quality of soil and water conservation in Binzhou city and Yantai city were at a low level, and the quality of soil and water conservation in Weifang city was at a lower middle level, and according to the current situation of low quality of soil and water conservation, this study put forward some strategies to improve the quality of soil and water conservation.
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    A study on the dilemma and countermeasures of social relations reconstruction of poverty alleviation migrants
    SHI Shi, DONG Ming, MU Han, LIN Xin-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 173-178.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.034
    Abstract （351）      PDF （1578KB）（186）       Save
    The resettlement of poverty relief migrants should make comprehensive arrangements in production, life and community governance to help them get rid of poverty.However, there was also the objective fact that people live in different places and the separation of land and residence, and the social relationship between poverty alleviation and immigrants was broken and reconstructed.To relocate the relocation placement of urbanization as an example, through combing the literature, combined with empirical experience, using the theory of social construction analysis town for aiding the poor immigrants face breaking the status quo, social relations and analysis from the Angle of the individual, community, government its internal mechanism, put forward the psychological intervention, resource protection, and community connection targeted Suggestions.
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    Research on the path of literature and art poverty alleviation in northern Shaanxi from the perspective of precision poverty alleviation
    HUANG Rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 179-181.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.035
    Abstract （362）      PDF （1523KB）（182）       Save
    Through the analysis and research of literature and art poverty alleviation activities in northern Shaanxi, combined with the characteristics of local culture such as regionalism, diversity and systematization, this paper summarized the comprehensive situation of literature and art poverty alleviation in northern Shaanxi, so as to explore a more scientific and accurate way of literature and art poverty alleviation in northern Shaanxi with the characteristics of folk art and culture and humanistic folk customs.
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    Comparative study on projection image and perception image of intangible cultural heritage tourism destination
    LI Jiang-min, LI Xin-wei, WU Qing-qing, ZHAO Qing-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 182-188.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.036
    Abstract （516）      PDF （6438KB）（689）       Save
    The tourism destination image is constructed by projection image and perception image. It is of great significance to analyze the difference between projection image and perception image of intangible cultural heritage tourism destination for improving the image of intangible cultural heritage tourism destination and promoting the quality and efficiency of intangible cultural heritage tourism. Taking Suzhou city as a case study, which was rich in intangible cultural heritage, the study explored the differences between the projection image and perception image of intangible cultural heritage tourism destination with the help of Rost CM 6 software. The results showed that,① the projection image and perception image of intangible cultural heritage tourism destination include intangible cultural heritage culture, intangible cultural heritage tourism space, intangible cultural heritage tourism experience, cultural atmosphere and infrastructure. Compared with the perception image, the projection image pay more attention to intangible cultural heritage tourism experience and cultural atmosphere, but less attention to infrastructure; ② both the projection image and perception image took the local intangible cultural heritage culture as the core, but there were differences in the content composition of the sub core and the edge layer; ③ in addition, landscape and infrastructure were the main factors causing tourists′ positive emotions, and tourists′ negative emotions were concentrated on the tourism environment; ④ the main reason for the difference was that the demand of suppliers and tourists was different, and the information of both sides was asymmetric.
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    The evolutionary game analysis of stakeholders behind land finance
    HOU Wei-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 189-194.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.037
    Abstract （371）      PDF （2078KB）（184）       Save
    Behind land finance was a large number of land expropriation by local governments, which caused multi-interest conflicts. This study constructed the game model of relevant stakeholders, identified the interest relationship between government departments and land-lost farmers and the evolutionary stability strategy, and carried out numerical simulation and analysis of relevant influencing factors. The results showed that, ①when the net income of central government regulation was higher than the cost, the income of local government legal land expropriation was higher and land-lost farmers were compensated, the evolutionary stability strategy of the game system was supervision-legal land expropriation-acceptance of land expropriation; ② the rise of the central government's regulatory cost will weaken the tendency of regulatory strategy choice; ③ the increase of income from illegal land expropriation of local governments will weaken the tendency to choose legal land expropriation strategies;④the reduction of the cost of protecting the rights of land-lost farmers will drive the land-lost farmers to choose the strategy of resisting land acquisition. Therefore, it was of great significance to reform the land expropriation system, increase the punishment of illegal land expropriation, standardize the behavior of local government and construct a smooth channel for land-lost farmers to protect their rights to alleviate the land expropriation conflicts.
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    The placement of nostalgic and the inheritance of folk culture from the perspective of 24 solar terms
    ZHOU Li, SUN Fen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 195-197.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.038
    Abstract （452）      PDF （1516KB）（266）       Save
    The 24 solar terms are the knowledge system formed by ancient people through observing the movement of celestial bodies and combining with the transformation laws of geography, climate and phenology. It is of great practical significance to protect, inherit and innovate the folk culture represented by the 24 solar terms. It not only contributes to the activation and development of the folk culture, but also helps to connect the fragmental nostalgic memory of modern people and promote people’s recognition of the traditional folk culture. It can also help arouse people’s tracing back the history of cultural heritage, deeply dig the traditional cultural wisdom contained in it, and consciously contribute their own strength to rural revitalization.
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    Research on evaluation of rural ecological civilization construction in Jinan based on farmers’ satisfaction
    HAN Lin-juan, LIU Hao, ZHOU Hai-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 198-202.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.039
    Abstract （398）      PDF （1570KB）（235）       Save
    Rural ecological civilization construction is an important part of achieving rural revitalization strategy,which is the premise of realizing sustainable development in rural area and building a beautiful countryside. As the participants and final beneficiaries of rural construction, farmers’ satisfaction is an important standard to measure the level of rural ecological civilization construction. Taking farmers in Jinan city Shandong province as the research object, the satisfaction index system of rural ecological civilization construction was constructed, the importance of the index was analyzed by using factor analysis method. The results showed that farmers had a relatively high satisfaction with family economy construction, rural ecological system and ecological environment construction, rural living environment construction and rural public transportation construction, but the satisfaction with rural ecological tourism construction, rural ecological agriculture and ecological industry construction was relatively low. And for the problem of low satisfaction, it was suggested that the construction of rural ecological civilization should focus on protection.
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    Research on the logic and path of rural cultural space reconstruction from the perspective of rural revitalization
    HE Jie, PAN Yue
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 203-208.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.040
    Abstract （357）      PDF （1866KB）（351）       Save
    Through the analysis of the internal relationship between the macroeconomic background and the national strategy, it is pointed out that the strategy of rural revitalization has its inherent logic and inevitability. From this perspective, cultural revitalization, as its spiritual core, has a great positive effect on the systematic development of rural areas. Based on the three attributes of the rural cultural space, this study analyzed the elements of the rural cultural space from the micro level, and then put forward the macro structure of the rural cultural space system. Based on this framework, it also analyzed the development dilemma of rural cultural space, proposed the corresponding reconstruction path choice, in order to build a “cultural community” of “modern homesickness+landscape pastoral” pattern integrating contemporary local value identity and sense of belonging under the contradiction of multiple “cultural fields”.
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    Research on the integrated development paths and countermeasures of new urbanization and rural revitalization in China
    MA Li, PAN Ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 209-212.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.041
    Abstract （1098）      PDF （1526KB）（353）       Save
    The relationship between new urbanization and rural revitalization is inseparable, and urban-rural integration is indispensable for the development of the new era. The literature analysis method was used to analyze the significant practical significance of the integrated development of new urbanization and rural revitalization and the factors restricting urban and rural integrated development, which including the serious regional differentiation of urban-rural integrated development, the imbalance in the allocation of urban and rural infrastructure and public service facilities, negative impact of the dual household registration system and the land system. Finally, the integrated development paths of new urbanization and rural revitalization in China were put forward, and countermeasures were proposed for these restrictive factors, in order to provide theoretical reference for the integrated development of urban and rural areas in China.
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    Evaluation and development countermeasures of the fusion effect of agricultural festivals in Yantai city under the strategy of rural revitalization
    GUO Ruo-lin, ZHANG Yi-ran, ZHANG Zi-yuan, CUI Xian, CONG Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (16): 213-217.   DOI: 10.14088/j.cnki.issn0439-8114.2021.16.042
    Abstract （390）      PDF （1542KB）（224）       Save
    Under the rural revitalization strategy, agricultural festivals can effectively promote the integration of agriculture and tourism, production and village, urban and rural development. Based on the development status of the five types of agricultural festivals in Yantai city, using questionnaire survey and comparative analysis, from the perspectives of industry, talent, culture, organization, and ecology, the evaluation index system and the fusion effect values were established. The advantages and disadvantages of the five festivals were explored, the importance of local cultural inheritance and cultural industry construction were strengthened, and the long-term development countermeasures of the five types of festivals were put forward accordingly.
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    A review of tourism research in rural construction in China：Visual analysis based on CiteSpace
    LIU Min-kun, WEI Qian-mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 5-7.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.001
    Abstract （412）      PDF （3202KB）（286）       Save
    Taking CNKI as the data source, with the help of CiteSpace visualization software, this paper drew the knowledge map of tourism research in China's rural construction, and analyzed the annual number of documents, authors, institutions and keywords. The result showed that the number of documents issued increases year by year and was greatly affected by the policy; The relationship between the authors was weak, and only a few stable cooperation teams had been formed; The issuing institutions were scattered in geographical distribution and lacked of close academic cooperation; The research content covered the relationship between tourism and rural construction, rural economic revitalization, sustainable development, rural governance and urban-rural development. From the research content, the policy orientation was obvious, emphasizing sustainable development and the improvement of rural comprehensive benefits. However, the concept and basic theory, the logical mechanism and dynamic mechanism of tourism promoting rural construction, the development modes of different regional types and the positioning of tourism in rural construction need to be further studied.
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    Research status and prospect of rural domestic waste governance mechanism
    YAN Ying, ZHAO Zhi-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 12-15.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.002
    Abstract （473）      PDF （1551KB）（204）       Save
    From the aspects of source classification and influencing factors, governance mode, governance strategy and path of rural domestic waste, this paper combs the latest research results at home and abroad, analyzes the research limitations, and puts forward some suggestions on the future path of rural domestic waste governance research in China.
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    Utilization in maize hybrid breeding of maize inbred line 01A3 and sister lines A01,Xin6 and their derivative lines
    LIU Jing-wei, ZHOU Lian-dong, WEI Feng, WANG Ling-yan, WANG Rui, ZHANG Rui-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 16-18.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.003
    Abstract （527）      PDF （1536KB）（398）       Save
    01A3 is an excellent maize inbred line bred by Xinxiang Academy of Agricultural Sciences, Henan Province. It has the characteristics of high combining ability, good agronomic traits, good firmness, and mid-early maturity. A series of derivative lines were selected based on 01A3, and more excellent corn hybrids were selected using 01A3 and sister lines A01, Xin6 and their derivative lines. 01A3 also has defects and can be improved and reused.
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    Effects of variety and planting density on main agronomic characters and yield of Sorghum bicolor
    HAN Yong-liang, CUI Jiang-hui, LUO He-yue, FANG Lu-bin, CHANG Jin-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 19-22.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.004
    Abstract （430）      PDF （1585KB）（191）       Save
    To explore the suitable varieties and density of Sorghum bicolor in central and southern Hebei province, the varieties Nongdahong 3, self selected Dwarf 1 and Hongmaoliang 6 selected by Hebei Agricultural University were used as experimental materials. The two factor complete random design was adopted, and three density treatments were set up to compare the three varieties. The results showed that the yield of Nongdahong 3 was significantly higher than that of other varieties; The planting density was 120 000 plants/hm2, and the yield level was up to 10 270.50 kg/hm2. Nongdahong 3 is suitable for planting in central and southern Hebei province. The suitable density of sorghum is about 120 000 plants/hm2, which can achieve high yield.
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    Effects of the cowpea yield under different fertilization modes in Pearl River Delta
    ZHANG Xiang-hui, MA Xiao-xiao, DONG Bin, CHANG Juan-xia, ZHANG Xiao-qin, WANG Bing, LIN Ying-yin, SUN Jian-qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 23-26.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.005
    Abstract （430）      PDF （1563KB）（152）       Save
    Using field cultivation method, the experiment was laid out in a randomized complete block design （RCBD） with 11 treatments replicated 3 times, including N0P0K0, N0P2K2, N0.5P2K2, N1P2K2, N1.5P2K2,N2P2K2, N2.5P2K2, N3P2K2, N2P0K2, N2P2K0, MN2P2K2, to compare the differences in cowpea yield and other indexes. The results showed that with the same investment of phosphate and potash fertilizer, yield, net income and cowpea/straws（c/s） showed increasing tendencies divided by N1.5. When N∈（1.5,2.5）, nitrogen rate is negatively correlated with c/s. When N∈（2.5,3], nitrogen rate was positively correlated with c/s. The yield, net income and c/s reached maximum as the MN2P2K2 treatment. The experiment proved that the most influential factor of cowpea yield was nitrogen, phosphate and potash fertilizer were not obvious. The application of organic fertilizer and chemical fertilizer increased cowpea yield most influentially.
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    Effects of different irrigation intensities and irrigation methods on soil moisture and soil composition in Yellow River irrigation area
    LI Dong-yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 27-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.006
    Abstract （453）      PDF （1795KB）（250）       Save
    In order to improve the irrigation efficiency of water conservancy projects in the Yellow River irrigation area, the effects of different irrigation intensities and different irrigation methods on soil moisture and composition were discussed in the Yellow River irrigation area of Gansu province. The results showed that the soil water content was low in the Yellow River irrigation area in Gansu province. The highest surface soil water content in 0~10 cm before irrigation was 10.18%, and the water content in 6~10 cm was higher. With the increase of irrigation water, the soil water content in the experimental area increased. Before irrigation, the proportion of sand, silt and clay in 0~2 cm soil was 2.59%, 80.37% and 17.04% respectively. With the increase of irrigation intensity and soil thickness, soil sand and silt in the experimental area increased and decreased. Surge irrigation reduced irrigation water and improved irrigation uniformity and soil moisture content.
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    Spatial variability and topography factors affecting soil nutrients in hilly area based on GIS and RDA
    SONG Fa-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 31-35.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.007
    Abstract （449）      PDF （2969KB）（524）       Save
    Using statistics and RDA analysis, the spatial variability of soil nutrients in the hilly area of the Dabie Mountains was studied, and the distribution characteristics of its topographical factors were discussed. The results showed that moderate level of spatial variability occurred in 6 nutrients contents in the research region, and the variability of available phosphorus, available potassium and available nitrogen were stronger than total nitrogen, total phosphorus and organic matter. The nugget/still ratios were 59.05% for available and which could be modeled with the Exponential model. The nugget/still ratios were 20.25% ,44.81% for total phosphorus, available potassium respectively, which could be modeled with the spherical model. While nugget/still ratios were 43.10%,20.41% and 48.57% for organic matter, total nitrogen and available nitrogen respectively, which could be modeled with the Gaussian model. Total nitrogen and total phosphorus showed strong spatial autocorrelation, while other nutrients showed moderate spatial autocorrelation. Quantitative analysis showed that 11 factors could explain 54.7% of spatial variability in this nutrient, 44.6% of which was explained by level I terrain factors, 10.1% by level II terrain factors. Among of all topography factors, elevation, slope aspect and slope position could explain15.2%,14.1% and 7.1% of soil nutrients variability, respectively. The factors were significantly correlated with soil available potassium at P<0.05 level, which were the main factors affecting the spatial distribution of soil nutrients in the in hilly area.
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    Analysis of land use change and driving force in Liuzhou urban area
    LIN Xiao-nan, LU Ru-cheng, HUA Cui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 36-41.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.008
    Abstract （411）      PDF （4117KB）（458）       Save
    The land use types were divided into six categories： cultivated land, forest land, grassland, water area, construction land and unused land, and the land use change in Liuzhou urban area, Guangxi from 2010 to 2018 was studied. Combining qualitative and quantitative analysis, ten factors, including the total population at the end of the year, the regional GDP, the GDP of the primary industry, the GDP of the secondary industry, the GDP of the tertiary industry, fiscal revenue, the total industrial output value, grain output, investment in fixed assets and the total retail sales of social consumer goods, were selected to analyze the driving force of land use change by using grey correlation degree. The results showed that the main characteristics of land use change in Liuzhou urban area from 2010 to 2018 were the increase of construction land area and the decrease of cultivated land and other land use types. The main driving forces were population and economic growth, food production and policy factors. Based on the research results, some suggestions were put forward to provide reference for the sustainable land use in Liuzhou urban area.
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    Study on the evolution and driving forces of the characteristics of urban and rural construction land in Xiangxiang city
    YANG Wen-ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 42-48.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.009
    Abstract （343）      PDF （4921KB）（198）       Save
    This study selected the relatively fast-developing small and medium-sized city—Xiangxiang city as the research area. Based on the five-phase （2000, 2005, 2010, 2015, and 2020） remote sensing interpretation data, this study analyzed the evolution of urban and rural construction land characteristics and the influencing factors of the evolution of urban and rural construction land characteristics from 2000 to 2020. The results showed that the area of urban and rural construction land was gradually increasing, among which urban construction land was increasing faster than rural construction land; Most of the expansion of urban construction land and rural construction land comed from cultivated land and forest land; The expansion of urban construction land and rural construction land was unhealthy, and the population growth rate of urban and rural areas was slower than the expansion rate of construction land; The change of urban construction land was largely affected by the change of urban population and industrial structure,the change of rural construction land was mainly affected by the non-agricultural change rate of population, the change of rural fixed investment and industrial structure.
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    Effects of surface temperature introduced into CESM model on summer precipitation and annular flow field in East Asia
    JIANG Ying, ZHANG Ming-jun, ZOU Xiao-song, MENG Xiao-wen, YANG Zi-fan, LONG Xiao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 49-53.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.010
    Abstract （428）      PDF （2531KB）（402）       Save
    The surface temperature analysis field was updated to the simulation field of CESM, and the temporal and spatial distribution differences of various physical quantities of summer precipitation field and circulation field in East Asia from 1980 to 2009 were compared between the updated and non updated surface temperature simulation. The results showed that the simulation of surface temperature, precipitation, water vapor flux, zonal and meridional circulation fields of the updated model had been significantly improved, and the correlation coefficient between the updated simulation field and the reanalysis field was significantly higher than that of the unupdated model.
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    Comparison and analysis of two severe convective weather processes in eastern Qinghai in 2017
    TIAN Cheng-juan, ZHANG Ning-jin, MEI Cheng-hong, LIU Xue-mei, XIE Tian-rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 54-58.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.011
    Abstract （328）      PDF （7243KB）（131）       Save
    Based on conventional observation data, NCEP 1° ×1° reanalysis data, two severe convective weather processes occurred in eastern Qinghai province from July 23 to 24, 2017 （referred to as “7.23”） and from July 31 to August 1, 2017 （referred to as “7.31”）were analyzed, and the characteristics of upper and lower environment field, dynamic, water vapor, thermal and convective instability conditions were compared. The results showed that the two severe convective weather processe occurred under the favorable background of large-scale circulation, and the main cause was that the surface cold air diffused southward from the Hexi Corridor and interacted with the southwest warm and humid air in the eastern part of Qinghai. The processes were triggered by dry tongue at 500 hPa, surface dew-point line, convergence line and surface cold front. Both processes were typical configurations of upper level divergence and lower level convergence, “7.31” was dominated by oblique ascending movement, and the water vapor convergence in the lower layer of “7.23” was stronger than that of “7.31”. There were two water vapor belts in the two processes, one was the water vapor belt carried by the southeast airflow on the west side of the subtropical high, and the other was the water vapor belt carried by the cold air in front of the upper trough. There was a high-value center of 350 K θse near 500 hPa, and a tilted intensive belt of θse near 38°N. This frontogenesis zone was more conducive to the development and maintenance of short-term heavy precipitation.
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    Analysis of effect of rapid infiltration and wetland integrated system on rural domestic sewage
    SU Shi-hua, LIU Sheng-feng, WU Chang-zhi, FANG Rong-jie, GUO Pan, WEI Cheng-fang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 59-65.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.012
    Abstract （348）      PDF （2538KB）（173）       Save
    In order to study rural domestic sewage treatment technology, a rapid infiltration and wetland integrated system was established in Xi'an Village, Lingtian Town, Lingchuan County, Guilin City, and the NH3-N, TN, TP, and COD were monitored from April 2019 to April 2020. Pollution removal effect, the relationship of removal effect between temperature and season. The results showed that the system had obvious removal effects on NH3-N, TN, TP and COD in rural domestic sewage, and the removal rates were 87.75%, 78.88%, 93.94% and 89.24%. The sewage discharge complies with the first level type A standards of GB 18918—2002. The removal rates of NH3-N, TN, TP and COD were significantly positively correlated with air temperature at the level of 0.01, and COD was greatly affected by air temperature. The removal effect of NH3-N, TN, TP and COD in flat water period was better than that in high water period and better than that in low water period.
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    Ecological remediation base material prepared from river sediment
    WANG Lan, LI Jia, DAI Qun-wei, GUO Jun, WANG Yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 66-69.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.013
    Abstract （415）      PDF （1582KB）（230）       Save
    The content of organic matter in river sediment is high, which pollutes water body and easily causes secondary pollution. In order to make harmless use of sediment, the river sediment was used as raw materials to prepare the ecological restoration base material, and the preparation technology and performance of the base material were discussed. The results showed that the optimal ratio was cement 5%, sediment 14%, sandy loam 73%, straw pulverized material 2%, water 4% and bacterial liquid 2%. The flexural strength, compressive strength, porosity and water absorption of the ecological remediation base material were 0.65 MPa, 1.185 MPa, 17.46% and 13%, which had certain strength and could be used for slope protection and met the nutritional needs of plant growth.
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    Comparison test on agronomic traits of different garlic cultivars
    FU Jia-ping, GUO Feng-ling, WU Jin-ping, ZHOU Jie, XIA Qiu-mei, QI Chuan-dong, CHEN Lei-fu, JIAO Chun-hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 70-73.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.014
    Abstract （529）      PDF （1749KB）（278）       Save
    The comparative test on single plant and bulb weight of thirteen collected garlic cultivars was conducted to screen suitable Allium sativum varieties for local growing respectively, and cluster analysis was performed. The results showed the highest weight per plant and bulb which have better disease resistance should be local popularized, weight per plant and bulb which was suitable for native cultivaring. The correlation analysis showed that the plant height, pseudostem length and diameter, maximum leaf length and width had extremely significantly positive correlation with the plant weight, the clove weight, bulb diameter, bulb height and clove back width had extremely significantly positive correlation with the bulb weight. The results could provide scientific basis for garlic variety selection.
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    Effect of AM fungus on camphor seedling growth and soil nutrients
    ZHAO Min, LIU Hong-ling, DENG Qi-zhang, YANG Rui-yu, DAI Lin, CHEN Ying, WU Ding-lian, WANG Wen-jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 74-77.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.015
    Abstract （395）      PDF （1753KB）（120）       Save
    Three treatments of non-inoculated control（CK）, inoculation with Glomus mosseae （G.m） and inoculation with Glomus intraradices （G.i） were used for potting test. The dry matter quality of roots, stems and leaves of seedlings and the contents of potassium and phosphorus in soil of seedlings were measured three months later. The results showed that after three months, the infestation rates of CK, G.m and G.i were 0, 32.38% and 29.97%, respectively, which increased the biomass of G.m and G.i seedlings by 52.9% and 32.8% compared with that of CK. G.m treatment increased 27.4% effective phosphorus content and 38.3% effective potassium content, and G.i treatment increased 20.8% effective phosphorus content and 23.1% effective potassium content, respectively. Both species of AM fungi could successfully infect seedlings of camphor, increase the content of effective potassium and effective phosphorus in the soil and promote plant growth, and Moses Ballooney was more effective in promoting the growth of seedlings and activating soil potassium and phosphorus.
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    Integration and demonstration of cultivation techniques for edible fungi from agricultural and forestry solid wastes
    XIAO Neng-wu, HUANG Zhi-ping, CHANG Kun, HUANG Jin, CAI Jing, LIU Jie, ZHANG Dan-dan, GONG Shi-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 78-81.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.016
    Abstract （404）      PDF （1664KB）（263）       Save
    Aiming at the characteristics of agricultural, forestry and specialty solid wastes that can be used as the substrate for edible fungi, whose resource utilization technology is integrated, demonstrated and promoted,it is hoped to provide a reference for the green and efficient development in Danjiangkou water conservation area. Integrating the methods of recovering, converting, and utilizing of agricultural, forestry and specialty solid wastes, it could put forward the idea of efficient utilization technology and popularization of integration, demonstration and extension of the edible fungi substrate utilization technology. The integration, demonstration and extension of the edible fungi substrate utilization technology of agricultural, forestry and specialty solid waste can reduce the pollution to the water environment to a certain extent, and increase the farmers' income by 320 million yuan in the project area, which could provide a way for the green and efficient development of agriculture in Danjiangkou water source conservation area.
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    Some thoughts on the high quality development of edible fungi industry in Shiyan city
    WANG Wei, YANG Chao-hui, LAN Yu-mei, GONG Shi-fei, WU Xun-shan, GUO Yuan-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 82-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.017
    Abstract （453）      PDF （1541KB）（581）       Save
    This paper introduces the strong development momentum of Shiyan edible fungi industry in recent five years, and the market system with initial scale, and analyzes the optimistic production and marketing situation of Shiyan edible fungi industry under the test of new epidemic situation. In 2020, in order to cope with the opportunities and challenges brought about by the transformation and convergence of industrial poverty alleviation and rural revitalization, the paper puts forward measures such as appropriate scale development, enhancement of product competitiveness, construction of whole industry system, et al, through breaking the topic in the development idea of "stabilizing quantity, improving quality and increasing so as to implement the high-quality development mode.
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    Research on the adaptive protection and revitalization of ancient villages under urbanization：A case study of Fentian village,Conghua of Guangdong province
    TANG Jiao, XUN Yi, LIU Yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 85-88.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.018
    Abstract （465）      PDF （2973KB）（299）       Save
    Taking Fentian village of Conghua, Guangdong province as example, its elegant natural environment and rich cultural heritages and regional strengths of suburban are analyzed, so as to configure ancient villages. The strategy of adaptive protection and revitalization is proposed and to provide references for protecting and developing ancient villages.
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    Analysis on landscape pattern of Han Chang'an City relic based on RS and GIS technique
    XIA Yu-jia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 89-92.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.019
    Abstract （441）      PDF （1570KB）（264）       Save
    Taking Han Chang'an City relic as an empirical area, based on the Landsat TM remote sensing data collected in 2018 and 2020, and combining RS and GIS technique, to analysis the landscape pattern, aiming to provide more scientific statistic for the planning of a historical site. The study divided the relic area into six parts. Landscape pattern analysis method is used to plan and study the landscape of the Han Chang'an City relic in Xi'an following the data of GIS（Geographic Information System） and RS（Remote Sensing）. The index is selected from the perspective of planning practice with factor analysis, and 11 landscape indexes are selected for empirical research and program evaluation. The results shows that the shape of road and water blocks is the most complex; the distribution of grassland embedded blocks is the most scattered, and the connection with other types of embedded blocks is the closest. The closer connection between the road and woodland blocks makes the site a perfect ecological corridor.
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    Effects of Clostridium butyricum CB1 preparations on production performance,intestinal morphology and microflora of broilers
    HE Ju, LI Xiao-wen, CUI Wei-tao, GUO Jie, WANG Chun, XIAO Yun-cai, LI Zi-li, ZHOU Zu-tao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 93-97.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.020
    Abstract （455）      PDF （1658KB）（197）       Save
    This study was designed to investigate the effects of Clostridium butyricum CB1 preparations and composite probiotics added to the diets on broiler production performance, intestinal morphology and structure of microbial community. A total of 15 000 one-day old of Cobb500 broiler chickens were randomly divided into 5 groups, with 3 replicates in each group and 1 000 chickens in each replicate, they were fed with：group A （basal diet）, group B （basal diet supplemented with 50 g/t chlortetracycline）, group C1, C2 and D were basal diets supplemented with 100 g/t C. butyricum CB1 preparation, 200 g/t C. butyricum CB1 preparation and 200 g/t C. butyricum CB1 preparation and Bacillus subtilis preparation, 42 days trial period. The test results showed that broilers in antibiotic （chlortetracycline） group B and group C1, C2 and D fed with C. butyricum CB1 preparation could increase the average body weight in different levels. The average daily weight gain of groups C1, C2 and D from 1 to 21 days were higher than that in antibiotic group B （P<0.05 or P<0.01）, and the average daily gain of group D from 1 to 42 days was similar to that of group B （P>0.05）. During the test period, the feed conversion ratio and death rate of group C2 and group D was obviously below basal diet group A and antibiotic group B, and of these the height of cecum villus and VH/CD ratio of group D was the highest. Adding C. butyricum CB1 to the diet could significantly promote the proliferation of Lactobacillus and Bifidobacterium in ileum and cecum of broilers. It can be seen that the C. butyricum CB1 complex bacteria preparation has a growth-promoting effect equivalent to that of chlortetracycline. C. butyricum CB1 preparation added in diets can significantly increase the height of intestinal villi and the VH/CD value, effectively promote the growth performance of broilers, enhance immune function, promote the development of intestinal morphology, and improve intestinal flora.
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    Effect of Jianpi Yiqi Koufuye on small intestine propulsion in mice and analysis of its mechanism
    LIU Qiao-ming, XIE Sheng, FENG Jian-fang, WANG Li-ning, CHEN Ya-lu, LIN Guo-biao, HUANG Xiao-yan, LIANG Jian-qin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 98-103.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.021
    Abstract （526）      PDF （7521KB）（59）       Save
    To investigate the effects of Jianpi Yiqi Koufuye on functional dyspepsia and its mechanism of action. Sixty KM mice, half male and half female, were randomly divided into blank group, model group, and Jianpi Yiqi Koufuye （high, medium, low, and very low dose） group, administered orally for 4 weeks, and determined by the ink method small bowel advancing rate. Screen disease targets through GeneCards and Drugbank databases. Search BATMAN-TCM for the chemical constituents and their targets in Chinese herbal medicines. Through the String database and Cytoscape software, a target interaction network was constructed, key targets were extracted, and GO, KEGG enrichment analysis, and network visualization analysis were performed. Virtually screen compounds and targets related to drug efficacy through Discovery Studio and analyze their binding patterns. The Jianpi Yiqi Koufuye group significantly improved the small bowel advancing rate of the mice compared with the model group （P<0.01）. A total of 194 chemical constituents and 703 chemical constituent targets were screened from the prescription. There were 601 targets for functional dyspepsia.A key network consisting of 104 targets, including TNF, INS and MAPK1, was extracted from the target network, which was involved in the regulation of the secretion of peptide hormones, protein phosphorylation and other biological processes, as well as the regulation of TNF signaling pathway, IL-17 signaling pathway, cAMP signaling pathway, cGMP-PKG and Ca2+ signaling pathway. Molecular docking results showed that in 194 chemical components, niacin and phenylalanine contained in codonopsis codonopsis and chicken gold bound with FOS, EGFR, CREB1 and NOS3 proteins in Ca2+ signaling pathway and cAMP signaling pathway by hydrogen bond and van der Waals force. Jianpi Yiqi Koufuye promotes the small intestine's advancing function in mice, and its mechanism may be related to the expression of FOS, EGFR, CREB1, and NOS3 in the cAMP signaling pathway and Ca2+ signaling pathway, which are involved in the regulation of nicotinic acid and phenylalanine. Jianpi Yiqi Koufuye can be used to treat functional indigestion.
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    Investigation and evaluation of bird resources on three highland lakes in central Yunan province
    LI Qiu, YANG Li-yun, DENG Kai-hong, LI Hong-mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 104-110.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.022
    Abstract （472）      PDF （1613KB）（386）       Save
    In this study, the partition counting method, line transect method and sample point method were used, and the bird resources of three highland lakes and their surrounding areas in central Yunnan province were investigated and evaluated. The result shows that a total of 67 species of birds were observed and recorded in three plateau lakes in Yuxi, which belongs to 34 families and 13 orders. Among them, There are 28 species of oriental realm, 15 species of palearctic realm, 24 species of generalists; 47 species of resident birds, 20 species of migratory birds （13 species of winter migratory birds and 7 species of summer migratory birds）. There are 46 species of birds in Fuxian Lake, 37 species in Xinngyun Lake, 51 species in Qilu Lake, The highest diversity of birds is found in the Qilu Lake area. The study provides guidance and reference for strengthening the protection of bird resources in the three highland lakes and its surrounding areas.
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    The effects of different drying methods on nutrient content and antioxidant activity of Paeonia ostii ‘fengdan' flowers
    LI Pei-xuan, CHEN Fa-zhi, LI Xiu-li, ZHAI Jing-hua, WANG Zhan-chang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 111-115.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.023
    Abstract （413）      PDF （1796KB）（191）       Save
    In this study, Paeonia ostii ‘fengdan' flowers were used as the material. The Paeonia ostii ‘fengdan' flowers were dried by sun drying, hot air dying （40、60、80 ℃）、 microwave drying （low heat, medium heat, medium-high heat） and vacuum freez-drying. After tested by these four methods, the content of reducing sugar, protein, VC, flavonoids and polyphenols of Paeonia ostii ‘fengdan' flowers was determined. Then select 4 antioxidant indicators：DPPH scavenging abilities, hydroxyl scavenging abilities, nitrite scavenging abilities and reducing abilities to evaluate antioxidant activity of flower extract dried by these methods. The results showed that the polyphenol content of these flowers treated by vacuum freeze-drying is 11.71 mg/g, and the flavonoid content is 11.85 mg/g, which is significantly higher than any other samples processed by other drying methods. The reducing sugar content of freeze-drying treatment is 23.79%, which is not significantly different from 60 ℃ hot-air drying treatment, and is significantly higher than other drying treatments; the Paeonia ostii ‘fengdan' flower protein content of vacuum freeze-drying treatment is 63.87 mg/g, only second to sundring samples. Under the same concentration,when Paeonia ostii ‘fengdan' flower extract is processed by vacuum freeze-drying, it has the strongest DPPH scavenging abilities, hydroxyl scavenging abilities, nitrite scavenging abilities and reducing abilities of the potassium ferricyanide. Different drying methods have great effects on nutrient content, active ingredient content, and antioxidant activity of Paeonia ostii ‘fengdan' flowers. The Paeonia ostii ‘fengdan' flower protein, polyphenols, flavonoids and polyphenols processed by the vacuum freeze-drying process are high in content, and the nutrient and active ingredient of the Paeonia ostii ‘fengdan' flower are better retained. Vacuum freeze drying is a better way to dry Paeonia ostii ‘fengdan' flowers.
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    Removal effect of five kinds of cleaning methods on four pesticide residues in grape
    LIU Wei, LIU Xing, WANG Yi-duo, YANG Xiao-feng, YIN Quan, ZHANG Fu-li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 116-120.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.024
    Abstract （586）      PDF （1690KB）（303）       Save
    To explore the influence of cleaning methods on pesticide residue removal effect of grape in daily life, namely cleaning including rinsing with running water, cleaning after soaking in water, edible salt, sodium bicarbonate solution, fruit and vegetable cleaning solution. The results showed that the average elution rates of metalaxyl、carbendazim and tebuconazole by with running water, cleaning after soaking in water, 2.0% edible salt, 2.0% sodium bicarbonate solution, 2.0% fruit and vegetable cleaning solution were 61.32%,74.85%,73.26%,72.25%,84.64%, respectively, the best cleaning method was 2.0% fruit and vegetable cleaning, followed by water immersion. In the detection of propamocarb, the best cleaning method was water immersion, whose average removal rate was 61.28%, followed by special 2.0% fruits and vegetables detergent cleaning, whose average removal rate was 55.37%. All the five cleaning methods in this study can effectively remove pesticide residues in grapes, the removal rate of pesticide residues was closely related to the cleaning methods, categories of pesticides and grape.
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    Determination of 5 chemical constituents in Sedum aizoon L. by HPLC
    ZHANG Yan, DING Fang-xia, ZHANG Jian-yong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 121-124.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.025
    Abstract （339）      PDF （2003KB）（164）       Save
    To establish a HPLC method to simultaneously determine the content of 5 compounds in Sedum aizoon L. and use single factor and orthogonal experiments to select the optimal extraction process. The results showed that the established HPLC method can be used to determine the content of five components accurately at the same time, the concentrations of myricetin, rutin, quercitrin, quercetin and kaempferol in 22~88 μg/mL, 5~20 μg/mL, 18~64 μg/mL, 0.32~1.28 μg/mL, 0.56~2.24 μg/mL have a good linear relationship with the peak area, respectively; the range of recovery rate of 5 compounds was 95.61%~107.38%; and the RSD values was 1.37%~4.60%. The optimal extraction process was 50% methanol, 90 ℃ heating reflux extraction for 30 min.
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    Design and application of family wisdom garden
    WANG Zhi-ran, WANG Jun-feng, ZHOU Zeng-chan, MA Tie, YAO Tao, LAN Li-bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 125-129.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.026
    Abstract （918）      PDF （3652KB）（189）       Save
    In view of the problems of simple structure and low intelligence, studied a new type of home planting cabinet. It consists of LED light source, forced refrigeration system, irrigation system, ventilation system, etc. It can be planted with basil, lettuce and other plants. As a household appliance, it can use self-developed mobile app for irrigation, lighting, ventilation and other operations. The results of cultivation and environmental control test showed that the average growth cycle of leafy vegetables was 40 days, the total water consumption was 63.2 L, the total power consumption was 72 kW·h, and the weight of a single lettuce was 150~200 g. The temperature range of the equipment is 15~25 ℃, and the relative humidity is 45%~65%. The results show that the environmental parameters provided by the equipment can meet the normal growth of leafy vegetables, at the same time, it enriches the types of products on the market, improves the overall technical aquatic products.
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    Situation and countermeasure of the research and application of factory-cultivated tea tree seedling equipment in China
    ZHOU Yang, ZHANG Qiang, CUI Qing-mei, LIANG Jin-bo, DAI Ju-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 130-134.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.027
    Abstract （337）      PDF （7911KB）（213）       Save
    Factory seedling cultivation of tea trees is a key link in tea production, which not only saves the land of greenhouse and shorten the period of seedlings cultivation, but also facilitates intensive management. In this paper introduces the research and application status of labor-intensive equipment in factory seedling production, such as substrate treatment, tea cutting, soil culture in seedling bed, and hole plate cleaning, analyzes the shortage of our country tea factory nursery and put forward corresponding countermeasures and suggestions, in order to the sustainable development of China's tea factory nursery provides some experience and enlightenment.
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    Identification and expression analysis of miR482a in Pinus densata
    WANG Wen-li, ZENG Qian-qian, LIU Yan, QIU Zong-bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 135-138.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.028
    Abstract （285）      PDF （3192KB）（224）       Save
    Taking the gymnosperm Pinus densata as the experimental material, using the Pinus densata miRNA database constructed in the early stage of the laboratory, mir482a related to growth and development was screened by bioinformatics method, and NBS-LRR resistance protein （Unigenes45569） was verified to be the target gene of Pinus densata mir482a by RLM-5′ RACE method. The mir482a precursor sequence of Pinus densata cloned by PCR is 130 bp and can form a stable stem -loop hairpin structure, but the base conservation of its mature sequence is poor. Phylogeny showed that pde-mir482a had a close evolutionary relationship with the gymnosperm Picea europaea. qRT-PCR analysis showed that the expression of pde-mir482a was the highest in roots, followed by in stems. The expression level of target gene Unigenes45569 in roots and stems is relatively low, suggesting that pde-mir482a can participate in the growth and development of Pinus densata by regulating target gene NBS-LRR resistance protein （Unigenes45569）.
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    Study on the coupling and coordinated development of population urbanization and land urbanization in western China
    XU Jing-xian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 139-144.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.029
    Abstract （419）      PDF （1674KB）（101）       Save
    This paper taked 12 provinces in the western region of China as the research object, established the coupling characteristic index system from two aspects of population urbanization and land urbanization, and used entropy method and coupling coordination degree model to visually study the coupling coordination relationship between population urbanization and land urbanization in western region of China from 2013 to 2018. The results show that the overall development trend of urbanization level in the western region of China is good, and the degree of interdependence between population and land is high. The coupling coordination degree is increasing year by year, and the coordinated development trend of population urbanization and land urbanization is good; From the perspective of time series, the population urbanization composite index is always lower than the land urbanization composite index, which shows that the development of population urbanization lags behind, and most provinces, cities （autonomous regions） are in the lag state of population urbanization, and there is the risk of empty city; From the perspective of spatial pattern, the western region of China presents a spatial pattern based on the difference of economic development level, and the types of coordinated development are differentiated according to provinces; By 2018, most provinces, cities （autonomous regions） in western region of China are in the intermediate coordination state, and some provinces, cities （autonomous regions） are in the primary coordination state, and all of them have achieved the promotion of coordinated development type. The coordinated development of population urbanization and land urbanization is in good condition, and the overall level of urbanization in western region of China has been improved.
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    Study on marketing strategy of Jinsixia scenic spot in Shaanxi province based on network attention
    LI Hong-bo, LIU Long-long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 145-148.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.030
    Abstract （445）      PDF （1744KB）（254）       Save
    Internet attention was formed by tourists using the Internet to assist decision-making before traveling. It objectively reflected the needs of tourists and provided a new perspective for scientific research. By using Baidu index statistical analysis platform, this study collected and collated the five-year network attention data of Jinsixia scenic spot in Shaanxi province, analyzed the time distribution, spatial distribution, people distribution and key points distribution of its network attention, and put forward targeted suggestions for the time schedule, market segmentation, marketing content and tourism product planning of scenic spot marketing.
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    Evaluation of the life satisfaction of urban settled farmers based on improved group analytic hierarchy process
    LI Fen-hong, LI Chao, ZHAO Peng-jun, GUO Meng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 149-155.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.031
    Abstract （349）      PDF （1623KB）（162）       Save
    In terms of the actual background of the research, the elementary and secondary selection expert groups are obtained successively by using both the stratified and double sampling of the sampling technique. The absolute difference of the ranking weight vectors of the secondary selection expert group is calculated on the principle of rank preservation, and the unanimous opinions of the expert groups are verified based on the prescribed threshold, to obtain the final expert group and improve the group's evaluation. Taking prefecture-level cities as the research object, the model of hierarchical evaluation on life satisfaction of urban settled farmers is constructed with the consideration of the availability of data. The sample data is collected in Shangluo city, the subjective-objective weight and combined weights are gained by improving the group's evaluation and the entropy weight methods respectively. The index and comprehensive satisfaction values are calculated by using the fuzzy comprehensive evaluation. The results show that the improved group's hierarchical analytic weights and the combined weights have a high ranking consistency. The settled farmers in Shangluo city have the general and basic life satisfaction, providing a reference for the urbanization of the prefecture-level city.
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    Influence of social support on social well-being of rural college students under closed management
    ZHANG Xiao-yun, QI Di
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 156-160.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.032
    Abstract （437）      PDF （1834KB）（282）       Save
    As the backbone of rural revitalization, rural college students' physical and mental health have always attracted much attention. The closed management measures under COVID-19 pneumonia influence the social well-being of rural college students. This paper explored the influence mechanism of rural college students' social well-being during the period of closed management by regression model and structural equation model, and explored the specific influence effect of social support and loneliness in the model under the condition of closed management. The results show that social support can predict loneliness negatively; Social support can significantly affect social well-being; Loneliness has a negative impact on social well-being; Loneliness plays a part of the mediating role in the model of social support and social well-being.
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    The impact of social network on farmers' ecological production behavior：Analysis on the differences of different ecological production behaviors
    WANG Xi-cong, QI Zhen-hong, YANG Cai-yan, LIU Zhe
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 161-167.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.033
    Abstract （385）      PDF （1609KB）（197）       Save
    Based on the survey data of 695 rural households in Hubei province, Hunan province and Anhui province, this study analyzed the impact of social learning, social trust, social interaction and social reciprocity on farmers' different types of ecological production behaviors in social networks by using ordinal logistic regression model. The results showed that,①the degree of adoption of different types of ecological production behaviors by farmers was not high; ②on the whole, social network had a significant positive impact on farmers' ecological production behavior; ③different dimensions of social network had different impact on different ecological production behaviors, social learning and social reciprocity had significant positive impact on increasing the application of biological pesticides, organic fertilizers and reducing the application of pesticides and fertilizers, social interaction had no significant impact on different types of ecological production behaviors, social trust had significant negative impact on reducing the application of pesticides and fertilizers, there was no significant impact on increasing the application of biopesticide and organic fertilizer. Therefore, we should pay more attention to the impact of social network on farmers' ecological production behavior.
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    Reseach on the legal issues of rural land management right transfer under “separation of three rights”
    MOU Le
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 168-173.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.034
    Abstract （439）      PDF （1564KB）（216）       Save
    Under the “separation of three rights”, the land management right is separated from the land contract management right. In order to clarify the nature of the rural land management right, facilitate the transfer and claim of legal rights to a third party, and facilitate the protection of the legitimate rights and interests of the parties. By considering the current situation of land management right transfer, it is found that there are some problems in land management right transfer, such as imperfect registration system, imperfect dispute resolution mechanism, lagging management service and so on. It is suggested to improve relevant supporting laws and regulations, standardize the transfer mode of land management right, strengthen the supervision of land management right transfer, and improve the dispute resolution mechanism, market management service level and social security system, so as to better promote the transfer of land management right and revitalize rural land.
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    Analysis on cooperative innovation decision of small and medium sized agricultural entrepreneurs in Hubei province based on game theory
    ZHANG Zhen-sheng, DENG Jun-rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 174-178.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.035
    Abstract （318）      PDF （1854KB）（143）       Save
    Based on the perspective of game theory, this study analyzed the cooperative innovation decision of small and medium-sized agricultural entrepreneurs in Hubei province, established and analyzed the game model under cooperative innovation. The results show that the agricultural small and medium-sized entrepreneurs in Hubei province can cooperate with each other in innovation, and can also choose school and research institutions as the cooperative object; The government plays a key role in the decision-making of agricultural small and medium-sized entrepreneurs' cooperative innovation; The degree of symmetry of bilateral information and the enthusiasm of agricultural small and medium-sized entrepreneurs' cooperative innovation will have an impact on the final results. Finally, some suggestions are put forward.
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    Research on the value evaluation of human resources in water conservancy institutions
    XU Ming-wei, ZHANG Jie, WANG Ji-gan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 179-187.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.036
    Abstract （318）      PDF （1646KB）（189）       Save
    With the advent of the era of knowledge economy, human resources as the carrier of knowledge has gradually become an important strategic resource for the development of all walks of life. Under the realistic background that the water conservancy industry has became an important infrastructure for national economic and social development, it was of great significance to do a good job in the value evaluation of human resources in the water conservancy industry for the development of the industry, national economic growth and ecological civilization construction. Based on the analysis of the research background and the review of the existing research, this study defined the connotation and multi-dimensional classification of water conservancy talent resources and value, selects water conservancy institutions as the research object, and defines the basic elements of the value evaluation of water conservancy institutions This paper constructed the human resource classification value evaluation model and its two-level subdivision model of water conservancy institutions, and takes a water conservancy institution in Jiangsu province as an empirical case to test the model. The results showed that the actual value of human resources in a water conservancy institution in Jiangsu province was much higher than the expected value, and the professional and technical talented and work skill talents make the largest contribution to the overall value of talents. Finally, this study puted forward some countermeasures and suggestions, such as paying more attention to the distribution of talents' salary, recruitment expenses, training and education expenses, increasing the investment in innovative technology and talents, and strengthening cross unit and cross regional cooperation and exchange.
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    Study on the benefit evaluation index system of meteorological disaster prevention and mitigation services for rainstorm disasters
    DENG Ling, LI Xue-min, ZHANG Si-yuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 188-193.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.037
    Abstract （367）      PDF （1770KB）（211）       Save
    For the meteorological disaster prevention and reduction service of rainstorm disaster, through the expert questionnaire survey, based on the analytic hierarchy process and delphi method, the benefit evaluation index system for meteorological disaster prevention and mitigation services for rainstorm disasters was established, and the weight coefficient of each evaluation index was determined. On the analysis and evaluation data of typical cases of heavy rain weather services in Hunan province in recent years, following the principle of quantification and easy access, the specific evaluation methods for various indicators were proposed. By comprehensively using the evaluation index system and the evaluation method of each index, a trial evaluation of the effectiveness of meteorological disaster prevention and mitigation services was carried out for a typical heavy rain process in Hunan province from June 30 to July 5, 2015. It was concluded that the comprehensive service benefits of meteorological disaster prevention and mitigation of this rainstorm was 0.88, indicating that the service benefit of meteorological disaster prevention and reduction was significant.
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    The follow-up support work for anti-poverty by relocation in Ankang
    ZHANG Xiao-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 194-198.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.038
    Abstract （334）      PDF （1561KB）（214）       Save
    Anti-poverty by relocation is an important measure to win the battle against poverty. The achievements and experiences are summarized and the problems are analyzed from three aspects：Party building, employment and people's livelihood of anti-poverty by relocation in Ankang city,Shaanxi province. Measures for the follow-up support are proposed from three aspects：The construction of party organizations, the employment of the relocated people, and the management and services of the resetting community, to ensure that the relocated people live and work in peace. It is expected to provide reference to consolidate the results of anti-poverty and promote the rural revitalization strategy for Shaanxi and the western China.
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    Research on the development strategy of red tourism in Shangluo under the background of rural revitalization strategy
    WU Ting-ting, DONG Zhen, DU Lin-nan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 199-202.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.039
    Abstract （435）      PDF （1540KB）（320）       Save
    By combing and summarizing the development mode of red tourism, combining with SWOT analysis, this paper studied the development strategy of red tourism in Shangluo city. The results show that the strategic goal of Shangluo red tourism development is positioned as advantage-opportunity （SO） strategy. We should further explore the unique cultural connotation of Shangluo red tourism, combine the natural landscape resources with red resources in Shangluo city, and complement each other. The Shangluo red tourism development strategy has been proposed in terms of planning, raising awareness, increasing investment, improving facilities, and strengthening publicity and marketing efforts.
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    Study on the difference of promotion means of rural revitalization in eastern,central and western Shandong province：Based on the survey data of 395 administrative villages （communities） in Shandong province
    LI Qiu-yun, ZHANG Wu-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 203-208.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.040
    Abstract （430）      PDF （1567KB）（115）       Save
    Shandong province is divided into three regions： East, middle and west. Based on the development status of “five hands” in Shandong province, 407 valid questionnaires of 344 towns （street offices） and 395 administrative villages （communities） of 125 counties （cities and districts） in 16 cities are used to analyze the the differences in the development of promotion means （land scale management, village layout adjustment and land resource integration, beautiful rural construction and rural complex construction） in the east, central and western regions. The results show that the central region has the most remarkable achievements in land scale management and village layout adjustment, the improvement effect of land resources consolidation is obvious in the western region, and the eastern region is better than the central and western regions in beautiful rural construction and rural complex construction.
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    Research on the value and path of poverty alleviation in rural basic education from the perspective of rural revitalization
    HU Jia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 209-213.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.041
    Abstract （344）      PDF （1640KB）（147）       Save
    The value of rural basic education poverty alleviation to the rural revitalization strategy lies in improving the vocational skills and awareness of the rural population, transmitting the excellent traditional culture of the Chinese nation, and driving rural economic development and cultural rejuvenation; At the same time, it provides intellectual support for poverty alleviation and fundamentally blocks the transmission of poverty traces in rural areas, and consolidates the results of targeted poverty alleviation. Based on the results of analysis hierarchy process and guided by the poverty alleviation value of rural basic education, the path of poverty alleviation in rural basic education was explored. At the economic level, actively expand the channels and sources of education poverty alleviation funds. At the cultural level, help villagers establish correct value orientation and penetrate the family educational concept. At the level of effectiveness evaluation, step up the construction of the evaluation system for the results of poverty alleviation in rural basic education, and realize the strategic goal of rural revitalization as soon as possible with the assistance of educational revitalization.
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    Discussion on traditional Chinese medicine agriculture and Xian'an green development
    ZHOU Hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 214-217.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.042
    Abstract （350）      PDF （1541KB）（132）       Save
    Traditional Chinese medicine agriculture is an agriculture produced and managed according to the holistic view, system theory and principles of traditional Chinese medicine. Traditional Chinese medicine agriculture is an ecological agriculture with Chinese characteristics and an upgraded version of ecological agriculture. The development of traditional Chinese medicine agriculture is not only the national strategy of ecological priority and green development, but also the need of green and sustainable development in Xian'an district. This paper analyzes the policy advantages and technical basis of developing traditional Chinese medicine agriculture in Xian'an district. Its main content is to establish agricultural demonstration area of traditional Chinese medicine, establish agricultural industrial park of traditional Chinese medicine, build academician workstation and agricultural research institute of traditional Chinese medicine, and establish agricultural big data center of traditional Chinese medicine. Six measures to promote traditional Chinese medicine agriculture are put forward to promote the development of traditional Chinese medicine agriculture in Xian'an district and promote resource conservation, environment-friendly, food safety and green sustainable development in Xian'an district.
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    Research progress of astragalus extracton on antiviral effects
    WU Chang-hong, YANG Ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 5-8.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.001
    Abstract （602）      PDF （1646KB）（348）       Save
    Astragalus is a traditional Chinese medicine. The main chemical composition of astragalus contains various active substances, such as flavonoids, saponins and polysaccharides, which have various functions like anti-virus, anti-tumor, and activating immunesystem. Moreover, astragalus showed an extensive antiviral effects, including human viruses and animal viruses, such as herpes virus, hepatitis B virus, avian influenza virus, porcine circovirus, etc. This article summarized the antiviral effects of astragalus. It will provide some ideas on developing the application of astragaluson antiviral research.
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    Research progress on market differentiation of agricultural machinery cross regional operation service and its causes
    RUAN Dong-yan, ZHOU Jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 9-13.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.002
    Abstract （352）      PDF （1638KB）（161）       Save
    With the support of policy, the service market of China's agricultural machinery cross regional operation continues to extend, but there is an obvious differentiation trend among different crops and different agronomic links in recent years. This paper summarizes the existing literature from the perspective of the development process, differentiation trend and causes of the cross regional operation service market of agricultural machinery. The existing literature discusses the reasons for the market differentiation of agricultural machinery cross regional operation service from the aspects of agricultural machinery purchase cost, profit space, agricultural machinery supply, the time difference of inter regional, terrain and traffic conditions, but it still can't fully explain the above differentiation phenomenon. Because of the constraints of time and space, we need to find a more powerful theory to explain the differentiation phenomenon from the perspective of space-time factors.
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    Visual research progress and prospect on tourism destination image in abroad
    LIU Xiao-hua, LIANG Yue-lin, YAN Meng-fan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 14-18.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.003
    Abstract （581）      PDF （1786KB）（605）       Save
    This paper systematically reviewed and summarized the progress of foreign visual research in the field of tourism destination image. The research object was the network tourism picture, the research content mainly included the representation analysis of destination image visual, the influence of visual cognition and the visual attention. The research methods could be divided into three categories, content analysis,visual elicitation and eye-tracking technology. Based on this, it is suggested that in addition to focusing on the diversification of research perspectives and research methods, the research contents should focus on the vertical contrast of the visual representation of the tourism destination image and the driving effect of the visual cognition of the tourism destination image on the image cognition and even the tourism intention, as well as the different visual media's traveling image dissemination effect and so on.
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    Planting performance and high-yielding cultivation techniques of Wuliangyou eyingsimiao as post-tobacco rice in Jingzhou
    XU Zheng-meng, WU Yun-zi, XU Hui, SHI Fang-chun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 19-20.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.004
    Abstract （953）      PDF （1610KB）（196）       Save
    Wuliangyou eyingsimiao was an indica two-line hybrid rice bred from cross of WU331S and Eyingsimiao by Hubei Quanyin Seed Co., Ltd. In 2020, it was released by the crop variety approval committee in Hubei province （20200036）. The variety showed the characteristics of good rice quality, high and stable yield in Jingzhou, and its high-quality and high-yield cultivation techniques were summarized.
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    Application of intelligent breeding plant in polyploid rice breeding
    WEI Zhi-song, SHU Yuan-yuan, CAI De-tian, LIU Yu-hua, WANG Qing-fei, WANG Qun, MA Xue-han
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 21-25.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.005
    Abstract （411）      PDF （4424KB）（299）       Save
    This paper summarized that through the regulation of spectrum, light intensity, light duration, temperature, humidity and carbon dioxide concentration,the intelligent breeding plant of polyploid rice in the whole growth period had realized the rapid propagation of 3~4 generations a year;Secondly, in the establishment of polyploid rice germplasm and hybrid breeding, seasonal restrictions could be put aside for rice ploidy morphological identification and hybrid embryo rescue seedling propagation; In addition, while using anther culture for haploid rapid generation and stability, combined with gene chip gene detection and other high-tech breeding auxiliary means, it could eliminate the single plant with bad characters in the intelligent breeding factory, retain the single plant with good characters, transplant it to the field for propagation and identification, and finally select a new line to achieve the breeding goal.
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    Comparative analysis of intercropping and monocropping of summer maize and soybean in Huanggang city
    WU Yu, CHANG Hai-bin, WU Jian-lei, ZHAO Jun-li, YU Chang-bing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 26-28.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.006
    Abstract （496）      PDF （1620KB）（260）       Save
    In order to explore the summer maize and soybean intercropping model for Huanggang city,Hubei province,a comparative experiment study was carried out between the summer maize-soybean intercropping model and the conventional monoculture to analyze the yield and economic benefits of different models. The results showed that the economic benefit of maize and soybean intercropping model was significantly higher than that of maize or soybean monoculture,with a profit of 8 150 yuan per hectare. Compared with conventional maize or soybean monoculture,the intercropping model increased income by 2 116 yuan per hectare and 3 670 yuan per hectare, respectively. The economic benefit of intercropping model is considerable, which can provide a theoretical basis for the promotion of summer maize and soybean intercropping technology.
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    Study on estimation model of rape yield components based on multi-factor
    XU Fei-fei, XIONG Shi-wei, XUN Jing, HUA Jun-wei, JIA Tian-shan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 29-35.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.007
    Abstract （388）      PDF （2253KB）（263）       Save
    The aim of this study was to find the main influencing factors, and constructed the estimating method of oilseed rape yield components. Kernel weight per plant （KW）, pods number per plant （PN） and 1 000-kernel weight （1 000 KW） were taken as the research object. Using the data of agricultural meteorology observation data and varieties examination of rapeseed, and meteorological data for the corresponding period from 1995 to 2018 in Jiangsu province, 4 types of important factors, such as key meteorological factors in the main growth stages, growth period characteristics, varieties characteristics, planting density, were determined by combining with the physiological characteristics of oilseed rape. The 4 types of factors were collated to form 43 factors correlated with oilseed rape growth, whose correlations with yield elements were analyzed. Finally, the estimating models of oilseed rape yield elements were constructed with progressive regression method based on high correlation factors, and the prediction accuracy of each model was analyzed and verified. The results showed,①Multiple of the 43 correlated factors were significantly or extremely significantly correlated with oilseed rape yield elements;②The models for estimating 3 yield components all passed the significant test at the 0.01 level, and their goodness of fit were also good;③ The estimating accuracies（EA）of the components of intra-group and inter-groups were also at high level, generally more than 80%, among which the EA of 1 000 KW model was 88.31%. Researches show that the estimating models constructed in this paper have good applicability, which can provide theoretical basis and modeling idea for accurate measurement of oilseed rape yield.
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    Variation characteristic of snowfall and its relationship with atmospheric circulation factor in eastern Hexi corridor
    YANG Xiao-ling, SUN Zhan-feng, LI Yan-ying, WANG Sheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 36-41.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.008
    Abstract （401）      PDF （1896KB）（379）       Save
    Using daily snowfall of five meteorological stations in eastern Hexi corridor during 1960—2018, spatial and temporal variation characteristics of snowfall and its relationship with atmospheric circulation were analyzed in this region with linear regression, mean square deviation and correlation coefficient method. The results showed that snowfall of eastern Hexi corridor had obvious regional characteristics, average and extreme value of snowfall was more in mountain area than in oasis plain, and that was more in oasis plain than in desert area. Snowfall of year and age also assume increasing trend except Gulang county, increasing trend of Tianzhu county was the most obvious. Snowfall was mainly in spring, autumn and winter, snowfall was increasing in spring and winter, while was decreasing in autumn. Anomaly of year snowfall was more consistent, normal years was the most, occurrence probabilities were in 62.7%~72.9%, and in turn to both ends of decline. Influences of Indian subtropical high area, western Pacific subtropical high area and east Asian trough intensity on snow in same spring, autumn and winter were the most obvious, respectively. Influences of Asia meridional circulation, northern hemisphere polar vortex intensity and east Asia trough intensity on snow in next spring and winter were the most obvious, respectively.
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    Analysis on the temporal and spatial variation characteristics of meteorological elements during the crop growing season in Qaidam basin from 1981 to 2018
    XU Xue-lian, LEI Yu-hong, CAO Xue-feng, XU Qing-xia, QI Dong-lin, ZHU Cun-xiong, LIANG Zhi-yong, HE Sheng-lu, LI Cun-lian, LI Fan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 42-49.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.009
    Abstract （387）      PDF （3818KB）（388）       Save
    The daily average temperature, rainfall, sunshine hours and wind speed of the four national meteorological stations in the growing season （april-september） from 1981 to 2018 in the Qaidam basin were used to calculate the accumulated temperature, days of accumulated temperature and frost days ≥ 0 ℃, and the relative wetter index was calculated. The results showed that the heat resources increased significantly in the growing season, the average temperature, active accumulated temperature ≥ 0 ℃ and the number of days with active accumulated temperature increased significantly, and the climate trend rate reached 0.43 ℃/10a, 77.86 ℃/10a and 0.39 d/10a, respectively. The precipitation in the growing season and the number of precipitation days showed an increasing trend with the rates of 17.08 mm/10a and 1.64 d/10a, respectively. The climatic trend rates of sunshine hours, mean wind speed and frost days were significantly reduced with -38.77 h/10a, -0.17 m/（s· 10a） and -0.71 d/10a, respectively. Crop growing season average temperature between 1991 and 1992 mutations, the temperature by relatively cold period into a relatively warm period, the temperature before and after the mutation precipitation and accumulated temperature 0 ℃ or higher activity significantly increased, sunshine time, wind and frost days decreased obviously, and rainy days, acuity 0 ℃ accumulated temperature time and relatively humid index change was not obvious.
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    Characteristic of antibiotics accumulation by zooplankton in Guizhou province plateau waters
    XIANG Gang, YUAN Meng, DANG An-zhi, LONG Sheng-xing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 50-57.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.010
    Abstract （364）      PDF （2554KB）（245）       Save
    Zooplankton were collected from Hongfeng lake, Baihua lake, Aha reservoir and Caohai wetland, antibiotics of zooplankton and water quality parameter were determined in order to understand characteristic of antibiotics accumulation by zooplankton in Guizhou province plateau waters. The results showed that the phytoplankton in Caohai wetland had a significant cumulative effect on the antibiotic sulfamethoxine, and the highest concentration was 5.07 ng/g. There were obvious seasonal differences in the concentration of antibiotics in zooplankton, which was mainly caused by the seasonal changes of zooplankton community. In addition, the enrichment of antibiotics in zooplankton was limited by the concentration of TN（total nitrogen）, TP（total phosphorus） and chlorophyll a in water, and there was a significant negative correlation between the concentration of antibiotics in zooplankton and the nutrient factors TN, TP and chlorophyll a, especially the concentration of the antibiotic erythromycin dehydrated in zooplankton.
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    Study on available surface water resources in karst area based on load and resistance balance：Take Liuchong river basin as an example
    ZHAO Li-tao, LI Xi-nan, DONG Qian-jin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 58-62.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.011
    Abstract （363）      PDF （2963KB）（418）       Save
    Taking Liuchong river basin in Bijie city of Guizhou province, China as the main research object, on the basis of the analysis of the regional water resources carrying condition, using the ecological footprint approach, the water resources carrying capacity of the Liuchong river basin is calculated. Use buckle loss method, the river basin water resources availability is calculated, and the impact of the operation of Hongjiadu hydropower station on the available water resources of Liuchong river basin is considered. The results show that the water resources carrying capacity in Liuchong river basin is good, and the available water resources is 2.451 billion cubic meters, which can provide better water resources conditions for the development of regional social economy.
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    Analysis and prediction of cultivated land footprint and economic decoupling in Yueyang city
    YIN Wei-te, ZHANG Ya-li, YANG Xian-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 63-67.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.012
    Abstract （366）      PDF （1690KB）（250）       Save
    The utilization of cultivated land in Yueyang city is analyzed by using ecological footprint model, Tapio decoupling model and grey prediction model. From the perspective of ecological footprint, the development of cultivated land footprint and the decoupling of agricultural output value are analyzed, and the future development is predicted. The results show that per capita ecological footprint of cultivated land in Yueyang city is high, in which the peak value of per capita ecological footprint is 0.99 hm2/people, the ecological deficit level is 0.833 hm2/people, the depth of ecological footprint is 6.3, and the footprint breadth is 0.100~0.157; The decoupling state is dominated by weak decoupling, with a frequency of 60% and a strong decoupling of 20%. The development of cultivated land is in a state of industrial development and resource pressure rising gradually. The forecast results show that the per capita ecological footprint will continue to increase, and the decoupling status is mainly weak. During the “14th five-year” period, Yueyang city needs to make continuous efforts in the high-quality development and protection of cultivated land.
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    Preparation of environment-friendly slow-release carbon source biofilm carrier material from agricultural and forestry wastes
    YANG Lei, GUO Jun, WANG Yan, TSERING Dorje
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 68-71.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.013
    Abstract （400）      PDF （2229KB）（311）       Save
    An environment-friendly slow-release carbon source biofilm carrier material was prepared from agricultural and forestry wastes, wheat straw and polyethylene, and its physical properties, film-hanging properties and nutritional slow-release properties were explored. The results showed that the average strength of the carrier material was 4.5 MPa, molding pressure, thermoplastic time, straw particle size, and straw content all affected the specific gravity of the carrier material, but the specific gravity of the carrier material was less than that of water; The higher the straw content was, the greater the porosity was. The carrier material with 80% straw content had a porosity of 93.29%; The dissolution rate of organic matter in the early stage of the carrier material was small and fast, and the rate of dissolution in the middle and late stages was slowed down. The amount of organic matter dissolution reaches the peak value at 8 d. The higher the straw content was, the higher the organic content of the carrier material leaching solution was. At the peak, the organic content of the carrier material with 80% straw content was 79 mg/（L·g）. The leachate contains abundant elements required by microorganisms, free of all kinds of toxic elements, and could promote the growth of microorganisms.
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    Study on the treatment of aquaculture wastewater by the ultrafiltration-ammonia stripping-electrodialysis-MAP process
    SHI Ya-wei, GAO Hong, LIU Yan-jie, HAN Xiu-yan, PAN Mei-lin, SONG Fan-yong, WANG Shuai, WANG Yao, GONG Yuan-jian, YANG Zhong-feng, YANG Xiao-le
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 72-76.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.014
    Abstract （464）      PDF （6101KB）（354）       Save
    In order to develop an efficient, reasonable and feasible method for the treatment of aquaculture wastewater, ultrafiltration-ammonia stripping-electrodialysis-MAP process was used to treat the wastewater from a chicken in Yantai, Shandong province. The results showed that the concentrations of COD, phosphate, and total phosphorus in the water samples decreased to different degrees after ultrafiltration, by 72%, 37% and 39%, respectively; Ammonia stripping process had a good effect on the removal of ammonia nitrogen in wastewater, the removal efficiency was >99%, and the final concentration was 60 mg/L. The desalting rate of electrodialysis was over 86%; Finally, magnesium ammonium phosphate （MAP） crystallization method was used to recover phosphorus from the aquaculture wastewater, and the recovery rate of phosphorus reached 93.7%.
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    Antimicrobial activity of methanol extract of Acacia confusa
    PANG Hao-yuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 77-81.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.015
    Abstract （465）      PDF （1662KB）（272）       Save
    The antimicrobial activity of the methanol extract of Acacia confusa and its different extraction parts were studied. Ultrasonic extraction was used to extract the components of Acacia confusa, the antimicrobial activity of the extracts against 11 phytopathogenic fungi was determined by the mycelial growth rate method, and the extracts against 14 species of animals pathogenic bacteria were determined by the liquid medium dilution method and the filter paper method. The antimicrobial activities of the extracts were determined by liquid-liquid extraction to preliminarily separate the antimicrobial active ingredients and determine the antibacterial activity of each extract. The results showed that the methanol extract of Acacia confusa has broad-spectrum antimicrobial activity. At a concentration of 10.0 g/L, it had inhibitory activity against 8 kinds of plant pathogenic fungi and 9 kinds of animal pathogenic bacteria. Among them, the inhibitory rate against Brassica oleracea, Exserohilum turcicum and Ceratocystis paradoxa reached more than 89.55%, and the minimum inhibitory concentration against Bacillus cereus, Bacillus subtilis and Shigella dysenteriae was 1.0 g/L; Acacia confusa had inhibitory effects on plant pathogenic fungi and animal pathogenic bacteria, and the action parts were n-butanol and ethyl acetate.
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    Biological characterization and pathogen identification of Polygonatum odoratum root rot in Liaoning province
    LI Xiao-li, SUN Wen-song, LIU Ying, LI Ling, ZHANG Tian-jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 82-85.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.016
    Abstract （397）      PDF （1744KB）（226）       Save
    To identify the pathogen of Polygonatum odoratum root rot and clarify its biological characteristics in Liaoning province, which the pathogenic strains were isolated, purified and cultured. Based on pathogenicity tests, combining with morphological observation and extension factor （EF1-α） sequence analysis, the kinds of pathogenic strains were clarified and the biological characteristics of pathogen were systematically studied. The results indicated that the pathogen was identified as Fusarium oxysporum, which the optimum medium for pathogen growth was potato dextrose agar （PDA）, the carbon source and nitrogen source was mannitol and potassium nitrate, respectively. The temperature was 25~30 ℃, pH was 5~7, and the light condition was completely dark.
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    Study on annual pesticide control model of Empoasca vitis under dynamic monitoring in Yunnan black tea area
    LI Jin-long, YU Xiang-shuai, LUO Mei-yun, LONG Ya-qin, LUO Zi-wen, CHEN Lin-bo, WANG Yun-gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 86-91.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.017
    Abstract （380）      PDF （1868KB）（167）       Save
    Combined with the annual dynamic monitoring of Empoasca vitis （Gothe） in tea garden of Fengqing county of Yunnan province, four green prevention and control modes were used to study the prevention and control effect of Empoasca vitis （Gothe） in tea garden, and the cost was calculated. Two times of botanical biological pesticides and one time of chemical pesticides were used to prevent and control the Empoasca vitis （Gothe） in tea garden on June 16, June 24 and July 22, respectively. The results showed that the prevention and control model was pruning + stone sulfur mixture garden sealing+blue board+biological pesticide （450 times dilution of 0.6% rotenone）+chemical pesticide （1 000 times dilution of 6% ethyl doxycycline）. Under this mode of control, the average correction control effect of 7 days after three times of treatment were 78.85%, 64.650% and 76.20%, respectively, and which increased by 25.11, 41.63 and 22.68 percentage points compared with conventional control, respectively. Compared with conventional control, the output value increased by 2 100 yuan/hm2, and the ratio of output to investment was 14.6.
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    Isolation and screening of antagonistic bacteria and its active substance against tobacco bacterial wilt
    TANG Ming-qiang, LIN Tian-ran, LI Xiao-fang, ZHOU Xiao-qin, ZENG Wen-long, LIN Xiao-lu, PENG Shui-lian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 92-96.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.018
    Abstract （419）      PDF （3150KB）（398）       Save
    The antagonistic bacteria were isolated from the rhizosphere soil of healthy tobacco plants by plate inhibition circle method, and the morphological culture observation, physiological and biochemical tests and 16S rDNA sequences were compared and analyzed. The results showed that 9 strains of antagonistic bacteria were isolated, among which strain FQ-7 had the strongest antibacterial activity, with the diameter of antibacterial zone reaching 16.3 mm. The strain FQ-7 was identified as Streptomyces violaceolatus. The strain was facultative aerobic, negative in contact enzyme and methyl red test; It could decompose starch and casein while showing tolerance to NaCl with the fastest growth rate at 10 g/L; It could use maltose, mannitol, glucose and sucrose while could not use lactose, sweet alcohol, sorbitol and cellobiose; Antibacterial substances from strain FQ-7 were subjected to lipophilic compounds dissolved in ethyl acetate; The relative inhibition activity maintained 88.51%~95.40%, 86.52%~99.88% and 85.52%~91.05% under different proceeding conditions of various temperature（40~121 ℃）, pH （2.0~8.0） and UV irradiation （30~120 min UV exposure time with 8 W lamp）, respectively.
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    Analysis on seed yield and quality in the second-generation seed orchard of Cunninghamia lanceolata
    CHENG Lin, CHEN Xiao-ming, TAN Wen-jing, LAN Xiao, CHEN Qin, CHEN Dai-xi, DAI Jun, HUANG Kai-yong, LIANG Ji, JIA Sheng-qiang, MO Shao-feng, HUANG Yong-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 97-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.019
    Abstract （387）      PDF （1755KB）（411）       Save
    In order to explore the variation law of seed growth of different clones in the second-generation seed orchard of Cunninghamia lanceolata, 22 clones were used as experimental materials to study the main yield and quality evaluation indexes of 9 varieties. The results showed that there were significant differences in seed yield and quality among clones, and there was a certain correlation between each index. The average cone yield, cone length, cone width, fruit shape index, seed yield, excellent degree, germination rate, 1 000-grain weight and astringency rate of Cunninghamia lanceolata were 1.71 kg, 27.27 mm,1.12,24.40 mm, 0.16 kg, 73.88%, 35.21%, 7.01 g and 19.45%, respectively. Cluster analysis showed that 22 clones were divided into 4 groups at 13 euclidean distances. Group I had the best performance, including 8 clones ED4, ED14, ED3, ED8, ED19, ED17, ED16 and ED12. The average cone yield, cone length, cone width, fruit shape index, seed yield, excellent degree, germination rate, 1000-grain weight and astringency rate of these clones were 1.86 kg, 28.50 mm, 1.10,25.84 mm, 0.18 kg, 74.67%, 47.50%, 8.273 g and 18.42%, respectively. The yield and quality traits of cone and seed can be used as an important index for germplasm selection of Cunninghamia lanceolata. The excellent clones were selected as the optimal germplasm materials of Cunninghamia lanceolata.
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    Study on dust retention ability of 20 commonly used green tree species
    YAN Qian, XU Li-shuai, DUAN Yong-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 101-105.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.020
    Abstract （665）      PDF （1688KB）（677）       Save
    In order to explore the dust retention ability and influencing factors of different plant leaves, 20 species were selected as the research object in Shanxi Agricultural University in Jinzhong area. The amount of dust retention of leaves was measured by wash standing method, and the influence of leaf morphology parameters and leaf surface microstructure on dust retention ability were analyzed to reveal the influencing mechanism. The results indicate that, according to the dust retention capability, 20 species of plants can be divided into three classes. Euonymus japonicus Thumb., Styphnolobium japonicum （L.） Schott and Cotoneaster multiflorus Bge. have the highest dust retention ability with an average dust retention capability of 1.49 g/m2, followed by another 12 species such as Forsythia suspensa ‘Aurea', Rhus typhina, Sorbaria kirilowii （Regel） Maxim., and so on, with an average of 0.81 g/m2, and the last five species Viburnum opulus subsp. calvescens （Rehder） Sugimoto, Yulania biondii （Pamppanini） D.L.Fu, Styphnolobium japonicum f. ‘pendula', and so on, have the lowest dust retention capability 0.50 g/m2; There is a significant positive correlation between leaf morphology （long axis, short axis, average leaf area） and dust retention amount of a single leaf at 0.01 significance level, but there is no significant correlation between leaf morphology and dust retention capability of per unit area; The leaf surface of tree species has rough structures such as moderate length of villi, moderate width and depth of grooves, protrusions or pores, which are beneficial to dust retention, and the dust retention ability of tree species is proportional to the density of rough structures. It can be seen that the dust retention ability of different species is significantly different, and the leaf morphology and leaf surface microstructure are the key factors affecting the dust retention amount of the leaf surface.
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    Study on cutting propagation of Tutcheria championii base on orthogonal experiment method
    LU Qi-feng, LUO Wen-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 106-109.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.021
    Abstract （464）      PDF （1650KB）（151）       Save
    In order to select the suitable treatment for Tutcheria championii cutting propagation,the effects of plant growth regulator types, concentration and substrates on Tutcheria championii cutting propagation were studied using orthogonal experimental design and membership function method. The result showed that the plant growth regulator types, concentration and substrates had significant effects on rooting rate of cutting propagation. The comprehensive analysis of membership function method showed that when the exogenous growth regulator was 100 mg/L IBA and the matrix was yellow soil and sand（the volume ratio of yellow soil and sand was 2:1）, the cutting effect of Tutcheria championii was the best.
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    Effects of different rotation models on yield and quality of two edible fungi
    CHEN Li-hua, ZHANG Yu, LIU Yang, PENG Jun-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 110-114.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.022
    Abstract （449）      PDF （1716KB）（231）       Save
    In order to improve production decline problem of Dictyophora spp. monoculture, Dictyophora indusiata （Vent. Pers.） Fisch. and Morchella vulgaris were chose as experimental materials, and five rotation models were conducted, including D. indusiata monoculture, M. vulgaris monoculture, D. indusiata-M. vulgaris rotation, D. indusiata-Brassica oleracea L. rotation and M . vulgaris- Capsicum annuum L. rotation. The yield and quality indexes of D. indusiata and M. vulgaris per unit area were determined for 3 consecutive years. The results showed that rotation can partly improve the yield and quality of D. indusiata and M. vulgaris when compared with monoculture treatment. Among the five treatment, the comprehensive performance of D. indusiata and M. vulgaris was the best in D. indusiata-M. vulgaris rotation. In this rotation model, compared with the monoculture, the yield, the number of fruit-bodies per unit area and the weight of single fungus of D. indusiata in the second and third year increased significantly. Furthermore, the pileus fresh weight, the fungus height, the stipe diameter and the length of reticulation significantly increased simultaneously. The ash content, crude protein, crude fat and crude fiber of D. indusiata under the same rotation model also increased slightly （no significant difference） than that of monoculture. In the second and third year under D. indusiata-M. vulgaris rotation model, the yield, the weight of single fungus and the number of fruit-bodies per unit area of M. vulgaris increased significantly when compared to the monoculture, respectively, and the ash content, crude fat and crude fiber content of M. vulgaris increased significantly when compared to the monoculture. The pileus length and diameter of the third year increased when compared to the monoculture. The ratio of pileus to stipe of M. vulgaris under the same rotation model was greatly increased. Under D. indusiata-M. vulgaris rotation, the morphology and quality of M. vulgaris were significantly improved.
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    Genetic diversity analysis of tomato varieties based on phenotypic traits
    HE Run-ming, LI Zhen-xing, GUO Han-quan, HUANG Zhi-wen, TIAN Yong-hong, SHEN Ying, LIU Hong-biao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 115-120.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.023
    Abstract （440）      PDF （1814KB）（239）       Save
    Coefficient of variation, correlation analysis, principal component analysis and cluster analysis were carried out on 15 quality traits and 8 quantitative traits of 95 tomato resources. Analysis of the following conclusions,the phenotypic traits of the resources showed rich genetic diversity; Among the quality traits, the highest Shannon-Wiener diversity index was pericarp color at mature （1.235）;The compound leaf length （2.087） and plant height （2.079） were higher quantitative traits, and the highest variation coefficient was single fruit weight （128.6%）. There was a complexinterrelation between traits. The cumulative contribution rate of the first 7 principal components was 76.71%, which contained most of the genetic information of all traits. Based on phenotypic traits, the 95 resources were divided into 5 groups at genetic distances of 5 by the method of intergroup clustering. Group 1 contained 35 resources, which were characterized by high plant height, large single fruit quality and infinite growth habit; Group 4 contained 44 cultivars, and the main characteristics were low fruit weight and high fruit shape index.
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    ffects of fermented Chinese medicine microecological preparations on growth performance,serum biochemical indexes and antioxidant capacity of weaned piglets
    HE Wei-min, LI Xiao-wen, KUANG Shi-chang, WANG Chun, LI Kun, WANG Xi-liang, XIAO Yun-cai, LI Zi-li, ZHOU Zu-tao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 121-124.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.024
    Abstract （379）      PDF （1646KB）（208）       Save
    Aiming to study the effects of fermented traditional Chinese medicine microecological preparations on the growth performance, blood biochemical indexes and antioxidant capacity of weaned piglets. 120 piglets （Duroc×Landrace×Yorkshire） weaned at 23 days of age were divided into four groups randomly, with three replicates in each group and ten piglets in each replicate, i.e. control group （basic diet）, antibiotic group （basicdiet+0.075 g/kg chlortetracycline, 0.015 g/kg enramycin and 0.1 g/kg olaquindox）, test group Ⅰ（basicdiet+0.3% fermented Chinese medicine and 0.15 g/kg Bacillus subtilis TL） and test group Ⅱ（basicdiet+0.3% fermented Chinese medicine and 0.3 g/kg Bacillus subtilis TL）, 30 days trial period. The results showed that the average daily gain of test group Ⅰ was significantly higher than that of control group （P<0.01）, the feed to gain ratio （F/G） of test group Ⅰ was significantly different from that of control group （P<0.05）, The diarrhea rate of test group Ⅰ and Ⅱ was significantly lower than that of antibiotic group （P<0.01）. Compared with control group and antibiotic group, the serum ALB and GLU in the test group Ⅰ and Ⅱ were significantly higher（P<0.05）, the content of serum TG in test group Ⅰ and Ⅱ were significantly lower （P<0.05）. Compared with antibiotic group, the levels of GSH-Px and SOD in blood of test group Ⅰ and Ⅱ was significantly higher, and MDA content significantly lower. It can be seen that microecological preparation of Chinese medicine agents could improve growth performance, reduce diarrhea rate, enhance immune function and improve antioxidant capacity.
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    Effects of three different processed products of Radix codonopsis on the intestinal flora of rats with spleen deficiency
    WEI Lu, MA Xiu-mei, QIN Shu-xian, ZHONG Wen, TAN Yu-ping, QIN Dan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 125-127.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.025
    Abstract （467）      PDF （1639KB）（174）       Save
    A rat model of spleen deficiency was established by the method of purging the bitter cold from rhubarb, the regulating effect of three different processed products of Radix codonopsis on the intestinal flora of rats with spleen deficiency were observed. The normal group, model group, Radix codonopsis group, Mi Radix codonopsis group, and honey Radix codonopsis group were set up,and continuously give corresponding drugs to detect the changes in the number of intestinal flora before and after the experiment. Results showed that the number of intestinal flora of rats in the normal group and the model group did not change significantly; after the rats of the Mi Radix codonopsis group were successfully modeled, the number of bifidobacteria and lactobacilli in the intestine increased, and the number of Escherichia coli and staphylococcus decreased; Radix codonopsis after the rats in the raw product group and the Radix codonopsis group were administered, the number of bifidobacteria and lactobacilli in the intestinal tract increased, and the number of Escherichia coli and staphylococcus decreased compared with the number of Radix codonopsis group, returning to near normal levels. The three different processed products of Radix codonopsis have obvious regulating effect on the intestinal flora of rats with spleen deficiency, and the regulating effect of Radix codonopsis on spleen deficiency rats was better than that of raw Radix codonopsis and honey Radix codonopsis.
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    Study on extraction and purification process of total saponins of Codonopsis tanshen Oliv.
    ZHANG Mei-li, XIE Zhuo-liang, SONG Ya-hui, XIN Qin-yan, YU Lan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 128-132.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.026
    Abstract （409）      PDF （1696KB）（249）       Save
    The ethanol reflux extraction method was used to investigate the effects of different extraction temperature, material-to-liquid ratio, ethanol concentration and extraction time on the extraction rate of total saponins of Codonopsis tanshen Oliv.. The orthogonal test was used to optimize the extraction process conditions, and a suitable macroporous adsorptive resin was screened to purify the total saponins. The results showed that the best process conditions for reflux extraction of the total saponins of Codonopsis tanshen Oliv. were：Extraction temperature was 70 ℃, material-to-liquid ratio was 1:25, ethanol concentration was 70%, extraction time was 90 min. Under this process condition, the extraction rate of total saponins was 2.15%. HPD-100 type macroporous adsorptive resin had the best adsorption performance for the total saponins of Codonopsis tanshen Oliv.. The best purification conditions were：The concentration of the sample solution was 5 mg/mL, the eluent was 70% ethanol. Under this purification condition, the purity of total saponinis was 90.69%. The extraction and purification process has simple operation, low required cost and strong feasibility, which can provide theoretical reference for the industrial development of Codonopsis tanshen Oliv.
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    Experimental research on the separation of L-serine by ion exchange method
    ZHENG Gui-hua, LI Shi-yao, ZHANG Ting, CUI Xiong, ZHANG Wen-hao, SUN Jing, QIU Cheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 133-136.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.027
    Abstract （396）      PDF （1679KB）（353）       Save
    By studying the adsorption and desorption ability of four different kinds of ion exchange resins named 201×7, AB-8, D301R and DAION PA312 to L-serine, the better resin named DAION PA312 was selected, and the best adsorption and desorption process parameters were also determined. Adsorption conditionsThe sample solution pH=9, the adsorption time was 20min, the actual exchange capacity was 94.25 mg/g; Desorption conditionsEluent was 0.2mol/L of phosphate buffer solution （pH=5）, elution flow rate was 0.4 mL/min. The results showed that DAION PA312 had a high adsorption amount and lower adsorption time, which was suitable for the separation and purification of L-serine.
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    Study on effect of Houttuynia cordata extract on the grape preservation
    ZENG Xiao-ying, TAN Yan-ping, CHEN Feng-mei, LIU Huai, QIN Yan-jiao, YAN Chun-lan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 137-140.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.028
    Abstract （428）      PDF （1679KB）（223）       Save
    Taking Kyoho grapes as the experimental material, the grapes were treated with houttuynia cordata extract at concentrations of 0.5,1.0 and 2.0 mg/mL respectively. The effect of houttuynia cordata extract on the preservation of Kyoho grapes was assessed by changes in indicators of the weight loss rate, vitamin C content, titratable acid content and soluble solid content. The results showed that houttuynia cordata extract treatment could effectively slow the decrease of water, vitamin C content, and titrate acid and soluble solid content during storage, which reduced the loss of nutritional value and prolonged the shelf life of grape.
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    Study on preparation of persimmon juice drinks
    HU Hong-chao, SHEN Yong-xian, SHU Xu-gang, JIANG Xu-hong, LIU Zhan-mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 141-145.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.029
    Abstract （595）      PDF （5454KB）（203）       Save
    Taking Gongcheng persimmon as the raw material, it was processed into persimmon juice using targeted techniques and formula. In order to maintain the better flavor and taste of persimmon juice, inhibit the browning of the juice during storage, the best formula of persimmon juice drinks were determined through response surface analysisThe addition amount of soybean protein was 3.50%, the addition amount of color enhancer was 0.50‰, the addition amount of color retention agent was 1.89‰, and the addition amount of stabilizer was 1.08‰. According to this formula, the persimmon juice drinks presented the orange-yellow, with clear color, no layering and no precipitation, delicate and soft taste, moderate sweetness, rich persimmon flavor and slight astringency.
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    Application of grey multiple regression model in optimizing the absorption performance of venturi fertilizer
    GUO Hong-jie, MA De-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 146-150.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.030
    Abstract （364）      PDF （1858KB）（264）       Save
    In order to effectively improve the working performance of the venturi fertilizer applicator, related experiments were carried out on the commonly used venturi fertilizer applicator, using the Bernoulli equation as the basic calculation equation, and the pressure difference, inlet flow ratio, fertilizer liquid concentration were analyzed by gray correlation theory. The effect of the mass fraction of fertilizer solution on the performance of venturi fertilizer absorption, and then multiple regression analysis of each influencing factor to establish an optimized prediction model for the amount of fertilizer absorbed by the venturi fertilizer. The test results showed that the pressure difference was between 0.02 and 0.12 MPa under the interval, the order of the influence of various factors on the amount of fertilizer absorption of the Venturi fertilizer applicator wereMass fraction of fertilizer liquid, pressure difference, inlet flow ratio, concentration of fertilizer solution, and the prediction equation of the amount of fertilizer absorption of the venturi fertilizer applicator was Y=-0.565 8-76.151 2X1+1.254 3X2+138.504 2X3+1.992 5X4.
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    Quality traceability technology of container bulk grain based on block chain
    LIU Shen, DONG Ting-ting, CHEN Zhao-an, WANG Ren-hai, PENG Yuan, ZHANG Hu-cheng, ZHANG Fu-lin, ZHANG Dong-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 151-155.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.031
    Abstract （391）      PDF （2872KB）（225）       Save
    A bulk grain quality traceability technology based on blockchain was proposed. Based on the bulk grain container quality traceability business of “North grain to South transportation”, facing the business flow and logistics links, the storage identification code and flow data acquisition and processing technology were applied. The bulk grain container was taken as a unit, and the storage status, sealing status and logistics status were coded according to the unified rules. Combined with the transaction workload accounting, transaction information release verification and storage of blockchain technology, the accounting was completed and of the traceability platform block was released finally.
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    Industrial automation security analysis based on distributed Internet of things
    WANG Jian-chun, HU Xiao-jin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 156-160.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.032
    Abstract （356）      PDF （5180KB）（203）       Save
    With the continuous expansion of computing and communication functions of modern embedded platform, the development of reconfigurable manufacturing system based on Internet of things technology. Based on the control interpretive Petri net （CIPN）, the CIPN model of industrial IoT controller is transformed into TPN model, which was coupled with the factory and security aware channel model. The system level security performance verification was realized in the network-based attack. The model was evaluated in a practical application case studywhen an attack occurs, the message can be blocked after picking up the workpiece from the soaking pool by enabling carrier transmission on the transceiver. The applicability of the developed safety automation framework in distributed pneumatic manipulator was proved.
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    Analysis of watershed governance issues in China and the Yangtze River Protection law
    HUANG Ya-ping, JIN Hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 161-165.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.033
    Abstract （335）      PDF （1617KB）（182）       Save
    Since the 18th CPC National Congress, China has paid more attention to water management and watershed ecological environment management, and has also put forward higher requirements. In the process of watershed protection and management in China, there are still some problems, such as management issues, law enforcement issues and the most important legal issues. As the first specific law about watershed in China, the Yangtze River Protection Law of the People's Republic of China （hereinafter referred to as the Yangtze River Protection Law） pays a very important role. It responds to some problems in governance practice, and it has some innovative approaches. However, there are still some watershed issues and details that need to be further sorted out, identified and adjusted. At the same time, the Yangtze River Protection Law is the “higher-level law” and it also needs to be further develop ed with corresponding “lower-level law”. The subjects involved in the Yangtze River Protection Law should also make corresponding arrangements and implement relevant systems as soon as possible.By exploring watershed governance issues in China and the specific provisions of the Yangtze River Protection Law, in order to provide theoretical reference for watershed governance work.
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    Research on promotion of apple industry in Yan'an city based on SWOT analysis
    LU Dong-ning, YANG Ni
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 166-169.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.034
    Abstract （490）      PDF （2611KB）（419）       Save
    Yan'an city is one of the regions that meet the seven indicators of the suitable apple growing areas in the world. In recent years, the economy has been rising in Yan'an city. As the pillar industry of Yan'an city, agricultural industry plays a leading role, and apple industry has also gradually become the main industry of increasing farmers' income. The SWOT analysis method was used to analyze the strengths, weaknesses, opportunities and threats of apple industry development in Yan'an city. It was found that there were some problems, such as low yield per unit area, single variety, seasonal shortage of labor force and low natural disaster prevention ability. Combined with the actual development situation of apple industry in Yan'an city, some suggestions were put forward,which including giving full play to regional advantages to expand brand effect, using technological advantages to incr ease the market share of apple juice, paying attention to technological innovation to develop green products, establishing a scientific disaster prevention system to ensure apple quality, promoting the orchard mechanization to improve production efficiency, paying attention to market demand to optimize variety structure, and avoiding risks to improve farmers' awareness of disaster resistance, in order to provide theoretical basis for apple industry development in Yan'an city.
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    Study on the efficiency and spatial pattern of tourism poverty alleviation in Zunyi city
    SHI Wen-tao, WANG Ding, MA Yan-lin, ZHOU Lin-rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 170-173.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.035
    Abstract （333）      PDF （2707KB）（215）       Save
    Tourism poverty alleviation is one of the effective ways to overcome poverty, and the efficiency of tourism poverty alleviation is an important indicator to measure the effectiveness of tourism poverty alleviation. DEA model was used to measure the tourism poverty alleviation efficiency of 14 counties （cities, districts） in Zunyi city, and its spatial distribution characteristics were discussed with the help of ArcGIS software. The results showed that the average efficiency of tourism poverty alleviation of 14 counties （cities, districts） in Zunyi city was 0.475, it was at the middle and low level as a whole, which had great development poten tial. According to the efficiency of tourism poverty alleviation, the 14 counties （cities, districts） in Zunyi city were divided into three types：High efficiency area, medium efficiency area and low efficiency area. On the whole, the efficiency of tourism poverty alleviation in Zunyi city presented a spatial pattern of “large dispersion and small agglomeration”.
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    Empirical study on the periodic difference of influencing factors in the cultivation of new professional farmers
    ZHAO Jing, XU Xiu-mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 174-178.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.036
    Abstract （450）      PDF （1661KB）（131）       Save
    The important role of new professional farmers cultivation project is becoming increasingly prominent in rural revitalization. Based on the questionnaire survey and interview of the new professional farmers in Shandong province, two multi-classified Logit regressions with different reference levels were used to explore the influencing factors in the cultivation of new professional farmers. The results showed that the main influencing factors of the new professional farmers showed the periodic difference in different development periods. In the initial period, the main influencing factors were the use of new species or the renewal of species, non-agricultural employment experience, agricultural favorable policies or project support;In the middle period,the main influencing factors were the brand awareness, the training of new professional farmers, marketing and management level;In the mature period, the main influencing factors were the farm infrastructure equipment or facilities, marketing and land area. In view of different development periods,relevant suggestions were put forward from the perspective of precise cultivation and classified policies, in order to better cultivate the new professional farmers and help the rural rejuvenation and development.
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    On the public welfare reinforcement of land expropriation tract development
    LI Yi-heng, WU Xin-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 179-184.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.037
    Abstract （455）      PDF （1636KB）（323）       Save
    The weakening of public welfare of land expropriation tract development increases the risk of local governments abusing the expropriation power,endangers the legitimate rights and interests of the farmers,and “squeezes” the applicable space of the collective construction land market system. In order to avoid blocking the process of national economic and social development and urbanization, this paper used normative analysis method and literature research method to compare the“Detailed Rules for the Implementation of Land Expropriation Standards for Tract Development”published by provincial government,sumed up the tract development into expansion type and limitation type,expounded the weakening phenomenon of the public welfare of tract development. This paper analyzed the potential legal risks of the weakening of public welfare, and embedded the land expropriation tract development system in the public and private interests balance framework, put forward targeted legal reinforcement recommendations,in order to promote urbanization construction and protect the legitimate rights and interests of the expropriated farmers to provide help.
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    Study on impact path of climate change risk response perception in southern Shaanxi
    XUE Si-wen, ZHOU Qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 185-192.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.038
    Abstract （393）      PDF （2759KB）（221）       Save
    Based on 819 survey data of Southern Shaanxi, the structural equation model was established to analyze the influencing factors and action paths of climate change risk response perception in Southern Shaanxi. The results showed that perception of climate change effect, human-earth concept, education level, climate change concern degree, perception of industrial structure adjustment impacted response status. People's concept of man-land and risk affect people's perception of climate change response by influencing their perception of the causes of climate change. There were 19 pathways and 9 causal pathways for climate change risk response in Southern Shaanxi. The path model was spatially different. The unmediated path model was showed in Hanzhong city and Shangluo city, the mediated path model was showed in Ankang city, which was consistent with the whole Southern Shaanxi region. Based on th e geographical detector and structural equation model path, the key factors influencing climate change risk perception in Southern Shaanxi were explored, some suggestions were put forward to improve the level of climate change risk response perception.
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    Analysis of agricultural cooperation and strategy between China and Laos based on SWOT framework
    WEI Mi1， WU Quan-qing， ZHANG Xiao-chuan， SHEN Yao-yang， YANG Feng-chang， WEN Guo-quan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 193-197.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.039
    Abstract （377）      PDF （1619KB）（359）       Save
    The in-depth study on agricultural cooperation between China and Laos could provide a theoretical basis for the long-term development of agricultural cooperation between the two countries and promote the realization of regional economic prosperity and development. Using the SWOT analysis method， from the perspective of strengths， weaknesses， opportunities and challenges， this paper analyzed the important factors in China-Laos agricultural cooperation， such as resources， culture， environment， demand， policy and development system. Based on the above analysis， the paper put forward four strategies， the first was to expand the scale of Laos rice production and strengthen the construction of agriculture demonstration park， ensure the cooperation and support border rubber planting， the second was to build sustainable modern agricultural production management system， actively respond to Laos environmental protection demands， the third was to be preferred in relatively perfect infrastructure construction cooperation， promote cooperation and deepen cooperation in the areas the connotation， the fourth was to implement comprehensive agricultural cooperation projects as a whole， and encourage enterprises to make innovation cooperation mode.
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    Research on the effective connection between overall poverty alleviation and rural revitalization under the path of rural tourism in Guangxi
    WANG Xiao, LI Xing-qun, WEN Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 198-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.040
    Abstract （415）      PDF （1594KB）（151）       Save
    Rural tourism was a powerful starting point for poverty alleviation in Guangxi, and a new way to effectively connect poverty alleviation and rural revitalization in Guangxi. Based on the research on the actual development of rural tourism in Guangxi, this paper put forward the feasibility of the effective connection between the achievements of rural tourism boosting poverty alleviation and rural revitalization, and put forward corresponding solutions to the existing problems, in order to provided reference for the rural revitalization of Guangxi.
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    Research on the path of artistic rural construction from the perspective of rural revitalization strategy
    WU Di
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 201-203.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.041
    Abstract （584）      PDF （1600KB）（395）       Save
    Artistic rural construction was an important way to promote rural spiritual civilization. This study analyzed the development background of art rural construction, and put forward the path of art rural construction from the perspective of rural revitalization strategy, in order to promoted the effective development of art rural construction and the implementation of rural revitalization strategy.
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    Discussion on the construction of “internet+healthcare” mode in rural under the background of rural revitalization strategy
    LAN Qiao-si, LU Rui-hong, LIANG Rong, HUANG Ya-fen, CHEN Xiang, TAO Pin-yue, SHI Meng-xi, LEI Zhuo-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 204-206.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.042
    Abstract （871）      PDF （1618KB）（321）       Save
    Under the background of rural revitalization, in order to provide more convenient,efficient,diverse and high-quality healthcare services to the general public, China has gradually begun to promote and apply the joint mode of internet and medical services, realize the optimal allocation of healthcare resources, innovate the types of medical services, improve the me dical experience of rural patients and help to build the “Healthy China 2030”. Based on the current analysis of “internet+healthcare” mode, the practical value of its joint application was explored, the construction measures of rural “internet+healthcare” mode under the background of rural revitalization strategy were put forward, in order to provide reference for the sustainable development of rural medical services in China.
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    Research on the knowledge transfer function of university library under the background of rural revitalization strategy
    HE Jian-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 207-211.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.043
    Abstract （364）      PDF （1743KB）（158）       Save
    Taking the knowledge transfer of agricultural science and technology demonstration base in universities as an example, this paper explored the function of university library in providing knowledge transfer service to farmers by using empirical research method. Based on the analysis of the knowledge transfer system of agricultural science and technology demonstration base facing farmers and the knowledge transfer mode of agricultural science and technology demonstration base facing farmers, this paper analyzed the function of knowledge transfer of university library in agricultural science and technology demonstration base of university. In this way, the empirical research method can be used to explore the knowledge transfer function of university libraries facing farmers in the process of rural revitalization, and the knowledge transfer function of university libraries could be better exerted.
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    Research on construction of long-term governance mechanism for relative poverty under the background of rural revitalization strategy
    MA Li, WANG Guang-bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (18): 212-216.   DOI: 10.14088/j.cnki.issn0439-8114.2021.18.044
    Abstract （435）      PDF （33920KB）（95）       Save
    Under the background of rural revitalization strategy,the relative poverty problems caused by unbalanced and inadequate development in China have become the focus of poverty governance after 2020. This study pointed out that there was a coupling between rural revitalization and relative poverty governance, and analyzed the demarcation of relative poverty standards and the practical experience of poverty governance in some provinces at home and abroad, put forward the long-term governance mechanism for relative poverty, which including building the monitoring mechanism for poverty prevention, relative poverty identification mechanism, industrial poverty control mechanism, urban and rural integration development mechanism and perfect the social security mechanism, in order to provide reference for the governance of relative poverty under the background of rural revitalization strategy.
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    Advances in studies of transcription factors in rice related to tapetum development
    ZHANG Qiu-yun, SHEN Ya-qi, JIANG Wen-xiang, LIU Jia-lin, WANG Lian-hong, HE Hao-hua, HU Li-fang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 5-10.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.001
    Abstract （513）      PDF （1709KB）（279）       Save
    Tapetum is the innermost structure of anther wall in rice. It is the provider of enzymes and sporopollen for the formation of fertile pollen grains. It is of great significance to regulate pollen fertility. At present, a series of transcription factors involved in the development of rice tapetum have been isolated, which are involved in the development of tapetum. In this paper, the molecular mechanism and regulatory network of transcription factors such as MADS, bHLH and PHD finger related to rice tapetum development were summarized, which laid a foundation for further understanding the molecular mechanism of rice tapetum development.
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    Research progress and prospect of orchard transportation equipment and digital orchard
    WANG Zuo, ZHANG Jun-feng, XIAO Jin, LUO You-yi, TIAN Man-zhou, HE Yu-shuang, ZHOU Zhao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 11-14.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.002
    Abstract （452）      PDF （1752KB）（635）       Save
    By means of literature investigation, the research results of domestic and foreign scholars on orchard transportation equipment and digital orchard and the actual application of the products were summarized. The research and application status of mechanized orchard transportation equipment at home and abroad and the research status of digital orchards in China were summarized, the main problems were analyzed, and the development trend of orchard transportation equipment and digital orchards was prospected.
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    Advances in the study of Acanthopanax trifoliatus（L.） Merr. and their relatives in the same genus
    GUO Yong-xiu, LI Fang-chan, SUI Jia-ning, NONG Yi-qing, JIANG Lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 15-18.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.003
    Abstract （510）      PDF （1585KB）（298）       Save
    Acanthopanax trifoliatus（L.） Merr. is a common folk medicinal plant in Guangxi Zhuang Autonomous Region. The chemical constituents and pharmacological effects of Acanthopanax senticosus and its related plants were summarized, the commonness and individuality in Acanthopanax senticosus and its related plants were discussed, and its development prospect was prospected, so as to provide reference for the further development and utilization of Acanthopanax senticosus and the establishment of quality evaluation.
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    ARTP irradiation on pollen grain of Brassica napus and phenotype identification of their offsprings
    HE Xiao-ying, LU Wen-hu, SHI Wei-ce, WANG Wen-min, WANG Jing-qiao, CHEN Wei, ZHANG Guo-jian, ZHANG Jian-kun, SHU Zheng-qi, ZU Feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 19-22.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.004
    Abstract （454）      PDF （1779KB）（374）       Save
    In order to obtain the mutant lines of high oil content rape, the ARTP mutation experiment of pollen grains of Brassica napus was carried out.The pollen of the restoring line 16C of Ogu CMS in Brassica napus was irradiated with ARTP mutation technology for 0, 20, 30 and 40 min respectively, and the mutated pollen was given to the sterile single plant 16CS naturally produced in the same population. Then traits of the progeny, such as seed number per pod, seed germination rate and energy and oil content were surveryed. The results showed that ARTP irradiation of Brassica napus pollen for more than 30 min could significantly reduce the number of single horned grains at the time of mutagenic pollen pollination and the germination potential and germination rate of M0 generation seeds, improve the sterile plant rate of M0 generation plants and the oil content of M1 Generation seeds, and obtain the mutant line ARTP30-315 with an oil content of 52.61%. The preliminary results showed that it was effective to carry out rape pollen mutation by ARTP-P instrument, and the more suitable ARTP irradiation time was 30~40 min. A more suitable parameter system was explored for carrying out pollen mutation of Brassica napus by ARTP-P instrument in production, which provided a new method and idea for carrying out germplasm innovation of Brassica napus in the future.
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    Breeding and high yield cultivation technique of fresh maize variety Guitiannuo 228
    LIU Ya-li, LU Sheng-qiao, CHEN Kun, GONG Xue, SU Qi, TENG Hui-sheng, YANG Yao-jiong, ZHONG Chang-song, ZHANG Shu-kuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 23-24.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.005
    Abstract （551）      PDF （1520KB）（305）       Save
    Guitiannuo 228 is a new sweet waxy corn variety bred by the Maize Research Institute of Guangxi Academy of Agricultural Sciences. It was bred by the waxy inbred line 518MBC-13 as female parent and wxwxsh2sh2 inbred line 6 ZhenBCW-2-15 as male parent. It was approved by Guangxi Crop Variety Approval Committee in 2020. The variety has high edible quality and excellent commodity properties, high yield, strong disease resistance and wide adaptability. Because the ratio of waxy and sweet kernels of F2 is 3∶1, which takes into account the flavor of waxy corn and sweet corn and the taste of consumers in North and South China,it has become an important type of fresh corn in China.
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    Effect of reducing rice planting area on water environment in Ningxia irrigation area
    ZHENG Fang, MA Li-wen, ZHAO Hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 25-29.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.006
    Abstract （373）      PDF （1847KB）（259）       Save
    From the perspective of transporting water to the air, the adverse effects of reducing rice planting area in Ningxia irrigation area were analyzed. The results showed that reducing the rice area of 10 000 hm2, half of which was changed to corn area and the other half to wheat area, the water evapotranspiration would reduce by 3.032×107 m3. Under the condition of concentrated continuous planting and calm wind, the air relative humidity would decrease by 11.6% from April to September. If the irrigation area reduced rice area by 10%~30% and changed to corn area and wheat area, the water transported to the air in the whole irrigation area would reduce by 2.5×107~7.4×107 m3, the groundwater level droped by 29.3~87.8 mm every year. It could be seen that the contribution of maintaining rice area to ecology was huge.
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    Breeding and application of rapeseed variety green manure Zhongyoufei 1
    QIN Lu, LIAO Xiang-sheng, ZHENG Yuan-ben, XIE Li-hua, GU Chi-ming, LIAO Xing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 30-33.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.007
    Abstract （545）      PDF （1540KB）（278）       Save
    Zhongyoufei 1 was a new rapeseed variety which could use for green manure or oilseed production which was bred by the oil crop research institute of Chinese academy of agricultural sciences. The results of 2-year multi-site experiment in Hubei province showed that, under low fertilizer input conditions, the fresh weight of shoot biomass was 43 560.0 kg/hm2 on average, which was 15.81% increase than that of the control variety Yangguang 2009, the amount of N, P（P2O5） and K（K2O） returning were 88.20 kg/hm2,14.25 kg/hm2 and 119.10 kg/hm2, increasing by 21.2%, 12.5% and 17.3%. The seed yield of Zhongyoufei 1 was slightly more than that of the control cultivar under low N fertilizer input conditions, and its seed quality meeted the criteria of double low rapeseed in China. Under normal fertilizer application, the variety could be used as seed production and green manure.
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    Soil quality monitoring and diagnosis of pepper and Chinese cabbage rotation system under different fertilization treatments
    WANG Su-ping, DU Lei, HONG Juan, HUANG Xiang, ZHANG Gui-you, JIANG Li, CHENG Wei-shun, LUO Xi, ZHANG Li-hong, YE Li-xia, CHEN Gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 34-38.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.008
    Abstract （387）      PDF （1637KB）（216）       Save
    The effects of different fertilization treatments on crop yields and soil physical and chemical properties of pepper-cabbage rotation system were studied. The results showed that fertilization could increase the yield of pepper and Chinese cabbage, and the yield of 2/3 chemical fertilizer nitrogen+1/3 organic fertilizer nitrogen treatment was high, which was 7 808 kg/hm2 for pepper and 65.18 t/hm2 for Chinese cabbage. Fertilization could improve soil physical properties, cultivation and application of organic fertilizer could reduce soil bulk density, and application of organic fertilizer could increase soil water content. After fertilization, the activity of urease, alkaline phosphatase and invertase in the soil were all increased. There was no significant difference among soil invertase and catalase activity, pH, and organic matter content in different fertilization treatments. Soil EC, mineral nitrogen, and available phosphorus and the content of available potassium were significantly increased. Considering crop yield, soil physical and chemical properties, fertilizer utilization rate and soil enzyme activity, 2/3 fertilizer nitrogen+1/3 organic fertilizer nitrogen was recommended.
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    Effects of rainfall and feed ramie on water loss and biomass of sloping farmland
    XIONG Wei, XU Min, WANG Wei, TANG Di-luo, WANG Hong-wu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 39-42.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.009
    Abstract （329）      PDF （1581KB）（185）       Save
    The effects of rainfall and feed ramie planting on water loss and biomass of sloping farmland in 2018 were studied. The results showed that ramie grew from April to October, with more water loss in plum rain season and less water loss in autumn drought. Ramie was better than maize in reducing water loss. The rainfall of 40.0 mm was the starting point of water loss, and 62.3 mm was the out-of-control point of water loss. When the coverage reaches 90%, the amount of water loss could be reduced, and when the coverage was below 60%, the amount of water loss increased with the increasing of rainfall. The growth rate and daily weight gain of ramie were consistent with the average daily rainfall. Fresh grass for ramie was heavier than corn.
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    Potential evaluation and reuse scheme of plow layer soil-stripping of cultivated land occupied by non-agricultural construction in Nanchang city
    LIU Yun, LI Hai-feng, TU Dai-hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 43-48.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.010
    Abstract （409）      PDF （2149KB）（329）       Save
    Using the method of GIS spatial analysis and sampling survey, the quantity and scale of stripped arable soil in Nanchang city were calculated and analyzed. The results showed that in theory, the total area of stripable topsoil soil in Nanchang was 8 947.12 hm2, and the amount of stripable earthwork was 2 387.42×104 m3;The actual stripable cultivated land area of the cultivated layer to be occupied by non-agricultural construction in Nanchang was 7 036.94 hm2, and the stripable soil earthwork was 1 958.95×104 m3; The total area of cultivated land resources to be supplemented in Nanchang was 15 091.01 hm2, and the total demand for covering soil was 4 527.31×104 m3. The demand for covering soil of the newly-increased cultivated land from dryland to paddy consolidation was in big percentage （53.1%） of the total demand for covering soil of the newly-increased cultivated land in Nanchang. Dry land to paddy consolidation for the quality imprvoment of cultivated land,land consolidation for the development of cultivated land-reserve resources, and urban green space reconstruction were the main directions of reuse scheme of plow layer soil-stripping of cultivated land occupied by non-agricultural construction in Nanchang. Cultivated land occupied by non-agricultural construction abounds with strippable topsoil soil resource, which could meet the needs of more than 40% of the newly-increased cultivated land in Nanchang city.
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    Flooding height distribute of vascular plants in the water-level fluctuating zone of the Three Gorges Reservoir and influencing factors for its stability
    LIU Ming-zhi, NIU Han-gang, LIN Feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 49-54.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.011
    Abstract （396）      PDF （1777KB）（233）       Save
    In order to explore the impact of water storage and flooding on the vegetation in the water-level-fluctuating zone of the Three Gorges Reservoir reservoir, a survey of the vascular plants in the water-level-fluctuating zone was carried out by using the transect method from June to July 2012. The results showed that there were 81 species of vascular plants in the water-level-fluctuating zone, including 44 species in Chongqing Changshou-Banan section, and 65 species in Chongqing Fuling-Yunyang section, which were mainly herbaceous plants; Mainly gramineae and compositae. The dominant species were perennial submerged-tolerant plants such as Cynodon dactylon, Hemarthria altissima and Alternanthera philoxeroides; Plants were affected by human factors such as flooding, shipping, farming, and natural factors such as terrain and soil.
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    Study on the adsorption performance of Ganoderma lucidum bran on heavy metal Cu（Ⅱ） in water
    RAO Yi-ping, WEI Jian-hua, YE Xiang-yu, YU Hai-qiao, ZHANG Shu-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 55-58.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.012
    Abstract （340）      PDF （1606KB）（269）       Save
    Ganoderma lucidum bran was used as the adsorption material, by changing the factors such as the dosage of bran, pH value, Cu（Ⅱ） concentration, adsorption time and temperature, the adsorption of Cu（Ⅱ） was studied. The results showed that Ganoderma lucidum bran had a good adsorption property for Cu（Ⅱ） in water, and it could be used in practical treatment of wastewater containing Cu（Ⅱ）. The best conditions for the adsorption of Ganoderma lucidum bran to Cu（Ⅱ） were the dosage of 30 g/L, pH=6, adsorption time of 90 min, and temperature of 35 ℃. The adsorption process accorded with Langmuir isothermal adsorption model.
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    Biodiversity analysis of phytoplankton and water quality evaluation in Baiyangdian Wetland
    CHEN Jia-lin, KONG Fan-qing, YU Hai-jun, HUANG Yan-feng, SHI Wen-hui, HUANG Xin, LI Bing, WANG Qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 59-64.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.013
    Abstract （481）      PDF （2294KB）（205）       Save
    In January, March, May, July, September and November 2018, samples were taken from five sampling sites in Baiyangdian to investigate the flora composition, density and abundance of phytoplankton species, Shannon-Wiener index, Pielou index and Margalef index were used for biodiversity analysis and water quality evaluation. The results showed that there were 74 species of phytoplankton belonging to 7 phyla at the sampling sites, among which diatom and green algae were dominant, the species of phytoplankton were abundant, and the water quality was moderately polluted according to the comprehensive evaluation.
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    Comparative analysis of mixed severe convective weather processes in spring and summer in Hunan
    WANG Qi-huan, YAO Rong, ZHOU Chang-qing, WANG Qiang, ZHANG Kun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 65-74.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.014
    Abstract （432）      PDF （24483KB）（41）       Save
    Based on the conventional observation data, NCEP reanalysis data and Doppler radar data, the mixed severe convective weather on March 20, 2019 in spring （referred to as "March 20"） and August 21, 2019 in summer （referred to as "8·21"） in Hunan province was compared and analyzed. The results show that "3·20" was the warm advection forcing type under the westerly belt system, which brought hail and short-term heavy precipitation, and "8·21" was the quasi barotropic type at the edge of subtropical high, which brought thunderstorm gale. There was no obvious intersection of cold and warm air in "3·20" and no significant deep vertical wind shear in "8·21", which easily led to the neglect of severe convection in the forecast. The two processes had two kinds of sonde curves of upper dry and lower wet type and mixed type respectively, and the difference of stratification characteristics had different indicative significance. Compared with "8·21", "3·20" had better water vapor transport conditions. Both thermal conditions had the characteristics of low warm and humid convection unstable layer and upper dry and cold air intrusion. In terms of radar characteristics, both produced supercell storms, there were characteristic differences such as three body scattering, high hanging strong echo, high radial velocity area, middle-level radial convergence, which indicates that hail or thunderstorm wind was the main. The similarity of mixed strong convection in spring and summer was the focus of prediction work, which played a key role in the forecast and early warning of the main types and falling areas.
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    Infrared spectroscopy analysis of branches with different lignification degrees from tree peony
    LI Xiu-li, CHEN Zhen, JI Xiao-mei, DAI Zhi-gang, CHEN Fa-zhi, CHEN Zhi-wei, ZHAI Jing-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 75-80.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.015
    Abstract （454）      PDF （4698KB）（272）       Save
    Both FTIR （Fourier Transformation Infrared Spectroscopy） and Guassian multi-peak fitting were employed to investigate the spectrum properties and the differences of protein secondary structure in perennial branch with the highest lignification degree （branch 1）, annual branch with higher lignification degree （branch 2）, annual branch with lower lignification degree （branch 3） of four years old Paeonia ostii ‘Fengdanbai'. The result of FTIR showed that 12 characteristic peaks were observed. The peak intensity at 1 253, 1 385, 1 461 and 1 738 cm-1 became greater, indicating that the perennial branch contained more lignin; a blue-shift was observed in branch 1 and annual branches from 1 043 cm-1 to 1 053 cm-1, which showed that cell wall polysaccharides of branch with high and low degree of lignification were glucomannan and araban, respectively; a red-shift was occurred in branch 1 and branch 3 from 1 426 cm-1 to 1 410 cm-1, which indicated that the pectin of cell wall of branch 3 was combined with metal cation through monodentate complex. The result of Guassian multi-peak fitting for the amide Ⅰ region （1 700~1 600 cm-1） indicated that branches contained β-sheet+side chain + pectin, β-sheet, α-helix, loop+turn, and β-sheet+turn of secondary protein structures at different degrees of lignification. Branch 3 with low lignification contained more β-sheet associated with pectin, which might regulate the cell wall self-assembly; branch 1 with highest lignification contained low amounts of α-helix might compensate for reduced protein-water hydrogen bond caused by lignification.
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    Landscape beauty evaluation of Kaifeng chrysanthemum flower show based on SBE method and stepwise regression analysis
    TIAN Yu-hui, GUO Meng-di, SU Zhi-guo, LI Ang, SUN Li-qiang, WANG Zheng, WANG Peng-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 81-87.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.016
    Abstract （456）      PDF （5528KB）（377）       Save
    This study uses the SBE method to evaluate the beauty of the chrysanthemum exhibition landscape, decomposes different types of chrysanthemum exhibition landscape design elements through different professional groups, and selects 25 samples according to five types of elements to evaluate the beauty. The results show that different groups of people show differences in the degree of preference for the five elements. Through stepwise regression analysis, the correlation coefficients are 0.255 for artistic modeling, 0.217 for spatial layout, 0.195 for color richness, 0.193 for cultural mood, and 0.143 for fun. After returning, it is found that the relationship between the elements in the chrysanthemum exhibition is based on artistic modeling as the carrier, which gradually integrates and shows the characteristics of color richness, cultural artistic conception, spatial layout, and interestingness, and also reflects the characteristics and region of the chrysanthemum exhibition culture.
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    Study on the contents of total polysaccharides,total flavonoids,total saponins and the antioxidant activity in the extracts of leaves of Millettia speciosa Champ.
    MO Hong-hui, DENG Guo-wei, LI Shan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 88-91.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.017
    Abstract （528）      PDF （1597KB）（236）       Save
    The extract of leaves from Millettia speciosa Champ. was prepared by hot water reflux extraction, and the contents of total polysaccharide, total flavonoids and total saponins in the extract were determined by colorimetric method combined with UV spectrophotometry. At the same time, the scavenging ability of DPPH·, ABTS+·, ·OH and O2-· free radical was determined to evaluate the antioxidant activity in vitro. The results showed that, the contents of total polysaccharide, total flavonoids and total saponins of leaves from Millettia speciosa Champ. were （1.36±0.05）%, （0.61±0.007）%, （0.15±0.013）%, respectively. The half inhibitory concentrations of DPPH·, ABTS+·, ·OH and O2-· free radical were 16.11, 4.78, 10.26 and 7.51 mg/mL. The contents of different types of components of leaves from Millettia speciosa Champ. were different, and the content of total polysaccharide was the highest. At the same time, it had good antioxidant activity in vitro, and had the strongest antioxidant effect on ABTS+· free radical.
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    Effect of different substratum formulations ratio on the growth and yield of Stropharia rugosoannulata
    HAO Fu-xin, YANG Qing, LIU Xing-le, CHENG Xu, LI Li-yun, WANG Wen-jian, QI Sen-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 92-94.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.018
    Abstract （597）      PDF （1576KB）（477）       Save
    Using rice straw, corncob, corn straw as substratum,the effects of six different formulations ratio on mycelial growth, time of sporocarp appearance and yield of Stropharia rugosoannulata were studied to select the optimum formulations. The results indicated that with the ratio of 50% rice straw and 50% corncob, the yield of Stropharia rugosoannulata was the highest, reaching 11.88 kg/m2, and the biological transformation rate was 95.01%.
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    Domestication and feeding evaluation of Dactylis glomerata L. in Yichang
    XIONG Jun-bo, YU Wen-chang, SHEN Hong-xue, ZHU De-jiang, PENG Bing-xiang, XIONG Xiong, MAO Yu-nan, LI Yong, LIU Yang, CHEN Ming-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 95-97.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.019
    Abstract （473）      PDF （1715KB）（157）       Save
    In order to develop and satisfy the demand for native grass species for the healthy development of lawn industry in Hubei,from 2006 to 2017, the domestication, breeding and evaluation of wild orchardgrass（Dactylis glomerata L.） collected in Yichang area were carried out. A new strain of orchardgrass “Yichang” was bred by domestication and blending for three mixed selections, and the main agronomic traits and biomass of the original wild population were obviously improved. The new strain of orchardgrass from Yichang will have great potential for development and utilization in grassland establishment and grassland improvement in Hubei and even in south of China.
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    Effects of ramie whole plant pellet on growth performance,blood biochemistry and amino acid indexes of Hu sheep
    WANG Wei, XU Min, XIONG Wei, ZHU Wei, WANG Hong-wu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 98-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.020
    Abstract （382）      PDF （1555KB）（147）       Save
    In order to study the effects of ramie[Boehmeria nivea （L.） Gaudich.] whole plant pellet on growth performance, blood biochemistry and amino acid indexes of Hu sheep, 18 male Hu sheep with similar body weight were randomly divided into 3 groups, with 6 sheep in each group. They were fed peanut rod granules, alfalfa granules and ramie granules respectively, and the concentrate was the same. The results showed that there was no significant difference in initial body weight and final body weight among the three treatment groups（P>0.05）. However, in terms of average daily gain, ramie pellet group decreased by 3.41% compared with alfalfa pellet group, and the difference was not significant（P>0.05）; But it was 42.82% higher than that of peanut rod granular material group（P<0.05）. In terms of blood biochemical indexes, there was no significant difference in serum total protein, albumin, globulin, total cholesterol, high-density lipoprotein and low-density lipoprotein among the three treatment groups （P>0.05）. In terms of muscle amino acid indexes of Hu sheep, there was no significant difference among the three treatment groups（P>0.05）, but ramie granular material had the trend of increasing mutton methionine content, which was 35.62% and 15.12% higher than alfalfa granular material and peanut rod granular material, respectively.
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    Quality standards of Zhuang medicine Psychotria serpens L.
    HONG Ying-wen, XIE Ze-bi, LIANG Zi-ning
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 101-105.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.021
    Abstract （415）      PDF （9346KB）（249）       Save
    The characteristics and microscopic identification of Psychotria serpens L. were studied. With asperuloside as the reference substance,TLC was applied in the qualitative identification of it. Moisture,total ash,acid insoluble ash and extractives in Psychotria serpens L. was determined based on the approaches in the appendix of Chinese Pharmacopoeia published in 2015,and the content of asperuloside was analyzed by HPLC. The results showed that the characteristics and microscopic identification of Psychotria serpens L. were described,with stable and reliable identification characteristics. The main spots in TLC were clear,with a good separation. The limits for moisture, total ash and acid insoluble ash in Psychotria serpens L. shall be less than 13.00%, 8.00% and 0.9%, respectively, and the limits for the extractives and the content of asperuloside shall be morethan 21.00% and 0.10%. The method established is simple, accurate and reliable, and the standard limit is reasonable, whic can be used to control the quality of Psychotria serpens L.
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    Comparing pH determination in cultivated land soil
    HUANG Xiang, CHEN Gang, HONG Juan, DU Lei, CHENG Wei-shun, WANG Su-ping, LUO Xi, ZHANG Gui-you, JIANG Li, ZHANG Li-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 106-109.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.022
    Abstract （508）      PDF （1578KB）（301）       Save
    Soil acidity（pH） is one of the most important indexes of soil physical and chemical properties, which has an important effect on the nutrient form and availability of planting soil. In this research, international and national standards were used to measure soil pH in five cultivated land soils and the influencing factors were studied. We also discussed their difference between international and national standards. The results showed that the pH value was mainly affected by the ratio of soil and water, and the oscillation time and filtration had no significant effect on the determination results. There was a good correlation between the two standards. In addition, most of the test liquid was in a clear state after filtration, the stability time of the instrument test shortened, and the repeatability well.
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    The quality standards of traditional Chinese medicine preparations containing realgar are discussed in the 2020 edition of the Chinese Pharmacopoeia
    ZHU Hua, YANG Wen-qi, HUANG Piao-ling, WEI An-da
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 110-113.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.023
    Abstract （505）      PDF （1569KB）（657）       Save
    By sorting out the statistics of the content of traditional Chinese medicine preparations containing realgar, the amount of realgar taken daily and the quality standards, we discuss the quality standards of Chinese medicine preparations containing realgar, make suggestions for the safe use of traditional Chinese medicine preparations containing realgar, and provide reference for more scientific understanding and evaluation of traditional Chinese medicine preparations containing realgar.
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    Development of rain monitoring and alarm program based on Quartz.NET
    LI Shu-jing, QING Guang-yong, WANG Xi-liang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 114-117.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.024
    Abstract （381）      PDF （2539KB）（164）       Save
    In order to obtain the precipitation data of the meteorological station from the Web server of the three-level forecast service platform of the Sichuan Meteorological Bureau, and to promptly remind the staff on duty to provide corresponding meteorological services when the precipitation value exceeds the prescribed threshold, C# Language was adopted, based on Quartz.NET developed a rain monitoring alarm program. The results show that the rain monitoring and alarm program based on Quartz.NET can not only monitor the accumulated precipitation data of various weather stations within a specific time period and within a specific area in real time, give timely alarms, but also automatically generate rain notifications required for decision-making weather services. The documentation greatly reduces the labor intensity of the staff, improves work efficiency, and plays an important role in the heavy weather service work during the flood season.
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    Design and research of animal epidemic disease dynamic monitoring system based on GIS in Shaanxi province
    LI Wen-feng, YANG Ya-li, LI Long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 118-122.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.025
    Abstract （417）      PDF （2078KB）（234）       Save
    Based on GIS technology, the animal epidemic disease dynamic monitoring system in Shaanxi province was designed to realize macro animal epidemic prevention and dynamic monitoring on the basis of rapid development of animal husbandry informatization. At the same time, it provides basic data for the ecological development of modern animal husbandry. And finally realize digital management so as to promote the stable and healthy development of the province's information animal husbandry to provide scientific basis.
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    The virtual reality optimal design and research of Laoshan green tea processing
    ZHANG Wen-da, DU Jian-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 123-126.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.026
    Abstract （377）      PDF （1755KB）（212）       Save
    Analysis of Laoshan green tea processing and virtual reality technology, the basic concept and application of 3 d modeling technology, to realize the Laoshan green tea processing and the whole process of informatization, digital interactive rendering, using virtual reality technology, 3 D modeling, process with Laoshan green tea processing, processing techniques, effective integration of design and analysis. This paper puts forward a tentative idea for the construction and application of the virtual reality system function module of Laoshan green tea processing, and explores the possibility of virtual reality technology to teach, popularize and optimize the application of green tea processing. It can enable users to experience green tea processing in the virtual environment, optimize the traditional teaching and scientific research methods of green tea processing, promote the dissemination of green tea cultural knowledge and processing technology promotion, promote the quality and efficiency of green tea products, realize the modernization and intelligence of agriculture, and contribute to the development and progress of virtual agriculture.
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    Design of farmland soil moisture monitoring system based on LoRa
    ZHANG Jing-fang, ZHANG Ya
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 127-129.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.027
    Abstract （453）      PDF （4279KB）（249）       Save
    In order to solve the problems of limited communication distance, large power consumption and no extensive network in soil moisture monitoring system, a field soil moisture monitoring system based on LoRa was developed, remote transmission, control and display of soil moisture monitoring information. The soil moisture data collected by the soil moisture sensor was uploaded to the gateway through the LoRa communication module, and the gateway collects the data and transmits it to the remote monitoring platform, a monitoring system of soil moisture in urban farmland with wide monitoring range, low power consumption, flexible network and long-distance communication was constructed. The system improves the working efficiency of soil moisture monitoring, and is very suitable for the scene where there are many data monitoring and collecting stations in large-area farmland.
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    Preliminary study of endophytic fungus diversity of tea leaf in an ancient tea garden,Jingmai,Yunnan,China
    ZHANG Jian-kun, ZHOU Jian, PENG Chao, WANG Qin, WANG Fei, WANG Zhen-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 130-134.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.028
    Abstract （405）      PDF （1619KB）（186）       Save
    Tea leaf samples were collected from an ancient tea garden in Jingmai and Mangjing, Yunnan, China, and the naturally dried tea leaves were disinfected using 75% alcohol and 0.5% sodium hypochlorite and inoculated in PDA（Potato Dextrose Agar） plates for isolation of endophytic fungi. 103 fungal isolates were obtained, and basing on the morphological features 30 were selected for PCR and sequencing of ITS region and TEF gene. The results showed that 30 isolates were classified into 2 phyla, 3 classes, 7 orders, 10 families, and 13 genera, in which the isolates of Coprinellus spp. were the most （20.0%）, and Nodulisporium spp. （16.7%）, Hypoxylon spp. （13.3%）, and Daldinia spp. （10.0%） were behind in order. Comparing with reported references, the isolates in this study added taxonomic units of one order, four families and eight genera to the endophytic fungi in tea plant. Several isolates （such as 6, 10, 18, 21, 24, 26） were extremely possibly novel species of fungi. This study supposed that the ancient tea garden of Jingmai, Yunnan was quite different from usual artificially cultured tea gardens, and its endophytic fungi were extremely diverse and unique and deserved further investigation.
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    Recombinant expression and functional study of dextran binding protein in Apostichopus japonicus
    JIA Chang-feng, CHEN Zhi-yu, LEI Yi-xuan, ZHANG Lei, KONG Ling-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 135-140.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.029
    Abstract （376）      PDF （4826KB）（170）       Save
    β-1,3-glucan-binding protein （GBP） is a pattern recognition receptor （PRR）, which can recognize pathogenic microorganisms and activate the immune response. The GBP gene （AJ-GBP） was cloned from the sequenced transcriptome of Apostichopus japonicus by Polymerase Chain Reaction （PCR）. Nucleotide sequence analysis showed that the total length of the gene was 660 bp, and it could encode 219 amino acids without signal peptide. The theoretical molecular weight of AJ-GBP protein was 24.64 kDa, and the isoelectric point was 5.94. It belonged to the glycosyl hydrolases family 16, and there were glycosylation sites at positions 17 and 193. The results of protein activity test showed that the recombinant protein had agglutination, binding and inhibition effects on Gram-positive and Gram-negative bacteria. It has obvious binding activity to glucan. These results suggest that AJ-GBP may be involved in the innate immune response of Apostichopus japonicus. This study laid a theoretical foundation for understanding the mechanism of resistance to invasion of pathogenic microorganism and the actual production and utilization of AJ-GBP recombinant protein.
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    Cloning and bioinformatic analysis of ERECTA gene from Solanum tuberosum
    ZHANG Le, CHEN Ru-yi, LI Yu-shuang, GUO Zhi-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 141-144.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.030
    Abstract （434）      PDF （6272KB）（172）       Save
    ERECTA is one of the receptor-like protein kinase. It participates in the control of plant type and organ morphology, and plays an important role in stress resistance. In this study, potato （Solanum tuberosum） was used as the research object, and the cDNA sequence of potato ERECTA gene was amplified by RT-PCR. The results of bioinformatics analysis showed that the cDNA of ERECTA gene has a full length of 3 281 bp, including an open reading frame, which contains 2 973 bp, can encode 990 amino acids, and contains 10 conserved motifs. From the phylogenetic tree and multiple sequence comparison analysis, the amino acid sequence of potato ERECTA has high homology with other plant ERECTA amino acid sequences. The secondary structure analysis showed that potato ERECTA is dominated by α-helix and random coil. The three-dimensional structure prediction showed that potato ERECTA contains 8 leucine-rich LRR motifs. The results provide a theoretical basis for further research on the function of potato ERECTA.
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    Investigation on the practice mode of agricultural science and technology promoting industrial poverty alleviation in Hubei province：Taking Hubei Academy of Agricultural Sciences as an example
    LU Guo-liang, LI Qiong-jie, WU Kang, YAO Ming-hua, LI Yue-ming, LIU Xiao-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 145-148.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.031
    Abstract （439）      PDF （1537KB）（435）       Save
    This paper expounds the typical mode of Hubei Academy of Agricultural Sciences using agricultural science and technology to promote industrial poverty alleviation, which has reference significance for further strengthening agricultural science and technology to promote industrial development, promoting the effective connection between poverty alleviation and rural revitalization. Through special investigation, this paper analyzes some shortcomings and problems of agricultural science and technology promoting industrial poverty alleviation, and puts forward some countermeasures and suggestions of agricultural innovation, promoting the development of agricultural industry, consolidating and expanding, preventing poverty return and promoting the all-round revitalization of rural areas.
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    Thinking on marketing strategy of Ankang selenium-rich tea
    WANG Xuan-cheng, ZHAO Lin-long, YAN Qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 149-152.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.032
    Abstract （530）      PDF （1538KB）（325）       Save
    Ankang tea has a history of more than 3 000 years. Ankang tea has unique characteristics and advantages because of its natural selenium rich. However, due to the influence of Dabashan green tea, the popularity and sales market of Ankang selenium-rich tea are limited. In view of the problems in the marketing of Ankang selenium-rich tea camp, through investigation and empirical analysis, this paper puts forward strategies such as celebrity benefit promotion, tourism commodity promotion, cultural tea brand promotion, festival promotion, tea garden picking promotion and other strategies to promote the marketing of Ankang selenium-rich tea.
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    The effect of digital capital on the income stability of farmers under the background of COVID-19 epidemic：Mediation effect bassed on the individual dynamic capability
    ZHAO Jing, XU Xiu-mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 153-161.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.033
    Abstract （438）      PDF （1895KB）（271）       Save
    Based on the survey data of 212 farmers in Qingdao city, Shandong province, this paper used factor analysis method to measure the farmers' digital capital and their individual dynamic capability, then adopted the individual dynamic capacity as a mediation variable to verify the influence of farmers' digital capital on the stability of their income. The results show that farmers' digital capital can directly and significantly affect the stability of income. The individual dynamic capacity takes a part of mediating effect between farmers' digital capital and the stability of their income, which indirectly affects the stability of farmers' income. Therefore, this paper puts forward policy suggestions from the aspects of improving digital access and digital capability, including improving farmers' digital access from hardware construction and policy design,taking advantage of the digital transformation of agriculture and rural to enhance farmers' digital capability. In order to better enhance farmers' digital capital in digital economy era, and promote the development of digital rural and the steady growth of farmers' income.
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    Explore diversified compensation methods for mining rights withdrawal in nature reserves：Practical inspiration based on some typical regions
    ZHANG Zhe-cong, LI Xiao-yu, LIU Xiao-long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 162-167.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.034
    Abstract （361）      PDF （1979KB）（243）       Save
    It is an important measure to explore diversified compensation modes for mining rights withdrawal to comply with the withdrawal trend and improve the exit efficiency. Value evaluation is the precondition of mining right withdrawal compensation. Based on the introduction of cost accounting and value measurement, combined with the practice of the withdrawal of mining rights in nature reserves in China, this paper studied the cash compensation mode of Chongqing, the enterprise transformation mode of Qinghai Western Mining Company and the displacement mode of Guizhou Yongji Mining Company, and analyzed the advantages and disadvantages of each mode. Finally, the specific path to improve the diversification exit compensation was proposed.
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    Research on influencing factors of land scale management of large grain farmers： Based on survey data of large grain growers in Pingyuan county,Dezhou city
    FAN Ling-hui, WANG Mei-xi, HAN Dun-bin, LI Xiao, MU Shao-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 168-173.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.035
    Abstract （346）      PDF （1585KB）（163）       Save
    Based on the data of 244 large grain growers in Pingyuan county of Dezhou city, 18 variables in the four aspects of personal characteristics, family characteristics, farmers' planting costs and benefits and price of agricultural production means were chosen. Multivariable linear regression model was used to analyze the affecting factors of large grain growers' land management scale. The results show that the educational level, amounts of family labor force, the prices of land transfer, household income, cost per hectare, whether it is easy to hire workers, whether it is easy to lease machinery and whether it is easy to loan and the method of land lease （lease period） are significantly positively correlated with land scale management. The age of large grain growers, whether they have purchased large-scale agricultural machinery, the quality of agricultural materials, and the price of agricultural materials are significantly negative correlation with scale land management.
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    Research on elements distribution of popular science tourism evaluation system based on IPA method
    SHEN Hong-jie, ZHAO Lin-long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 174-178.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.036
    Abstract （416）      PDF （1816KB）（463）       Save
    This study used IPA method to analyze the importance and satisfaction of 20 popular science tourism evaluation factors in 6 scenic spots. The results showed that personnel quality, landing projects and promotion were the outstanding problems in the construction of popular science tourism. Finally, according to the distribution of elements in the four quadrants, the development suggestions of key construction projects, timely updating projects and future expansion projects were put forward.
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    Comprehensive evaluation of the development power of natural villages and discussion on the layout of central villages
    TAO Feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 179-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.037
    Abstract （351）      PDF （2182KB）（157）       Save
    It is of great significance to carry out village status analysis and development potential evaluation at the level of natural villages, and provide development suggestions and strategies with the regional situation for natural villages with different status conditions, so as to study the internal differences of villages, development needs and the establishment of regional overall development system. From the perspective of development capacity conditions-restrictive factors, by selecting data indicators related to production, life and ecological functions, the comprehensive score of development capacity of each natural villages and the influence degree of influencing factors were calculated, the priority areas of administrative villages were determined, and the development center villages within the ownership range were selected through regional factors.
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    Research on the coordination degree between population urbanization and basic public service level in Hubei province
    LUO Hui, WAN Min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 184-189.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.038
    Abstract （364）      PDF （2298KB）（150）       Save
    The coordinated development of population urbanization and basic public service level affects the transformation of China's new urbanization. By establishing the evaluation index system of the two, using the coupling coordination model and spatial autocorrelation methods, this study evaluated the spatial characteristics of the coordinated development of population urbanization and basic public service level in 12 prefecture level cities of Hubei province, and analyzed the influence of economic level and government policy on the coordinated development of the two.
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    Research on the influence of public service motivation of grass-roots civil servants in Urumqi city on work performance
    DUAN Wen-zhi, GUAN Zhi-qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 190-195.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.039
    Abstract （334）      PDF （1618KB）（220）       Save
    Public service motivation is the guide for promoting individuals to act for the purpose of public interest. In order to further explore the mechanism for improving the level of public service motivation of grass-roots civil servants, 353 grass-roots civil servants in Urumqi city were selected as the research object, and the impact of public service motivation on job performance was studied through regression analysis of data. The results show that public service motivation is common in Urumqi grass-roots civil servants, and public service motivation is at a high level. The attration of public participation and self sacrifice have a positive impact on the work performance of grass-roots civil servants in Urumqi, and put forward relevant suggestions to improve the performance of Urumqi grass-roots civil servants by improving the level of public service motivation.
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    The supply dilemma and optimization strategy of rural mutual pension service from the perspective of symbiosis theory：Take “H village elderly care home” as an example
    GUO Jian-ping, WANG Cai-ling
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 196-199.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.040
    Abstract （465）      PDF （1644KB）（235）       Save
    As a supplement of family and social pension service, rural mutual pension service aims to fully tap elderly human resources of rural elderly, build a mutual pension model, and provide new ideas for solving problems of empty nest and aging pension in rural areas. In recent ten years, the elderly care home in H village has fall into the development dilemma because of the weak supply body, parasitic supply mode and unfavorable external environment. This paper used the symbiosis theory to analyze the difficulties and reasons of elderly care home mutual aid service supply with the symbiotic unit, symbiotic mode and symbiotic environment. It put forward strategies to effectively promote the supply of mutual pension services from the aspects of establishing a symbiotic unit of shared responsibility, constructing a symbiotic model of symmetrical and mutually beneficial supply, and creating a mutually beneficial symbiotic development environment, in order to solve the problem of rural pension.
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    Spatial distribution and influencing factors of characteristic towns in Shandong province
    DONG Hao, XU Xiu-mei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 200-206.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.041
    Abstract （406）      PDF （4267KB）（184）       Save
    125 Characteristic towns published in the national and provincial lists are selected as the research samples, and the spatial distribution characteristics and influencing factors of characteristic towns in Shandong province are analyzed by using ArcGIS 10.2 software. The results show that the spatial distribution of characteristic towns in Shandong province is discrete. There are some differences between the characteristic towns and the uniform distribution in Shandong province,which are in a decentralized state, but the dispersion tends to be uniform. It is roughly divided by the eastern coastline of Dongying and the eastern boundary of Linyi. The number of characteristic towns in the west is large and scattered, while the distribution of cities in the east is relatively dense. The spatial distribution of characteristic towns in Shandong province has a high degree of coordination with economic development and population. The spatial connection is relatively close. The above analysis provides a useful reference for optimizing the spatial layout of characteristic towns in Shandong province.
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    Research on the blocking mechanism of poverty relief population returning to poverty from the perspective of feasible capability：Taking J city of H province as an example
    ZHAO Yu, XIA Qing-li, TIAN Tian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 207-211.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.042
    Abstract （382）      PDF （1552KB）（172）       Save
    China's poverty alleviation has achieved a comprehensive victory,but poverty alleviation is not the end. It is necessary to establish an early warning and blocking mechanism for poverty. In view of this, based on the perspective of feasible capability theory, this paper summarized the main methods and results of targeted poverty alleviation in J city,H province, and analyzed the risk points affecting the return of poverty-stricken people in J city, and established a mechanism for preventing the return of poverty-stricken people： Increasing poverty the political participation of the population provides equal social status for the poor, strengthening infrastructure construction and industrial development, and improving the social security system. In order to provide references for consolidating the achievements of poverty alleviation and fostering long-term poverty alleviation mechanisms in poor areas.
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    Analysis on the path to promote rural revitalization in the process of constructing the new development pattern
    GUO Xiao-ping, ZHANG Wen-chang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (19): 212-216.   DOI: 10.14088/j.cnki.issn0439-8114.2021.19.043
    Abstract （506）      PDF （1561KB）（233）       Save
    This paper mainly discussed how to comprehensively promote rural revitalization in the process of actively constructing a new development pattern, deeply analyzed the era background of China's comprehensive promotion of rural revitalization, and deeply analyzed the important significance of comprehensively promoting rural revitalization in the process of constructing a new development pattern, and explored new paths and new measures to comprehensively promote rural revitalization in the process of building a new development pattern. It is found that the comprehensive promotion of rural revitalization must take multiple measures, and put forward to improve the system and mechanism, strengthen the leadership of party building; Adhere to the “four not picking”, consolidate and expand the results of poverty alleviation; Deepen rural reforms, activate rural elements; Implement rural construction actions to consolidate the foundation for rural revitalization; Activate the urban and rural domestic demand market and construct a new pattern of rural development.
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    Research progress of calmodulin binding site regulating cyclic nucleotide-gated ion channels
    YU Bing-qing, YAN Han-chi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 5-9.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.001
    Abstract （562）      PDF （2260KB）（238）       Save
    Cyclic nucleotide-gated ion channels （CNGC） are non-selective cation channels, regulated by intracellular messenger small molecule cyclic nucleotides （cAMP and cGMP） and Ca2+/CaM. The allosteric regulation mechanism of mammalian CNGC function is affected by the binding of CaM, and mammalian CNGC has CaMBD at the cytoplasmic N and/or C-terminus. In plants side,most of the research has focused on the C-terminal CaM binding domain （CaMBD） that overlaps with the cyclic nucleotide binding domains of plant CNGC. However, recent studies on the model plant Arabidopsis CNGC12 has provided evidence that a single plant CNGC isoform has multiple CaMBDs. This review focuses on the research progress in the regulation of calmodulin binding sites in plant and animal cyclic nucleotide-gated ion channels.
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    Research on the application of blockchain technology to solve the pain points of smart agriculture
    LIU Hao, WU Zhi-ge
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 10-15.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.002
    Abstract （410）      PDF （1991KB）（184）       Save
    Based on the analysis of the characteristics and problems encountered in the development process of smart agriculture, the solution is discussed by using the characteristics of blockchain technology, such as traceability, decentralization, difficult tampering, openness and transparency. By using comparative method, case analysis method, inductive and deductive method and other methods, this paper explores how to apply blockchain technology to smart agriculture and how to better serve smart agriculture from the production, circulation, processing, financial services, consumption and other links of smart agriculture industry chain. The flow chart is used to analyze the logical process of the blockchain technology to solve the bottleneck of the development of smart agriculture, and at the same time, it discusses how to use the blockchain technology and smart agriculture to help solve some problems encountered in the practice of targeted poverty alleviation. Finally, some challenges that may be encountered in the application of blockchain technology in smart agriculture are summarized and corresponding countermeasures are proposed.
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    Effects of sowing date on growth,yield and utilization of temperature and light resources of “Si Te” late Indica rice
    LU Hua-ping, LI Xing-hua, WANG Huan, CAI Xing-xing, ZHANG Sheng, ZHOU Qiang, ZHOU Nan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 16-19.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.003
    Abstract （400）      PDF （1581KB）（161）       Save
    In order to investigate the effects of sowing date on growth and development, yield and utilization of temperature and light resources, determine appropriate direct seeding date of “Si Te” late Indica rice, a field experiment was carried out with 5 sowing dates and 4 “Si Te” late Indica rice materials. The results showed that the yield of “Si Te” late Indica rice was decreased with sowing date delay, and the main reason was that the total grain number per panicle decreased significantly with sowing date delay. Unless sowed on July 10, full heading could be safely achieved under other sowing dates. Temperature and light resources utilization rate of whole growth period were the highest on sowing date of June 20, and the lowest on June 30 or July 5. In consideration of yield, temperature and light resource utilization, security full heading and mature, June 20 is the best sowing date of “Si Te” late Indica rice, but considering crop arrangement and farming operation, the latest sowing date is July 5 of “Si Te” late Indica rice.
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    Application of the fully mechanized and efficient cultivation mode of corn in eastern of Liaoning
    ZHANG Li-li, FAN Ye, XUE Bing-dong, FENG Guang, LU Bing-sheng, YAO Yong-xiang, YANG Hai-long, FU Jun, WANG Xiao-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 20-23.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.004
    Abstract （434）      PDF （1717KB）（132）       Save
    In view of the problems in eastern of Liaoning, such as heavy rainfall, overcast rain and little sunshine during maize flowering, serious maize lodging, heavy occurrence of diseases and pests, and few varieties suitable for machine harvest, the techniques such as density-tolerant hybrid selecting, chemical regulation applying, no-tillage practice, nitrogen high efficiency utilization and seed coating controlling pests and diseases were studied from 2017 to 2019. Based on these techniques, maize dense planting, anti-logging, saving cost, high yield and efficient total mechanization operation technical model was built. This technical model applied in Baiqi and Baoshan area of Fengcheng from 2018 to 2019, the results showed that maize yield increased 15.9%~33.3%, plant anti-logging ability and stability improved, PFPN（Partial factor productivity from applied N） increased by 27.1%, maize mechanical kernel realized. At the harvest, the water content of kernel was 25%~28% and the average yield was 11 827.5 kg/hm2, labor cost decreased and saved cost by 1 800~2 700 RMB per hectare. In summary, this technical model came true the objective of saving cost, increasing yield and efficiency in a green way of production, provided the technology support to the local maize production.
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    Analysis on the variation characteristics of diurnal temperature range and its influencing factors in Huanggang city from 1961 to 2018
    GUO Li, YAN Kai-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 24-29.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.005
    Abstract （420）      PDF （4147KB）（309）       Save
    Based on the data of daily average temperature, maximum temperature and minimum temperature in Huanggang city from 1961 to 2018, the variation characteristics and influencing factors of diurnal temperature range in Huanggang city were analyzed. The results showed that in the past 58 years, the annual average diurnal temperature range in Huanggang city was 7.6 ℃, which showed a significant downward trend, and the climate tendency rate was -0.127 ℃/10 a; In the average diurnal temperature range of four seasons, it showed a slow upward trend in spring, and a downward trend in summer, autumn and winter, with the largest downward trend in summer. The annual average diurnal temperature range changed suddenly in 1978, which showed a significant decrease at first and then a slow increase, and there were 13 years low-frequency oscillation and 3~7 years high-frequency oscillation period in the past 58 years. The annual average diurnal temperature range was significantly positively correlated with sunshine hours, and significantly negatively correlated with precipitation, average water vapor pressure, average relative humidity and total clouds, each meteorological element changes the diurnal temperature range by affecting the maximum and minimum temperature.
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    Analysis of climate characteristics and human comfort changes in Tianmen city from 1955 to 2019
    LIU Wang-ping, JU Ying-qin, MA De-li, HUANG Zhong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 30-34.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.006
    Abstract （687）      PDF （1696KB）（269）       Save
    Based on the daily maximum temperature, average temperature, minimum temperature, precipitation, relative humidity, sunshine, wind speed and other meteorological data in Tianmen city from 1955 to 2019, the variation characteristics of climate and human comfort in Tianmen city were analyzed. The results showed that the maximum temperature, average temperature and minimum temperature all showed a warming trend in Tianmen city, and the warming range was minimum temperature>average temperature>maximum temperature. The interdecadal variation characteristics of temperature tended to be consistent. The temperature was low from 1950s to 1990s and high since 1990s, but the temperature change tended to slow down after 2010. More than 80% of the years in Tianmen city, the number of suitable temperature days, the suitable grade of precipitation, the uniformity of precipitation season, the suitable grade of relative humidity and sunshine were excellent level. In recent 65 years, the temperature humidity index, wind efficiency index and comfort index showed an upward trend, and had been at the comfort level since the 1990s, reflected the climate characteristics of livable, business and tourism in Tianmen city.
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    Temporal and spatial variation characteristics of PM10 and PM2.5 mass concentration in Luoyang city and their relationship with meteorological factors
    ZHAO Jia-lun, ZHOU Shi-feng, LEI Ya-kai, FENG Yan, LIU Yi-ping, KONG De-zheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 35-42.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.007
    Abstract （367）      PDF （7457KB）（166）       Save
    Based on the mass concentration monitoring data of PM2.5 and PM10 from seven state-controlled air quality monitoring stations in Luoyang city from 2017 to 2019, the temporal and spatial variation characteristics of atmospheric particulate concentration and the influence of meteorological factors on it in the urban area of Luoyang city were studied. The results showed that the overall situation of environmental air pollution in Luoyang city urban area from 2017 to 2019 showed a trend of first decreasing and then increasing. Among them, the overall situation of air quality in 2018 was the best, and the number of severely polluted days and above accounted for the lowest proportion of the effective days of the year; The number of polluted days decreased by 10 days compared with 2017, but increased by 31 days compared with 2018; The overall air quality situation of PM10 and PM2.5 concentration changes in monthly averages were basically the same, and the changes in concentration were in a U-shaped distribution; PM10 and PM2.5 the mass concentration changes had obvious seasonal characteristics. The mass concentration in winter was the highest, followed by spring and autumn, and the lowest in summer; The mass concentrations of PM2.5 and PM10 at the control sites in various countries also showed high in winter, followed by spring and autumn, and low in summer, the air pollution situation as a whole presented the distribution characteristics of high in northwest and low in southeast; Analysis of meteorological factors showed that ρ（PM2.5） and ρ（PM10） were negatively correlated with temperature; Relative humidity was negatively correlated with the mass concentration of PM10, but it was positively correlated with the mass concentration of PM2.5. When the relative humidity was 60%~70%, the mass concentration of PM2.5 was greater; The mass concentration of PM2.5 and PM10 in the wind direction was southerly and southeast-southern, south-southwest wind and west-southwest wind were smaller. The changes in air pollution in Luoyang city from 2017 to 2019 were related to terrain, meteorological conditions and urbanization.
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    Air temperature variation and mutation analysis of the twenty-four solar terms in Gaochun over 50 years
    KONG Wei-cai, SONG Ru-dong, LU Yi-lei, XIA Xiao-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 43-47.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.008
    Abstract （431）      PDF （3436KB）（159）       Save
    Based on the daily temperature data from 1970 to 2019 in Gaochun district, Nanjing city, using anomaly analysis, linear correlation analysis, M-K mutation test and other methods, the temperature change characteristics and the mutation of the 24 solar terms were analyzed （Insects awaken, Clear and bright, Grain buds, Grain in ear）. The results showed that the average temperature and the first and last day temperature of the 24 solar terms in Gaochun in recent 50 years showed obvious normal and unimodal characteristics, and the trend was consistent. Great heat and Great cold were the hottest and coldest solar terms of the year respectively. The temperature rises gradually from Great cold to Slight heat, and decreases gradually from Great heat to Slight cold. The temperature anomaly was mostly negative before the 1980s and positive after the 1990s. There was a sudden change in Insects awaken temperature in 1993, the rising trend became significantly larger, and there was a sudden change in warming in Grain buds in 1985. The temperature of each solar term showed a significant upward trend, which was consistent with the background of global warming. Agricultural activities of Gaochun district can be appropriately advanced.
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    Spatio-temporal evolution and interrelationship between underlying surface types and thermal environment in the main urban area of Shijiazhuang city
    $\boxed{\hbox{YANG Peng}}$, CHENG Si-yang, GAO Qi, ZHI Li-hui, ZHANG Yan-pin, ZHOU Jing-bo, ZHOU Yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 48-56.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.009
    Abstract （391）      PDF （9300KB）（204）       Save
    Landsat 5 TM/Landsat 8 OLI-TIRS remote sensing data in 1987, 2004 and 2019 are used to analyze spatio-temporal evolution and interrelationship between underlying surface types and thermal environment in the main urban area of Shijiazhuang city, by using RS, GIS, landscape ecology and statistical analysis methods. The results show that green space and impervious surface are the main underlying surface types. With the development of urbanization, the area of green space is gradually decreasing, and the surface area of impermeable land gradually increases. The urban expansion rate in 2004—2019 was faster than 1987—2004. The transfer model shows that the urban area develops to the northeast, while the heat island area develops to the southeast. Hutuohe river’s water storage and greening project blocked the heat island area from spreading to the northeast. The lower land surface temperature （LST） is consistent with the distribution of green spaces and water bodies, and the higher LST is consistent with the distribution of impervious surface. For every 10% increase in the proportion of green space and water landscape （PLAND）, the average LST decreases by 0.69 ℃ and 0.93 ℃. For every 10% increase in impervious surface PLAND, the average LST increases by 0.75 ℃, and the water body cools down. The effect is higher than that of green space, the average LST of the four underlying surface types and PLAND, the largest patch index （LPI） and the aggregation index （AI） all show a consistent and extremely significant correlation. The green space and the water body are negatively correlated and impervious. The ground surface is positively correlated, and the proportion of landscape. Patch size, and degree of aggregation have a greater impact on LST. The type and structure of the underlying surface are the main reasons for the difference in the spatial distribution of the thermal environment.
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    Fine climate regionalization of pepper in Shawan county of Xinjiang based on GIS
    WANG Sen, JING Li-jun, LIU Ji-jiang, LI Zhan-chao, ZHANG Shan-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 57-61.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.010
    Abstract （401）      PDF （5636KB）（246）       Save
    Based on the climate data and geographic information data of Shawan county and its surrounding 15 meteorological stations from 1961 to 2018, ArcGIS software, regression analysis and fuzzy mathematics were used to construct fuzzy membership function for index factors such as the average temperature in July, ≥15 ℃ accumulated temperature, the days of minimum temperature ≤0 ℃ from April to May, and the days of maximum temperature ≥35 ℃ from June to August. Taking climate conditions and geographical factors into consideration, the climate resource distribution map and disaster risk level map were reclassified into four levels, namely 1, 2, 3 and 4, and fuzzy superposition was carried out to divide the pepper planting area in Shawan county into the most suitable area, the suitable area, the sub-suitable area and the unsuitable area. The results showed that the most suitable planting areas of pepper in Shawan county were mainly located on both sides of Shawan county railway and Wukui expressway; The suitable areas were in a few areas south of Wukui expressway and most areas north of central part; The sub suitable planting areas were mainly distributed in northern and southern narrow and long areas; The unsuitable planting areas were mainly distributed in northern desert area, southern low mountain and mid high mountain area, in order to improve the planting efficiency, cold tolerant varieties should be selected.
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    Risk assessment of agrometeorological disasters in winter wheat planting region： A case study of Henan province
    LI Xue
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 62-66.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.011
    Abstract （421）      PDF （2230KB）（231）       Save
    On the basis of making full use of moving average method and GIS spatial data analysis method and other methods, the evaluation index of winter wheat meteorological disaster was determined, and the agricultural meteorological disaster risk assessment model based on the winter wheat planting area was constructed. Taking Henan province as an example, 14 stations were selected as sample data to assess the meteorological disasters of winter wheat. The results showed that the high-risk areas of drought in Henan province were mainly concentrated in Kaifeng and Anyang; The high-risk areas of dry hot wind were mainly concentrated in the north and central part of Henan province; And the high-risk areas of late frost were mainly distributed in the hilly areas of Henan province.
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    Land ecological security assessment based on PSR model and entropy weight method：A case study of Lanzhou city
    MA Ting, SHAO Zhan-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 67-71.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.012
    Abstract （450）      PDF （1599KB）（173）       Save
    Taking Lanzhou city as an example, the land ecological safety evaluation system of Lanzhou city is constructed by using PSR model. Selecting 16 indexes, and the weight of each index is calculated by using entropy method, and the evaluation level of Lanzhou land ecological safety is delimited according to the comprehensive index. The results show that the comprehensive index of land ecological security in Lanzhou city shows a fluctuating upward trend from 2007 to 2016, with a small fluctuation. From 2007 to 2010, the safety level is in the critical safety state. In 2011, the safety level became less safe. 2012—2015 safety level is in critical safety state; Through the self-regulation of the ecosystem and the continuous efforts of the society, the security level became relatively safe in 2016. Therefore, in order to ensure that the social economy of Lanzhou can continue to develop in a stable ecological environment, it is necessary to resolve the contradiction between land ecological pressure and land ecological security in the future development, and effectively improve the land ecological security situation in Lanzhou city.
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    Effects of EDTA,EDDS and CA on the dissolution,desorption and morphology of heavy metals in loess
    YANG Ming-hang, WANG Guo-lan, JIN Zi-han, DAI En-hua, ZHANG Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 72-79.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.013
    Abstract （475）      PDF （4798KB）（86）       Save
    In order to study the effects of EDTA, EDDS and CA on the dissolution, desorption kinetics and speciation of heavy metals in loess, the dissolution, desorption behavior and variation characteristics of Cd, Cu, Pb, Zn and four heavy metals by three chelating agents under different concentrations, different pH and different time were studied by vibration centrifugation method, and the desorption process was fitted by kinetic model. The results showed that among the three chelating agents, EDTA had the most significant effect, and its removal rate of Cd was the highest; When the concentration of three chelating agents was 1 mmol/L, the dissolution rate of heavy metals reached the highest; At the same time, the lower the pH was, the higher the dissolution rate of heavy metals in loess was; When pH=4, the three chelating agents had the highest dissolution rate of heavy metals. After the use of chelating agent, the dissolution rate and desorption rate of heavy metals increased, and the desorption rate decreased with the extension of desorption time. The first 120 min was a rapid reaction stage. The double constant equation was the best one to describe the desorption kinetics of Cd, Cu, Pb,and Zn in loess, and the first-order kinetic equation had the worst fitting effect. The main removal objects of EDTA, EDDS and CA were water-soluble heavy metals. Under the desorption of EDTA, EDDS and CA, the total amount of Cd, Cu, Pb, Zn ions in loess could be effectively reduced, which also meant that the biological toxicity of contaminated soil was reduced.
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    Effect of fluroxypyr-mepthyl on broadleaved weed control,nutrient and yield in wheat field
    ZHU Wen-da, YAN Dong-dong, LI Lin, YU Da-zhao, DONG Xing-long, LI Zong-yin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 80-83.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.014
    Abstract （1558）      PDF （1571KB）（613）       Save
    The effect of 288 g/L fluroxypyr-mepthyl EC on broadleaved weed control in wheat field was studied. The wheat yield, the content of N-P-K and water were also analyzed after weed control by fluroxypyr-mepthyl.The results indicated that the efficacy of weed control were remarkable by 288 g/L fluroxypyr-mepthyl EC in wheat field. All showed control efficacy on Galium aparine, Vicia sativa and Malachium aquaticum with a total fresh weight control effect from 90.3% to 99.9% after 60 days. After weed control, the consumption of N, P, K and water by weeds was significantly decreased, and the water and fertilizer conditions in the field were effectirely improved. The wheat yield was ranged 3 162.3 to 3 401.7 kg/hm2 after treated with 288 g/L fluroxypyr-mepthyl EC, which increased by 23.0%~32.3% compared to untreated control. Moreover, the yield income increased by 1 358.84~1 909.46 yuan/hm2.
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    Sensitivity determination of two strains of Fusarium graminearum to 6 fungicides
    CHEN Li, YUAN Qian, FAN Zhi-ye, ZHAO Yong-tao, LIU Di, LI Shi-min
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 84-86.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.015
    Abstract （341）      PDF （1577KB）（132）       Save
    Using mycelium growth rate method, the sensitivity of two strains of Fusarium graminearum which isolate from north and central of Henan province was identified to the 6 fungicides. The results showed that the sensitivity of strains 18HX2-1 and 17LH01 to phenamacril, tebuconazole, carbendazim, hexaconzole, propiconazole, triadimefon were different, strain 18HX2-1 was higher sensitive to phenamacril, tebuconazole, carbendazim than strain 17LH01, and strain 17LH01 was higher sensitive to hexaconzole, propiconazole, triadimefon than strain 18HX2-1. The EC50 of phenamacril, tebuconazole and carbendazim to two stains were less than 1 mg/L, which had better antimicrobial effect against two strains, and could be applied to control wheat scab.
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    Preliminary report on the efficacy of a biological pesticide against Dendrothrips minowai Priesner in organic tea garden
    CHEN Yu-lan, CHEN Pei-kun, LU Hai-jiao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 87-90.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.016
    Abstract （455）      PDF （1580KB）（163）       Save
    Comparative experiments on the efficacy of biological pesticides （5% eucalyptus oil solution） and conventional chemical pesticides （60 g/L ethyl doxycin suspension） against Dendrothrips minowai Priesner were conducted. The results showed that the control effects of 5% eucalyptus oil were 75.80%, 98.25%, 98.51% and 98.53% after 7 days of treatment with 750 times, 500 times, 300 times dilution of 5% eucalyptus oil and 60 g/L ethyl dotoxicillin suspension 750 times dilution, respectively. 5% eucalyptol solution 500 times diluent, 300 times diluent, and more than 60 g/L ethyl kill toxin suspending agent 750 times diluent medicine post-processing of 3, 7 d efficacy difference was not significant, but which were significantly higher than 5% eucalyptol solution 750 times diluent control effect. The solution of 5% eucalyptus oil could also control other main pests occurring in the same period of tea plantation. It had no bad effect on the normal growth of tea trees and the quality of tea leaves.
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    Effects of four post-emergence compound herbicides on weed control and yield in winter rapeseed field
    CHEN Kun-rong, ZENG Ling-yi, LIU Fan, YAN Rui-bin, REN Li, XU Li, CHEN Wang, CHI Peng, FANG Xiao-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 91-93.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.017
    Abstract （622）      PDF （1565KB）（239）       Save
    The effects of 4 post-emergence compound herbicides on weed control, yield and economic income in winter rapeseed field were investigated. The results showed four herbicides including Youbao, Youli, Youda and Youxi were very effective to control grass weeds and Galium spurium. The control effects of weed fresh weight were more than 98% 60 d after spraying herbicide. All four herbicides had little control effect to Veronica persica. The height of rapeseed plant sprayed with Youbao, Youli, Youda and Youxi reduced by 4.64%, 4.96%, 2.61% and 2.99%, respectively. Effective branch number of main stem increased by 5.88%, 7.84%, 13.73% and 13.73%, respectively. Number of effective pods increased by 5.21%, 4.69%, 7.33% and 9.02%, respectively. Plant yield increased by 7.64%, 7.31%, 9.63% and 14.62%, respectively. Economic income increased by 275.0, 175.0, 350.0, 665.0 yuan/hm2 after deductions the cost of herbicide and labour, respectively.
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    Study on rooting anatomical structure and enzyme physiological response of hardwood cuttings of Magnolia wufengensis
    LIANG Yu-ting, XIA Wen-sheng, WAGN Pu, DUAN Qing-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 94-99.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.018
    Abstract （541）      PDF （5861KB）（189）       Save
    The semi-lignified branches of Magnolia wufengensis were used as materials. The anatomical observation of rooting parts of cuttings was carried out by paraffin section method, and the activities of peroxidase （POD）, polyphenol oxidase （PPO） and indoleacetic acid oxidase （IAAO） in cutting branches were determined, and the process of adventitious root formation induced by 750 mg/L NAA was studied. The results showed that during the rooting process, the POD activity in the water treatment group （CK） and the growth regulator treatment group showed an increasing trend, and the content reached the highest at 35 d. The activity of PPO increased first and then decreased. The activity of PPO in the growth regulator treatment group and CK group increased from 0 to 14 d, and decreased sharply after 14 d. The activity of IAAO showed different trends. The activity of IAAO decreased first and then increased gradually in CK group from 0 to 7 d. The anatomical structure showed that there was no latent root primordium in the cuttings,cortex rooting type was developed from the inducted root primordium formed after cutting. Callus rooting type was originated from the vascular cambium between xylem and phloem. Adventitious roots produced by callus were specialized xylem formed by callus. Magnolia wufengensis belongs to the type of difficult to root. Low activity PPO, POD and high activity IAAO are beneficial to rooting, and additional growth regulators are needed to promote rooting. It is speculated that Magnolia wufengensis may be an induced rooting tree species, and adventitious roots can be generated by skin rooting and callus rooting.
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    Pilot test of microwave drying of Amomum tsaoko and its quality
    WANG Wei, HUANG Meng-yang, LIU Bing-guo, ZHANG Ming-yu, LIU Peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 100-104.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.019
    Abstract （355）      PDF （8261KB）（107）       Save
    TG-DTG technology was used to investigate the causes of uneven dehydration of pericarp and core of Amomum tsaoko during the conventional drying process. Through the dielectric parameter test and exploration test, it is determined that the microwave drying effect is better when the number of Amomum tsaoko spreading layers is 2, which can not only ensure the high energy utilization rate, but also avoid the condensation of water vapor on the surface of the upper layer, so as to improve the drying efficiency. The results of kilogram scale pilot test showed that with the increase of microwave power, the drying time of materials with residual moisture content less than 14% on the conveyor belt was significantly shortened. When the microwave emission power was 9 kW, by adjusting the feeding speed of the conveyor belt, the corresponding drying time could be adjusted to 10~15 min, which could reduce the residual moisture content of Amomum tsaoko to less than 14%. The results of the scanning electron microscope （SEM） before and after drying showed that microwave drying technology could complete the drying process on the premise of ensuring the product quality.
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    Pollen vitality measurement method of kiwifruit
    ZHANG Hong, LI Xiu-li, JI Xiao-mei, CHEN Zhen, YUE You-zhang, ZHAI Jing-hua, ZHAO Zhi-yuan, CHEN Zhi-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 105-107.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.020
    Abstract （784）      PDF （4782KB）（719）       Save
    Taking Actinidia chinensis as sample, this article compared the effects of pollen preparation methods on pollen vitality. The pollen vitality was studied using TTC method, I2-IK method and an in vitro method, and the optimical concerntration of sucrose, H3BO3 and CaCl2 were selected by ‘3414’ test to find a proper method for measuring kiwifruit pollen vitality. The result show that mixing pollen with pollen shells is more conducive to germination of pollen tubes. TTC and I2-IK are not suitable for the determination of kiwi pollen activity. The in vitro method can effectively reflect the true vitality of pollen. The optimal medium was 10% sucrose+0.1 mg/mL H3BO3+0.1 mg/mL CaCl2 on pollen germination in vitro and the pollen germination ratio was up to77.9%.
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    A study on landscape performance of park green space under the background of sponge city：Taking Hangzhou city as an example
    SHI Tai-long, WU Wen-ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 108-115.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.02
    Abstract （385）      PDF （13532KB）（55）       Save
    Taking Hangzhou city as an example, the landscape performance of parks and green spaces with rainwater facilities was studied. By investigating the actual needs of residents and combining expert opinions, the landscape performance evaluation system was constructed with four major indicators of landscape beauty, landscape activity, facility scientificity and spiritual culture, and an empirical study was carried out using Hangzhou sponge park green space as an example, the existing problems were analyzed and the optimization strategies were proposed.
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    Analysis on development status and countermeasures of edible fungi industry in Hubei province
    LI Shun-qing, CAI Zhi-wen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 116-118.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.022
    Abstract （708）      PDF （1535KB）（422）       Save
    Based on the field investigation of edible fungi industry in Hubei province, the development status of edible fungi industry in Hubei province were analyzed. The main problems facing the development of edible fungi industry in Hubei province were put forward from the aspects of edible fungi industrial structure, scientific and technological support and financing difficulties. The countermeasures and suggestions for the development of edible fungi industry in Hubei province were put forward from four aspects of increasing policy supply force, enhancing industrial competitiveness, enhancing industrial cohesion and realizing sustainable development.
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    Etiology and prevention countermeasures of the outbreak disease of yellow catfish（Pelteobagrus fulvidraco）
    WEN Zhou-rui, XU Qin-han, LU Ling-li, HAN Yu-zhang, LIU Ke-qun, PAN Zhou
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 119-123.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.023
    Abstract （415）      PDF （2062KB）（187）       Save
    To explore the causes of outbreaks disease of yellow catfish in some areas of Hubei province, we investigated the production situation in field. Aeromonas veronii and Plesiomonas shigelloides were isolated and identified from disease fish. The results of antimicrobial susceptibility test indicated that the Aeromonas veronii was susceptible to neomycin sulfate and flumequine, resistant to thiamphenicol, florfenicol and sulfamonomethoxine sodium. Plesiomonas shigelloides was only sensitive to flumequine, resistant to other seven kind drugs. Comprehensive factors such as temperature, water quality, and feeding conditions have analyzed the causes of outbreaks of yellow catfish. It was believed that this outbreak was mainly caused by bacterial infection and was closely related to factors such as severe temperature fluctuations, overfeeding, and deterioration of water quality. The drug susceptibility test has determined the types of available drugs and provided countermeasures for the prevention and control of this type of yellow catfish disease.
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    Study on muscle quality of Micropterus salmoides in “zero emission” pond system
    WEN Ling-mei, ZHAO Wei, XU Jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 124-126.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.024
    Abstract （337）      PDF （1573KB）（85）       Save
    the muscle quality of Micropterus salmoides was studied under the “zero emission” pond system, and the muscle texture characteristics, amino acid content and fatty acid content of Micropterus salmoides were determined. The results showed that the muscle of “zero emission” pond reared Micropterus salmoides had good elasticity, rich and relatively balanced amino acids, rich in a variety of flavor amino acids, low saturated fatty acids, high monounsaturated fatty acids, polyunsaturated fatty acids, docosapentaenoic acids and docosahexaenoic acids. The muscle of “zero emission” pond reared Micropterus salmoides had good taste and nutritional value.
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    Effects of temperature on the growth,feeding,and digestive enzyme activity of the juvenile red swamp crayfish （Procambarus clarkii）
    ZHOU Ze-xiang, FAN Wen-hao, FANG Liu, RUAN Guo-liang, GUO Xiao-ze, LIU Xin, ZHENG Wei-you
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 127-130.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.025
    Abstract （346）      PDF （1597KB）（177）       Save
    In order to study the effects of temperature on the growth, feeding, and digestive enzyme activity of the juvenile red swamp crayfish Procambarus clarkii. The juvenile crayfish（3.11±0.04 g） were selected. The object was randomly divided into 4 temperature treatment groups（23, 26, 29, 31 ℃）, and the temperature of the culture water was adjusted by a heating rod and the experiment period was 8 weeks. The results showed that the growth of body length and body weight of juvenile crayfish was the fastest at 26 ℃, which was significantly higher than the other three temperature conditions（P<0.05）. The body length and weight of juvenile crayfish increased rapidly at 29 ℃ and 31 ℃, both significantly higher than 23 ℃（P<0.05）. The temperature difference did not significantly change the condition factor of crayfish（P>0.05）. At 23 ℃, the survival rate of juvenile shrimp was the highest, up to 100%, which was significantly higher than the other three temperature conditions（P<0.05）. Among them, the survival rate was the lowest at 31 ℃, only 89%. At four temperatures, the feed coefficient was highest at 23 ℃ significantly higher than the other three temperature conditions（P<0.05）, and the feed coefficient was lowest at 26 ℃, significantly lower than 23 ℃（P<0.05）. There was no significant difference in the feed rate of Procambarus clarkii under four temperature conditions（P>0.05）. The activities of digestive enzymes （protease, lipase, amylase） gradually increased with increasing temperature, but decreased with increasing temperature.
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    Drug selection of E. coli salpingitis in adult chicken
    YANG Wen-hai, WANG Si-jiu, SHAO Zhi-yong, CHEN Xia-bing, WU Li-jun, HE Bin, XU Hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 131-133.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.026
    Abstract （407）      PDF （1564KB）（74）       Save
    E. coli salpingitis in adult chickens caused by pathogenic E. coli was clinically characterized by high morbidity, high mortality rate and high elimination rate. After the outbreak of the chicken farm, it was difficult to control the development of the disease; the purification measures were not only costly but not easily successful. The principle and method of antimicrobial drug selection from the perspective of practice were proposed, and drug guidance and reference for the effective prevention of E. coli disease in laying hens were provided.
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    Study on intestinal absorption characteristics of astaxanthin extracted from Solenocera crassicornis
    JIA Zhe, XU Yan, LIU Xin-yan, ZHANG Xiao-xia, SONG Ru
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 134-138.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.027
    Abstract （367）      PDF （4697KB）（97）       Save
    The Sprague Dawley male rats were given a single high-dose gavage with saponified and unsaponified astaxanthin, the content of astaxanthin in different parts of the small intestine after 6 h and 12 h were determined, and the total content of astaxanthin, free astaxanthin and ester astaxanthin in fresh feces of rats after 14 d of continuous gavage were detected by HPLC. The results showed that after 6 h of gavage,astaxanthin was not detected in the jejunum, ileum and colon of rats. After 12 h of gavage, astaxanthin was detected in the colon contents of both the saponified and unsaponified astaxanthin group, and the content of astaxanthin in the saponified group （283.221±89.50 μg/g） was significantly higher than that in the unsaponified group （126.850±40.49 μg/g）. After 14 d of continuous gavage, the astaxanthin residue from in feces of rats in the saponified group was significantly lower than that in the unsaponified group, and the astaxanthin residue was mainly composed of free astaxanthin（11.12±0.36 μg/g）. However, the contents of free astaxanthin and ester astaxanthin in the rats feces of unsaponified group were 21.78±3.40 μg/g and 7.69±0.32 μg/g, respectively. Therefore, the saponified astaxanthin derived from Solenocera crassicornis showed better intestinal absorption compared with the unsaponified astaxanthin.
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    Study on the influence of different preparation conditions on the quality of green tea noodles
    WEI Ling-dong, ZHOU Xin-ju, ZOU Xi, PAN Xiao-shan, WU Shu-tong, YANG Ting-ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 139-144.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.028
    Abstract （373）      PDF （3641KB）（183）       Save
    Taking the microstructure of green tea noodles, the color difference of the noodle soup and the retention rate of tea polyphenols as indicators, the mesh number and added amount of green tea powder, water addition were optimized through single factor experiment, and their correlation were discussed. The results showed the optimal process conditions for green tea noodles were water addition 42 mL, the mesh number of green tea powder 80, the added amount of green tea powder 2%. Under this condition, no fluidiification was observed in the gluten structure, the network structure of noodles was dense,orderly and well continuous, the color difference of the noodle soup after cooking was the smallest （ΔE=5.89）, and the retention rate of tea polyphenols was the highest （72.73%）. The effect of different preparation conditions on color difference was： The mesh number of green tea powder<water addition<the added amount of green tea powder. The effect of different preparation conditions on the retention rate of tea polyphenols was：The mesh number of green tea powder> the added amount of green tea powder> water addition. By exploring the impact of different preparation conditions on the quality of green tea noodles, in order to provide some theoretical basis for the preparation of green tea noodles and the research of retention rate of effective ingredients in tea.
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    Simultaneous determination of ethylene glycol and 1,2-propanediol in pastry by gas chromatography
    QIU Yi-xian, CHEN Ting-ting, CHEN Yu, TANG Ming-hua, QIN Xu-quan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 145-148.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.029
    Abstract （531）      PDF （1873KB）（279）       Save
    Establish a method for the simultaneous determination of ethylene glycol and 1,2-propanediol in pastry, using DB-WAX column （30 m×320 μm×0.25 μm）, column flow rate of 1.0 mL/min, sample inlet of 230 ℃, split ratio of 10∶1, detector was hydrogen flame ionization detector, detector temperature was 240 ℃, air flow speed was 350 mL/min, hydrogen flow rate was 40 mL/min, nitrogen flow rate was 25 mL/min, injection volume was 1 μL. The results showed that the linear relationship between ethylene glycol and 1,2-propanediol have good linearity in the range of 990~49 500 ng/mL（r2=0.999 8） and 980~49 000 ng/mL（r2=0.999 7）, respectively. The recovery of ethylene glycol was 93.22%~101.10%, RSD was 2.38%（n=9）, 1,2-propanediol was 95.15%~99.97%, RSD was 1.68%（n=9） at the three levels of 75, 100 and 200 μg. The quantitative limits of ethylene glycol and 1,2-propanediol were 6.53 mg/kg and 6.49 mg/kg respectively. The method has the characteristics of simple operation, good repeatability, good sensitivity and small toxicity of the reagents used. It can provide a reference for the content detection of ethylene glycol and 1,2-propanediol in pastry.
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    Study on HPLC fingerprint of Strychni semen
    YANG Hong-bing, LI Jin-zhou, YANG Jia, JIANG Dai-long, ZHAN Zhi-lai, SHI Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 149-152.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.030
    Abstract （402）      PDF （2144KB）（354）       Save
    To establish the HPLC fingerprint of Strychni semen by TCM fingerprint technology, and provide a new method for the quality control of Strychni semen. The extraction methods was ultrasonic for 30 min by methanol-H2O-HCl （50∶50∶1）. The mobile phase was acetonitrile-H2O （0.2% formic acid）. The gradient elution mode was applied in chromatographic separation; the analysis time was 60 min; the detection wavelength was 254 nm; the column temperature was 30 ℃; the flow rate was 1.0 mL/min. The results showed that with brucine as the reference, six common peaks in the fingerprint of Strychni semen were determined. The RSD of precision, stability and reproducibility of the method was less than 3%. Using similarity as the evaluation parameter of fingerprint, the similarity between the chromatogram and the control fingerprint of 10 batches of Strychni semen was greater than 0.9.
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    Research on the adaptability of 2BMFJ-6 multifunctional soybean no-tillage and straw covering planter in Jianghan plain
    WANG Ai-ai, DENG Jun-bo, YANG Fang, ZHOU Yi, CHEN Yan, HE Nian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 153-157.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.031
    Abstract （391）      PDF （10277KB）（36）       Save
    In order to better promote and apply protective tillage techniques in the Jianghan plain, and fulfil the farmers’ demand for no-tillage soybean planters in this area. According to the quailty of no-tillage planters seeding detection index and method of provisions of the Ministry of agriculture machinery test station and national standards and the agricultural industry standards, the field performance test of 2BMFJ-6 multifunctional no-tillage soybean straw covering planter was carried out under two kinds of natural stubble surface conditions in Jianghan plain, and the operation quality and adaptability of the seeder were analyzed. The results showed that the planter was higher than the national qualification standard in planting performance indicators such as machine’s trafficability, it depth of seed fertilizer, the uniformity of sowing, and the rate of airing seeds,etc., This machine has good trafficability and seedability, and has stable performance. It has strong adaptability in the natural stubble land in Jianghan plain and can meet the requirements of soybean precision sowing.
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    Research on the algorithm counting tea pests by image in complex background
    HUANG Can-can, CHEN Ya-long, ZHANG Wei, CAI Qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 158-163.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.032
    Abstract （403）      PDF （7355KB）（77）       Save
    Based on a kind of insect trap lamp equipment, the sample images gained and the counting algorithms with image processing were addressed. Adopted some common algorithms of separating background areas, such as color histogram segmentation and gray threshold segmentation, the sample images were difficult to be separated. This paper develops an image processing algorithm which depend on grid division. Segmented the image as 10×10, and then extracted the pests areas from the separated images. For the overlapping areas will affect the accuracy of counting, developed the marker-controlled watershed segmentation algorithm. Marking the image with minimum extension transform to segment the overlapping areas and then realizing the pests counting, the noise test and counting test were developed furtherly. Experimental results showed that, for the sample images which collected from this kind of pests trap equipment, the average accuracy of the algorithm was 91.8%. This algorithm could extract the pests areas from the sample image completely and segment the overlapped pests effectively. And the algorithm was applicable for tea pests counting in complex background.
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    Design and implementation of vegetable quality traceability platform in facility
    GAO Xin-na, HUANG Yuan, YANG Ying-ru, LI Hai-jie, WU Meng, DU Ya-ru
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 164-166.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.033
    Abstract （371）      PDF （3084KB）（127）       Save
    With the improvement of people's living standard, people pay more and more attention to the security of “on the tip of the tongue”. This paper takes facility vegetables as the research object, and uses modern information technology such as Internet, big data, two-dimensional code as the means, considering the needs of different groups of people such as government, enterprises and consumers, a vegetable quality traceability platform for facilities of Shijiazhuang Academy of Agricultural and Forestry Sciences was established, by collecting the information of plot, field management, processing and testing, the two-dimensional code can be queried to trace the information source of vegetable production in facilities, the consumer can know its production information accurately through the inquiry.
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    Research on intelligent monitoring method of tobacco leaf mildew status in storage based on Internet of things technology
    ZHANG Jing-chao, ZHAI Nai-qi, WANG Yi-bo, YUN Li-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 167-170.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.034
    Abstract （407）      PDF （4244KB）（162）       Save
    In order to quickly detect the moldy state in tobacco storage in all aspects and solve the problem that the traditional moldy detection method is complicated and requires manual judgment, a set of monitoring of specific parameters of the tobacco storage environment was built based on the Internet of things technology and BP neural network algorithm. Platform, so as to realize the intelligent monitoring of the moldy status of the stored tobacco leaves. First, design a tobacco leaf storage environment data collection terminal and a handheld wireless repeater. The handheld wireless repeater was used to wake up the data collection terminal, and use radio frequency transmission to obtain the environmental parameters collected by the terminal, and send the data to the server via GPRS. The server completes data analysis processing. After that, a tobacco leaf status recognition model was established based on the BP neural network algorithm, and the tobacco leaf status was obtained by analyzing and processing the collected environmental parameters, and the effectiveness of the model was verified by experimental simulation. Finally, an intelligent monitoring information management system for tobacco storage environment was developed and completed to realize the visual display and alarm of tobacco environmental parameters and tobacco mildew status. The test results showed that the use of the Internet of things technology combined with the BP neural network algorithm can effectively complete the monitoring of the moldy state of the stored tobacco leaves, which has certain practical application value.
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    Evaluating the agricultural water-use efficiency of the Yellow river basin basing on SBM-Undesirable model
    LI Hong-yan, FU Jun-yi, ZHANG Xing-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 171-178.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.035
    Abstract （380）      PDF （1967KB）（371）       Save
    Based on the SBM-Undesirable model, the dynamic changes of agricultural water-use efficiency and the optimization path of agriculturalwater-use in the Yellow river basin from 2009 to 2017 were studied. The results showed that the agricultural water-use efficiency of the Yellow river basin was higher than the national level, but the water-use efficiency of it has dropped by a larger margin; the average efficiency of the yellow river upper and middle reaches, the middle and lower reaches and the overall basin were 0.722, 0.855, 0.781, respectively, the efficiency in the upper and middle reaches were low and the decline ismore significant; The efficiency of Qinghai, Shandong, Shaanxi and Sichuan were 1,the water-use efficiency of Shanxi was higher, but there was a potential risk of decline. Gansu, Ningxia, and Henan have lower efficiency. Inner Mongolia has the lowest agricultural water-use efficiency and the greatest water-saving potential. According to the clustering results of agricultural water-use efficiency and pollution degree, Gansu,Ningxia and Inner Mongolia belong to the low-efficiency-low-pollution type, Henan was the low-efficiency-high-pollution type, Qinghai, Shanxi, Shaanxi and Sichuan were the high-efficiency-low-pollution type of area, and Shandong belonged to the high-efficiency-high-pollution type, different types of areas should adopt different agricultural water-use optimization policies.
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    Analysis on the risk of farmland management right transfer based on the perspective of complex ecosystem
    DENG Si-yu, XIANG Xiao-qian, GUO Ruo-nan, ZHANG Yuan-suo, YAO Yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 179-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.036
    Abstract （324）      PDF （1550KB）（93）       Save
    Based on the perspective of complex ecosystem, the relevant subjects of farmland management right transfer were analyzed, and the social risks, economic risks and natural risks faced in the transfer of farmland management right were identified specifically. On this basis, some policy suggestions were put forward, such as standardizing the market order of farmland management right transfer, improving the transfer efficiency, improving laws and regulations, strengthening the supervision of farmland management subject, strengthening the publicity and education of farmers, improving farmers’ quality, perfecting farmers’ security system and optimizing operators’ insurance system, etc.
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    Research on the evaluation and spatio-temporal evolution of agricultural modernization development level in Jianghan plain
    ZHANG Wan-yu, WEI Jun-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 184-189.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.037
    Abstract （340）      PDF （1618KB）（142）       Save
    Based on the time section data of 11 counties （cities, districts） in Jianghan plain in 2010 and 2018, 13 specific indicators were determined from the 4 dimensions of agricultural modernization evaluation, and a comprehensive evaluation system of agricultural modernization development level in Jianghan plain was constructed, the entropy value method and exploratory spatial data analysis method were used to empirically analyze the agricultural modernization development level and temporal and spatial evolution characteristics in Jianghan plain. The results showed that the overall development level of agricultural modernization in Jianghan plain showed an upward trend, but the level of development was not high; The regional agricultural modernization development level and growth rate were quite different, and there were problems of unbalanced development within the region; The level of agricultural output made the highest contribution to the development of agricultural modernization in Jianghan plain, and the level of sustainable development had the fastest growth rate in supporting the development of agricultural modernization in Jianghan plain; The level of agricultural modernization development in each counties（cities,districts）showed obvious spatial correlation, and the characteristics of local spatial agglomeration were obvious.
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    Study on the comparative benefit of coarse cereals in Hebei province
    LIU Meng, ZHAO Wen-qing, CUI Ji-han, HOU Cai-xia, LI Shun-guo, LIU Jian-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 190-195.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.038
    Abstract （385）      PDF （1608KB）（106）       Save
    Hebei province is a big province of coarse cereals production, which has many kinds and great development potential, but the planting benefits is low. Based on the survey data of national millet and sorghum industry technology system information platform and production benefits of major grain growers in Hebei province from 2015 to 2019, the comparative benefit model （osculating value method） was used to analyze the comparative benefit of coarse cereals and bulk crops and the comparative benefit of coarse cereals in different regions. The results showed that Heilonggang area, Taihang mountain area, Taihang piedmont plain area, Coastal saline alkali plain area, Yanshan piedmont plain area and Yanshan mountain area were suitable for planting different coarse cereals; Different coarse cereals showed different benefits in different areas. Finally, some suggestions were put forward, which including strengthening the policy formulation of coarse cereals, building high-end brand of coarse cereals in Hebei province, increasing the research strength of coarse cereals, increasing publicity and expanding consumption, in order to provide theoretical reference for development of coarse cereals industry in Hebei province.
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    Operation rules and prospects of cut flower market in China
    LU Ji-liang, HE Yan-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 196-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.039
    Abstract （410）      PDF （2658KB）（366）       Save
    In this study, we collected the price data of the main producing areas of fresh cut flowers in China from 2005 to 2019, and summarized the change rule of the historical price of fresh cut flowers. According to the relationship between flower consumption and urban disposable income, flower e-commerce trading trend and CPI change, the future development and market trend of fresh cut flower industry were predicted.
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    Leisure agriculture,agricultural industry upgrading and agricultural economic growth from the perspective of big agriculture
    QIU Wei, LU Dong-ning
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 201-205.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.040
    Abstract （313）      PDF （2399KB）（141）       Save
    From the perspective of big agriculture, based on panel data of agricultural economic development from 2001 to 2018, by using unit root test, co-integration test, VAR model and impulse response function, taking leisure agriculture and agricultural industry upgrading as core explanatory variables, and agricultural environment regulation and agricultural human capital as control variables, the influencing mechanism of leisure agriculture and agricultural industry upgrading on agricultural economic growth were expounded.The study found that leisure agriculture had a continuous positive influence on the improvement of agricultural economy; The contribution of agricultural industry upgrading to agricultural economic growth was significant, showed a strong pulling effect, but in the later period, the trend was gradually weakened; The promoting effect of agricultural environment regulation on agricultural economic growth was relatively weak, and even showed time-delay effect; Agricultural human capital played a certain role in promoting agricultural economic growth, but its diminishing trend was obvious in the later period.
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    The dilemma and countermeasures of tourism poverty alleviation in the old revolutionary base areas under the background of the post poverty alleviation era
    WANG Hui-zhan, GU Jie-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 206-209.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.041
    Abstract （402）      PDF （1541KB）（178）       Save
    At present, with the successful completion of the task of poverty alleviation in China, the poverty alleviation strategy has changed from solving absolute poverty to alleviating relative poverty. For many old revolutionary base areas that mainly rely on the development of tourism to get rid of poverty in the stage of targeted poverty alleviation, the objects of tourism poverty alleviation in the post poverty alleviation era are more complex, and they face many difficulties in the identification, assistance and assessment of tourism poverty alleviation. Through the construction of tourism poverty alleviation identification standard system, on-demand assistance and comprehensive assessment and other measures, in order to improve the effect of tourism poverty alleviation in the old revolutionary base areas.
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    Exploration of the development path of sericulture in Hanyin county based on the “three one” industrial poverty alleviation model
    LI Huan-ji, CHEN Bei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 210-213.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.042
    Abstract （342）      PDF （1554KB）（127）       Save
    Industrial poverty alleviation is an important feature of the poverty alleviation development model with Chinese characteristics. Only by developing industries can we completely remove the “poor root” and get rid of poverty and become rich. In the process of exploring industrial development, Hanyin county had accurately found the industries suitable for local development and scientifically explored the “three one” industrial poverty alleviation model. The model emphasizes that under the guidance of the grass-roots party branch, people should make full use of the local resource endowment to find the correct industrial positioning, and help the industrial development with the help of poverty alleviation funds. By using this model, it will not only make important contributions to poverty alleviation in Hanyin county, but also provide inspiration and reference for the future industrial development of rural revitalization.
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    Research on endogenous kinetic energy and external empowerment of cultural tourism industry development based on rural revitalization
    LI Jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (20): 214-217.   DOI: 10.14088/j.cnki.issn0439-8114.2021.20.043
    Abstract （366）      PDF （1543KB）（318）       Save
    From the perspective of industrial function, the relationship between endogenous kinetic energy and external empowerment was analyzed in combination with the ownership of rural cultural tourism industry development interests. Villagers, as cultural inheritors, were the endogenous kinetic energy of the development of rural cultural and tourism industry. The government and society provide external empowerment, and it was necessary to strengthen external empowerment and stimulate the endogenous kinetic energy to promote rural revitalization and the development of cultural and tourism industry.
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    Reserch progress on callus induction and influencing factors of secondary metabolites of Panax ginseng
    QIANG Bao-bao, WEI Kun-hua, LIANG Ying, WEI Gui-li, ZHAO Li-chun, MIAO Jian-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 5-11.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.001
    Abstract （420）      PDF （1645KB）（387）       Save
    Panax ginseng is a valuable traditional Chinese medicine, which has good medicinal and edible value. The research progress of Panax ginseng callus induction was reviewed from the aspects of different explants and culture conditions that induced callus induction of Panax ginseng. The effects of tissue culture conditions, such as sugars, inorganic salts, CO2, plant growth regulator and inducers on Panax ginseng secondary metabolites （mainly ginsenosides） were summarized, and the factors that promoted the accumulation of Panax ginseng secondary metabolites were summarized, in order to provide reference methods and theoretical basis for tissue culture to improve the quality of Panax ginseng and the yield of ginsenosides.
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    Research status and prospect of kiwifruit crossbreeding in China
    XIA Wen-juan, ZHENG Li, SUN Lei-ming, XU Sheng-wu, SHI Shi-sheng, KE Jin-xian, YU An-an
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 12-15.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.002
    Abstract （735）      PDF （1579KB）（307）       Save
    Based on a large number of literature,the development of kiwifruit crossbreeding technology and the types of crossbreeding varieties in China in recent years were summarized, and the existing problems in the breeding technology were analyzed and prospected, in order to provide some reference for kiwifruit breeding and industrial development in China.
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    The evolution and development trend of straw return to field technology
    XIA Ying, FENG Ting-ting, WU Mao-qian, ZHANG Zhi-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 16-20.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.003
    Abstract （619）      PDF （1680KB）（338）       Save
    The development of straw returning technology in China is mainly divided into three stages, including initial stage, development stage and current stage. In the initial stage of straw returning technology, indirect returning technology such as composting and retting was mainly used, and direct returning technology was relatively weak; In the development stage, the direct straw returning technology became the main returning mode, and the parameters of straw returning technology were preliminarily clear. With the improvement of mechanization, the direct straw returning technology had developed rapidly at this stage. Based on the original straw returning technology, there were new straw returning technologies such as ditch burying and carbonization.
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    Research progress on antimicrobial active components and action mechanism of Cinnamomi ramulus
    WEI Lu-ling, ZHANG Miao, HUANG Piao-ling, TENG Jian-bei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 21-25.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.004
    Abstract （469）      PDF （1791KB）（306）       Save
    Cinnamomi ramulus is an indispensable medicine in many classic prescriptions in China. It mainly contains volatile oil, organic acids and coumarins. Cinnamaldehyde in the essential oil is the main effective component of Cinnamomi ramulus, and also the main active component for antimicrobial activity. Other components in Cinnamomi ramulus, such as cinnamic acid, coumarin, protocatechuic acid, eugenol and cinnamyl alcohol, also have antimicrobial activity activity. Through consulting the relevant literature, the main antibacterial components, antimicrobial effect and mechanism of action of Cinnamomi ramulus were sorted and analyzed to provide reference for clinical application, new medicinal value mining and resource development and utilization of Cinnamomi ramulus.
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    Effects of LncRNA on embryonic development
    ZHANG Yan-di, REN Hong-yan, BI Yan-zhen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 26-29.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.005
    Abstract （352）      PDF （1562KB）（129）       Save
    Long non-coding RNA （LncRNA） is a class of genomic transcripts with a transcript length of more than 200 nt but no protein-coding ability. Studies have shown that LncRNA can regulate gene expression at pre-transcriptional, transcriptional and post-transcriptional levels, and participate in epigenetic modification, X chromosome dose compensation and genomic imprinting. Embryonic development is a complex and orderly process, which is affected by a series of events, such as maternal to zygotic transition （MZT） and zygotic genome activation （ZGA）. Current studies suggest that LncRNA can affect embryonic development by participating in oocyte maturation, spermatogenesis, ZGA, and regulating the pluripotency of Embryonic stem cells （ESCs）. The research progress on the mechanism of LncRNA in embryonic development was reviewed, which laid the foundation for a comprehensive analysis of the mechanism of LncRNA heterogeneity in preimplantation embryos and its association with cell fate determination.
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    Preliminary reports on embryo rescue of interspecific hybrid between Oryza longistaminata and cultivated rice
    ZHA Zhong-ping, ZHENG Xing-fei, ZHOU Li, WANG Hong-bo, YIN De-suo, HU Jian-lin, DONG Hua-lin, YOU Ai-qing, XU De-ze
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 30-32.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.006
    Abstract （396）      PDF （2951KB）（194）       Save
    Hybrid fine cultivated rice restorer lines as female parent with Oryza longistaminata, young hybridized embryos 7~9 days after pollination were cultured in vitro. A total of 450 young embryos were inoculated, and a total of 438 well-developed and robust green seedlings were obtained. The embryo rescue efficiency was 97.3%. After 20 days, when the tissue culture seedlings were about 8~10 cm, the seedlings were transferred to the seedling tray through indoor hardening.10 days later, 438 seedlings were transplanted, and 434 survived with a survival rate of 99.1%.
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    Practice and discussion on stereo planting and raising mode of rice,frog,loach and fish
    CHEN Zhan-peng, LI Xing-hua, CAI Zheng-jun, ZHANG Wen-chao, ZHANG Zhong-nan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 33-34.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.007
    Abstract （424）      PDF （1547KB）（129）       Save
    Rice, frog, loach and fish stereo planting and raising is a new mode of paddy comprehensive planting and breeding, which has a good development trend in the Yangtze River Basin. Based on the practice of rice, frog, loach and fish stereo planting and raising in Huanggang from 2018 to 2020, the technical characteristic of this mode was introduced,development problems were analyzed,and suggestions for sustainable development were proposed, in order to provide basis for extension and application of rice, frog, loach and fish stereo planting and raising mode.
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    Analysis of the adaptability,stability and quality of new peanut variety Dupihong
    LI Ning, WANG Ming-hui, XIA Zhen-zhou, TANG Wen-chao, XU Hua-tao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 35-38.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.008
    Abstract （445）      PDF （1585KB）（155）       Save
    Based on the results of peanut variety screening test from 2018 to 2019, the variation coefficient, correlation coefficient and regression coefficient of main agronomic characters and yield of Dupihong and the control variety Zhonghua 16 were analyzed to compare their stability and adaptability, and the quality of Dupihong was analyzed to promote the popularization and application of this variety in production. The results showed that the high and stable yield of Dupihong were lower than that of the control variety, which may be related to its small grain peanut; The yield regression coefficient of Dupihong was smaller than that of the control variety, and the regression intercept was larger than that of the control variety, which showed that Dupihong had special adaptability and was more suitable for planting at low fertility level.Increasing the total number of fruits, productivity per plant, 100-fruit weight, 100-kernel weight and full-fruit weight rate could effectively increase the yield of Dupihong. Its main stem and side branches were longer, and the number of branches and fruiting branches were more, which had a certain inhibitory effect on its yield; The contents of sucrose, palmitic acid, behenic acid, stearic acid and arachidic acid in cortex ulmi red were lower than those in common peanuts; The protein content of Dupihong was 26.44%, which accorded with the standard of the protein content of edible peanut kernel （>26.0%）. From the comprehensive quality, Dupihong is more suitable for food processing and leisure peanuts.
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    Effects of different fertilization level and planting density on yield and main agronomic traits of soybean Zhongdou 44
    YANG Fang, WANG Ai-ai, HE Nian, ZHOU Yi, LIU Xin, CHEN Yong, DENG Jun-bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 39-42.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.009
    Abstract （387）      PDF （1554KB）（222）       Save
    Soybean variety Zhongdou 44 was used as the material, adopt a two-factor randomized block experiment to study the effects of fertilizer amount and planting density on the yield and agronomic characteristics of Zhongdou 44. The results showed that the difference between treatments with different planting densities reached a high significant level, the difference between treatments with different fertilizer rates did not reach a significant level, and the interaction between fertilizer rates and planting densities did not have a significant impact on the yield of Zhongdou 44. At the planting density of 250,500 plants/hm2 to 501,000 plants/hm2, the yield of Zhongdou 44 increased with the increase of planting density, the number of main stem nodes and the grain weight per plant decreased to different degrees with the increase of planting density, and at the planting density of 667,500 plants/hm2 the yield was the lowest. In Jingmen, when Zhongdou 44 was planted with 450 kg/hm2 compound fertilizer as base fertilizer, and the highest yield was obtained with planting density of 501,000 plants/hm2.
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    Study on the mesoscale characteristics and predcasts of a rainstorm disaster in Hunan province
    LIAO Chun-hua, LIU Hong-wu, XU Jing-yu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 43-48.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.010
    Abstract （321）      PDF （22201KB）（44）       Save
    Using conventional and encrypted observation data, radar data and NCEP re-analysis data, the mid-scale characteristics and the forecasting ability of different numerical prediction models in the course of an agricultural rainstorm were analyzed in the summer of 2018 in Hunan province.The results showed that the rainstorm process was composed frontal rainfall and warm zone rainfall, and there was no obvious rapids in both forms. More than 40 dBZ of strong precipitation echo band position was stable, forming obvious train effect, more than 50 dBZ of multiple strong echo monomers were constantly evolving, low-mass precipitation echo, middle-low-layer warm upper-cold atmospheric instability layer, higher VIL were favorable conditions for heavy precipitation. The mesoscale filtering experiment could better separate the mesoscale weather system, and different schemes had different effects. For frontal rainfall, both the large-scale model and the mesoscale model had better prediction effect on precipitation falling area, while the mesoscale model was more accurate to simulate precipitation intensity. For local heavy rainfall in warm zone, the large scale model forecast deviation was large and unstable, and the mesoscale model could capture some information, which could be referred to weather forecast.
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    Effects of cold waterlogged paddy field improvement on soil temperature and rice yield composition in Southeast Hubei
    YANG Han, XIA Xian-ge, HUANG Zhi-mou, QU He-ping, ZHANG Zhi-sheng, QIN Xiao-yin, LI Yu-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 49-52.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.011
    Abstract （373）      PDF （2262KB）（115）       Save
    In order to study the improvement effect of the warm field technology of “ditching drainage, alkali application to acid, micro-fertilizer control, micro fertilizer regulation and straw returning” on the improvement of cold soaked rice fields in Southeast Hubei, three treatments were set up as conventional technology mode （CK）,warm field technology model （T1） and micro-fertilizer improved technology mode （T2）,to clarify the influence of T1 and T2 on the soil temperature and yield composition of cold soaked fields. The results showed that compared with CK, T1 and T2 had a warming effect on the ground temperature of different soil depths; T1 and T2 could increase tiller, effective panicle and rice yield, T1 had the better effect of increasing rice yield; T1 could advance the growth period of rice, reduce risk of tight stubble in double cropping rice machine.
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    Study on the effect of extra root topdressing liquid fertilizer on one year sealing of newly-built tea plantation
    CHEN Qing-hua, ZHANG Qiang, DAI Ju-hui, HU Shuang-ling, LUO Hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 53-55.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.012
    Abstract （315）      PDF （1570KB）（113）       Save
    Field experiments were conducted to study the effects of extra root topdressing different liquid fertilizers of newly-built tea plantations. The results showed that extra root topdressing different liquid fertilizers could increase the survival rate of tea seedlings after transplanting, and the survival rate could reach 95.71%-98.57%. In one year, tea seedlings could reach plant height of 30 cm, stem diameter of 5-6 mm, 3-4 new branch, branch length of 20 cm, tree width of 25-30 cm, and root length of 8 cm. The effect of sealing small rows in the tea garden could be realized within a year.
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    Application effect of controlled-release mixed fertilizer reduced use for peanut
    LI Hong-mei, JIANG Xiang-guo, GUO Kai, HU Zhu-juan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 56-58.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.013
    Abstract （420）      PDF （1566KB）（195）       Save
    Based on the standard fertilization amount of peanut controlled-release mixed fertilizer, six fertilization treatments were set up. Treatment 1, 2, 3 and 4 were peanut controlled-release mixed fertilizer 750, 675, 600 and 450 kg/hm2 respectively, treatment 5 was ordinary ternary compound fertilizer 750 kg/hm2, and treatment 6 was no fertilization. The reduction and efficiency of controlled-release mixed fertilizer was investigated. The results showed that the yields of peanut controlled-release mixed fertilizer increased significantly. Compared with treatment 6, the yield of treatment 1, 2, 3 and 4 increased by 19.6%, 18.8%, 18.2% and 14.8%. Compared with treatment 5, treatment 1, 2 and 3 increased production more. With the decrease of the application level of peanut controlled-release mixed fertilizer, the peanut yield decreased, but the reduction was not significant. The profit of peanut controlled-release mixed fertilizer 600 kg/hm2 （reduced application by 20%） was higher than that of other treatments, which was an ideal scheme for reducing application and increasing efficiency.
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    Soil quality monitoring and diagnosis analysis of eggplant and Chinese cabbage rotation system under different fertilization treatments
    DU Lei, WANG Su-ping, ZHANG Gui-you, CHEN Gang, HUANG Xiang, JIANG Li, CHENG Wei-shun, LUO Xi, ZHANG Li-hong, HONG Juan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 59-63.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.014
    Abstract （289）      PDF （1690KB）（133）       Save
    The effects of three different fertilization treatments on the soil quality of the eggplant and Chinese cabbage rotation pattern were monitored and diagnosed by the field plot test. The results showed that through monitoring and diagnosis of soil physical and chemical properties of two crops,the trend of soil physical indexes in the eggplant season was coincident with the Chinese cabbage season. Fertilization could improve the soil physical properties, the recommended fertilization（OPT） treatment effect was more effective. Compared with the no fertilizer control（CK）,OPT treatment significantly reduced the soil bulk density,increased soil porosity,saturated water content and field water holding capacity （P<0.05）. All fertilization treatments had soil acidification,FP treatment was the most significant,and the soil pH was reduced by 13.01% compared with CK. The nutrients in each treatment increased with the extension of planting time. After the two rotation of the species,the electrical conductivity（EC）value, total nitrogen and cation exchange capacity（CEC） of the FP treatment and OPT treatment were significantly higher than CK（P<0.05）, but the exchangable calcium and magnesium contents were no significant difference with CK treatment（P>0.05）. The content of soil organic matter was significantly higher in the OPT treatment than in the FP treatment and CK（P<0.05）, which was 54.87% higher than CK. The results proved that replacing part of fertilizer with organic fertilizer could improve soil quality.
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    The soil fertility characteristics and comprehensive evaluation of tobacco-growing areas in Xiangyang city
    XU Rui, LU Hong-liang, WANG Zhen, GUO Li, CAO Li-jun, WANG Xiao-li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 64-68.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.015
    Abstract （377）      PDF （2156KB）（225）       Save
    In order to clarify the status of tobacco planting soil fertility in Xiangyang city, five nutrient indices of 961 soil samples from three tobacco-growing areas were tested and analyzed in 2019. The weight of each soil nutrient index was determined by principal component analysis method, and the comprehensive evaluation of soil fertility was conducted by using the membership function of fuzzy mathematics. The results showed that the proportion of soil pH in the suitable range was 41.73%. The contents of available potassium and phosphorus were relatively sufficient, reaching 60.87% and 66.29% respectively in the high level range. The proportion of organic matte in the high level range was only 18.73%, slightly less than the average. The proportion of alkali-hydrolyzable nitrogen in the high level range was 34.96%. The average of comprehensive evaluation indexes of tobacco planting soil was 0.58, the coefficient of variation was 31.28%. Comprehensive fertility of 80.85% tobacco planting soils was in the medium or above level. So most of the tobacco planting soil was suitable for high-quality tobacco cultivation in Xiangyang city.
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    Analysis of nutrient input and soil nutrient content in pear orchard of Lichuan city
    CHEN Qi-liang, YANG Xiao-ping, FAN Jing, MOU Bing-xi, ZHANG Jing-guo, HU Hong-ju, CHEN Ji-fu, TIAN Ya-qin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 69-72.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.016
    Abstract （382）      PDF （1558KB）（146）       Save
    In order to understand the nutrient input and soil nutrient content of pear orchard in Lichuan city, the fertilizer input and soil nutrient content of 18 representative pear orchard producing areas in Lichuan city were investigated and analyzed. The results showed that the average total input of N, P2O5 and K2O in pear orchard were 724.35, 349.80 and 382.95 kg/hm2 respectively, and the nutrient input ratio of N∶P2O5∶K2O was 1∶0.48∶0.53. The average input of N, P and K in fertilizer accounted for 88.40%, 89.54% and 88.44% of the total nutrient input. The average pH value of pear orchard soil was 5.12, and most of the soil was highly acidic. In the top soil of pear orchard, the content of organic matter and available phosphorus were above medium level, the content of alkali-hydrolyzed nitrogen was polarized, and the content of available potassium was below the middle level. With the deepening of soil layer, soil nutrient decreased, and soil nutrient content of subsoil layer was on the low side as a whole. For average yield 45 000 kg/hm2 as the target of pear garden in Lichuan, N, P2O5 and K2O were recommended to be 450, 225 and 450 kg/hm2 respectively, and organic nutrients accounted for 30%-50% of the total nutrients. Rational fertilization according to the rule of fertilizer requirement of pear tree, the soil pH was increased by applying alkaline fertilizer such as quicklime or plant ash, the soil organic matter content was increased by applying organic fertilizer and planting grass in orchard and the depth of basal fertilizer application was 30-60 cm.
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    In vitro rapid propagation of axillary buds of Atractylodes macrocephala
    LI Hong-ying, CHEN Fei-fei, YIN Hong-qing, QIN Da-ji, SUN Ju-zhi, YANG Yong-kang, XIANG Ji-qian, LI Ya-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 73-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.017
    Abstract （316）      PDF （1583KB）（127）       Save
    The axillary buds and shoot tips of Atractylodes Macrocephala Koidz were used as explants, and growth hormone （6-BA, NAA, etc.） with different concentrations were added to MS and 1/2 MS medium to induce differentiation and growth of the multiple shoots. Different concentrations of NAA and IBA were added to 1/4 MS medium for liquid rooting and strong seedling culture, and the cultured tube seedlings of Atractylodes macrocephala were transplanted. The results showed that the induction rate of tufted buds was 97.3% on the medium of 1/2 MS+1.5 mg/L 6-BA+0.4 mg/L NAA+0.3 mg/L IBA+0.6 mg/L GA3 under 18 h/d and illuminance 1 800 lx. The highest value-added multiple is 16; Medium：1/4 MS+0.4 mg/L NAA+0.2 mg/L IBA, illumination 18 h/d, illuminance 1 900 lx, rooting rate up to 98.9%, the average number of rooting 8.5 per shoot; The survival rate of seedlings was more than 95%. The survival rate of transplanted nursery was 94%.
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    Study on the method of seed dormancy breaking in non-heading Chinese cabbage
    GENG Qi-hua, SONG Li-ping, LIN Chu-fa, ZHANG Yu-yang, WANG Ai-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 76-80.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.018
    Abstract （455）      PDF （1690KB）（173）       Save
    Two kinds of non-heading Chinese cabbage seeds, M62 and Hanyou, were taken as research objects to explore the effects of different physical, chemical and hormone treatments on breaking the dormancy of non-heading Chinese cabbage seeds. The results showed that impregnated with 0.8% and 1.6% KNO3 could increase the germination rate of seeds to over 94%, and the seedlings grew vigorously. When GA concentration was lower than 1 000 mg/L, the dormancy was almost completely broken by soaking the seed for 24 h, and the seed germination rate was up to 99%. In the initiation treatment, it was found that 400 mg/L GA and 1.0% KNO3 could completely break dormancy and the germination rate reached 100%. The seed soaking with concentrated pure sulfuric acid can effectively break the seed coat restriction without harming the embryo, and make the germination rate of M62 seed reach 100% and Hanyou seed reach over 95%.
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    The influence of soil nutrient status on Ehima No.28 quality in Hubei province
    WANG Ce, SONG Fang, WANG Zhi-jing, HE Li-gang, JIANG Ying-chun, WU Li-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 81-86.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.019
    Abstract （434）      PDF （1622KB）（239）       Save
    Taking Ehima No.28, a new citrus variety as the test material, the fruit quality of 15 orchards in different producing areas in Hubei province was analyzed in 2019, the soil nutrient element content of the orchards was determined. The results showed that there were obvious differences in fruit quality between Ehima No.28 in the test orchard, including single fruit weight, thick skin, transverse diameter and longitudinal diameter. And total soluble solid content （TSS） ranging from 10.23% to 14.13%; The titratable acid content （TA） ranges from 0.47% to 1.06%; The content of vitamin C （Vc） ranged from 27.17 to 48.22 mg/100 g. The solid acid ratio ranges from 11.9∶1~30.1∶1. Test orchard soil also had different nutritional status, soil organic matter （OM）, alkaline hydrolytic N and effective Zn content in appropriate range, the content of rapidly-available P and rapidly-available K in most orchards was excessive, all orchard soil effective content of Fe, Mn and Cu effectively were beyond the appropriate range, the content of soil exchangeable Ca and exchangeable Mg is large, the soil effective B and Mo content is generally low; Correlation analysis showed that the fruit of TSS was significantly positive correlation with soil organic matter content, effective B content in the soil with the transverse diameter of fruit weight, fruit and longitudinal diameter was significantly positively related to both, Vc content and exchangeable Ca content in soil was significantly negative correlation, the skin thickness and soil effective Cu content is significantly negative correlation, alkaline hydrolysis N and available K content in soil was significantly positively related to soil organic matter content of OM and exchangeable Mg was significantly positively, this further indicates that the fruit quality of the new variety Ehima No.28 is significantly different under the influence of soil nutritional status, and various elements in the soil also interact with each other.
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    Survey report on germplasm resources of Vernicia fordii in China’s main producing areas
    SHANG Hai, HUANG Rui-chun, MI Xiao-qin, TANG Fang-you, HAN Hua-bo, YANG Hong-biao, LI Ping, OUYANG Li, YIN Hua-yan, WANG Cheng-nan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 87-90.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.020
    Abstract （351）      PDF （1589KB）（318）       Save
    The current germplasm resources of Vernicia fordii in China was explored. The V. fordii germplasm in Guizhou, Guangxi, Sichuan, Chongqing, Hunan, Zhejiang, Jiangxi and Guangdong were collected and surveyed in 2017—2018. The current germplasm resources of V. fordii in China was almost clear. The constructive suggestion and measurement for V. fordii germplasm protection was released based on the analysis of current resources.
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    Effects of the upright/pendulous comb of Jianhan chicken A line on their production traits
    SHEN Jie, HUANG Tao, PAN Ai-luan, WU Yan, PI Jin-song, LIANG Zhen-hua, SUN Jing, ZHANG Hao, PU Yue-jin, XIE Zi-han
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 91-93.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.021
    Abstract （388）      PDF （1996KB）（113）       Save
    In order to explore the effect of comb upright/pendulous of Jianghan chicken A line on production performance, the observation data, including the comb upright/pendulous, comb thickness and comb height, age and weight at the first egg, and egg number at 40 weeks were recorded. It was found that the frequency of the left and right pendulous of the comb were adjacent, accounting for 1/4 individuals with the upright comb. The statistical results by one-way anova analysis showed that the comb height and comb thickness were to a certain extent, could explain the reason of comb pendulous. Age at the first egg, egg number at 40 weeks have no significant association with the traits of comb upright/pendulous traits. This study shows that in the cage-rearing mode of Jianghan chicken A line, the upright/pendulous of their comb has no effect on their production performance.
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    Effect of Gynostemma pentaphyllum polysaccharide on renal tissue structure of aging mice induced by D-galactose
    LIU Xin-yong, LI Mu-lan, HUANG Jia-lin, WANG Xin-yu, TANG Xiao-chuan, WANG Xiao-li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 94-96.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.022
    Abstract （308）      PDF （2227KB）（153）       Save
    In order to investigate the effect of Gynostemma pentaphyllum polysaccharide （GPP） on the renal tissue structure of aging mice induced by D-galactose （D-gal）, paraffin section and HE staining were used to observe and analyze the glomerular diameter and renal capsule width in kidney. The results showed that in D-gal group, the glomeruli were significantly atrophied, the diameter of glomeruli became smaller, the lumen of renal tubules around the renal corpuscle was obvious, and the boundary of epithelial cells on the wall was unclear. GPP groups could significantly improve the structure of kidney damage, glomerular morphology tends to normal, the structure of renal tubules around the recovery. Statistical analysis showed that the glomerular diameter of GPP groups was significantly higher than that of D-gal group （P<0.05）, and there was no significant difference in glomerular diameter among the GPP groups. Compared with D-gal group, the width of renal capsule in 50 mg/（kg·d） group and 100 mg/（kg·d） group was significantly decreased （P<0.05）. It turned out that GPP could recover the kidney injury induced by D-gal, and the structural morphology tended to be normal; the diameter of glomerulus and the width of renal capsule could be improved, which indicated that GPP had a certain protective effect on the renal tissue structure of aging mice induced by D-gal.
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    Analysis and comparison of volatile components of Cinnamomum cassia Presl by HS-SPME-GC-MS
    WEI Lu-ling, XIE Feng-feng, HUANG Piao-ling, REN Jia-ni, TENG Jian-bei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 97-102.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.023
    Abstract （363）      PDF （2225KB）（431）       Save
    The volatile components of Cinnamomi cortex, Cinnamomi ramulus and fructus Cinnamomi were extracted by headspace solid phase microextraction （HS-SPME）. The volatile components of Cinnamomi cortex, Cinnamomi ramulus and fructus Cinnamomi were qualitatively analyzed by gas chromatography-mass spectrometry （GC-MS）. The results showed that 22 volatile components were identified from Cinnamomi cortex, 17 from Cinnamomi ramulus and 20 from fructus Cinnamomi. Cinnamaldehyde in Cinnamomi cortex, Cinnamomi ramulus and fructus Cinnamomi, and cinnamaldehyde in Cinnamomum cassia L. was the highest, accounting for 32.14%, 87.74% and 79.90%, respectively. There are similarities and differences in volatile chemical components and contents among Cinnamomi cortex, Cinnamomi ramulus, fructus Cinnamomi. This study provides a scientific basis for the further development and utilization of Cinnamomi cortex, Cinnamomi ramulus, fructus Cinnamomi.
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    Determination of 15 pesticide residues in edible vegetable oil by a QuEChERS-gas chromatography-mass spectrometry
    ZHANG Xian, ZHANG Jun-xian, HU Xi-zhou
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 103-106.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.024
    Abstract （344）      PDF （1707KB）（213）       Save
    To establish a method of QuEChERS-gas chromatography-mass spectrometry for detection of the 15 kinds of pesticide residues in edible vegetable oil. The sample was extracted and purified by QuEChERS method, extracted with acidified acetonitrile, purified by PSA and C18 matrix dispersion, simultaneously measured by the selected ion mode, and quantified by external standard method. The results showed that the good linear ranges of 15 pesticides were 0.050 0~0.500 0 μg/mL and the correlation coefficients were 0.995 3~0.999 3. The average recoveries were in the range of 83.4%~106.8%. The relative standard deviations were between 2.4% and 4.8%. The limits of quantification were in range of 0.030~0.088 μg/mL. The method is simple, accurate, and rapid, and it can meet the needs of simultaneous detection of 15 pesticide residues in vegetable oil.
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    Study on the DNS method for measuring the content of doped sucrose in tea
    ZHANG Xun, WANG Jing, DING Hua, LIU Jiao, YANG Jie, ZHOU You-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 107-111.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.025
    Abstract （946）      PDF （1609KB）（272）       Save
    A method for the determination of sucrose in tea was established. The tea was soaked in hot water, potassium ferrocyanide and zinc acetate were precipitated to remove interferences such as protein, hydrolyzed by hydrochioric acid,developed by 3,5-dinitrosalicylic acid （DNS）, and compared with spectrophotometer color determination. The results show that, take about 5 g of tea leaves, add 50 mL of tertiary water, place in a 45 ℃ water bath, shake and extract for 1 hour, take the tea soup, centrifuge at 3 000 r/min for 3 minutes, filter the tea soup, dilute the volume to 100 mL, measure the total sugar and reducing sugar by DNS method, and calculate the sucrose content by the minusing. In 5 g of tea, when 10 mg and 50 mg of sucrose were added, the recoveries were 117.60% and 91.22%, respectively. The relative standard deviation of 5 samples of the same tea was 2.47%, and the detection limit of the method was less than 2 mg/g. In the test of 20 tea samples, the artificially added sucrose can be clearly distinguished from normal tea samples. The method has good sensitivity and reproducibility, low operation requirements, and practical application value.
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    Extraction and content determination of imperatorin from Clausena lansinm root
    LU Zheng-lin, HUANG Rui-song, WUSHI Hai-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 112-115.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.026
    Abstract （361）      PDF （2087KB）（167）       Save
    The content rate of imperatorin from Clausena lansinm root was used as the study object, the chromatographic conditions such as chromatographic column, mobile phase and detection wavelength were explored, the preparation conditions of the sample solution were optimized by single factor experiment and orthogonal design, the content of imperatorin from Clausena lansinm root was determined. The chromatographic column was Phenomenex Gemini NXC18 （5 μm, 4.6 mm×250 mm）; The mobile phase was methanol-water （55∶45）; The flow rate was 1.0 mL/min and the detection wavelength was set at 300 nm with column temperature of 25 ℃. The extract methods was ultrasonic extraction, the fragmentation degree was acrossing the fourth sieve, extraction solvent was 100% methanol, and extraction time was 30 min. The linear range was 0.065 6~1.640 0 μg（r=0.999 8） and the average recovery was 97.2% with RSD of 0.89%（n=6） for imperatorin. The method can be used to determine the content of imperatorin in Clausena lansinm root.
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    Embedded data acquisition system for carbon fixation of bamboo forest
    HOU Zhi-kang, YANG Yu-quan, HAN Bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 116-121.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.027
    Abstract （394）      PDF （3596KB）（178）       Save
    Based on micrometeorology and vorticity correlation method, a remote real-time carbon sink data monitoring system based on embedded bamboo forest was designed in combination with the continuous and dynamic sensing information requirements of carbon flux. The hardware platform of the system used the core control module based on S5PV210. The software platform used embedded Linux operating system and QT as the main technology. The experimental results showed that the system, combined with the carbon sink monitoring system model, could provide an effective information monitoring means for carbon sink monitoring in bamboo forest areas, with good flexibility and real-time performance. The remote and real-time monitoring of the carbon flux in bamboo forest ecosystem will lay a foundation for establishing a quantitative monitoring platform for carbon emissions and carbon sinks in bamboo forest and publishing regional carbon budget information in real time.
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    Retrieval of soil moisture in Yanqi Basin based on TVDI and VSWI models with different vegetation indices
    DILIHUMAER·Ahanmujiang, YUSUFUJIANG·Rusuli, MAIHEMUTIJIANG·Weijidan, ZHANG Fa, CHENG Shi-xue, YAXIAER·Aisikeer
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 122-129.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.028
    Abstract （568）      PDF （14675KB）（66）       Save
    This article take the Yanqi Basin in Xinjiang as an example, in this paper Landsat 8 OLI data was used to calculate the normalized vegetation index （NDVI）, enhanced vegetation index （EVI）, modified soil adjusted vegetation index （MSAVI）, soil adjusted vegetation index （SAVI） and land surface temperature （Ts）, establishes TVDI model and VSWI model were applied to retrieve the soil moisture of Yanqi Basin, compared to the adaptability of different soil moisture retrieval models and the spatial distribution characteristics of soil moisture in Yanqi Basin were further analyzed. The results show that establishing the spatial characteristics of NDVI-Ts, MSAVI-Ts, SAVI-Ts and EVI-Ts and the scatter points of NDVI-Ts, MSAVI-Ts, SAVI-Ts and EVI-Ts conform to the relationship of triangles with R2 above 0.83; TVDI and VSWI were calculated by NDVI, MSAVI, SAVI and EVI have negative correlation with RSM data of 0~10 cm soil relative humidity, and the two models showed high consistency. TVDI and VSWI retrieved by MSAVI have the highest correlation,R2=0.296,R2=0.235,respectively; The Yanqi Basin was mainly featured with semi-arid （0.6<TVDI, VSWI<0.8） and arid characteristics（TVDI, VSWI>0.8）; The spatial pattern of soil moisture： Normal phenomena appear in the middle of the Yanqi Basin, and arid areas mainly distributed in the southeast and northeast. TVDI and VSWI models are applicable for the inversion of soil moisture in the Yanqi Basin and the research results provide better reference information for the study of water resources and ecological environment in Yanqi Basin.
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    Characterization of sap flow of wood borer attacked trees in relation to environmental factors
    YANG Tao, WU Bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 130-134.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.029
    Abstract （364）      PDF （3963KB）（122）       Save
    This research aims to explore the response relationship of trunk sap flow to environmental factors such as air temperature, relative humidity and wind speed, analyze the characteristics of sap flow under the erosion of stem borers, and make preliminary explorations for the application of sap flow research in pests and diseases. The self-developed heat pulse velocity （HPV） sap flow meter was used to measure the daily sap flow in the trunk of the street tree Sapindus mukorossi, Michelia chapensis, and Ginkgo biloba, and the environmental factors such as temperature, humidity and wind speed are simultaneously measured by the ecological environment parameter data acquisition instrument. The healthy wood sap flow of each tree species was significantly correlated with factors such as temperature, humidity, and saturated vapor pressure deficit （VPD） （P<0.05）, while the change of the damaged wood sap flow was weakly affected by environmental factors, and the peak sap flow is lower than healthy wood. The consistency index D between the affected and healthy trees were 0.897, 0.913, and 0.937, respectively. RMSE were 8.561, 4.617, 2.594, and MAE were 5.527, 3.153, 1.663. The HPV method can effectively measure the dynamic changes of tree sap flow. The daily pattern of stem sap flow of the wood damaged tree changed significantly, and the degree of the response to environmental factors such as temperature, humidity, and VPD was weakened.
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    Research of method of quality traceability in grain logistics process
    PENG Yuan, LIU Shen, ZHAO Bi, DONG Ting-ting, ZHANG Dong-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 135-139.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.030
    Abstract （318）      PDF （3433KB）（103）       Save
    During the transportation of bulk grain, it may be transported multiple times by trucks, trains and ships, many times of loading and unloading, changes in transportation methods, changes in the long-distance external environment, will affect the quality of grain. It is difficult to obtain information during the transportation process. Assess the risk of changes in food quality. Existing research work mainly focuses on the business process of grain logistics and information system framework, and does not focus on the actual food logistics business scenarios. This article mainly discusses the quality traceability method in the grain logistics process, builds a grain logistics traceability information system based on the inventory grain identification code, and is dedicated to solving the key issue of quality traceability in the bulk grain in transit logistics process.
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    Polymorphism and bioinformatics analysis of MC4R gene in Macheng black goat
    GUO Shuai, YANG Juan, LIU Shi-yu, YANG Feng-li, XIONG Qi, WANG Zhao-xiong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 140-145.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.031
    Abstract （348）      PDF （5144KB）（172）       Save
    MC4R （melanocortin receptor-4） is a G protein coupled receptor secreted by hypothalamus, which regulates feed intake and body weight of animals. In order to study the genetic specificity of Macheng black goat, MC4R gene polymorphism was detected by sequencing, and biological characteristics of MC4R were predicted by bioinformatics analysis. The results showed that there were 8 mutation sites of MC4R gene in Macheng black goat, namely C144T, T189A, A612G, C617A, C649G, C684A, T784A and C813A. According to the analysis of physicochemical properties, the amino acid sequence of MC4R contains a hydrophobic region and has seven transmembrane structures. The secondary structural elements encoding the protein are mainly the α Helix and irregular curl. The amino acid sequence alignment of MC4R among different species showed that the sequence similarity between Macheng black goat and sheep was 97.82%, and that between Macheng black goat and cattle was 94.50%, indicating that MC4R was a conserved protein and plays an important role in animal growth and development. In this study, eight MC4R gene mutation sites were obtained by sequencing, and bioinformatics analysis was carried out, which provided a theoretical basis for studying the molecular mechanism of MC4R and its natural mutants affecting goat growth and metabolism.
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    Genome-wide identification of the SPL gene family in Rosa chinensis and expression analysis
    ZHANG Yu-xin, LI Hui, ZHANG Meng, SONG Xiang, YU You, YU Ma, CHEN Hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 146-151.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.032
    Abstract （571）      PDF （7622KB）（334）       Save
    RcSPL family members were identified from the genome of Rosa chinensis, and phylogenetic and evolutionary analysis, gene structure analysis and expression pattern analysis of transcriptome level were applied for further analysis. The results showed that seventeen SPL genes named RcSPL1~RcSPL17 in Rosa chinensis were found out and they were divided into Ⅰ~Ⅷ subgroups according to the phylogenetic analysis. The original prediction of cis-acting element found that the upstream 2 000 bp of the RcSPL gene contained 2~13 MYB and MYC sites. Expression analysis found that RcSPL1 might regulate rose pollen formation, while RcSPL3 might be involved in regulating Rosa chinensis flowering time. Subgroup II carry the most conserved motifs and exons and may perform important functions during flowering. RcSPL genes could interact with MYB and MYC to regulate flower growth and development.
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    Study on ecological compensation standard based on opportunity cost and ecosystem service value accounting：A case study of Xin’an river basin
    DAI Jia-yuan, HU Shu-heng, ZHANG Bei-er, YANG Qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 152-157.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.033
    Abstract （430）      PDF （1620KB）（121）       Save
    Ecological compensation is an innovative environmental policy, which can improve the quality of ecological environment and enhance the basin’s capacity for sustainable development by coordinating the economic interests of all subjects. Thus, it’s of great importance to research on ecological compensation standard according to local conditions. Taking Xin’an river basin as an example, this paper firstly carried out the opportunity cost of Huangshan city in the upper reaches of the river basin, then calculated the total ecosystem service value according to the revised compensation factor of Xin’an river basin on the basis of defining the compensation range of ecosystem service function in the basin, and finally introduced the development stage coefficient model to determine the threshold value of ecological compensation standard. The results show that the lower limit of ecological compensation in Xin’an river basin from 2013 to 2017 is 0.524 billion~1.265 billion yuan, and the upper limit of ecological compensation is 2.406 billion~3.422 billion yuan. Based on the results and the current situation of ecological compensation and the needs of economic and social development, some countermeasures and suggestions for determining ecological compensation standard, rising compensation funds and building the legal system of river basin in the future are put forword.
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    Spatial distribution,evolution and spillover effect of urban innovation capacity in Hunan province
    SHI Song-lin, WEN Yan-ping, SONG Xiao-qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 158-165.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.034
    Abstract （363）      PDF （7665KB）（180）       Save
    With the development of economy and science and technology, urban innovation ability has gradually become the main driving force of urban development and an important factor for cities and countries to gain competitive advantages and rapid development. Taking 14 prefecture-level cities in Hunan province as examples, the development level spatial distribution and spatial evolution characteristics of urban innovation ability of prefecture-level cities in Hunan province from 2009 to 2018 were discussed from five aspects：innovation input, innovation output and effectiveness, innovative talents and science and education resources, industrial technology innovation ability and the level of openness and collaboration. The spatial econometric model （SLM, SEM） was useded to analyze the spatial spillover effect of urban innovation ability on economic development. The results show that, The city of Hunan province urban innovation ability had improved significantly, the overall spatial had been continuously reduced, and the spatial agglomeration situation had weakened. The city innovation ability had obvious zonality gradually increasing from west to east, and the Chang-Zhu-Tan city group was the core area of innovation development in the province. The improvement of urban innovation ability in cities and neighboring cities had a positive spillover effect on economic development.
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    The integration and upgrading of agricultural resources under the background of urban integration in Wuhan metropolitan area：Take Tianmen city as an example
    ZHONG Ming, XU Bi-jing, GUO Shao-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 166-170.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.035
    Abstract （403）      PDF （1567KB）（121）       Save
    Based on the strategic demand of the co-urbanization development of Wuhan metropolitan area, this paper discussed the integration and upgrading path of regional agricultural resources under the background of the co-urbanization development, and taked Tianmen city, a member of “1+8” Wuhan metropolitan area, as the research object, based on the principle of highlighting local characteristics and docking effective demand, this paper analyzed the present situation and restrictive factors of the industrial development of the base, so as to formulate the development countermeasures of agricultural industry in the “1+8” region of Wuhan metropolitan area, and realize the efficient utilization of resources, the development of industrial clusters, complete standard system, the promotion of the integration of three industries, strong regional brand and the integration into the business circle through the research of industrial positioning, industrial planning and development measures. It also put forward relevant strategies for connecting the urbanization development of Wuhan metropolitan area and the promotion of agricultural industry, in order to provide reference for the implementation of the regional development layout of “one main leading, two wings driving and global coordination” in Hubei province.
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    Managing villages：The practical logic of village collective management：A case study based on Zhejiang province
    HUANG He-xiao, ZHANG Ming-sheng, LI Bao-zhi, ZHU Qi-biao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 171-176.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.036
    Abstract （410）      PDF （1670KB）（222）       Save
    Under the discourse of good rural governance, managing villages as the core connotation of rural governance has aroused more discussion. As the main body of managing villages, village collective has the advantages of mobilization, organization and resource allocation. Based on the analysis of the management situation of 10 villages in Zhejiang province and the relative control degree of village collective, this paper put forward two types of managing villages：Collective management and cooperative management. Among them, the type of collective operation has always been the main body of managing villages, and the type of cooperative operation between village and enterprise has the trend of accelerating. After a comprehensive analysis, three enlightenment are put forward. Firstly, enterprises entering villages should try their best to take the collective of village community as the “agent” to reduce the relationship cost. Secondly, the village collective needs to promote the realization of the dual wheel drive of rural governance and managing villages. Lastly, village management needs overall planning to activate rural resources.
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    Construction of evaluation index system of the influence of rural financial development on rural economic growth
    ZHANG Jun-you
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 177-182.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.037
    Abstract （470）      PDF （2271KB）（407）       Save
    In order to study the impact mechanism of rural financial development on rural economic growth, explore the relationship between them, and promote the positive interaction between rural finance and rural economic growth. Based on the summarization of relevant researches of scholars at home and abroad, this research established an evaluation index system for the impact of rural financial development on rural economic growth in the case of H province, introduced the VAR vector autoregressive econometric analysis method, and built a model for both. The relationship between the two was described to quantitatively analyze the impact of rural financial development on rural economic growth. Through the test of cointegration relationship, there is a long-term equilibrium relationship between rural financial development and rural economic growth. Rural finance development plays an important positive impact on rural economy growth. The most important impact on rural economic growth is the scale of rural financial development factors, through the impulse response analysis, it is found that the development level of rural financial in H province lags behind the level of rural economic growth. Combined with the problems in rural economic growth and financial development in H province, the corresponding countermeasure recommendations are put forward.
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    Research on performance evaluation of agricultural science and technology achievements transformation funds based on improved analytic hierarchy process
    ZHANG Rong-qing, WANG Ke-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 183-187.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.038
    Abstract （301）      PDF （1874KB）（149）       Save
    This research constructed a performance evaluation index system including four first-class indexes and eleven second-class indexes. At the same time, genetic algorithm was used to optimize the consistency index of the traditional analytic hierarchy process, and a performance evaluation model of agricultural scientific and technological achievements transformation funds based on the improved analytic hierarchy process was constructed. The model was used to evaluate the transformation performance of agricultural scientific and technological achievements and the transformation performance of agricultural scientific and technological achievements in different technical fields. The results showed that the transformation process of agricultural scientific and technological achievements in China encountered bottlenecks, and the transformation efficiency of planting technology was the highest.
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    Comparative research of international competitiveness of China’s maritime transportation service trade：From the view of value added trade
    XIE Yu-han, WANG Rui, WANG Ya-lun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 188-193.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.039
    Abstract （409）      PDF （1621KB）（751）       Save
    Based on the WIOD input-output data from 2005 to 2014, this research calculates the export domestic added value of China’s marine service trade with eight other major sample countries through the non competitive input-output model, and evaluated the international competitiveness of China and its sample countries based on the adjusted IMS and RCA. The results show that the export domestic added value of China’s maritime service trade increases rapidly, but there is still a big gap with the United States. The growth rate of China’s IMS index is faster than that of France, Germany and Japan successively. The development potential of maritime service trade is great, but the RCA index is at a low level, and the maritime service trade has no competitive advantage. On this basis, it puts forward the countermeasures and suggestions to enhance the international competitiveness of China’s maritime service trade.
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    Internal market integration,external market integration and regional economic development gap：An empirical study based on system GMM
    YIN Jing-yu, WANG Chen-chen, DENG Shu-hong, ZHOU Xiao-ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 194-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.040
    Abstract （358）      PDF （1630KB）（345）       Save
    In order to find out the main reasons that affect the regional economic development gap in China, accelerate the realization of balanced economic development, firstly, by defining the research scope of market integration of key variables, the level of internal market integration and external market integration after segmentation was measured. Secondly, by constructing the dynamic panel model and using the generalized moment estimation GMM method, the impact of China’s regional market integration on regional economic development gap was demonstrated. Finally, based on the research perspective of market integration, some policy suggestions were explored to narrow the regional development gap. The empirical results show that the internal market integration has a nonlinear effect on the regional economic unbalanced growth. And the external market integration process is obviously faster than the internal market integration process, and different regions due to the implementation of different economic policies, there have been different stages of economic development momentum. At the same time, due to the evolution of the national market integration process in the different stages of development, and the region economic development difference of internal structure is not the same, and interaction of internal and external market integration to the coordinated development of regional economic has differences, namely the eastern and central regions play a role of the alternative, and the eastern region effect is more obvious; And the western region has played a complementary role.
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    Study on perceiving image of tourism destination of Qian Tomb based on the web text mining
    LI Hong-bo, LIU Long-long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 201-205.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.041
    Abstract （367）      PDF （2870KB）（314）       Save
    Tourism destination image has a direct bearing on tourists’ consumption decisions. An accurate understanding of tourists’ perception of tourism destination image is the basis for effectively improving the tourism destination image. Base on a sample online travel notes in Ctrip and the web text mining with analytic tools of ROST CM, this article analyzed the perceiving image of tourism destination of Qian Tomb from the following aspects： Word frequency, semantic web and emotion. Finally, the results were discussed and some suggestions to improve perceiving image of tourism destination of Qian Tomb were given accordingly.
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    Talent revitalization：The realistic dilemma and breakthrough path of rural revitalization in Hubei province
    WANG Xin-yue, WANG Qing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 206-210.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.042
    Abstract （524）      PDF （3207KB）（349）       Save
    As a large agricultural province,talent revitalization is an important strategic task for Hubei province to adapt to the new stage of social development. Through field research,it is found that in the process of promoting the revitalization of talents in Hubei province, there are many restricting factors, such as the loss of young and middle-aged talents, the lack of high-quality professionals, the backwardness of rural education resources, the lack of leadership ability and so on. In view of the practical difficulties of rural revitalization in Hubei province, it puts forward the corresponding breakthrough paths, such as speeding up the training of new professional farmers, vigorously promoting the “three townships project”, exploring the customized mode of college students’ village officials, and establishing a multi-level education and training system.
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    Research on influencing factors of poverty alleviation effect of rural “agriculture+finance+e-commerce” under the rural revitalization strategy：A case study of Qianshan city
    ZHANG Feng-shan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (21): 211-216.   DOI: 10.14088/j.cnki.issn0439-8114.2021.21.043
    Abstract （406）      PDF （1604KB）（136）       Save
    Poverty alleviation in rural areas is an important content of rural revitalization strategy.Under the guidance and support of the national poverty alleviation policy,the “agriculture+finance+e-commerce” model launched by Qianshan city has achieved good poverty alleviation effects, and the research on its specific impact factors is of far-reaching significance. Based on the field survey data of Qianshan city,this study analyzed the poverty alleviation effect of “agriculture + finance + e-commerce” in Qianshan city, and focused on the qualitative analysis and empirical test of the factors affecting the poverty alleviation effect of this model. It is found that the poverty alleviation effect of “agriculture+finance+e-commerce” in the rural areas of Qianshan city is jointly affected by a variety of factors, such as farmers’ personal characteristics,policy characteristics, financial and e-commerce enterprise characteristics, among which farmers’ personal characteristics represented by traditional ideas and education have the most greatest impact,and factors such as the utilization efficiency of poverty alleviation funds, the symmetry of credit information, the choice of commercial bank credit, and the amount of agricultural insurance purchased by farmers in the characteristics of policies and financial and e-commerce enterprises are also more significant. The influence of other factors is relatively weak.
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    Research progress of virus like particles vaccine
    TAN Kun, ZHANG Li-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 5-10.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.001
    Abstract （683）      PDF （1654KB）（396）       Save
    Virus like particles（VLPs） vaccine can form a protein particle structure similar to the virus by expressing the structural protein assembly of the virus, simulate the process of the virus entering the body, activate the immune response of the body, so as to achieve the purpose of resisting the virus. VLPs vaccine has become a popular choice for vaccine preparation because of its high efficiency and safety. Classification of VLPs vaccines, advantages, expression systems, purification assembly, identification methods, immune pathways, modified vaccine and other aspects were reviewed in order to provide reference for the study of VLPs vaccines.
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    Research progress and review of heritage activation in China
    LIN Bi-xia, WEI Feng-qun, ZHAO Jing-xue
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 11-18.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.002
    Abstract （690）      PDF （2749KB）（626）       Save
    Based on the CNKI database of papers related to heritage activation from 2002 to October 2020,using CiteSpace visual analysis software, combined with conventional statistical methods and qualitative analysis methods of literature, the research progress of heritage activation was analyzed. The results showed that, first, the research was divided into primary stage （2002—2005）, in-depth stage （2006—2010） and active stage （after 2011）. Second, productive protection, traditional villages and rural revitalization were the hot spots of heritage activation research in recent years; The most prominent keyword was living culture, the longest lasting was intangible cultural heritage, and the latest was traditional villages and digitization. Third, the government and enterprises were strong stakeholders, inheritance groups and local residents were weak stakeholders. Scholars mainly chose intangible cultural heritage, ancient sites and traditional villages, agricultural cultural heritage, industrial cultural heritage and linear cultural heritage as the activation objects, and adopted such activation methods as restoration and inheritance activation, tourism industry activation, high-quality characteristic products activation and digital activation. Future research on heritage activation shouldemphasize the introduction, crossover and integration of multi-disciplinary fields, pay attention to the interaction between stakeholders of heritage activation, the comparative study of multiple cased on the geospatial scale, and the research on spatio-temporal dynamic monitoring and sustainable maintenance mechanism of heritage activation, and pay attention to the activation efficiency.
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    Research status and prospect of rural land trusteeship in China
    CHEN Xin, LIU Xin-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 19-23.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.003
    Abstract （605）      PDF （2150KB）（264）       Save
    Based on CNKI core journals, CSSCI and CSCD databases, review the literature on rural land trusteeship from 2000 to 2019, and use the literature review method to sort out the empirical research on the connotation, model, influencing factors, source of benefits, and effectiveness of rural land trusteeship in China,and promote the development of land trusteeship related suggestions.Through summarizing and sorting out the empirical research and related countermeasures of rural land trusteeship in China, analyze the deficiencies of the existing literature on rural land trusteeship research, in order to provide reference and reference for the development of rural land trusteeship in the country and later researchers. The result shows thatfrom 2000 to 2019, the number of documents on rural land trusteeship has been increasing year by year. The keywords in the literature are land trusteeship, land management, agricultural production, agricultural machinery services, and scale management; different scholars have commented on rural areas in different regions. The research on land trusteeship has differences in connotation, models, influencing factors, sources of benefits, and effectiveness. According to the current status of the development of local land trusteeship, different strategies to promote the healthy development of land trusteeship have been proposed. ①Strengthen the research on the comparison of benefits of rural land after trusteeship and before trusteeship. ②There is a lack of research on the distribution methods of rural land trusteeship benefits. ③In-depth research on risk prevention and control of rural land trusteeship.
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    Analysis of combining ability of 13 new sterile lines in rice at heading date
    CAI Xing-xing, LI Xing-hua, WANG Huan, ZHANG Sheng, ZHOU Nan, RAO Deng-feng, ZHOU Qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 24-26.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.004
    Abstract （356）      PDF （1605KB）（175）       Save
    A total of 182 F1 were obtained by combining 14 restorer lines with strong combining ability with 13 newly selected sterile lines with excellent comprehensive agronomic traits, so as to investigate the combining ability of 13 sterile lines at heading date. The results showed that B8 had the best general combining ability, followed by B1, B4 and B7, and B10, B11 and B12 had the worst general combining ability. Hybrid rice combinations of B8, B1, B4 and B7 were more likely to be bred 3 days earlier than those of the control, and combinations of B2, B5, B10, B11, B12 and B13 were not easy to be bred 3 days earlier than those of the control. The heritability of heading date was higher, and the correlation coefficient between heading date and general combining ability was 0.71.
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    Breeding and application of good Honglian type glutinous rice CMS line Hongnuo 1A
    TANG Jian-min, ZHU Cai-zhang, TANG Han-hua, CAO Qin-yun, GONG Wei-hua, MAO Hui-min, FU Cheng-jun, XIE Chun-pu, GAO Xiang, ZHOU Qi-tao, WANG Xiao-wen, YANG Wen-jun, ZHENG Ming, WANG Wen, TANG Ya-dong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 27-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.005
    Abstract （443）      PDF （1599KB）（295）       Save
    Hongnuo 1A is a Honglian glutinous rice sterile line, bred by using Yuetai A as female parent and （Yuetai B//Yuetai B/Jingnuo 6） F2 multiple excellent glutinous plants as male parent for testing, and through multi-generation directional selection and continuous backcross. It has the characteristics of complete and stable male sterility, high outcrossing rate, good glutinous grain quality, high commbning ability, and desirable integrated characters. In August 2018, it was registered by Hubei Crop Variety Approval Committee. Its breeding process, major characteristics, techniques of multiplication and hybrid seed production were introduced.
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    Screening for rice varieties and seeding quantity in driect-seeded,double-season rice system
    ZHANG Qun, XIA Xian-ge, CHEN Zhan-peng, CHEN Jie, CAO Zhi-gang, JIN Hong-mei, ZHANG Wen-chao, TU Jun-ming, CHEN Jian-ping, ZHANG Zhi-sheng, HU Feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 31-33.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.006
    Abstract （476）      PDF （1610KB）（228）       Save
    Using conventional early rice varieties Gangzaoxian 11, Gangzaoxian 13 and Xinliangyou 9011 bred by Huanggang Academy of Agricultural Sciences as research objects, the screening for rice varieties in driect-seeded, double-season rice system was conducted. The results showed that, Gangzaoxian 11 has a suitable growth period, high production safety, suitable plant height, high yield, and high fertilizer utilization. It is suitable for rice varieties in driect-seeded,double-season rice system. This experiment carried out a different seeding rate experiment on Gangzaoxian 11. The results showed that, the early rice season of Gangzaoxian 11 at 150 kg/hm2 seeding rate+ late rice season at 180 kg/hm2 seeding rate, the two seasons have the highest economic benefits.
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    Characteristic analysis of Quanyou series high-quality middle-season rice varieties suitable for planting in Hubei province
    XU Hui, LI Chun-feng, XU Zheng-meng, SHI Fang-chun, XIE Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 34-37.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.007
    Abstract （2126）      PDF （1590KB）（4331）       Save
    In this paper, the basic characteristics of Quanyou series of high-quality rice varieties, which were suitable for planting in Hubei ecological areas （except Wuling Mountain Area） and approved by the provincial government in 2020, were analyzed. The rueslt showed that, there were 12 suitable rice varieties. Viewing from the main body of variety breeding, the varieties mainly selected by enterprises;Quanyou series of high quality hybrid combinations generally had large grains per panicle and high seed setting rate, but the effective panicle number was general, and the yield per panicle contributed more in unit yield. Quanyou series of high quality hybrid combinations could be selected and bred varieties with good rice quality and blast resistance, but breeding varieties resistant to bacterial blight and brown planthopper remained to be strengthened.
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    Breeding and cultivation technique of a new maize variety Guitiannuo 218 with quality and high yield
    LIU Ya-li, CHEN Kun, GONG Xue, SU Qi, TENG Hui-sheng, YANG Yao-jiong, ZHONG Chang-song, LU Sheng-qiao, ZHANG Shu-kuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 38-39.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.008
    Abstract （527）      PDF （1571KB）（235）       Save
    Guitiannuo 218 is a new sweet waxy corn variety. It was bred by the waxy inbred line QSW07b-23 as female parent and wxwxsh2sh2 inbred line 604MHZ-20 as male parent. It was approved by Guangxi Crop Variety Approval Committee in 2016. In addition to good commodity quality, excellent edible quality, high yield, strong disease resistance and wide adaptability, this variety is an important type of fresh corn in China because of its F2 ear waxy and sweet kernel ratio of 3∶1, taking into account the flavor of waxy corn and sweet corn and the taste of consumers in the north and south.
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    Effects of in situ returning of Brassica campestris L. waste on soil microbial functional diversity in the next season
    XU Da-bing, XIE Yuan-yuan, SI Guo-han, YUAN Jia-fu, ZHAO Shu-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 40-46.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.009
    Abstract （322）      PDF （4198KB）（223）       Save
    To reveal the effect of vegetables waste in situ returning on soil microbial function in the next season, the field experiment was carried out to research the effect of vegetables waste in situ returning on soil available carbon and nitrogen, and microbial carbon source utilization capacity. Three treatments set as follow： Conventional fertilization without returning（CK）, conventional fertilization with vegetables waste returning （FS） and conventional fertilization reduced by 30% with vegetables waste returning （FS-30N）. The results showed that compared with CK, within 60 days, the content of FS and FS-30N treatments on soil nitrate nitrogen increased by 6.51%~21.18% and 3.79%~18.99%, respectively, but the content of soil active organic carbon and the ability of soil carbon source utilization decreased. The diversity of soil microbial function changed significantly after the application, but the difference between the three treatments decreased after 60 days. Within 60 days, the utilization ability of carbohydrates and carboxylic acids of soil microorganisms was highest. Effect of carbohydrate and polymer metabolism of nitrate nitrogen was much more than that of active organic carbon. The carbon sources showed the greatest impact on the shannon diversity index（H）, and the least impact was obtained by average degree index（E）. Microbial functional diversity was most influenced by polymers, carbohydrates and amino acids all of carbon sources. Therefore, in situ returning of Brassica campestris L. reduced the soil microbial carbon source utilization capacity and functional diversity in a short period, but the decreasing trend was slowed down in the later period （60 days）, and the effect of 30% reduction of chemical fertilizer was much more than others.
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    Spatial variability and evaluation of soil properties and macroelements in lotus field of Guangchang county,Jiangxi province
    ZHAO Yue, YANG Liang-bo, PEI Jia-chen, LIU Dong-bi, WU Mao-qian, TANG Ji-ping, ZHENG Xing-wen, XU Jin-xing, JIE Zhi-hui, LAI Ke-qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 47-50.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.010
    Abstract （383）      PDF （2962KB）（127）       Save
    Field sampling analysis and geostatistical methods were used to study the soil attributes and the content of macroelements and their spatial variability in seed lotus fields in Guangchang county, Jiangxi province. The results showed that the average pH of lotus field soil in Guangchang county was 4.92, which was acidic soil, and the variation was small in the planting area of seed lotus. The average content of soil organic matter was 38.20 g/kg; The average contents of total nitrogen, total phosphorus and total potassium were 2.16, 0.65, 24.70 g/kg, respectively; The average contents of alkali hydrolyzable nitrogen, available phosphorus, available potassium and slowly available potassium were 132.00, 41.20, 109.00, 1 000.00 mg/kg, respectively. According to the temporary classification standard, the contents of soil organic matter and available phosphorus were higher, and the contents of alkali hydrolyzable nitrogen and available potassium were lower. There were significant differences in the spatial distribution of soil organic matter and different forms of nitrogen, phosphorus and potassium. The change trends of organic matter, total nitrogen and alkali hydrolyzable nitrogen content were similar, that is, Yiqian town in the south and Changqiao town in the east were higher, and Ganzhu town in the north was lower; The content of total phosphorus and available phosphorus in Changqiao town and western Toupo town was higher, and that in Yiqian town and Ganzhu town was lower; The content of available potassium was in Xujiang town and Chishui town in the middle; The content of slowly available potassium in Changqiao township was higher than that in Yiqian town and Ganzhu town.
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    Effects of different passivators on available cadmium contents in paddy soil and its accumulation in rice
    FENG Jing-yun, NIE Xin-xing, LIU Bo, LI Fang-min, YANG Li
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 51-55.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.011
    Abstract （375）      PDF （1686KB）（256）       Save
    Three passivators （calcium and magnesium oxide （NL）, biochar （B） and carbonate rock （SRC） were used to pollute farmland soil with mild （S1） and moderate （S2） cadmium （Cd） in Daye city. Field experiments were carried out to discuss the effects of different passivators on available Cd contents in soil and Cd contents of rice grains. The results showed that all the three passivations significantly reduced the contents of Cd in rice grains. Compared with the control, the contents of Cd in rice grains in field test site S1 and S2 decreased by 42.88%~67.29% and 38.25%~52.59%, respectively, and the contents of Cd in rice grains in test site S2 even reached the national food safety standard （GB2762—2017 Cd≤0.2 mg/kg）. The above three passivator treatments reduced the contents of soil available Cd in different degrees. Compared with the control group, the contents of soil available Cd in S1 and S2 were decreased by 14.09% to 17.51%, 30.38% to 37.60% and 9.22% to 10.54%, respectively. Soil available Cd contents in S1 and S2 were a certain extent correlated positively with rice grains. Soil pH of S1 was significantly increased by three passivators, and soil pH was significantly negatively correlated with Cd content in rice grain, with a negative correlation coefficient （R2） of 0.727 8. There was no significant effect of the three passivating agent treatments on rice yield, and the requirements that the crop yield reduction not exceed 10% after the application of heavy metal passivating agents in the evaluation standard of NY/T3343—2018 was reached. The effect of in-situ remediation of the three passivating agents in the mild and moderate Cd polluted paddy soil was as follow： Biocharcoal>calcium and magnesium oxide>carbonate rock.
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    Experimental study on mixed composting of cow manure and moldy corn silage
    BAO Xi-ming, LIU Wen-kai, XIONG Hai-qian, LU Hua-ping, XIA Jian-you, ZHOU Nian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 56-58.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.012
    Abstract （469）      PDF （1744KB）（181）       Save
    In order to utilize moldy corn silage as a resource and relieve its pressure on the breeding environment,the cow dung and moldy corn silage was mixed with fermenting strains, and then compost fermentationwas carried out and its fermentation effect was explored by stacked composting method. The experimental results showed that compared with the control group, the experimental group could extend the duration of the high temperature period of the pile; The final pH of the compost was between 8.0 and 9.0, and the pH had a certain relationship with the nature of the material and the ratio of different components; The contents of total nitrogen and ammonium nitrogen showed a decreasing trend, while the contents of total nutrients, P2O5 and K2O all showed increasing trends to varying degrees; At the end of composting, all treatment groups failed to reach the standard of non-toxicity to cabbage seeds, it may be related to the pH of the material and the mycotoxins contained in moldy corn silage.
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    Effects of different water and nitrogen on tomato growth and root zone soil environment under the facility condition
    MA Zhi-jie, ZHANG Xue-ke, BAI Jun-ying, WANG Jin-peng, CHEN Wei-dong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 59-63.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.013
    Abstract （419）      PDF （1934KB）（217）       Save
    A field split plot experiment was set up, in which tomato was planted and bare field, two irrigation levels were 2.25×103 t/ hm2 （W1） and 4.50×103 t/hm2 （W2）, and two application nitrogen levels were 450 kg/hm2（N1） and 675 kg/hm2（N2） in the sub plot. The growth and yield of plants in each treatment were measured in the growth period, and the soil physical and chemical properties in all treatment root zone was measured after harvest. The results showed that compared with different water and nitrogen treatments, the chlorophyll content and total biomass of tomato leaves were the highest in W2N2; Compared with different treatments, the yield of W1N2 was higher than that of W1N1, W2N2 and W2N1, but there was no significant difference among the latter three. Compared with bare field, in planted tomato field the soil moisture and pH decreased by 17.3% and 2.08%; The concentration of nitrate nitrogen and EC increased by 29.2% and 84.4%. In planting zone under the same irrigation amount, the trend of nitrate concentration was the same, the higher the irrigation amount was, the higher the nitrate nitrogen concentration was 10~20 cm; The EC value of 0~50 cm in W1N2 treatment was significantly higher than that in other treatments. In bare field W2N2 of the concentration of nitrate nitrogen in different soil layers was significantly higher than that of W1N2, W2N1 and W1N1, and the EC value of 0~10 cm of N2 was significantly higher than that of N1.
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    Application of new generation radar characteristic parameters in artificial prevention of hail decision
    HE Yang, LI Hong-bin, ZHANG Jing-xuan, XIA Wei, WEN Jia-liang, PU Wen-yao, ZHANG Dian-gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 64-68.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.014
    Abstract （332）      PDF （6083KB）（168）       Save
    Based on the radar cardinality data of 109 hailcloud cases observed from 2016 to 2018, PUP software processing and analysis were carried out. Combined with relevant business functions of the original Dalian artificial hail prevention decision command system, assisted analysis and value of radar characteristic parameters were conducted. The radar characteristic parameters of hail cloud occurrence and development, cloud top height, strong center height and vertical integral liquid water content were obtained. According to hail cloud theory and catalytic principle, hail cloud recognition and type discrimination based on SA new generation Doppler radar, as well as artificial hail prevention decision discrimination index and model were studied and established. In addition, 28 hail cloud cases in 2019 were verified and analyzed by using this index, and the accuracy rate reached 85.2%~86.8%. In particular, the radar data inversion analysis, such as hail cloud identification and hail prevention decision making, was carried out on the radar hail prevention decision command system during a severe hail weather process in autumn, as well as the comparative analysis of the old and new discriminant indexes, showed obvious results. It showed that there were some differences in characteristic parameters and human figure decision discriminant indexes of different types of radar, and the new ideas and methods of effective artificial hail prevention of strong hail cloud were summarized and discussed through the analysis and practical investigation of the artificial hail prevention technology of strong hail cloud.
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    Study on herbicidal compound from fungi Xylaria sp. NH1801
    LIU Fang, WANG Yue-ying, ZHANG Zhi-gang, WU Zhao-yuan, ZHANG Ya-ni, FANG Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 69-71.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.015
    Abstract （317）      PDF （1595KB）（125）       Save
    In the screening of resources with herbicidal activity, a fungus Xylaria sp.NH1801 with significant herbicidal activity was obtained. The active compound of Xylaria sp. NH 1801 were traced and isolated and two compounds were identified as 19,20-epoxy-cytochalasin Q（1） and 21-deacetylated-19,20-epoxy-cytochalasin Q（2）. At 50 μg/mL, compounds 1 and 2 significantly inhibition toward the root elongation of Echinochloa crusgalli（inhibition rates were 65.7% and 60.7%, respectively） and Amaranthus retroflexus seeds （inhibition rates were 77.2% and 75.4%, respectively）. This is the first report on the inhibitory effect of compounds 1 and 2 on Echinochloa crusgalli and Amaranthus retroflexus seeds.
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    Field virus resistance of different potato main cultivars in Enshi prefecture
    ZOU Ying, ZHANG Yuan-xue, YAN Lei, GAO Jian-hua, HAO Miao, ZHANG Deng-hong, SHEN Yan-fen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 72-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.016
    Abstract （464）      PDF （1624KB）（333）       Save
    The first ten main varieties of potato in Enshi prefecture, including Mila, E potato 10, E potato 12, E potato 13, E potato 14, E potato 16, E potato 17, Zhongshu 5, Feurita and Nanzhong 101, were used as the research objects, the self-retained species Mira was used as the control, which was not virus-free. The field resistance of different varieties was studied, and the field virus resistance identification, serological detection and yield determination were carried out. The results showed that E potato 13 showed sporadic disease and mild leaf rolling. The field detection rate was the lowest, which was 7.78%, the average yield was 88.8 t/hm2, and PLRV was detected by ELISA. In contrast, the local self-kept agricultural not virus-free variety Mira had the most serious disease, showing serious leaf Mosaic and rolling leaves, with the highest incidence detection rate of 96.67%, and the lowest average yield was 24.3 t/hm2, and ELISA detected PLRV, PVA, PVM, PVS four viruses. E potato 13 can be preliminarily designated as resistant and high quality variety for demonstration and promotion.
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    Trapping effect of two different principles insect-pest lights trapon target pests and non-target insects in rice field
    ZHANG Shu, HUANG Jia-xiang, LYU Liang, CHANG Xiang-qian, YANG Xiao-lin, WANG Zuo-qian, WANG Jia-gang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 76-78.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.017
    Abstract （397）      PDF （1761KB）（314）       Save
    Experiments of the trapping effect of insect trap lamps of two different principles on the target and non-target pests in rice field were carried out. The results showed that the amount of insect trap induced by a single lamp of solar-powered wind-powered insect trap was significantly higher than that of the solar smart grid insect killer. However, the amount of natural enemy insects and neutral insects was significantly reduced, and the trapping effect of the solar-powered wind-powered insect trap was better.
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    Introduction of 9 varieties of sweet cherry in Shiyan area
    ZHU Xian-bo, CHENG Jun-huan, XIA Hong-yi, LIU Tao, LIU Qiao, CHEN Shi-ming, WU Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 79-81.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.018
    Abstract （701）      PDF （1585KB）（514）       Save
    Nine major sweet cherry cultivars, namely Zaodaguo, Burlat, Red Lantern, Sunburst, Lapins, Summit, Kaitlin, Van and Rainier, were tested in this experiment. Through the determination of botanical characteristics, phenological period, growth and fruiting,and fruit quality of different varieties, combined with the results of field investigation in local sweet cherry production areas, the high quality and high yield sweet cherry varieties suitable for cultivation in Shiyan area of Hubei province were screened.
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    Effect of root application of selenium fertilizer on dihydromyricetin and selenium content of Ampelopsis grossedentata
    ZHANG Chao-yang, HUANG Guang-yu, CHEN Yong-bo, HU Bai-shun, QIN Bang, LIU Shu-qin, CHEN E, PANG Xu-juan, TAN Kun-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 82-85.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.019
    Abstract （386）      PDF （2194KB）（211）       Save
    Taking Ampelopsis grossedentata as experimental material, the effects of root application of selenium fertilizer on dihydromyricetin content and selenium content of A. grossedentata were studied by randomized block experiment. The results showed that the content of dihydromyricetin in A. grossedentata increased first and then decreased from June to October. The content of dihydromyricetin in A. grossedentata increased first and then decreased among different treatments in the same harvest period. The appropriate amount of selenium fertilizer could promote the content of dihydromyricetin in A. grossedentata.
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    Effects of different plant growth regulators on the growth and development of central buds of Lilium davidii var. unicolor
    YIN Ji-cheng, ZHANG Yi-ping, TANG Dao-cheng, TANG Nan, YANG Hong-xia, YAO Wen-zhou
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 86-91.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.020
    Abstract （372）      PDF （1656KB）（277）       Save
    Central bud of Lilium davidii var. unicolor was selected as the material of this study. The central buds were divided into two groups, with and without root of basal plate. Materials were treated with GA3 （0, 50, 100, 150, 200 mg/L）, NAA （0, 50, 100, 150, 200 mg/L）, 6-BA （0, 1, 2, 3, 4 mg/L） and rooting powder （GGR, 0, 1, 2, 3, 4 mg/L） to explore the effects of different plant growth regulators on bulb growth and plant height,and find the optimum plant growth regulator for the central bud of Lilium davidii var. unicolor. Results showed that when using central bud of Lilium davidii var. unicolor for propagation, it was not necessary to perform tedious root cutting. The application of low concentration of GA3was beneficial to the growth of plant and bulb.
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    Spatio-temporal evolution and coupling analysis of landscape ecological security in Balikun county from the perspective of Sansheng space
    ZHAO Juan, ZHANG Yun-xia, ZHANG Yong-fu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 92-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.021
    Abstract （336）      PDF （4826KB）（445）       Save
    Based on the perspective of “Sansheng space”,we explored the evolution characteristics of landscape ecological security in typical arid areas,and comprehensively used landscape ecology, geostatistics and coupling coordination model. The spatio-temporal change characteristics and coupling coordination characteristics of landscape ecological security in Balikun county from 2013 to 2019 were analyzed systematically. The results showed that,①the forage ecological space and other ecological spaces in Balikun county were dominant, and the areas of forage ecological space and rural living space decreased by 22.94% and 26.49% respectively in 2019, while the areas of other ecological spaces increased. ②The landscape ecological security value of the study area showed an overall upward trend, and the proportion of basic safe areas and safer areas was more than 57.88% in 2019. ③ the Moran's I index of landscape ecological security value of each landscape unit in Balikun county was positive, and there was a positive correlation in space, which was mainly characterized by high-high aggregation and low-low aggregation, including convergence from 2013 to 2016 and divergence from 2016 to 2019. The semi-variation fitting optimal model of landscape ecological security value of each evaluation unit in 2013 and 2016 was exponential model, 2019 was linearl model, and the total variation of system caused by random factors （human activities） showed a downward trend. ④The coupling coordination degree of landscape ecological security value of Sansheng space increased year by year, in which the areas of basic coordination, moderate coordination and high coordination increased by 8 907.15 km2, 2 541.46 km2 and 4 797.08 km2 respectively, while 10 750 km2 and 5 490.38 km2 decreased in severe and moderately maladjusted areas, respectively.
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    Temporal and spatial changes of landscape pattern and impact assessment of tourism development in Huangshan district
    LI Jia-qian, LIU Chao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 101-106.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.022
    Abstract （372）      PDF （4948KB）（204）       Save
    Huangshan district of Huangshan city was chosen as the research spot, this research analyzes the land use changes of Huangshan district in 2000, 2010 and 2020. Land use transfer martix, the landscape pattern index and correlation analysis were applied to analyze the spatial-temporal changes of land use in the Huangshan district, and the correlation between the change of different land types and the development of local tourism was analyzed. The results indicates that from 2000 to 2020, the main land use change in Huangshan district is farmland and forest converted into water area and urban area, the urbanization speed is fast, and the urban area increases by 2 681 hm2（503%） during this period. The urbanization process of the towns around the scenic spot is faster than that of other towns, which indicates that tourism will promote the urbanization process of the surrounding areas. The human activities in Huangshan district in the past 20 years have led to the fragmentation of the landscape. The urban expansion was lack of planning and relatively scattered, reasonable planning should be paid attention to the following development. With the development of local tourism economy, the area of water area and urban area increased year by year, while the area of cultivated land, forest land and grassland decreased yearly, which may be resulted in the change of the main income source of local people.
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    Research on the reconstruction of industrial and mining wasteland based on the restoration of ecological landscape of national space
    LI Sheng-fang, ZHU Yi, XIANG Dong-wen, GONG Bin, YANG Jian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 107-116.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.023
    Abstract （350）      PDF （16599KB）（47）       Save
    Based on the contents of ecological landscape restoration of national space, Lingshan industrial and mining wasteland in Jiangxia district of Wuhan city was studied. From the perspectives of natural landscape, cultural landscape and economic landscape, the strategy of repairing and transforming industrial and mining wasteland into mine park was put forward. Taking the restoration of natural landscape of industrial and mining wasteland as the guide, the ecological environment of mining area was restored to provide a healthy ecological environment base for the transformation of industrial and mining wasteland. Human landscape restoration was the key to show the characteristics of mining area transformed from industrial wasteland, economic landscape restoration and reconstruction as an important link between man and nature, in order to improve the quality of regional land resources, promote the transformation of mining industry, help the reuse of abandoned land, and provide suggestions for the development of regional ecological civilization construction.
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    The influence of aflatoxin on blood routine index of black sheep
    GUO Rui, TIAN Yong-xiang, LIU Wei, ZHOU Dan-na, DUAN Zheng-ying, YANG Ke-li, LIU Ze-wen, YUAN Fang-yan, GAO Ting, LIANG Wan, WANG Lei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 117-118.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.024
    Abstract （535）      PDF （1596KB）（300）       Save
    Combined with the case of native goat mycotoxin poisoning cases, physiological and biochemical indexes of 30 disease of sheep. The results showed that the number of WBC, Alanine aminotransferase and alanine aminotransferase increased after eating a large amount of mildew peanut vine （P<0.05）. Red blood cell volume distribution width, mean red blood cell hemoglobin concentration, alkaline phosphatase decreased （P<0.05）, other indicators showed no significant difference （P>0.05）.
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    Identification and fecal pollution control of intensive livestock and poultry breeding areas in Wuhan city
    TAO Li-wen, RUAN Zheng, DAI Chang-yun, LIU Zhi-wei, DENG Bing, PENG Xia, SHAO Zhong-bao, PU Zhen-yu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 119-123.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.025
    Abstract （406）      PDF （2081KB）（146）       Save
    At present, poultry and pigs were the main livestock breeds in Wuhan, and all large-scale farms were located in the new urban area. The density of livestock and poultry farms, the amount of breeding and nitrogen load of farmland in each administrative region of Wuhan city were analyzed. Three high-density breeding areas, Jiangxia, Xinzhou and Huangpi, were selected, and the area with the most intensive nitrogen emission was selected by taking the street as the unit. It included Wulongquan street, shanpo street and Zhengdian street in Jiangxia district, Liji street, Sandian street, Wangji street and Fenghuang street in Xinzhou district, and Liji street, Mulan township and Liuzhi street in Huangpi district. Finally, considering the actual planting situation of main crops in Wuhan city, it was determined that rice was the more suitable crop variety planted by manure.
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    Construction of the protein-protein interaction network of Chlamydia abortus
    LIU Wei, YUAN Fang-yan, ZHOU Dan-na, LIU Ze-wen, GAO Ting, GUO Rui, YANG Ke-li, DUAN Zheng-ying, LIANG Wan, TIAN Yong-xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 124-127.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.026
    Abstract （365）      PDF （6297KB）（176）       Save
    Analysis of the pathogen interactome is a powerfull approach for dissecting potential signal trasducion and new drug targets. A comprehensive protein-protein interaction network for Chlamydia abortus consisting of 220 proteins and 1 276 interaction pairs was constructed. Our analysis unraveled 20 proteins with highest interactions in the network, most of them are related to the function of transcription, translation and molecular chaperone. Further analysis showed that the chaperone proteins DnaK, GroEL and DnaJ had a high frequency of interaction, and could interact with multiple functional proteins such as ribosomal proteins and metabolism-related proteins. The results suggested that if the function of DnaK, GroEL and DnaJ were inhibited, the normal life activities of Chlamydia abortus would be greatly affected. Taken together, this study therefore provides valuable clues in exploring new signaling protein and new drug targets.
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    Isolation, culture and identification of Hubei porcine spermatogonial stem cells
    ZHANG Li-ping, HUA Zai-dong, XIAO Hong-wei, REN Hong-yan, ZHU Zhe, BI Yan-zhen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 128-132.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.027
    Abstract （362）      PDF （4552KB）（182）       Save
    The present study amimed to estabish a ripe system of Hubei white pig SSCs in vitro isolation and culture, in order to lay the foundation for related research. The testes of Hubei white pigs aged 5days, 10 days and 15 days after birth were studied,to obtained the spermatogonial stem cells of Hubei white pig by two-step enzyme digestion（4 mg/mL type Ⅳ collagenase and 0.25% trypsin）. The spermatogonial stem cells of Hubei white pigs were purified by low-speed centrifugation and differential adherence method and cultured in the sertoil cells of Hubei white pig that as feeder layer in vitro. Identified by alkaline phosphatase （AKP） and the results showed that the cultured cells were SSCs.
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    Orthogonal optimization of fermentation spice process of fructus mume and analysis of its aroma components
    HE Li, LUO Hai-tao, LIU Si-kui, ZOU En-kai, REN Zhou-ying, SHAO Deng-yin, CHEN Jun-yu, LUO Jian-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 133-138.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.028
    Abstract （441）      PDF （2335KB）（189）       Save
    Three strains were selected from the soil of the pine forest for the fermentation of fructus mume. Through the evaluation of the smell of culture solution, the one with better smell of the culture solution was selected for molecular biological identification and it was identified as Penicillium polonicum fungus, which was used to prepare fermentation spice of fructus mume. L9（34） orthogonal test design was used to optimize the process, determine the best fermentation process conditions, and analyze the types and contents of its aroma components. The results showed that the strain could be transformed into benzyl alcohol, phenylacetaldehyde and 3-methylbutyraldehyde with fruity flavor when it was used for the fermentation of fuctus mume. The optimum fermentation process conditions were fermentation temperature 25 ℃, fermentation time 24 h, and inoculation amount 2%. The process had increased and enriched the aroma of fuctus mume spice.
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    Study on the formula of konjac health noodles
    LIU Ai-hong, LI Xiao-yun, CHEN Jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 139-142.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.029
    Abstract （564）      PDF （1633KB）（287）       Save
    Taking sensory score, broken strip rate and stretch properties as evaluation indexes, the formula of konjac health noodles were studied by single factor test and orthogonal test. The results showed that when the optimum proportion of konjac refined powder in the mixed powder was 10%, the amount of water added was 32%, the amount of salt added was 2.0%, and the amount of alkali added was 0.20%, the prepared noodles had smooth surface, moderate hardness, non stick teeth, good taste and good quality, which reached the noodle standard.
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    Optimization of enzymolysis process and Maillard reaction temperature for the preparation of tobacco bud spices
    BAI Jia-feng, LIANG De-quan, WANG Xuan-jing, LIU Shao-hua, XU Chun-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 143-146.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.030
    Abstract （419）      PDF （1681KB）（766）       Save
    Taking tobacco bud as raw material and the content of water-soluble amino acids and water-soluble reducing sugar as indexes, the enzymolysis temperature, pH, enzyme dosage and enzymolysis time were optimized by single factor test. Then, Maillard reaction at different temperatures were carried out on the enzymolysis products obtained under the optimized conditions. The volatile components were extracted by simultaneous distillation extraction and analyzed by GC-MS. The results showed that the optimum conditions for enzymatic hydrolysis were enzymolysis temperature 50 ℃, pH 7, enzymolysis time 5 h and enzyme dosage 1.5%. Under these conditions, the contents of amino acids and reducing sugar were the highest. There were 45, 48, 47 and 43 kinds of volatile compounds at the Maillard reaction temperature of 50, 60, 70 and 80 ℃, mainly including alcohol, aldehyde, acid, ester, ketone, furan and pyridine. When the Maillard reaction temperature was 60 ℃, the total amount of aroma compounds was the most, up to 497.85 μg/g, in which palmitic acid, myristic acid, benzyl alcohol, phenylacetaldehyde and tricyclic terpenes had high content. Dihydrokiwifruit lactone, damascone, oleamide and 2-pentylfuran were the key aroma components in tobacco, which contributed significantly to the aroma of tobacco. The waste tobacco buds were treated by Maillard reaction after enzymatic hydrolysis to prepare the spices, which provided a new method for the actual production of tobacco spices.
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    Study on ultrasound-assisted alcohol extraction of flavonoids in Abelmoschus esculentus （Linn.）Moench
    LYU Han-ning, HAO Wei-xi, TIAN Xin, REN Yu-he, HE Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 147-150.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.031
    Abstract （342）      PDF （1650KB）（207）       Save
    Taking Abelmoschus esculentus （Linn.）Moench as the raw material, flavonoids were extraceted by ultrasound-assisted alcohol extraction. Through the single factor test and orthogonal test, the optimum extraction conditions of flavonoids from Abelmoschus esculentus （Linn.）Moench were determined：Ethanol concentration 60%, solid-liquid ratio 1∶25, extraction time 30 min and extraction temperature 80 ℃. Under these conditions, the extraction rate of flavonoids was 2.41%. The research results can provide certain theoretical basis for the development of related industries in Shangluo city and also have certain reference value for similar research.
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    Preparation of chestnut fish noodles
    WANG Wei-xin, WAN Ming-ru, ZHAN Jian-feng, WU Peng, HU Ting, SHEN Jun-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 151-155.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.032
    Abstract （340）      PDF （1673KB）（181）       Save
    Taking grass carp and chestnut powder as the main raw materials, the yeast fermentation method was used to remove the fishy smell, and the best deodorization process conditions were determined by sensory evaluation. Taking sensory score and cooking quality as the evaluation indexs, the influence of fish erosion, chestnut powder, starch, salt on the quality of fish noodles were investigated by single factor test and orthogonal test respectively, to determine the best production formula of fish noodles. The results showed that the best deodorization process were yeast powder addition 2%, the fermentation time 1 h, the fermentation temperature 30 ℃. The best formula of fish noodles were fish erosion 50%, chestnut powder 20%, starch 6%, salt 2.5%. Under these conditions, the chestnut fish noodles have a delicate taste, full of umami flavor, both chestnut fragrance, low break rate and low cooking loss rate, which is easy to promote production.
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    Dose distribution of 60Co radioactive sources arranged in three layers
    CHEN Yu-xia, QIU Jian-hui, ZU Xiao-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 156-159.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.033
    Abstract （358）      PDF （1626KB）（296）       Save
    In order to understand the horizontal dose distribution and vertical dose distribution of 74 60Co source rods （activity is 1.11×1016 Bq） arranged in three layers on the source frame, the radiation field was measured by ferrous sulfate dosimeter and low range silver dichromate dosimeter. The results showed that the equation for the relationship between the distance（x） away from the source plate and the dose（y） in the horizontal direction of the irradiation field was y=0.847e-0.014x, r=-0.989 3, and x was significantly correlated with y at the level of α=0.01. The inhomogeneity of dose distribution in the vertical direction was 1.17, which showed a uniform distribution. The cargo irradiation did not have to be manually replaced, which simplified the irradiation production process and ensured the irradiation quality of the product.
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    Rapid detection technology of copper ion in preserved egg pickling liquid
    ZHANG Hui-xian, CUI Wen-wen, WANG Ming-rui, YAO Jing-jing, DU Jin-ping, SUN Jing, ZHANG Hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 160-163.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.034
    Abstract （490）      PDF （1878KB）（368）       Save
    A rapid method for determination of copper in preserved egg pickling liquid by bis-cyclohexanone oxalyldihydrazone （BCO） coupled with UV-Vis spectrophotometric detection was established. The reaction conditions of copper ion with BCO were optimized. Under the optimized conditions, copper ion presented a good linear relationship in the concentration range of 0~2.56 mg/L with R2 0.999 5. The recoveries of copper ion spiked at 0.12, 0.24, 0.48, 0.72 g/L were between 97.9% and 103.4%, and inter-day and intra-day relarive standard deviation were lower than 3.17%, demonstrating good accuracy and precision of the proposed method. Finally, the proposed method was applied to monitoring the copper sulfate in the actual preserved egg pickling liquid. The established method provides a powerful tool for the real-time monitoring of copper ion during the preservation of preserved eggs.
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    Application of regional economic data analysis system based on data mining model
    CHENG Tong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 164-167.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.035
    Abstract （374）      PDF （3923KB）（208）       Save
    In the regional economic analysis, the analysis of the regional economic data is difficult to obtain satisfactory results. Based on the regional economic characteristics, this paper adopts Multi-Agents distributed data management mode to build the data mining application framework of regional economic analysis, establishes the four-layer structure system through XML Web Service technology and XML format access, realizes multi-database access agent to centrally manage data access, and introduces Microsoft time sequence algorithm and expectation maximization algorithm for heterogeneous acquisition and data mining. Using C# language to develop regional economic data analysis system, it realizes data mining and structure display of different database data, and provides users with data sharing environment across database platforms.
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    Spatial and temporal variation analysis of straw burning heat source in three northeast provinces based on FY3 series polar orbiting satellites
    WU Shuang, WU Ying, XU Zuo-min, SUN Tao, PEI Yu-hang, CHENG Chun-xiang, CHEN Jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 168-173.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.036
    Abstract （369）      PDF （6329KB）（172）       Save
    A dataset of heat source points for straw incineration in the three provinces of northeast China from 2015 to 2019 was established on the basis of the monitoring results of heat source points provided by the FY series of polar-orbiting meteorological satellites. The temporal and spatial variation trend of the heat source of straw burning in the three northeastern provinces in 5 years was analyzed based on several analysis method including the center of gravity shift, Moran index, etc. The results showed that the straw burning heat source monitoring frequency in the three northeastern provinces in the five years presented a characteristic of volatility. The heat sources of straw incineration in the three northeastern provinces were mainly observed in the spring and autumn seasons, and it mainly occured in Heilongjiang province. However, the heat source of straw burning in the three northeastern provinces was mainly concentrated near the border of Heilongjiang and Jilin, and there was a trend of shifting from Heilongjiang to Jilin. The corresponding agglomeration effect gradually weakens and the low-value gathering areas continue to expand. However, the distribution of heat source points for straw incineration is still relatively concentrated in the main agricultural areas.
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    The influence of education level on the green agriculture production in the Yangtze River Economic Belt
    DENG Qiu, TIAN Zhen-hua, WU Mei-feng, ZHANG Lu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 174-179.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.037
    Abstract （349）      PDF （2169KB）（333）       Save
    Promoting the development of the Yangtze River Economic Belt is an important strategy related to the overall development of the country. It is of great significance to study the influence of education level on the green agriculture production in the Yangtze River Economic Belt. Based on the relevant theories of education and behavior, this study used the panel data of the Yangtze River Economic Belt from 1998 to 2017 and the fixed effect model to explore the relationship between rural education level and green agriculture production in the Yangtze River Economic Belt. The results showed that the rural education level had a significant promoting effect on the green agricultural production in the Yangtze River Economic Belt, and the regional education level had strengthened this effect. Farmland infrastructure had a positive and significant impact on green agriculture production. The influence of rural education level in the lower reaches on the green agricultural production was less than that in the middle and upper reaches, but the influence of regional education level in the lower reaches was greater than that in the middle and upper reaches. Finally, the suggestions of paying attention to the development of rural education, constructing the service platform of inter-regional talent and technology flow, and improving the farmland infrastructure were put forward, in order to promote the green agricultural production in the Yangtze River Economic Belt.
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    Current situation and mode analysis of rural e-commerce promoting the integration of primary,secondary and tertiary industries：Taking Hubei province as an example
    DU Ming-wei, CHEN Zhong-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 180-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.038
    Abstract （485）      PDF （1591KB）（471）       Save
    With the rapid development of rural e-commerce, it becomes the power source to boost the integration of primary, secondary and tertiary industries. Taking Hubei province as an example, the current situation of the integration of rural e-commerce and primary, secondary and tertiary industries in Hubei province was analyzed through relevant datas, the process and fruitful results of the integrated development of rural e-commerce and primary, secondary and tertiary industries were elaborated through four specific integration mode cases. The results showed that rural e-commerce was the development engine of rural revitalization and important mean of rural poverty alleviation, which could effectively promote the integration of primary, secondary and tertiary industries and the development of local agricultural economy. In addition, the internal restriction factors that restrict the integration of rural e-commerce and the primary, secondary and tertiary industries at the present stage were pointed out, and the countermeasures and suggestions of accelerating the integration of rural e-commerce and the primary, secondary and tertiary industries were put forward.
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    Research on the development strategy of forest health tourism in Henan province based on SWOT analysis
    ZHU Xiu-zheng, XU Zi-heng, BI Hui-tao, LI Xi-mei, HE Jing, GUO Er-yan, LI Zhi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 184-189.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.039
    Abstract （564）      PDF （2056KB）（355）       Save
    The SWOT analysis method was used to analyze the internal advantages and disadvantages, external opportunities and threats of the development of forest health tourism industry in Henan province. The development of forest health tourism industry in Henan province had the advantages of special geographical location, convenient transportation, rich environmental resources and large market demand. It also had the disadvantages of imperfect supporting health tourism service facilities, insufficient publicity and lack of professional talents. At the same time, it had the opportunities of broad development prospects, government's attention and relevant policy support, as well as the threats of fierce competition with other provinces and cities, imperfect relevant laws and regulations. Finally, four development strategies, namely twist strategy （W-O）, growth strategy（S-O）, multiple development strategy（S-T） and defensive strategy（W-T） were proposed, in order to provide scientific reference for forest health tourism industry and high-quality development of forestry.
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    Current situation and countermeasures of traceability standard system of edible agricultural products in China
    CHEN Ping-ting, ZHANG Yue-ting, SHEN Xiang-cheng, LUO Zhi-qing, MA Hai-rong, ZHANG Ming-xue, GUAN Bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 190-194.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.040
    Abstract （335）      PDF （1734KB）（159）       Save
    Agricultural product traceability standard system was the basis of agricultural product traceability system. Improving agricultural product traceability system could promoted the disclosure of agricultural product production information and protected the rights and interested of consumers. By introducing the historical evolution of the traceability standard system of edible agricultural products in China, this paper analyzed the composition, structure, age of the traceability standard of agricultural products and the main body of standard formulation, expounded the existing problems at the present stage, and put forward countermeasures and suggestions to realize the traceability standard system of edible agricultural products.
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    Dynamic forecast of cereals yield in Liaoning province based on influence index for bumper or poor harvest from historic yield
    WANG He-ran, ZHANG Qi, CHEN Peng-shi, ZHAO Ming, LIU Dong-ming, HUANG Yan, HUANG Yue
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 195-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.041
    Abstract （379）      PDF （1655KB）（351）       Save
    Based on the influence index for bumper or poor harvest from historic yield, the dynamic forecast models for spring maize, rice, soybean of Liaoning province and 14 cities in 2016 were constructed, the dynamic forecast technology of cereals yield in Liaoning province was studied. The results showed that the forecast accuracy of unit yield of spring maize, rice, soybean in Liaoning province were generally over 80%, in different forecast time, the forecast accuracy of rice yield were generally higher than the other two, and the results were stable. This technology can realize the dynamic forecast of the three grain crops in Liaoning province and meet the needs of production forecast business of provincial and municipal crops in Liaoning province, in order to provide technical support for timely and accurate production prediction in the region.
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    Research on the influencing factors of mortgage financing demands of farmers' land management rights and intentions of financing mode in Xinjiang
    YANG Hong-wei, MA Ying, SU Xiang-hui, ZHAO He-ping, ZENG De-peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 201-206.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.042
    Abstract （328）      PDF （1690KB）（171）       Save
    Firstly, Binary-Probit model was used to explore the impact of farmers' personal characteristics, household characteristics, social capital, financial environment, government and third-party support on the mortgage financing demand of farmers' land management right. Secondly, micro-datas were used to further analyze the mortgage financing mode of land management right that meet the needs of farmers. The results showed that six variables had a significant impact on mortgage financing demands of farmers' land management rights, including farmer's age, area of arable land, familiarity with credit personnel, credit satisfaction degree, government discount loan and professional land value evaluation institutions. In terms of financing mode intention, farmers had a higher acceptance of direct mortgage mode. Finally, this study proposed that all parties involved in the mortgage financing of land management rights should give full play to their roles, coordinate and cooperation with each other to fully revitalize rural land resources and promote the high-quality development of agricultural economy in Xinjiang by improving the financial literacy of farmers, optimizing the rural financial environment, innovating rural financial products, improving the quality of financial supply, giving play to the guiding role of the government, and establishing a multi-party cooperation mechanism.
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    Research on the practical path of young talents to participate in rural revitalization
    ZENG Bo-wei, LIU Ji-chun, LIU Si-meng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 207-212.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.043
    Abstract （1040）      PDF （2190KB）（637）       Save
    Through empirical research method and literature research method, the current partially representative rural revitalization industry models and their existing problems were analyzed, and the practical paths for young talents to participate in rural revitalization were explored. The results showed that the current rural revitalization models had shortcomings such as insufficient youth ratio, excessive agricultural input, lack of follow-up development and the conflict between traditional culture and modern concepts. The practical paths of ideological revitalization lead, intellectual revitalization assistance, cultural revitalization integration, capital entry support was put forward, in order to provide effective ways and methods for young talents to participate in rural revitalization.
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    The characteristics and current status of rural women in migrant work from the perspective of equalization of public services：Based on the empirical analysis of CMDS in 2017
    CAO Zhi-jie, CHEN Zheng-fang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 213-217.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.044
    Abstract （382）      PDF （1623KB）（155）       Save
    Based on the datas of China Migrants Dynamic Survey（CMDS） in 2017, the characteristics and current status of rural women in migrant work from the perspective of equalization of public services were empirically analyzed. And the configuration of basic public services in rural mobile women were analyzed through the logistic model. The results showed that personal characteristics, family characteristics, regional characteristics had significant effected on social security, health education, medical security and other public services. Married, non-manual labor, short-distance moving rural women had easier access to related public services.
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    Research progress in effects of straw returning on environment
    CHENG Zi-zhen, FAN Xian-peng, YU Yan-feng, WU Mao-qian, XIONG Gui-yun, ZHANG Fu-lin, LIU Dong-bi, XIA Ying, ZHANG Zhi-yi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 5-7.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.001
    Abstract （421）      PDF （1514KB）（288）       Save
    Straw returning is an important way of straw utilization. Straw returning can supplement organic matter and nutrients for soil and improve soil fertility, but it can also affect nitrogen and phosphorus loss, ammonia volatilization and greenhouse gas emission from field, and then affect the water and atmospheric environment. This study comprehensively analyzed the effects of straw returning on nitrogen and phosphorus loss, ammonia volatilization and greenhouse gas emission from field, in order to provide guidance for straw returning scientifically.
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    Gene editing technology and its application prospects in mulberry breeding
    HUANG Jin, LI Yong, YU Cui, ZHU Zhi-xian, MO Rong-li, DONG Zhao-xia, HU Xing-ming, DENG Wen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 8-14.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.002
    Abstract （442）      PDF （1610KB）（272）       Save
    The mechanism of three gene editing techniques and the application of CRISPR/Cas9 gene editing technology in plant breeding were reviewed. According to the current situation of mulberry breeding, the application prospect of CRISPR/cas9 gene editing technology in mulberry functional genomics and genetic improvement was prospected, in order to provide reference and new ideas for mulberry diversified germplasm innovation.
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    Parent breeding and high-yielding breeding technology of maize variety Yundan 21
    ZHOU Gang, CHEN Guang-yong, YANG Hu, ZHANG Shi-hong, TANG Yu-cheng, YE Qing-song, XU Xing-hua, LI Wen-pin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 15-17.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.003
    Abstract （622）      PDF （1537KB）（233）       Save
    Yundan 21 is a maize hybrid with inbred line WD03 as parent, inbred line N75 as parent. The breeding process and characteristics of Yundan 21 parent inbred lines were introduced, and the breeding techniques of parent inbred lines were summarized. The technical measures of high-yield seed production were summarized from the selection of base, scientific population structure and sowing time. The results showed that the suitable seed production density was 75 000~90 000 plants/hm2, the ratio of parents was 1∶4,the sowing time was the same period.
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    Investigation and collection of crop germplasm resources in Lichuan city of Hubei province
    LI Li, CHEN Hong-wei, LIU Liang-jun, LIU Chang-yan, JIAO Chun-hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 18-26.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.004
    Abstract （474）      PDF （6044KB）（269）       Save
    Crop germplasm resources is the basis of crop breeding, genetic research and ecological stability, and it is considered as the national strategic resources for its importance in food security and agricultural sustainable development. The third national census and collection of crop germplasm resources Hubei project team collected 118 samples of crop germplasm resources from 12 villages in 5 townships of Lichuan city, consisting of 56 food crops, 50 vegetables, 7 economic plants, and 5 fruits which belonged to 42 species of 35 genera in 20 families. In this study, the planting area and the growth and decline conditions of crop germplasm resources were analyzed. Furthermore,The conservation and exploitation of local germplasms were subsequently discussed based on current status.
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    Breeding of a new hybrid rice combination E Liangyou 28 with high quality and resistance to rice blast
    DONG Hua-lin, FEI Zhen-jiang, WANG Hong-bo, ZHENG Xing-fei, YIN De-suo, HU Jian-lin, ZHA Zhong-ping, XU De-ze
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 27-28.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.005
    Abstract （618）      PDF （1493KB）（228）       Save
    E Liangyou 28 is a new early-maturing variety of two-line medium Indica hybrid rice from crossing EK 2S with conventional rice Fudao 88 by Food Crops Institute of Hubei Academy of Agricultural Sciences. This variety has the characteristics of good plant and leaf morphology, high quality, early maturity, and good resistance to rice blast. It has been certificated and registered by Hubei Committee for Crop Variety Registration in July 2021（No.2021080） and is suitable for planting in Hubei rice-wheat continuous cropping areas as post-wheat rice.
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    Green and efficient cultivation techniques of new maize variety Yundan 21
    YANG Hu, ZHOU Gang, CHEN Guang-yong, ZHANG Shi-hong, LI Wen-pin, XU Xing-hua, YE Qing-song
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 29-32.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.006
    Abstract （493）      PDF （1522KB）（171）       Save
    Yundan 21 is a maize hybrid with inbred line WD03 as parent, inbred line N75 as parent.Through matching of improved varieties and methods experimental studies, the green and efficient cultivation techniques of Yundan 21 were summarized from the aspects of preparation before sowing, sowing, reasonable close planting, scientific fertilization, green prevention and control of diseases and pests. It is beneficial to guide farmers to carry out field production and provide theoretical basis for the large-scale promotion and planting of Yundan 21.
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    Light, simple and efficient planting technology of melon-cotton interplanting in Yicheng city
    FU Yong-hong, LI Qi-hua, LIU Ke-zhao, RAO Chuan-bo, HUANG Mei-fang, YAN Xian-hui, CHEN Dan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 33-35.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.007
    Abstract （367）      PDF （1508KB）（147）       Save
    In view of the development, changes and problems of melon-cotton interplanting production in Yicheng city, the research, summary, demonstration and popularization of economical and eco-efficient cultivation techniques of melon-cottoninterplanting were carried out. By optimizing the regional planting structure, changing the seedling raising mode of watermelon, improving the mechanization of melon interplanting cotton production, increasing the application of organic fertilizer, simplifying the field management links of watermelon and cotton, the light, simple and efficient planting of melon-cottoninterplanting production in Yicheng city was realized.
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    Effect of Lifengling application on lodging resistance and yield of machine-transplanted rice under waterlogging stress
    CAO Yan, HUANG Yi, ZHU Bo, ZHAO Ji-wu, XIANG Yong-ling, LIAO Chang-jiao, WANG Xiao-ling
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 36-40.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.008
    Abstract （561）      PDF （1762KB）（265）       Save
    Aimed to investigate the effects of Lifengling on lodging resistance and yield of machine-transplanted rice under waterlogging stress, two rice varieties, Quanyouhuazhan （hybrid varieties） and Lvyinzhan （Conventional high-quality varieties）, were used at this study. And the plant height, fresh weight, lodging index and yield were used to evaluated the effect of Lifengling on rice under waterlogging condition. The results showed under waterlogging condition the plant height of Lvyinzhan was siginificantly increased; The fresh weight of Quanyouhuazhan and Lvyinzhan were significantly decreased compared with normal water management, respectively. Under waterlogging stress, after application of Lifengling, the plant height of Quanyouhuazhan significantly decreased by 2.32%. Meanwhile, the lodging index was significantly increased and the rice yield was decreased under waterlogging condition. On the other hand, the lodging index of Quanyouhuazhan and Lvyinzhan were marked decrease 13.38% and 28.86% by spray application of Lifengling, respectively. And the yield of Quanyouhuazhan was significantly increased by 627.9 kg/hm2, because of the increase of grain number and 1 000-grain weight. The yield of Lvyinzhan and its yield components increased unsignificantly. Therefore, timely and appropriate spraying of Lifengling could improve lodging resistance and ensure yield formation of rice under waterlogging stress.
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    Effects of rice yield and cost-benefit with applying side deep fertilization technology
    YU Zhen-yuan, WANG Ben-fu, LI Yang, ZHANG Zhi-sheng, YANG Xiao-long, ZHAO Zu-cheng, MA Xiao-wei, CHENG Jian-ping, PENG Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 41-43.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.009
    Abstract （400）      PDF （1541KB）（156）       Save
    Side deep fertilization technology on rice is a precise and quantitative fertilizer application technology. In order to explore the effect of side deep fertilization technology on the potential of nitrogen fertilizer reduction and yield of rice, four treatments were set upA blank control treatment of nitrogen fertilizer, an artificial throwing fertilization treatment, simultaneous side deep fertilization and side deep fertilizati-on to lose weight. The results showed that under the same amount of fertilization, the output of side deep fertilization treatment in Xiaochang and Gongan were 8.08 t/hm2 and 7.57 t/hm2, respectively, which increased the yield by 7.30% and 1.61% compared with the artificial throwing fertilization treatment; The yield of side deep fertilization and 20% weight loss treatment was equivalent to that of artificial throwing fertilizer treatment; Compared with artificial throwing fertilizer treatment（T1）, side deed fertilization（T2） increased the income by 3 115.0 yuan//hm2 and 1 911.0 yuan//hm2 in Xiaochang and Gongan test sides. It can be seen that side deep fertilization technology plays an important role in reducing the application of nitrogen fertilizer and increasing rice yield and efficiency.
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    Identification on heavy metal-resistant Enterobacter ludwigii GL-2 and effects on growth of wheat
    CAI Gao-lei, ZHOU Yang, ZHAO Chang-song, PENG Xuan-he, ZHANG zhen, ZHAO Jian-ning
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 44-48.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.010
    Abstract （399）      PDF （2138KB）（219）       Save
    In order to isolate the plant growth-promoting rhizobacteria（PGPR）that exhibit heavy metal resistance, the LB medium supplemented with Cd and the siderophores medium were used to screen suitable strains. Minimal inhibitory concentrations （MICs） of GL-2 strain was determined by plate dilution method. The passivation effects to Pb and Cd on the growth o f wheat under GL-2 strain were added to MS medium in the different treatments. The promoting effect of GL-2 was studied on the growth of wheat by pot experiments. The results showed that the strain GL-2 belongs to Enterobacter ludwigii based on molecular biology and physiological and biochemical identification. GL-2 had a strong tolerance to heavy metals, and the minimum inhibitory concentration of Pb was 650 mg/L.The MS medium added to GL-2 strains could relieve heavy metal influence on wheat growth effectively. There was a significantly effect to increase the root fresh weight, tiller numbers and root dry weight of wheat within GL-2 strains.
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    The changes and coupling coordination characteristics of “production-living-ecological” function of geographical space in Yunnan province
    LI Yuan-yuan, LI Zhi-ying, LONG Ye, WANG Lin, PEI Yu-li, ZHENG Wen-hao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 49-56.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.011
    Abstract （444）      PDF （7437KB）（129）       Save
    In order to reflect the present situation and coordination level of "production-living-ecological" function of geographical space in Yunnan province, an evaluation index system was constructed, and a comprehensive evaluation model was constructed by using entropy method. The coupling coordination degree model and coefficient of variation were used to analyze the functional coupling coordination characteristics of "production-living-ecological" function in Yunnan province from 2007 to 2017. The results showed that,"production-living-ecological" function was gradually strengthened, and the function of production and life showed a more obvious "center-periphery" structure. Because Dehong's foreign trade had developed rapidly in recent years, its production function was also more prominent; The ecological function was stronger than the production and life function, which was highe r in the west and lower in the east. The functional coupling coordination degree of "production-living-ecological" function gradually increased and the gap between cities decreased slightly, and the average annual growth rate of coupling coordination degree from 2007 to 2012 was higher than that from 2012 to 2017. The overall "production-living-ecological" function was in the stage of mild imbalance to primary coordination, and the spatial layout of coordination degree showed obvious characteristics of "center-periphery" structure and "overall imbalance and local equilibrium".
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    Analysis of driving factors of CO2 emissions in three provinces of northeast China
    CHEN Wen-wen, ZHU Meng-ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 57-61.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.012
    Abstract （449）      PDF （1592KB）（392）       Save
    Based on Kaya identity and LMDI method,the influencing factors of CO2 emissions in three provinces of northeast China from 2000 to 2017 were analyzed. The results showed that,the economic development effect was the main factor to promote the growth of carbon emissions from 2000 to 2012, and the effect was obviously weakened after 2012; The energy intensity effect had a inhibitory effect on CO2 emissions; The energy structure effect had both positive and negative effects on the increase of CO2 emissions; The impact of population scale effect on CO2 emissions had changed from weak promoting effect to weak inhibition effect after 2012. Combined with the analysis results, some policy suggestions for the management of CO2 emission were put forward.
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    The influence of Pacific SST anomaly on winter glaze in Hunan province
    LI Yi-zhi, LUO Bai-liang, LIAO Yu-fang, GUO Ling-yao, DUAN Li-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 62-67.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.013
    Abstract （325）      PDF （8326KB）（143）       Save
    Based on the glazedata collected at 89 meteorological observational stations in Hunan, NCEP/NCAR reanalysis data, monthly mean sea surface temperature data from Hadley Centre from 1961 to 2018,the influence of Pacific SST anomaly in the early stage on winter glaze in Hunan province were analyzed. The results showed that,there was a significant positive correlation between the distribution of positive and negative dipoles in the Pacific SST in the early July-September period and the number of winter glaze days in Hunan. When the SST index is on the high side, the westerly jet to the north of the Yangtze River at 200 hPa in the late winter was stronger, the geopotential height near the Ural Mountain at 500 hPa was higher, the geopotential height at the middle and high latitudes in East Asia was lower, the sea level pressure in Siberia was stronger, the cold wave activity was more, and the number of glaze days in winter in Hunan was more; on the contrary, the number of glaze days in winter in Hunan was less.
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    Rapid screening and identification of a Lysinibacillus pakistanensis strain producing indole-3-aceticacid
    MIN Yong, LIU Xiao-yan, CHEN Ling, ZHU Lei, QIU Yi-min, ZHOU Rong-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 68-70.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.014
    Abstract （439）      PDF （1614KB）（269）       Save
    1920 Bacillus strains were cultivated in selective media in 96-well deep well plate and rapidly screenedthrough Salkowski colorimetric method. 12 strains producing indole-3-acetic acid （IAA） were obtained， which had obvious chromatic reaction. The 12 strains were rescreened and quantitively measured. One strain could produce IAA of 118.23±5.55 mg/L which was selected. After gene sequencing and sequence alignment of 16S rDNA， the strain was identified as Lysinibacillus pakistanensis.
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    Effects of bio-organic selenium on potato yield and selenium content
    HUANG Si-si, ZHA Sheng, YU Kan, SONG Bang-hui, LONG Xiao-ling, LIU Jin-long, WEN Quan-zhou, ZHENG Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 71-74.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.015
    Abstract （406）      PDF （2884KB）（177）       Save
    In order to explore the regulatory effects of bio-organic selenium on potato yield and selenium content, the bio-organic selenium nutrient solution was sprayed on the leaves of different potato varieties at different growth stages （tuber formation stage and tuber growth stage）, and its effects on potato yield, selenium content in underground tubers and differences among different potato varieties were studied. The results showed that after selenium application, the number of large, medium and small potato varieties were studied. The results showed that after selenium application,the number of large,medium and small potatoes increased（2.69%-17.72%）,the rate of large potatoes increased by 3.65%-3.79%,the yield of large and medium potatoes increased（7.35%-26.17%）,the plotyield increased,and the plot yield of potatoes with two selenium applicationwas higher than that with one,with an increase of 9.06%,equivalent to 3 590.10 kg/hm2;with the increase in the number of selenium applications,the content of total selenium and organic selenium in potatoes both increased significantly. There were significant differences between different varieties of the same treatment,and the selenium content of underground tubers of the selenium treatment group potato met the requirements of 15-150 μg/kgspecified in the agricultural industry standard "Selenium-enriched Potatoes"（NY/T 3116-2017）,which provided theoretical basisfor the development of supporting cultivation techniques for the production of high-yield selenium-enriched potatoes using bio-organic selenium nutrient solution.
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    Effects of different conditioners on soil pH,correlation and enrichment coefficient of selenium and cadmium in four kinds of Chinese medicinal materials
    CHEN E, CHEN Yong-bo, HUANG Guang-yu, LI Wei-dong, LIU Shu-qin, ZHANG Chao-yang, QIN Bang, LIU Yao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 75-78.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.016
    Abstract （414）      PDF （2748KB）（259）       Save
    In the Shuanghe area of Xintang Township, Enshi City, Hubei Province, the acidic selenium-rich plot soil was selected and different soil conditioners were applied, including superphosphate, lime, boron-zinc-calcium-magnesium fertilizer and bio-organic fertilizer. The soil pH of Dahuang（Rheum palmatum）, Gaoben（Ligusticum sinense）, Baifuzi（Typhoniumgiganteum）, Niuxi（Achyranthes bidentata）, the correlation between total soil selenium and available selenium, the correlation between total soil cadmium and available cadmium, and their influence on the enrichment coefficient of selenium and cadmium. The results showed that the conditioner lime and bio-organic fertilizer had the greatest impact on soil pH and total sele nium content of different Chinese medicinal materials. Different conditioners do not have a consistent trend in the correlation between total selenium and available selenium in soil and the correlation between total cadmium and available cadmium in soil with different Chinese medicinal materials. The selenium enrichment coefficient of different conditioning agents for Baifuzi was significantly higher than other Chinese medicinal materials, and the cadmium enrichment coefficient for Niuxi was significantly higher than other Chinese medicinal materials, but there was no obvious rule among other Chinese medicinal materials.
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    Effects of different planting patterns on soil nutrients and microbial community of Foshou yam
    LIU Dong-hai, QIAO Yan, LI Shuang-lai, ZHANG Zhi, LI Fei, XU Wei, HU Cheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 79-84.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.017
    Abstract （395）      PDF （4924KB）（354）       Save
    The soil of Foshan yam under rotation and continuous cropping for 3 years was collected, and the high-throughput sequencing technique was used to study the community diversity and composition characteristics of soil bacteria, fungi and nematodes, as well as the changes of soil physical and chemical properties and yam yield. The results showed that continuous cropping enriched soil available nutrients, decreased the yield of bergamot yam and the diversity of soil bacteria, fungi and nematodes. The community structure of soil bacteria, fungi and nematodes changed greatly. Continuous cropping significantly increased the abundance of Campylobacter, making it the main dominant group, while reducing the abundance of Proteobacteri a, Firmicutes, Gemmatimonadetes and Bacteroidetes. Under the two models, the dominant populations of fungi were Ascomycota and Basidiomycota. Continuous cropping reduced Ascomycota and increased Basidiomycota and Mucor. Continuous cropping significantly increased the abundance of soil nematodes. Therefore, compared with continuous cropping of yam, rotation could improve the structure of soil microbial community and stabilize the yield of yam, which was a better planting pattern in Wuxue yam planting area.
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    The potential geographical distribution of Reticulitermes flavipes in China basing on CLIMEX analysis
    PENG Chao, YE Yun, LI Feng-xin, WANG Qin, XU Xue, WANG Zhen-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 85-87.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.018
    Abstract （415）      PDF （2095KB）（210）       Save
    Reticulitermes flavipes occurs frequently and distributes widely in the United States, mainly endangering wood and buildings. It successfully invaded France and other places via many transmission routes, and now widely distributes around the world. CLIMEX+GIS model was used to analyze and predict the potential distribution of Reticulitermes flavipes in China. The results showed that Reticulitermes flavipes had a wide distribution, mainly in centre and south China and with a wide high-potential region. China was rich in total timber resources but per capita was low. It was suggested that quarantine measures should be strengthened in the main timber producing areas in southwest and southeast China to strictly prevent the pest from entering China.
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    The collection and conservation of germplasm resources in mulberry natural area on the north and south slope of Tianshan mountains of Xinjiang
    LI Yong, MO Rong-li, HUANG Jin, YU Cui, ZHU Zhi-xian, DONG Zhao-xia, HU Xing-ming, DENG Wen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 88-92.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.019
    Abstract （572）      PDF （4942KB）（180）       Save
    In order to clarify the general situation of mulberry germplasm resources in the mulberry natural zone in the temperate and cool climate zone north of the Tianshan mountains in Xinjiang and the mulberry natural zone on the southern slope of the Tianshan mountains, a survey of mulberry germplasm resources in Shihezi city and Korla city in the region was carried out. A total of 63 mulberry germplasm resources were collected, including 52 female plants, 10 male plants, and 1 monoecious plant. The survey found that the mulberry germplasm resources in these two natural areas are very rich, with leaf-shaped leaves and whole leaves. Split leaves or full split, the color of mulberry is purple black, light black, black, pink white, off-white, pure white, etc., the soluble solid content was 10.3%~29.7%, and the total soluble solid content of mulberry in Korla city was higher than Shihezi city, the germplasm storage in different places was suitabled for cutting and budding. It was proposed to combine Xinjiang's unique ecological conditions, strengthen the protection of the place of origin, collect germplasm materials for off-site preservation, strengthen the general survey and publicity of ancient mulberry resources, and raise the awareness of germplasm resources protection of local residents.
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    Primary research on introduction experiment of dwarf chestnut cultivar ‘Yimengduanzhi' in Wuhan city
    HE Xiu-juan, QIU Wen-ming, XU Yu-hai, TONG Zhu, XIAO Cui, WANG Ze-qiong, SUN Zhong-hai
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 93-95.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.020
    Abstract （605）      PDF （1565KB）（233）       Save
    Dwarf northern chestnut（Castanea mollissima Blume） cultivar ‘Yimengduanzhi' was introduced from National Germplasm Repository of Walnut and Chestnut（Tai'an） to Wuhan city for experimental planting in 2013. After many years of cultivation and observation, the results showed that the plants were dwarf and grew robustly, generated short branches instead of long lateral branches, and precocity was early. The phenological periods are consistent with local late maturing varieties. The average height and crown diameter of tree after seven years of transplanting were 1.9 m and 1.6 m, equivalent to 53% and 47% of local cultivar ‘Luotianwukeli', average yield per plant was 1.46 kg, yield in crown projection per unit area was 0.76 kg/m2, fertility was high. The fruits are smaller than southern cultivars, mean fruit weight is 8.7 g, the nuts are perfect for stir-fry, with fine and smooth flesh. The variety has strong waterlogging tolerance and good adaptability to high humidity and rainy climate in Wuhan area, meanwhile the drought resistance is stronger than local varieties. The cultivar can grow well in Wuhan with few disease and pests, and easy cultivation and management.
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    Evaluation of participating cabbage varieties in Hubei Alpine
    ZHU Feng-juan, TAN Luo-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 96-101.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.021
    Abstract （358）      PDF （1585KB）（330）       Save
    101 participating cabbage （Brassica oleracea L.） evaluation tests were carried out at Hubei Alpine vegetable test station in Huoshaoping township, Changyang, the main Alpine vegetable producing area at an altitude of 1 800 m, and 17 excellent varieties were selected. The varieties with good comprehensive characters of ball type are C-9, C-30, C-34, C-35, C-40, C-42, C-43, C-44, C-46, C-57, C-58 and C-59. The varieties with good comprehensive characters of flat ball type are C-1, C-2 and C-70. The varieties with good comprehensive characters of chicken heart and cow heart types are C-72 and C-85.
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    Evaluation test of 14 varieties of line pepper
    WANG Zhen, XIAO Chun-fang, GAO Jian-hua, ZHANG Yuan-xue, ZHANG Deng-hong, YAN Lei, SHEN Yan-fen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 102-105.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.022
    Abstract （421）      PDF （1579KB）（501）       Save
    In order to solve the shortage of high-quality line pepper varieties in Enshi prefecture. The field performance, agronomic traits, yield and disease resistance of 14 line pepper varieties were compared in the high and low altitude locations of Enshi prefecture. The results showed that Chunyanjichang and Xinjiachangxianjiaowang had high yields, stable performance and well agronomic traits in the high and low altitude locations. They were suitable for planting in the high and low altitude locations. Chunyanjulong and Chunyan 13 performed well in high mountains, which were suitable for planting in high mountainous areas. Hongda 816, Jinghong 316 and Chunla 30 performed well in the low mountainous, which were suitable for planting in the low mountainous area.
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    Effects of amino acid water-soluble fertilizer on nutritional growth and fruit quality of Myrica rubra in greenhouse
    BAO Ri-zai, QI Xing-jiang, ZHENG Xi-liang, REN Hai-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 106-108.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.023
    Abstract （604）      PDF （1578KB）（334）       Save
    The problems of insufficient nutrient supply of bayberry[Myrica rubra （Lour.） S. et Zucc.] tree body, tree potential and fruit quality were declinded. In order to improve the vegetative growth and fruit quality, amino acid water-soluble fertilizer was sprayed at the fruit expansion stage of Biqizhong and Dongkui in greenhouse. The shoot length and shoot diameter of Biqizhong were 5.01% and 5.95% higher than the control respectively, the relative conductivity of Biqizhong was 44.88% lower than that of the control, and the contents of soluble solids, total sugar and vitamin C of Biqizhong fruits were 12.09%, 7.83%, and 10.67% higher than the control, respectively. The chlorophyll content of Dongkui was 13.87% higher than the control, and the contents of soluble solids, total sugar and vitamin C of Dongkui fruit were 6.18%, 7.28% and 7.52% higher than the control, respectively. In conclusion, the bayberry vegetative growth, and fruit quality were significantly increased by amino acid water-soluble fertilizer, and it is worthy of moderate application on bayberry in greenhouse.
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    Correlation analysis of tobacco leaf appearance quality and sensory coziness
    YAN Tie-jun, MA Jun-tao, LIU Wen-feng, XU Zi-cheng, ZHOU Hong-shen, PANG Zhe, PAN Ting-ting, WANG Lin, SHAO Hui-fang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 109-113.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.024
    Abstract （370）      PDF （1595KB）（212）       Save
    In order to study the effect of tobacco appearance quality on sensory comfort, simple correlation analysis and typical correlation analysis were used to analyze the appearance quality and sensory comfort evaluation data of 170 representative tobacco samples from 16 flue-cured tobacco growing provinces in the five major tobacco regions of my country. The results indicated that there were wide variations in the appearance quality of 170 selected samples, and the sensory comfort evaluation results were generally in line with the normal distribution; The results of simple correlation analysis showed that the color, flexibility, gloss intensity , thickness, resilience and total score in the appearance quality were extremely significantly positively related to the following sensory characterisitcs,i.e.,sweetness, clear, smooth, mellow, alcohol, clean, refreshing, moist and total sensory score; The results of the typical correlation analysis and the simple correlation analysis are basically the same, but mainly the correlation between the thickness, color and resilience in sensory comfort index is very significant. In a word, the color, thickness and resilience of tobacco leaf are very important for sensory comfort.
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    Preliminary study on the planting benefits of rapeseed “one vegetable and two uses” in mountainous area of northwest Hubei
    LI Wen-pin, XIAO Neng-wu, ZHANG Yong-yi, GONG Yuan-cheng, WU Yao-qing, WANG Yuan-jin, MING Ting-ping, ZHU Jian-zhong, LAN Tian-yin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 114-116.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.025
    Abstract （462）      PDF （1569KB）（160）       Save
    Three varieties of rapeseed（Brassica napus L.）, Shishancaitai, Shishan 2017 and Qingza No.10, were used as materials,under suitable cultivation conditions, three varieties were compared and analyzed based on yield, quality, economic benefits and other indicators, in order to provide theoretical basis for screening out “one vegetable and two uses” rapeseed varieties suitable for planting in the mountainous areas of northwest Hubei. The results showed that the vegetable seed yield of Shishancaitai and Shishan 2017 was higher than 180 kg/667 m2, while the yield of Qingza No.10 was 151.7 kg/667 m2, which was relatively low. Qingza No.10 vegetable moss yield is high, but the quality is poor, the commodity rate is low, Shishan vegetable moss quality is good, taste is good, Shishan 2017 is second. Considering the yield, quality and economic benefit, Shishancaitai is suitable for planting in the mountainous area of northwest Hubei.
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    Regression analysis of node position of main stem leaf and main stem and leaf traits of castor
    JIN Fang-lun, JIN Ling, LUO Chao-bin, ZHAN Yong-fa, WU Kang-yun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 117-122.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.026
    Abstract （337）      PDF （1603KB）（142）       Save
    In order to provide theoretical basis for rational leaf picking of castor（Ricinus communis L.）, the regression analysis of leaf node position of main stem and its internode characters, leaf characters and quality characters were conducted from 2018 to 2020 with Dianbima No.2 as experimental material. The results showed that, ①Correlation coefficient analysis showed that there was a very significant positive correlation between different node positions and node length, leaf length, leaf width, petiole length, petiole width and transverse diameter, petiole basal gland length, leaf weight and net leaf weight of castor, and there was a significantly positively correlated with the thick transverse diameter of internode and petiole,there was a significant negative correlation with the number of leaves per kg, and no significant positive correlation with other indicators. ②Analysis of variance showed that there were significant differences between the leaf node of main stem and the node length of main stem, the length of the leaf, the width of the leaf and the length of the petiole. There were significant differences between the leaf node of main stem and the thickness and diameter of the main stem node, the petiole basal gland length and the net quality of the leaf. There was no significant difference between the leaf node of main stem and the other indicators. ③The regression equation fitting between the node position of main stem and main stem characters, leaf characters and quality characters of castor was conformed to the law of quadratic curve. According to the data fitting, when the best node position of main stem leaves is 9.20, the net weight of leaves in the fitting equation reaches 89.15 g at this node position. The effect of the node position on the main stem of castor on the leaf quality of the main stem was as follows, within a certain range of node position, the higher the node position of the leaf on the main stem of castor was, the more significantly the indexes such as leaf length, leaf width, petiole length, petiole width and transverse diameter, petiole basal gland length, leaf quality and leaf net quality increased. The leaf net weight at the ninth node was the highest, which provided a reference for reasonable leaf harvesting.
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    An investigation and analysis on mixed infection of Streptococcus and Pasteurella multocida in goats
    PAN Yan, HE Hui-li, FENG Shi-wen, LI Jun, YUAN Cui-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 123-126.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.027
    Abstract （432）      PDF （1662KB）（211）       Save
    Bacteriological and molecular biological methods were used for the diagnosis of one sample of sheep from a goat farm of Guangxi in August 2020, the isolated strain by morphology, physiology, biochemistry and 16S rDNA was sequenced, and identified as Streptococcus, Pasteurella multocida positive identified by PCR amplification. Drug sensitivity analysis were perfomed on the isolated pathogenic bateria. The drug susceptibility test showed that the bacterium was highly sensitive to penicillin, enoxacin, ofloxacin, oxytetracycline, cefotifuran sodium. The pathogenicity test showed that this strain has strong pathogenicity. According to the test results, the disease is caused by the mixed infection of Streptococcus and Pasteulobacter multocida.
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    Analysis on genetic polymorphisms of FSHβ gene in Jianghan chicken population
    HUANG Tao, PAN Ai-luan, SHEN Jie, WU Yan, PU Yue-jin, ZHANG Hao, SUN Jing, LIANG Zhen-hua, DU Jin-ping, ZHU Chang-you, PI Jin-song
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 127-130.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.028
    Abstract （333）      PDF （2871KB）（247）       Save
    In this study, the genome-wide re-sequencing technology was applied in Jianghan chicken population for genetic variation identification, the results showed that, 35 single nucleotide polymorphisms （SNPs） and 2 indels in the β subunit gene of follicular estrogen （FSH） were found, one single-base mutation in the cds could cause glycine to serine. Combining with bioinformatics softwares, M6A modification site prediction, regulatory element prediction and miRNA targeting sequence prediction were further analyzed. It was found that 7 single-base mutations were located in the potential regulatory element sequence, and 7 single-base mutations and 1 indel were located in the potential miRNA binding sequence. Those genetic mutations may be involved in the regulation of FSHβ gene expression, and play a certain role in the genetic characteristics of Jianghan chicken.
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    Determination of total flavonoids in roots,stems,flowers and leaves of Sedum aizoon L.
    WANG Li-ye, NIU Jiang-xiu, WANG Zhen-zhen, WU Yu-qi, MA Zi-yu, WANG Yan-yan, YU Zhi-bin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 131-135.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.029
    Abstract （363）      PDF （1733KB）（263）       Save
    After the root, stem, flower and leaf of Sedum aizoon L. were crushed, the soxhlet extraction was carried out with methanol as solvent. Then, the content of total flavonoids in different organs was determined by the developed ultraviolet spectrophotometry method at the optimal maximum absorption wavelength of 365 nm with rutin as reference substance and NaNO2-A1（NO3）3-NaOH as chromogenic agent. A good linear behaviors over the investigated concentration ranges of 8~40 μg/g were observed with the regression equation of y=0.017 5x+0.04（R2=0.999 9） for the test. The recoveries of added rutin at low, medium and high concentration levels in different organs was 92%~94%, RSD≤5%. The contents of total flavonoids in roots, stems, flower s and leaves of Sedum aizoon L. were （29.44±1.37）, （27.96±0.87）, （9.79±0.36） and （16.16±0.50） mg/g, respectively. This study established a simple and accurate method for the determination of total flavonoids in different organs of Sedum aizoon L., which provided a scientific basis for the detection and targeted development and utilization of the flavonoids in Sedum aizoon L.
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    Concentrations and risk assessment of heavy metals in edible fish collected from reservoirs in some areas of China
    HANG Lu, XIE Xiao-qiao, LIU Meng-ying, LU Xiao-hui, LI Jin-feng, HE Yao-wei, PANG Shi-ming, LIU Bao-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 136-139.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.030
    Abstract （637）      PDF （1935KB）（382）       Save
    To investigate the concentrations of heavy metals in edible fish, six heavy metals including zinc（Zn）,copper（Cu）, cadmium（Cd）, iron （Fe）, chromium （Cr）, manganese （Mn） in fish collected from reservoirs from Henan, Jiangsu, Zhejiang, Inner Mongolia and Jilin provinces in July to September, 2015, were determined using flame atomic absorption spectrometry （FAAS） and graphite furnace atomic absorption spectrometry（GFAA）. The results showed that the concentrations of heavy metal in fish samples were as order of Cr>Zn>Cu>Cd. The contents of Zn and Cr in all fish samples were higher than the standard limits, whereas the contents of Cu and Cd were lower than the standard limits. The highest concentrations of heavy metals were found in yellow croaker （Larimichthys） at 707.1 mg/kg, however, the lowest concentrations of heavy metals were found in carp （Cyprinus carpio）. The higher concentrations of heavy metals were found in carnivorous fish than omnivore fish. The human health risk assessment showed that non-carcinogenic health risks of Zn, Cu, Mn were found in the study area, and the carcinogenic risks of Cr in fish were greater than the relevant standard limits.
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    Determination of cantharidin in Mylabris cichorii Linnaeus by UPLC
    LEI Xin-yu, CHEN Song, LIU Chang-hua, ZHONG Ling-li, LI Xi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 140-142.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.031
    Abstract （351）      PDF （1660KB）（180）       Save
    A method for the determination of cantharidin by ultra performance liquid chromatography （UPLC） was established, and the difference in content of cantharidin between wild and artificial feeding Mylabris cichorii Linnaeus was compared. Cantharidin was extracted with 1% hydrochloric acid/acetone solution by ultrasonic,the UPLC method was performed on C18 column with mobile phase consisted of acetonitrile-water（40∶60） at flow rate of 0.2 mL/min, ultraviolet detector was adopted inwavelengh of 230 nm, the column temperature was 35 ℃, and injection volume was 2 μL. The results showed that cantharidin showed a good linear relationshipin at the range of 0.02~1.00 mg/mL（R2=0.999 9）. The average recovery of cantharidin was in the range of 97.9%~100.9% at different spiked levels, and RSD was in the range of 1.7%~3.8%. The content of cantharidinin wild and artificial feeding Mylabris cichorii Linnaeus was 3.08% and 1.68% respectively, which were both higher than that required in Chinese Pharmacopoeia the cantharidin content in medichine material source should not be less than 0.35%. This method is accurate and reliable for the determination of cantharidin in cantharides. The artificial feeding Mylabris cichorii Linnaeus can be used as medicinal source of cantharidin.
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    Origin discrimination of Hubei green tea based on the volatile flavor compounds
    WANG Xue-ping, ZHENG Peng-cheng, GAO Shi-wei, YE Fei, WANG Sheng-peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 143-147.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.032
    Abstract （373）      PDF （2343KB）（192）       Save
    The volatile components of 40 famous green tea samples in different tea areas in Hubei province were analyzed by gas chromatography-mass spectrometry （GC-MS）. The results showed that 71 volatile compounds were detected from 40 green tea samples. Five, three and six characteristic volatile components were identified in Wuling Mountain and Yichang Three Gorges tea area in western Hubei , Qinba Mountain tea area in northwest Hubei , Dabie Mountain in eastern Hubei. 40 tea samples from different areas could be distinguished preliminary by partial least squares discriminant analysis（PLS-DA）, and distinguished effectively based on the stepwise discriminant analysis. 13 volatile compounds, such as Nerol, cis-nerolidol, 2-aminobenzoic acid methyl ester, were introduced into the discrimination model. The correct rate of the established discrimination model was 100.00%, and the cross-verification discrimination rate was 97.50%.
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    Rural building information extraction based on built-up index and object oriented image
    MA Hai-rong, SHEN Xiang-cheng, LUO Zhi-qing, CHEN Pin-ting, GUAN Bo
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 148-152.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.033
    Abstract （423）      PDF （9874KB）（101）       Save
    Timely and accurately acquisition of the area and spatial distribution of rural building information would be valuable for acquisition of rural basic geographic data, rural land use planning, monitoring of rural land change and rationality evaluation of residential land use. Based on the Superview-1 satellite images, we propose a rural building information extraction method based on build-up remote sensing index and object-oriented image segmentation method. Firstly, we constructed two building remote sensing indexes and obtained the preliminary extraction results by threshold segmentation of the build-up index. Then the preliminary extraction results were optimized by the object-oriented segmentation results. The results showed that based on the method we proposed it can effectively extract the information of rural buildings.
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    Farmland boundary extraction from UAV remote sensing images for agricultural applications based on improved Mean Shift
    ZHENG Ming-xue, LUO Zhi-qing, CHEN Pin-ting, GUAN Bo, MA Hai-rong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 153-156.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.034
    Abstract （420）      PDF （3875KB）（334）       Save
    Timely understanding of the spatial distribution of crops is of great significance for scientific management and crop increase. UAV remote sensing system has unique advantages in the application of large-area agricultural remote sensing images because of its advantages of mobility, low cost and high resolution image acquisition. To solve the problem of the difficulty of boundary extraction in UAV images, such as the time and effort of artificial vectoring and the common over-segmentation of existing image segmentation methods, an automated boundary extraction process based on improved Mean Shift is proposed. According to the global characteristics of the farmland itself and the local characteristics of the crops in the farmland, the method combines the pixel location information and image color information to describe the farmland boundary characteristics, in accordance with the spatial bandwidth setting principle. The experimental results show that the improved Mean Shift method proposed in this paper can achieve excellent results for land parcel boundary extraction from UAV agricultural remote sensing images, which provides support and inspiration for other scholars to carry out farmland parcel boundary research.
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    Inversion of Chl-a concentration in Jingpo lake based on Landsat 8 OLI data
    LIU Yu, ZHU Dan-yao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 157-162.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.035
    Abstract （486）      PDF （2241KB）（454）       Save
    In order to select the Chl-a remote sensing monitoring model suitable for Jingpo lake, combined with the measured Chl-a concentration in July 2018 and the synchronous Landsat 8 OLI image, this study established the Simple Linear Regression （SLR） and Multiple Linear Regression （MLR） of Chl-a concentration, and evaluated the prediction effects of the two models according to the principle of optimal fitting degree and verification accuracy. The results showed that the MLR model with four bands （B2, B3, B4 and B5 bands） has better inversion accuracy than other models. From the spatial distribution of Chl-a, the center of the lake is the low-value area, and the estuary of the river is the high-value area。
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    Research on the current situation of rural emergency management and its application countermeasures of information technology：Taking Hubei province as an example
    MEN Yu-ying, LEI Huang-yuan, LI Fang, WU Yu, WANG Ya
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 163-167.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.036
    Abstract （459）      PDF （1556KB）（216）       Save
    Rural emergency management is an important part of the national emergency management system. The state has put forward new requirements for promoting the modernization and informatization of the basic level emergency management system and its ability. This study carried out the corresponding theoretical research on the information application basis of emergency management, and carried out a comprehensive evaluation on the rural emergency management ability in Hubei province on the basis of the research on the evaluation index system,as well as the evaluation model construction of emergency management ability. The analysis showed that there were some problems in rural emergency management in Hubei province, such as imperfect information overall planning mechanism, imperfect information facilities and conditions, and the supply level of information resources needs to be improved. On this basis,some suggestions were proposed, which included using information means to optimize the overall planning mechanism of emergency management, strengthening the hardware conditions and guarantee system construction of emergency management and promoting the popularization of emergency management knowledge and the construction of information resources.
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    Expression analysis of PpPRR5 gene in pear genotypes with different degrees of photosynthetic rate
    LIU Zheng, AN Lin, WU Tao, QIN Zhong-qi, YANG Li, CHENG Yin-sheng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 168-171.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.037
    Abstract （297）      PDF （1606KB）（195）       Save
    Improvement in photosynthesis is an effective way to further increase yield potential in fruit crops. Circadian clock genes could be adjusted by environmental cues, and thereby regulate photosynthesis. The differences of photosynthesis of different types of pear varieties （including Pyrus pyrifolia, Pyrus bretschneider and western pear） were studied and analyzed, and the expression level and change pattern of PpPRR5 gene in different varieties were detected. The results showed that significantly different levels of net photosynthetic rate were observed in five pear genotypes. Pyrus pyrifolia Nakaicv. ‘Cuiguan' had the highest levels of net photosynthetic rate. Pyrus bretschneider maintained moderate levels of net photosynthetic rate. Pyrus communis L. cv. ‘Abate Fetel' showed the lowest levels of net photosynthetic rate. There was a negative correlation between the expression of circadian clock gene PpPRR5 and the capacity of pear genotype for photosynthetic rate. The result suggests that PpPRR5 acts as a negative regulator of photosynthetic performance.
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    Analysis of endophytic bacterial diversity and metabolic function in Pinellia ternata from Hubei based on 16S rDNA
    WANG Fan-fan, TANG Tao, GUO Jie, DUAN Yuan-yuan, GUO Xiao-liang, YOU Jing-mao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 172-176.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.038
    Abstract （374）      PDF （2494KB）（245）       Save
    In order to explore the diversity, abundance and flora function of endophytic bacteria in Pinellia ternata in Hubei, this study randomly collected samples of Pinellia ternata plants, extracted endophytic bacterial genomic DNA, and obtained 16S rDNA V3~V4 fragments by PCR amplification. The IlluminaMiSeq high-throughput sequencing technology was used to analyze the endophytic bacterial flora structure in Pinellia ternata plants. A total of 39 537 effective sequences and 681 OTUs for species classification were obtained, including 6 phylum, 10 class, 23 order, 29 family, 45 genus, 26 species of bacteria. The analysis of colony diversity indicated that Proteobacteria was the dominant bacteria atthephylumlevel, Mitochondria and Pseudomonadaceae were the dominant bacteriaat the family level. Functional prediction results indicated that most of the genes encoded by endophytic bacteria were related to metabolism, followed by genetic information processing and environmental information processing.
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    Discovery of DNA ligase IV inhibitor through a docking-based screening and CRISPR/Cas9 study
    XIAO Hong-wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 177-180.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.039
    Abstract （410）      PDF （3725KB）（277）       Save
    In order to screen for inhibitors targeting DNA ligase IV to achieve more effective gene-directed insertion, molecular docking technology was used to screen out small molecule compounds with similar effects to the inhibitor SCR7 targeting DNA ligase IV in the previous study. In this study, three small molecule compounds, nocodazole, Fisetin and Methylene blue, which are consistent with the compounds stored in this unit, were screened. By using the truncated Firefly Luciferase luciferase reporter vector by the T11 site sequence of the MSTN gene and CRISPR/Cas9-gRNA-T11 vector to co-transform cells, combined with different small molecule compound treatments. The results showed that without treatment with small molecule compounds, NHEJ repair occurs at the truncated position of firefly luciferase, and a large amount of active firefly luciferase cannot be obtained; after treatment with small molecule compounds, the intracellular NHEJ is inhibited, and the HDR efficiency was improved. A large amount of active firefly luciferase was obtained. The firefly luciferase test results after treatment with nocodazole, Methylene blue and Fisetin were 65 256.3, 53 713, and 77 058.3, respectively, which were 1.6, 1.3 and 1.8 times of the firefly luciferase test result 41 905.3 after SCR7 treatment. The results of firefly luciferase after SCR7 treatment were 6.4, 5.3 and 7.6 times higher than 10 120. The screening strategy used in this study is correct, and the small molecule compounds selected are inhibitors with DNA ligase IV inhibitory activity, laying the foundation for subsequent research.
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    Analysis on the coordination degree influencing factors of China's tourism economy
    HE Ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 181-185.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.040
    Abstract （388）      PDF （1608KB）（184）       Save
    In this paper, 20 indicators of the four systems which is basic support system, social support system, public service system and ecological environment system were selected as the evaluation index system. Grey relational analysis and coupled coordination degree model were adopted to calculate and analyze the data from 2010 to 2018. The research found that the coordination degree of China's tourism economic system basically presented an increasing trend year by year, but the coordination degree was generally not high, in a mild imbalance state, the influence intensity difference of each influencing factor on the tourism economic system was little, the overall balance, the influence intensity difference of each index inside the system was not obvious. Therefore, on the basis of maintaining a balanced development, the tourism economy system has a large room for improvement.
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    Research on the evaluation and development of ecological health tourism resources based on AHP method：A case study of Qinling Mountains in Shaanxi province
    YE Yin-ning
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 186-190.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.041
    Abstract （375）      PDF （1623KB）（225）       Save
    Taking Qinling Mountains in Shaanxi province as an example, the evaluation index system of ecological health tourism resource is constructed by using AHP method, including comprehensive evaluation layer, project layer and factor layer. The evaluation results show that the weight of environment value is the highest, tourism resource value second highest and development condition the lowest. Finally, according to the evaluation result, the countermeasures for the development of ecological health tourism in this area were proposed from the two levels of the government and tourism enterprises, in order to promote its development.
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    Evaluation of ecological efficiency in Jiangsu province based on Super-SBM model
    ZENG Qing-shun, LI Yong-zheng, ZHOU Zi-yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 191-195.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.042
    Abstract （409）      PDF （1601KB）（161）       Save
    Considering the unexpected output in the production process, using Super-SBM model and Malmquist index, the ecological efficiency of 13 prefecture-level cities in Jiangsu province from 2009 to 2018 was measured from the perspective of input-output, and Tobit model was used to explore the influencing factors of their temporal and spatial differences. The results show that the overall level of ecological efficiency of 13 cities in Jiangsu province shows a downward trend from 2009 to 2018; Scale efficiency and comprehensive technical efficiency are the driving forces to promote the growth of ecological efficiency, while technological progress restricts the growth of ecological efficiency, while government support for science and technology will have a significant impact on the improvement of ecological efficiency. Therefore, it is necessary to promote the efficient transformation of scientific research achievements into actual productivity, attract innovative talents and inject new vitality into regional development.
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    Research on the coordinated development of industrial structure and ecological environment based on coupling model：Taking Shangluo city in Shaanxi province as an example
    ZHANG Yan, WU Yu-jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 196-200.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.043
    Abstract （355）      PDF （1609KB）（202）       Save
    From two aspects of industrial structure and ecological environment, the evaluation index system of coordinated development of industrial structure and ecological environment was constructed. Based on the coordinated development model,the coordinated development level of industrial structure and ecological environment in Shangluo city was evaluated. The result shows that from 2007 to 2017, the comprehensive level of industrial structure in Shangluo city increased from 0.197 63 to 0.605 84, the ecological environment quality comprehensive level increased from 0.129 37 to 0.349 20, the coupling coordination degree between the two increased from 0.553 2 to 0.911 9, now it is in the stage of high quality and coordination development. Based on this, some suggestions are put forward, such as determining the government's responsibility for environmental protection, improving the supervision and coordination mechanism, accelerating the development of modern service industry, increasing the proportion and level of tertiary industry, and vigorously promoting ecological construction.
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    Research on the impact of the “crayfish-rice cultivation” model on national food security：Based on a survey in Qianjiang city,Hubei province
    ZHANG Yong, WU Xue-bing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 201-204.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.044
    Abstract （429）      PDF （1561KB）（495）       Save
    The “crayfish-rice cultivation” model has increased the income level of farmers, but how it affects national food security is worthy of attention. Taking Qianjiang city in Hubei province as an example, the impact of the “crayfish-rice cultivation” model on food security was analyzed. The study found that the “crayfish-rice cultivation” model improved land production efficiency, played a leading role in the main business, saved food production costs, and improved the quality of food products. However, there were also some problem,such as farmers paid attention to crayfish farming and ignored rice planting, green and high-quality ecological crayfish rice could not obtain high-quality. Further targeted proposals are put forword to optimize the industrial structure, support the branded operation of crayfish and rice, achieve high-quality and high-priced crayfish and rice products, accelerate the promotion of moderate-scale operations, and strengthen the construction of modern agricultural industrial parks.
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    An empirical study on the influence of intergenerational support on spiritual poverty among the elderly in urban and rural areas
    ZHANG Qian-qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 205-210.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.045
    Abstract （361）      PDF （1628KB）（140）       Save
    Based on the panel data of China longitudinal aging social survey in 2014 and 2016, the random effect Logit model was used to explore the impact of two-way intergenerational support on the spiritual poverty of the elderly in urban and rural areas. The results show that the economic support, instrumental support and parental instrumental support will increase the spiritual poverty of the elderly, the meeting between parental economic support and emotional support can reduce the spiritual poverty of the elderly, while telephone conversation has no significant impact on the spiritual poverty of the elderly. The comparative analysis between urban and rural areas shows that the economic support from the offspring to the parents has a greater impact on the spiritual poverty of the elderly in urban areas; Calling will increase the spiritual poverty of the elderly in urban areas, but will reduce the spiritual poverty of the elderly in rural areas. To sum up, two-way instrumental support will increase spiritual poverty of the elderly, two-way emotional support will reduce spiritual poverty of the elderly, economic support from children to their parents will increase spiritual poverty of the elderly, while economic support from parents to their children will reduce spiritual poverty, and the impact of two-way intergenerational support on urban and rural elderly is different.
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    Analysis on the influence of social security on farmers' green fertilization behavior
    ZHANG Yin, LIU Wei-zhong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 211-214.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.046
    Abstract （319）      PDF （1549KB）（114）       Save
    In order to explore the impact of social security on farmers' green fertilization, this study analyzed the impact of social security on farmers' production behavior from three aspectsCredit acquisition effect, risk taking effect and system trust effect. It is found that good social security system can improve the possibility of farmers' access to credit support by economic effect and health effect, good expectations about future life can increase farmers' willingness to undertake risks, perceptions brought by the social security system can improve the system of the farmers trust, thus increasing the willingness of green fertilization. However, social security needs to develop to a certain stage before it can play its due role in promoting farmers' green fertilization and social governance. In order to improve China's rural social security mechanism, in view of China's current social security system,it is proposed to strengthen the top-level design, promote the coordinated development of urban and rural social security system, guide social organizations and citizens to participate in the social security system, and integrate agricultural production goals into social security.
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    Research on evaluation of implementation effect of beautiful rural construction： Take Heshuo county in Xinjiang as an example
    YANG Jin-rui, LIU Xiang-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 215-220.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.047
    Abstract （358）      PDF （1644KB）（156）       Save
    Based on the implementation effect of beautiful rural construction, this study established an evaluation system of 5 first-level indicators, 12 second-level indicators, and 37 third-level indicators in combination with national documents and reports. Using the analytic hierarchy process, the weight of the evaluation index of the implementation effect of beautiful rural construction was determined. At the same time, based on the results of a questionnaire survey on the residents of Heshuo county in Xinjiang, a fuzzy comprehensive evaluation model of the implementation effect of the beautiful rural construction was constructed to evaluate the implementation effect of the beautiful rural construction in Heshuo county. The results show that the current overall level of implementation of the construction of beautiful villages in Heshuo county is good, but there are still problems such as imperfect supervision measures, single support funding channels, and insufficient government guidance, and put forward corresponding countermeasures and suggestions.
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    Path selection on governance of rural hollowing problem from the perspective of land circulation
    GOU Wen-xue, HAN Jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 221-226.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.048
    Abstract （347）      PDF （1573KB）（249）       Save
    The core of China's rural hollowing problem is the land problem. The key to governance of rural hollowing problem is to improve the utilization efficiency of farmland and the degree of farmers' organization. Based on the spot investigation of the degree of rural hollowing in Guangxi and combined with statistical data, this study put forward the strategies to deal with the problem of rural hollowing from the perspective of land circulationAccelerating the intensive management of land, vigorously develop the road of cooperation, strengthen the overall planning of rural space and promote the reform of rural land system. We should make full use of the rural revitalization strategy, follow the development idea of urban-rural integration, gradually resolve the problems of urban-rural differences and regional development imbalance, and strive to achieve the two Centennial goals.
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    Evaluation and obstacle analysis of agricultural and rural modernization development level in Hubei province under the background of rural revitalization
    ZHANG Jie
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (23): 227-233.   DOI: 10.14088/j.cnki.issn0439-8114.2021.23.049
    Abstract （353）      PDF （1793KB）（232）       Save
    Based on the three meso dimensions of economy, society and ecology, 15 specific indicators were selected to establish a scoring system. Meanwhile, the entropy weight-TOPSIS method and obstacle factor diagnosis method were used to quantitatively study the level of agricultural and rural modernization development in Hubei province. The research shows that the level of agricultural and rural modernization in Hubei province is on the rise as a whole, the economic, social and ecological dimensions are also on the rise year by year, and some specific indicators fluctuate or decline. The main obstacles to the development of agricultural and rural modernization in Hubei province are labor productivity, agricultural mechanization level, per capita operating income of rural households, recreational consumption level of farmers, number of teachers per 10 000 people, number of beds in medical institutions and dosage per unit fertilization. Therefore, countermeasures and suggestions are put forward in terms of strengthening investment in scientific and technological innovation, promoting industrial integration, strengthening public infrastructure construction and protecting ecological environment.
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    Research progress of hemorrhagic disease from Monopterus albus
    WEN Zheng-rong, LUO Ming-zhong, CHAI Yi, YANG Dai-qin, LI Rui, WEI Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 5-10.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.001
    Abstract （528）      PDF （1677KB）（306）       Save
    Hemorrhagic septicemia was a kind of bacterial disease frequently occurring in rice field eels （Monopterus albus） at present. It was rapid outbreak, high mortality, strong infectivity, which brought great economic loss to rice field eel aquaculture. The research advances on diseases of A. hydrophila in M. albus include biological characteristic, identification methods, molecular biology, physiology and biochemistry, prevention and treatment measures were organized collectively. The prevention and control problems and the future development trend of hemorrhagic disease from in M. albus were summarized.
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    Advances in garden wastecompost used as herbaceous flowers substrate
    WANG Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 11-15.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.002
    Abstract （461）      PDF （1682KB）（393）       Save
    With the expansion of herbaceous flowers application in urban greening, new herbaceous flowers substrate has become an urgent problem to be discussed and solved by scholars at home and abroad. As an important part of the ecological chain of urban green space, the development of garden waste into grass planting substrate is an important way of resource utilization. In this article, the composting process of garden waste, the physical and chemical properties of composting products, the influence of composting substrate on herbaceous flower growth and the problems of garden waste composting as herbaceous flowers substrate were reviewed and discussed, in order to provide a new idea for the application of garden waste in herbaceous flowers substrate.
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    Research progress on the biology and prevention and control methods of Bradysia odoriphaga
    CHEN Li-xiao, LIU Zhi-pei, LI Liang-liang, FU Hong-yang, XIANG Shi-biao, CHANG Kun, LI Hui, CHEN Xiang, LI Ping, XIE Ju-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 16-19.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.003
    Abstract （409）      PDF （1684KB）（334）       Save
    In China, the Bradysia odoriphaga is the most important pest in the production of chives. Bradysia odoriphaga occurs in all leek producing areas, but the occurrence pattern is slightly different. The occurrence of leek maggots has been documented in the literature since the 1950s. However, it was not until the 1980s that taxonomists identified the Bradysia odoriphaga as the dominant group of leek root maggots. This paper comprehensively described the morphology and occurrence regularity of Bradysia odoriphaga, and described the control methods of agriculture, physics, chemistry and biology in detail, in order to provide reference for scientific control of Bradysia odoriphaga.
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    Effects of different planting methods on yield and economic benefit of high quality medium indica rice variety Huanghuazhan
    ZHU Bo-hua, LI Hong-yu, DONG Ming-tao, DUAN He-sheng, LI Zhi-qian, CHENG Jian-hui
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 20-22.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.004
    Abstract （462）      PDF （1655KB）（267）       Save
    In order to explore the effects of cost saving and efficiency increasing of different rice planting methods in Wuhan, a comparative experiment on yield and planting benefit under four light and simplified planting methods was carried out with manual direct seeding （MDS） of high-quality conventional medium indica rice variety Huanghuazhan as the control. The results showed that among four planting methods, mechanical precise-quantity hill-drop drilling （MPHD） saved labor, time and highest yield, followed the seedling mechanical broadcasting （MB）. However, it increased the labor cost in seedling raising and transportation, and the output was only 465.5 kg/hm2 higher than that of unmanned aerial vehicle direct seeding （UAVDS）. Therefore, from the results of cost saving and efficiency increasing, the light and simplified cultivation mode of rice planting in Wuhan should prefer to choose MPHD or UAVDS as far as possible in the future.
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    Characteristics and high-yield cultivation techniques of Hualiangyou 2824 in two-line medium hybrid rice
    WEN Ju, YANG Hong-yong, XU Zheng-meng, MU Tong-min, YU Wei-pu, XU Hui, LIU Mian, XU Guo-hua
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 23-26.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.005
    Abstract （1714）      PDF （1614KB）（328）       Save
    Hualiangyou 2824 is a new two-line medium hybrid rice mainly bred by Jingzhou Academy of Agricultural Seiences, which has the characteristics of high yield, short growth period and strong disease resistance. In cultivation, it is necessary to cultivate strong seedlings, reasonably dense planting, scientifically manage fertilizer and water, and reasonably control pests and diseases.
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    Breeding and application of a new sesame variety Ezhi No.9 with stable yield,wet endurance and suitable mechanization
    TANG Xue-hui, TAN Shun-lin, CHEN Han-jun, MU Jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 27-29.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.006
    Abstract （536）      PDF （1628KB）（261）       Save
    Ezhi No.9 is a new sesame variety bred by Xiangyang Academy of Agricultural Sciences with Ezhi No.4 as female parent and intermediate material “97079” as male parent. It was identified by the National Agricultural Technology Extension Center in May 2019. In recent two years, the variety has shown the advantages of stable yield, good quality, strong resistance and suitable for mechanized planting in the field production. Ezhi No.9 is suitable for demonstration and promotion in Hubei, Anhui, Jiangxi and other sesame producing areas.
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    Breeding and cultivation techniques of new adaptable maize variety Endan 532
    ZHU Xiang-fen, WANG Zhang-jiu, FENG Chun-fu, LIU Chuan-bin, DU Shi-kai, YANG Xiu-qian, LIU Hao-liang, WANG Jing, ZHOU Xing, WANG Li-ming
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 30-33.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.007
    Abstract （567）      PDF （3350KB）（240）       Save
    Endan 532 is a new maize（Zea mays L.） variety bred by Enshi Academy of Agricultural Sciences with self-bred line ‘568-11’ as female parent and inbred line ‘YA8201’ introduced from Sichuan Yayu Science and Technology Development Co., Ltd. as male parent. The main maize variety Eyu No.25 in Hubei was applied as the control,the regional test in 17 places of 2 years,and the site inspection and acceptance in one places of one years was carried out. It provided a reference for the application of new maize varieties Endan 532 and others. The average yield of regional trials in 2013—2014 was 9 835.60 kg/hm2, which was 7.60% higher than that of Eyu 25. In 2015, it passed the on-site inspection and acceptance of maize variety test mountain group in Hubei province. In all levels of experiments, Endan 532 showed the characteristics of high yield, stable yield, lodging resistance and disease resistance, which was suitable for planting spring maize in the middle and low altitude areas of Hubei province. It was approved by Hubei Crop Variety Approval Committee in 2016 （Approval No.：Eshenyu 2016006）.
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    Suitability analysis of purple sweet potato introduction in Wuling mountain area
    YE Xing-zhi, CHENG Qun, XU Yi, QU Yong, CHEN Qiao-ling, ZHANG Deng-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 34-36.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.008
    Abstract （350）      PDF （1627KB）（204）       Save
    In order to select the purple sweet potato[Ipomoea batatas （L.） Lam）] varieties suitable for planting in Wuling mountain area,a randomized block test design was adopted,and Ezishu No.1 was used as the control. Five introduced varieties,such as Shengzishu,Nanzishu 008, Mianzishu No.9,Nanzishu 014 and Nanzishu 015,were compared and analyzed in terms of agronomic characteristics, fresh potato yield and selenium content. The results showed that under the climate conditions of Wuling mountain area,the rate of large and medium-sized potatoes was 87.27%~96.15%,the yield of fresh potatoes was 39 151.20~51 586.80 kg/hm2,which was significantly different from the control,and the content of selenium was 0.29~0.54 mg/kg, all of which reached the standard of rich selenium. It was preliminarily determined that it was suitable for planting in this area.
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    Effects of intercropping pattern on population structure of intercropping millet and soybean
    CHEN Yu, YUAN Hong-an, HAN Fang, ZHENG Tai-bo, ZHAN Qiang, WANG Hai-long
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 37-40.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.009
    Abstract （440）      PDF （2086KB）（342）       Save
    Using millet variety Changsheng 07 and soybean variety Zhonghuang 30 as materials, the effects of different millet intercropping soybean models on the light exposure in different leaf layers and platnt growth of millet and soybean under different intercropping pattern were analyzed, and the effects of intercropping patterns on the accumulation and distribution of photosynthetic products in millet and soybean were analyzed. The results showed that different intercropping patterns promoted the dry matter accumulation of millet, increased spike length and single spike weight, and facilitated the formation of large spikes in millet. Due to the shading effect of millet, dry matter accumulation, effective pod number per plant and 100-seed weight of soybean were reduced. The total yield of the four intercropping modes was higher than that of the single cropping soybean, and the difference between the total yield of the intercropping mode M3S3 and that of the single cropping millet was small. M3S3 treatment （Planting 3 rows of millet and 3 rows of soybean,the row spacing of millet is 25 cm, the plant space of millet is 10 cm, the row space of soyben is 40 cm, the plant space of millet is 14 cm） is a suitable cultivation method.
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    Visualization analysis of registered pesticides of plant growth regulator for cotton
    ZHANG Jiao-hai, ZHANG You-chang, BIE Shu, WANG Xiao-gang, SHAO Jing-tao, CHI Li-jun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 41-45.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.010
    Abstract （374）      PDF （3702KB）（334）       Save
    Python software was used to conduct visual statistical analysis on pesticide registration of existing plant growth regulators in cotton, and the research and application status of several main plant growth regulators in cotton, such as gibberellin acid, methylpiperonium, sarcomere, thifenuron and ethephon, were briefly described.
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    Screening and evaluation of organic matter degrading bacteria in rice-crayfish co-culture （RCIS）
    ZHENG Jiao-li, YAO Jing-wu, HUANG Da-ye, YANG Dan, WANG Bei-bei, CAO Chun-xia
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 46-50.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.011
    Abstract （317）      PDF （2233KB）（190）       Save
    Six strains of organic matter degrading bacteria were screened from environment of rice-crayfish co-culture（RCIS）, all of which were identified as Bacillus sp.. Among them, OC-1, OC-2, OC-3 and OC-6 were all classified as Bacillus aryabhatta, OC-4 was identified as Bacillus flexus, and OC-5 was identified as Bacillus marisflavi. These strains can efficiently degrade organic matter andammonia in the bait culture medium, and the COD degradation rate of these strains was more than 85% after three days of cultivation. OD-1, OD-2 can quickly and efficiently degrade the organic matter in bait culture medium. The high degradation efficiency may be related to its ability to secrete a variety of extracellular enzymes. These two strains had application potential.
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    Research and analysis on soil of peanut cultivated land in Dabie mountain area of Hubei province
    LI Ning, WANG Ming-hui, WU Peng, XIAO Qi-sheng, ZHAO Jun-li, TAO Jiang, XU Hua-tao, FAN Zhou-xiong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 51-54.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.012
    Abstract （460）      PDF （2531KB）（391）       Save
    In order to understand the soil condition of peanut farmland in Dabie mountainous area of Hubei province, 88 samples of soil were tested and analyzed from 7 main peanut-growing counties and cities, different farming modes and soil types in the Dabie mountains of Hubei province. The results showed that the peanut arable land in the Dabie mountains of Hubei province was generally weakly acidic, and the average soil pH was 6.12, which was a slight variation; The content of total soil carbon was low, and the content of total soil nitrogen, available potassium, and available phosphorus were generally higher; The soil alkalinity nitrogen content was overall low; The soil pH of the peanut farmland with different planting methods was weakly acidic, and the soil nutrient of the peanut farmland in rotation was better than that of continuous cropping in winter, but there was no significant difference; The particle size composition of peanut farmland soil in Dabie mountain area of Hubei province was basically coarse powder>sand>clay.
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    Evaluation on the benefit of applying microbial agent to reduce nitrogen application in Ziziphus jujuba in the fluvo-aquic soil area：Based on fuzzy comprehensive evaluation method
    LIU Quan-feng, JIN Hui-shang, SUN Yi, WU Ting, YUE Lei, SUN Yue-li, ZHANG Li-shu
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 55-58.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.013
    Abstract （373）      PDF （1695KB）（205）       Save
    The fuzzy comprehensive evaluation method was applied in this study. The multi-factor secondary evaluation index system was established, which included 8 indexes from 3 aspects of society, economy and ecological environment to quantitatively evaluate the reduction of nitrogen application by microbial inoculation of Ziziphus jujuba in the fluvo-aquic soil area of Cangzhou, in order to screen the best ratio of microbial inoculants and nitrogen fertilizers suitable for the area. The results showed that the social, economic, ecological environment and comprehensive benefits of 80% nitrogen fertilizer+microbial agent treatment were higher.
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    Effects of different potassium fertilizer on yield,quality,photosynthesis and economic benefit of potato
    CHEN Guang-xia, KONG Jin-hua, KONG Hai-ming, YANG Yu, LIU Fang, YANG Yuan-jun, GUO Xiao, YANG Xiao-hui, DONG Dao-feng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 59-62.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.014
    Abstract （439）      PDF （1693KB）（197）       Save
    Pot and field experiments were carried out to study the effects of potassium chloride and potassium sulfate on yield, quality and photosynthesis of potato. The potato varieties Xisen 6 and Favorita were used as experimental materials in the pot experiments. And used potassium chloride 1 117 mg/L（equivalent to K2O 700 mg/L）, potassium sulfate 1 297 mg/L（equivalent to K2O 700 mg/L） two treatments. Field experiment Favorita was used as the experimental material, and potassium chloride （containing K2O 62.5%） was used for 480 kg/hm2 （containing K2O 300 kg）, potassium sulfate （containing K2O 54%） 555 kg/hm2 （containing K2O 300 kg）, potassium chloride 240 kg/hm2 （containing K2O 10 kg）+potassium sulfate 278 kg/hm2 （containing K2O 150 kg） were used in the three treatments. The comparison was farmers’ routine fertilization, NPK ternary compound fertilizer （N 15%, P2O5 15%, K2O 15%）, 1 500 kg/hm2, and organic fertilizer 750 kg/hm2. The results showed that the application of chlorinated potash fertilizer could improve the tuber yield, dry matter and starch contentin in pot experiment. When potassium chloride fertilizer was applied in Dawu experimental site, the revenue increased by 7 062 yuan/hm2, decreased by 2 748 yuan/hm2 when potassium sulfate was applied, and increased by 4 335 yuan/hm2 when potassium sulfate was combined with potassium chloride. Compared with the control, potassium chloride increased the yield by 3 663 yuan/hm2, potassium sulfate decreased by 2 121 yuan/hm2, potassium chloride and potassium sulfate increased the yield by 2 289 yuan /hm2 in Dongguo experimental site.
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    Preliminary study on forecasting and warning of a short heavy rainstorm in Jingzhou city
    WEN Hai-song, ZHAO Zhuo-xun, ZHANG Jing-jing, WEI Fan, LEI Yan-sen, TAN Jiang-hong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 63-69.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.015
    Abstract （515）      PDF （19248KB）（61）       Save
    Based on real-time high-altitude and surface meteorological data, ERA-interim reanalysis data and radar data from Europe, a local heavy rain event occurred in Jingzhou city of Hubei province on the morning of June 9, 2017 was analyzed. The results showed that the short-term heavy rain occurred under the favorable weather circulation background, 500 hPa trough moved eastward and superimposed. The low trough in northern Hubei leaded the cold advection to the south, and Jingzhou city lied in the large scale Meiyu front cloud system. Heavy rainstorms were caused by two convective storms. The former convective storm was a super heavy rain storm. During the precipitation process, new convective elements were triggered at the back of radar echoes, forming backward propagation, which was conducive to the occurrence of heavy rain, Before the occurrence of heavy rain, the low-level jet developed vigorously, and the sounding map was composed of upper dry and lower wet, the convective effective potential energy was more than 1 000 J, and the EC fine grid data was forecast. The strong divergence in the upper layer contributed more to the heavy precipitation, and the period of the heavy precipitation corresponded well to the period of the whole layer’s strong upward motion, and the water vapor channel existed in the boundary layer 925 hPa during the heavy precipitation. The analysis of radar data showed that the maximum hourly precipitation was 78 mm at 5：00 on the 9th, and early warning can be considered at this time. Storm tracking information showed that M2 super-monomer was formed at about 5：15, the maximum reflectivity was above 50 dBZ, the vertical liquid water content increased from 25 kg/m2 to 40 kg/m2, hail index and strong hail index both appeared to jump. At this time, it was the beginning stage of heavy rainfall. Considering the comprehensive analysis of radar data, if short-term warning was issued at this time, the advance amount was relatively large and the accuracy was high.
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    Application of ERA5 reanalysis data in wind energy resources
    HE Li-wei, SUN Peng-jie, ZENG Qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 70-75.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.016
    Abstract （626）      PDF （6673KB）（655）       Save
    According to the geomorphic characteristics of Hubei province, it is divided into eight sub regions. Based on the monthly average wind speed of 10 m above the ground in 76 meteorological stations and ERA5 reanalysis data in the past 20 years（2000—2019）, the correlation between them is analyzed. Combined with the wind speed value of 70 m height of 110 wind measuring towers in the province, the wind speed at 70 m height derived from 10 m wind speed, longitude and latitude and altitude of meteorological stations is constructed by using multiple regression method. The results show that the reanalysis data can well reflect the spatial distribution of the wind speed trend in the whole province, with high in the middle and low in the east and west; The wind speed of the reanalysis data is larger than that of the meteorological station, with an average of about 0.8 m/s; The calculation results show that the Tongbai mountain and Dahongshan area in the northeast of Hubei province, the Nanzhang-Jingmen area in the central part, the Dabie mountain and Mufu the high altitude area of the mountain is the area with better wind resources; The test results show that the overall calculation results are small, especially in the western Hubei mountain area. The calculation results of VIII area in Jianghan plain are better, especially in Tianmen area.
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    Field efficacy trial of different agents against potato virus disease in Enshi prefecture
    ZOU Ying, ZHANG Yuan-xue, YAN Lei, GAO Jian-hua, HAO Miao, ZHANG Deng-hong, SHEN Yan-fen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 76-78.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.017
    Abstract （445）      PDF （1763KB）（342）       Save
    Five ideal agents for the prevention and control of viral diseases were screened out, including morinidine hydrochloride, amino-oligosaccharide, antichitin, ningnanmycin, viralin. Taking Enshi prefecture local agricultural use of self-retention species Mira as the research subject, combining relevant agronomic measures, the prevention and control effects of the above five agents were studied for viral diseases. The results showed that amino-oligosaccharide and mononidine had better control effect on potato virus disease, and the relative control effect was 55.06% and 44.95%, respectively, and the yield increase was 22.71% and 21.38%, respectively, compared with CK.
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    Field efficacy of Bacillus thuringiensis NBIN863 on the late stage of muskmelon root-knot nematode disease
    CHEN Ling, LIU Nan-xi, WANG Meng-si, WANG Yue-ying, ZHU Lei, QIU Yi-min, MIN Yong, ZHOU Rong-hua, LIU Xiao-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 79-82.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.018
    Abstract （423）      PDF （1794KB）（237）       Save
    To detect the efficacy of Bacillus thuringiensis NBIN863 against crop root-knot nematode disease in the field, the muskmelon plants with severe root-knot nematode disease in the greenhouse were irrigated, and the efficacy of NBIN863 against the nematode disease was investigated. The results showed that when the muskmelon was harvested 30 days later, in the group treated with NBIN863 agent, the proportion of dead plants was 40.00%, the average weight of obtained muskmelon was 2.41 kg, and the number of nematodes in muskmelon rhizosphere soil was about 22 heads per gram of rhizosphere soil. Compared with the control group treated with avermectin and water, the NBIN863 agent significantly reduced the root-knot nematode disease, improved the plant survival rate, and increased the muskmelon yield.
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    Control effect and safety of 960 g/L metolachlor EC against weeds in tomato fields
    HUANG Jing, YE Shi-lun, ZHU Jian-yi, XIAO Xue-qin, CHEN Jiu-xun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 83-85.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.019
    Abstract （672）      PDF （1770KB）（349）       Save
    In order to underatand controlling effect and safety of 960 g/L metolachlor EC against weeds in tomato fields. Tomato variety of Chuanke No.8 was used as experimental materials,control effect and safety of 960 g/L metolachlor EC against annual grass weeds and some broadleaf weeds in tomato fields was studied by field plot test. The results showed that the control effect against Digitaria sanguinalis （L.） Scop., Echinochloa colonum （L.） Link., Ludwigia hyssopifolia （G.Don）Exell, Amaranthus lividus L., Cyperus difformis L. was excellent by soil spray treatment, 1~2 days before tomato transplanting. The recommended dose （formulation amount） was 750.0~862.5 mL/hm2[720~828 （a.i.）g/hm2]. Control effect of 960 g/L metolachlor EC against common annual grass weeds and some broadleaf weeds in tomato fields was excellent. However, due to the rain on the day after spraying, the tomato plant heights in the treatment areas were inhibited to some extent, and the plants were dwarfed, resulting in different degrees of yield reduction.
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    Studies on Echinochloa crusgalli for the screening of microbial herbicides
    ZHANG Zhi-gang, WANG Kai-mei, WU Zhao-yuan, WAN Zhong-yi, FANG Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 86-89.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.020
    Abstract （423）      PDF （1694KB）（171）       Save
    Digitaria sanguinalis as a reference target, the sensitivity of Echinochloa crusgalli was tested by 96-well plate assay with agar solution and small potted method. The comparison of herbicidal activities of herbicide standard compound, the fermentation broth of herbicide standard strain from fungi and actinomycetes was carried out by 96-well plate assay; The comparison of herbicidal activities of the fermentation broth of standard strain of fungi and actinomycetes was carried out by small potted method. The results showed that the sensitivity of Echinochloa crusgalli in 96-well plate assay was poor, especially not suitable for the screening of microbial herbicidal against Echinochloa crusgalli; The sensitivity of Echinochloa crusgalli and Digitaria sanguinalis in small potted method was similar, which was suitable for the microbial herbicide screening against Echinochloa crusgalli, with the outstanding advantages of high stability, strong resistance to microbial pollution, simple operation and so on; In view of the low sensitivity of Echinochloa crusgalli in herbicide screening, the method of selecting appropriate seedling stage was optimized.
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    Preliminary report on diseases and insect pests of loquat in Tongshan county and their control methods
    YUAN Guan-qiang, MEI Xian-qin, WU Zheng-li, BAO Hui-fang, WAN Zhong-yi, CHEN Yun-feng, WANG Hui-liang, HUANG Shu-min, MIN Yong, LONG Tong
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 90-93.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.021
    Abstract （391）      PDF （1668KB）（290）       Save
    In order to fully understand the occurrence and damage of loquat diseases and insect pests in Tongshan county, a systematic survey was conducted in Tongshan county, Hubei province from 2019 to 2021. The results showed that a total of 19 species of loquat diseases and insect pests were found in Tongshan county, including 9 diseases and 10 insect pests. Based on the comprehensive analysis of the damage degree and long-term observation, the present control targets of loquat in Tongshan county of Hubei province were yellow caterpillar of loquat, longicorn longicorn, wood lice, gray butterfly of loquat, leaf spot and rot. In addition, the damage of freezing was also serious, and the prevention and control of these main diseases and insect pests are summarized.
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    Screening of high-efficiency bioflocculant-producing actinobacteria and preliminary optimization of medium composition
    TIAN Yu-xi, CHEN Ling, MIN Yong, YANG Zi-wen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 94-97.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.022
    Abstract （389）      PDF （1843KB）（206）       Save
    In order to develop a strain with high flocculation activity for rural sewage treatment, actinomycete ws75382 with the flocculation rate 91.9% of kaolin was identified by 16S rDNA, and its medium composition were optimized by single factor test and orthogonal test. 16S rDNA identification showed that actinomycetes ws75382 had the highest similarity with Streptomyces cyslabdanicus. The initial culture medium of actinomycetes ws75382 had many components, and the concentration of carbon and nitrogen sources was higher. The optimized medium composition reduced the nitrogen sources by one component, and the concentrations of carbon and nitrogen sources reduced 40% and 30%, respectively. The optimized culture medium components were soybean powder 15 g/L, glucose 14 g/L, sodium chloride 8 g/L and calcium carbonate 3 g/L, and under the conditions the flocculation rate of kaolin was nealy 100%.
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    Herbicidal activity of Alternaria perpunctulata NBERC_H56 to Digitaria sanguinalis and the secondary metabolites produced by the strain
    WU Zhao-yuan, REN Meng-yao, ZHANG Zhi-gang, LIU Fang, ZHANG Ya-ni, FANG Wei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 98-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.023
    Abstract （337）      PDF （1764KB）（173）       Save
    A pathogenic fungus NBERC_H56 was isolated from the diseased plant of Digitaria sanguinalis, identified as Alternaria perpunctulata, and its fermentation broth had an obvious inhibitory effect on the growth of the seedlings of Digitaria sanguinalis. In order to clarify the active substance basis of NBERC_H56, the secondary metabolites of the strain were studied. The results showed that three compounds were obtained by large-scale fermentation, extraction and preparation via high performance liquid chromatography, and were identified as Curvulin （1）, Alternariol （2） and Zinniol （3） by LC-MS and NMR. Alternaria perpunctulata was found to have herbicidal activity for the first time, and its secondary metabolites were isolated and identified for the first time.
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    The study of antimicrobial drugs screening using Connectivity Map database
    LIU Man-li, SHU Fen, ZHANG Ya-ni, FANG Wei, WANG Kai-mei, WU Zhao-yuan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 101-104.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.024
    Abstract （781）      PDF （1817KB）（284）       Save
    In order to screen new antibacterial agents and verify their antibacterial activity in vitro, the antimicrobial agents were screened by Connectivity Map （Cmap） database based on the gene chip results of streptococcus suis infected THP-1 cells. Antibacterial potential drugs were screened and the minimum inhibitory concentration（MIC） and the inhibitory effect on hemolytic activity of Escherichia coli, Pseudomonas aeruginosa, Staphylicoccus aureus, Erysipelothrix rhusiopathiae, and Streptococcus suis were determined in vitro. The results showed that three alkaloids lycorine, betonicine and ellipticine, were screened out by Cmap. The MIC results showed that ellipticine had significant inhibitory effect on Escherichia coli, Staphylicoccus aureus, Erysipelothrix rhusiopathiae, and Streptococcus suis. And ellipticine had significant inhibitory effect on hemolytic activity of Staphylococcus aureus and Streptococcus suis. But the antibacterial effect of lycorine and betonicine were not significant.
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    Study on the mutation of proteinase K and its properties
    WANG Ying, LIU Xiao-yan, MIN Yong, ZHOU Rong-hua, RAO Ben
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 105-107.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.025
    Abstract （452）      PDF （2268KB）（262）       Save
    A wild-type proteinase K expression strain was obtained. Then three amino acid residue positions that had potential effects on its thermal stability were obtained through software prediction, and point mutations were performed on them in Pichia pastoris GS115, respectively. Secreted expression was carried out, a proteinase K mutant pPicZαA-PK108 with a 30% increase in thermal stability and an approximately 50% increase in specific activity was obtained. This study had played a certain role in promoting the application of proteinase K in industry. It can reduce the amount of proteinase K used in detergent and food industry, and reduce production costs. In addition, it can also improve the efficiency of virus inactivation in sewage and reduce the environment pollution.
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    Investigation on alien invasive plants in the green space of the main urban park in Chongqing city
    CHEN Shuang, WANG Sheng, CHEN Xin-xin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 108-111.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.026
    Abstract （396）      PDF （1668KB）（374）       Save
    The species composition, origin and faunal composition of alien invasive plants in the green space of the main urban park in Chongqing were analyzed. The results showed that there were 41 species of alien invasive plants belonging to 34 genera and 19 families in the green spaces of Chongqing's main urban parks. Among them, garden invasive plants belonged to 17 species belonging to 15 genera and 11 families, and garden invasive weeds belonged to 24 species belonging to 19 genera and 10 families, the rest were weeds, the most were species of Asteraceae; In terms of origin, 33 species are from America, the largest number of species, and the rest are from Europe, Asia, Africa, etc. In terms of family composition, single species and small family constituted the main body of alien invasive plant family in the green space of chongqing main city park. In terms of floristic composition, the floristic composition of both families and genera has obvious tropical floristic characteristics.
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    Association analysis on the dormancy degree and physical parameters in three species of weed seeds
    ZHANG Deng-hong, XIAO Chun-fang, WANG Zhen, GAO Jian-hua, ZHANG Yuan-xue, YAN Lei, ZOU Ying, SHEN Yan-fen
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 112-114.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.027
    Abstract （400）      PDF （1657KB）（215）       Save
    In order to explore the correlation between dormancy degree of weed seeds and physical parameters, weed seeds were selected as experimental materials and widely distributed in farmland. The dormancy characteristics of three weeds Digitaria sanguinalis （L.） Scop., Galinsoga parviflora Cav., and Polygonum persicaria L., which affected the growth of various crops, were studied. The results showed that the pH of seeds of Digitaria sanguinalis （L.） Scop. had a good linear correlation with germination rate; The seeds pH and the electrical conductivity of Galinsoga parviflora Cav. had good linear correlation with the germination rate of seeds. The linear correlation between the electrical conductivity and the germination rate in Polygonum persicaria L. seeds was obvious.
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    Comparison of ornamental characters and cross-compatibility in Hippeastrum rutilum Cultivars
    MENG Qing-zhong, LYU Bo, GUO Cong, CHEN Feng, XIANG Fa-yun
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 115-119.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.028
    Abstract （1127）      PDF （1999KB）（764）       Save
    31 Hippeastrum rutilum cultivars were used for observation and statistical analysis of their ornamental characters, and their cross compatibility was also studied. The results showed that different varieties of Hippeastrum rutilum had obvious differences in ornamental characters. The pure color varieties had red, orange, pink, white, etc., and the complex color varieties had stripes, spots and red edges on the basis of the main color system. The flower diameter of different varieties ranged from 5.2 to 23.1 cm, and the scape height ranged from 10.2 to 50.6 cm. Filament and style color is basically the same as the main color of petals, and anther color are yellow, purple, pink, white and so on. After pollination,Neno,Terra Mystica and Sweet Lillian do not bear fruit, while Picotee,Royal Velvet and Charisma all have good cross-compatibility.
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    Comparative analysis of the nutritional composition and antioxidant properties of four sand pear fruits in area of southern China
    YANG Li, CHENG Yin-sheng, WU Tao, LIU Zheng, NIE Xian-shuang, QIN Zhong-qi
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 120-123.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.029
    Abstract （454）      PDF （1883KB）（164）       Save
    The nutrient components and antioxidant performance indexes of four sand pear cultivars, Cuiguan, Cuiyu, Jinshui NO.2 and Xinshui pear cultivated in southern China were measured and analyzed. The results showed that the Jinshui NO.2 pear had the highest content of vitamin C, which was （3.59±0.02） mg/100 g; The Xinshui pear had the highest content of soluble solid, which was 12.32%±0.38%; The content of titratable acid in Cuiguan pear was the lowest, which was （0.60±0.07） g/kg; The Cuiyu pear had the lowest content of total phenol, which was （0.035±0.003） mg GAE/g, which cultivar of the fruit flesh was most resistant to browning. Correlation analysis showed that vitamin C and titratable acid were important factors affecting the antioxidant capacity of the pulp of these four sand pears. There was a significant positive correlation between total phenol and fruit soluble solid content, which was also a key factor to evaluate the nutritional level of sand pear fruit.
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    The growth characteristics of 2-year-old container seedlings of Phoebe zhennan cultured in different substrate formulas
    YANG Jie-feng, LUO Hai-bing, WANG Yang, HU Jian-min, XU Xiao-ting
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 124-129.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.030
    Abstract （442）      PDF （2040KB）（426）       Save
    To optimize the 2-year-old container seedling process of Phoebe zhennan, yellow topsoil, river sand, vermiculite and rotten sawdust were selected as the substrate ingredients, and three different substrate treatments were designed by single factor randomized block design to survey the growth of basal diameter and seedling height of Phoebe zhennan container seedlings. Logistic equation, chanter equation, exponential equation and single molecule equation were used to fit the growth model of container seedlings cultured in different substrates. Critical weighting method was used to determine the weights of seedling growth and grading parameters and the evaluation indexes of container seedlings of Phoebe zhennan was established. The results showed that there were significant differences in basal diameter and seedling height between different substrate formulas and the CK; The growth tendency of basal diameter and seedling height of 2-year-old Phoebe zhennan container seedlings in different substrate formulas was multiple “fast-slow-fast-slow” in the growing process. The change trend of basal diameter and seedling height was basically consistent with the growth time at the seedling stage; Logistic model had the optimal goodness-of-fit on the growth dynamics of 2-year-old container seedlings of Phoebe zhennan. The ratio of height to diameterand and the qualified rate of grade I seedlings were the key factors for the evaluation of seedling or substrate formulas. The formula of 30% river sand + 70% loess was a low input and high output substrate formula for container seedling of Phoebe zhennan.
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    Effects of meteorological conditions at different altitudes on frozen,heat injury and fruit quality of Eriobotrya japonica （Thunb.） Lindl.
    WEI Hua-bing, CHEN Zheng-hong, HE Hua-ping, WANG Hui-liang, LUO Xiang, JIANG E, ZHANG Peng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 130-135.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.031
    Abstract （460）      PDF （1935KB）（270）       Save
    Based on the results of random sampling survey and fruit quality measurement of Eriobotrya japonica （Thunb.） Lindl. at different planting heights in Tongshan county, Hubei province in May 2020, combined with the vertical distribution characteristics of meteorological elements in Eriobotrya japonica （Thunb.） Lindl. planting area of Tongshan county, the effects of altitude on frozen, heat injury and fruit quality of Eriobotrya japonica （Thunb.） Lindl. were analyzed, and the qualitative meteorological factors were analyzed. The results showed that the frozen and heat injury of Eriobotrya japonica （Thunb.） Lindl. varied regularly with altitude. Generally, the frozen injury increased with altitude, while the heat injury decreased with altitude. However, the degree of frozen injury decreased significantly in the inversion area of hilly hillside at the altitude of 150~250 m; In the area around the reservoir about 1 km below the altitude of 120 m, the degree of heat injury showed a downward trend. Mountain inversion and water temperature effect would affect the distribution of extreme low （high） temperature at different altitudes. The degree of frozen injury of Eriobotrya japonica （Thunb.） Lindl. in mountain inversion layer was lighter, and the heat injury near water area was significantly less. The quality indexes of Eriobotrya japonica （Thunb.） Lindl. such as weight, vertical diameter, soluble solid content, titratable acid content and solid acid ratio, varied regularly with altitude. Among them, the relationship between the weight of single fruit and the average temperature days of 15~20 ℃ in growth period, the content of soluble solid and the days of average temperature ≥25 ℃, titratable acid content and the daily temperature difference of fruit expansion period were significant, which were the essential meteorological factors of fruit quality change with altitude.
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    Evaluation of radish varieties in Hubei alpine exhibition
    ZHU Feng-juan, JIAO Zhen-biao, YAN Chen-huan, CUI Lei, DENG Xiao-hui, QIU Zheng-ming, TAN Luo-fei
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 136-143.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.032
    Abstract （391）      PDF （1660KB）（355）       Save
    172 participating radishes （Raphanus sativus L.） were evaluated at Hubei Alpine vegetable experimental station, Huoshaoping Township, Changyang Tujia Autonomous County, the main Alpine vegetable producing area at an altitude of 1 800 m. The results showed that 15 excellent varieties were screened out., The varieties with good comprehensive performance of white skin stick radish are RD-16, RD-17, RD-31, RD-53, RD-68, RD-85, RD-154, RD-167 and RD-170. The varieties with good comprehensive performance of white skin flat radish are RD-15. The varieties with good comprehensive performance of green skin radish are RD-171. The varieties with good comprehensive performance of red skin and purple skin radish are RD-39, RD-41, RD-42 and RD-124.
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    Development path of traditional Chinese medicine industry in the hilly area of Xianning city
    QIU Shou-zhe, ZHENG Li, XIA Wen-juan, SHI Shi-sheng, YANG Shuo, XU Sheng-wu, LI Jing-ying
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 144-150.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.033
    Abstract （417）      PDF （3508KB）（393）       Save
    Taking Xianning city of Hubei province as the research object, SWOT method was used to analyze the characteristics of environmental resource elements in Xianning city, clarify the development direction of the traditional Chinese medicine industry, optimize the development system and spatial layout of industry, in order to provide reference for the development path of traditional Chinese medicine industry in the hilly area of the south.
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    Study on functional components and targets of walnut in prevention and treatment of Alzheimer's disease based on network pharmacology
    XU Cheng-mei, CHEN Dan, XU Dong-yue, ZHAO-QING Yu-jing, LIN Yu-ping, ZHAO Sheng-lan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 151-159.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.034
    Abstract （395）      PDF （11745KB）（41）       Save
    The mechanism of walnut（Juglans regia L.） in prevention and treatment of Alzheimer's disease（AD） was explored based on network pharmacology. The active components and potential targets of walnut were obtained by TCMSP database and literature mining. The prediction and screening of AD related genes were performed using databases such as OMIM; Cytoscape 3.7.2 software was used to construct a “drug-active component-disease-target” network to formation of the interactive relationship of walnuts toprevent AD components and target, and analysis of GO function and KEGG pathway enrichment. The results showed that 29 walnut active ingredients were screened, 17 of which had 159 AD-related targets. PTGS1/2, RXRA, RELA, MAOB and NOS3 may be the key targets of AD. The main signal pathways were AGE-RAGE signaling pathway, atherosclerosis, PI3K-Akt signaling pathway, IL-17 signaling pathway and HIF-1 signaling pathway. Walnut can prevent and control AD through multi-component, multi-target, and multi-pathway. The components with the most targets are quercetin, oleic acid, and ellagic acid; the targets affected by the most compounds are prostaglandin G/H synthase, retinoic acid receptor RXR-alpha, transcription factor p65, amine oxidase [flavin-containing] B and nitric oxide synthase.
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    Isolation,identification and biological characteristics of a multidrug-resistant enterotoxigenic Escherichia coli
    WANG Ning-ning, LI Xiao-yue, LIU Ze-wen, LIU Wei, GAO Ting, ZHOU Dan-na, YANG Ke-li, GUO Rui, LIANG Wan, CHEN Wen-jie, BEI Wei-cheng, TIAN Yong-xiang, YUAN Fang-yan
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 160-163.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.035
    Abstract （381）      PDF （2378KB）（248）       Save
    Newborn piglets on a pig farm in Hubei province developed a disease with severe diarrhea, discharge of yellow feces and rapid dehydration death as the main symptoms. The disease materials submitted for inspection were identified through bacterial culture, gram staining, PCR and other methods to determine the newborn piglets. The disease is caused by infection with enterotoxigenic Escherichia coli. The results of the drug sensitivity test showed that the isolated strain was sensitive to quinolones, aminoglycosides, cephalosporins and other drugs; it was resistant to penicillins, tetracyclines,chloramphenicol,sulfonamides and ampicillin, florfenicol, tetracycline, doxycycline, sulfisoxazole, etc.
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    Study on the application of fermented Chinese medicine preparation to replace antibiotics in broiler diet
    WANG Dan, CUI Wei-tao, WANG Chun, KUANG Shi-chang, XU Qing-rong, XIAO Yun-cai, LI Zi-li, ZHOU Zu-tao
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 164-168.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.036
    Abstract （354）      PDF （1692KB）（175）       Save
    The purpose of this study is to evaluate the effects of fermented Chinese medicine （FCM） on broiler production performance, serum antioxidant index, immune function, intestinal morphology and caecum flora, and provide technical support for the application of FCM preparation in broiler production. A total of 288 1-day-old AA broilers were randomly divided into 3 groups, the control group was fed with basal diet, the antibiotic group was fed with basal diet containing 50 g/t chlortetracycline, and the FCM preparation group was fed with basal diet supplemented with 3 kg/t probiotic FCM preparation. The experimental period was 42 days. The results showed that the output weight of FCM preparation group was higher than that of control group and test group. Compared with the control group and the experimental group, the average daily gain of FCM group was increased by 8.19% （P<0.05） and 4.61% （P<0.05）, respectively. The feed to meat ratio was significantly decreased by 0.02 （P>0.05） compared with the antibiotic group. The serum antioxidant index was improved by FCM preparation. Compared with the antibiotic group, the thymus index of the FCM group increased by 61.96% （P<0.05）, and serum IL-1β, the content of endotoxin decreased by 28.73% （P<0.05） and 23.36% （P<0.05）, and the content of IL-6 and IL-10 increased by 117.63% P<0.05） and 36.85% （P>0.05）, respectively. Compared with the control group and antibiotic group, the sIgA content of ileum and cecum in the FCM group increased by 44.2% （P<0.05） and 66.9% （P<0.05） respectively, and 43.4% （P<0.05） and 65.5% （P<0.05） respectively. Compared with the control group and antibiotic group, the VH/VD values of ileum and cecum in the FCM preparation group were significantly increased. Compared with the control group and antibiotic group, the content of Lactobacillus in the FCM preparation group was the highest, increased by 40.66% and 24.27% （P<0.05）, the number of Faecalis prussii increased by 12.44% and 3.42% （P<0.05）, and the content of Salmonella decreased by 17.76% and 20.96% （P<0.05）. The FCM preparation had good probiotic function, which could improve the disease resistance, regulate the intestinal morphology and beneficial flora, and promote the production performance.
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    Isolation and identification of bacteria in fresh potato noodles and screening of bacteriostatic substances
    WEI Xiong-bo, BAI Yong-hong, BAO Yi-jiang, WANG Ya-jie, LIU Qian, REN Jian-fang, CHEN Guo-liang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 169-172.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.037
    Abstract （355）      PDF （2050KB）（180）       Save
    In order to explore the bacteria causing pollution and deterioration of fresh potato noodles during storage and find suitable bacteriostatic substances to prolong its fresh-keeping period. The contaminated bacteria were isolated and purified by plate line separation method, and preliminarily identified by morphological characteristics, physical and chemical properties and 16S rDNA sequence. The bacteriostatic test was carried out by adding 4 kinds of bacteriostatic substances such as sodium diacetate, potassium sorbate, crude extract from star anise essential oil and crude extract of citrus essential oil by filter paper method. The results showed that four strains were initially isolated from the contaminated potato noodles, one of which was Curtobacterium. The four bacteriostatic substances had certain bacteriostatic effects on the three susceptible bacteria of Curtobacterium, Escherichia and Bacillus Cohn, and sodium diacetate solution had the best bacteriostatic effect at the same concentration and could be used as a candidate inhibitor for fresh potato noodles susceptible bacteria.
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    Optimization of ultrasonic-assisted extraction of polyphenols from Chenopodium quinoa Willd. by response surface methodology and its antioxidant activity
    ZHU Kong-fei, WU Rong-zhen, WU Zi-wei, CHENG Li-na, SONG Ru
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 173-177.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.038
    Abstract （397）      PDF （2227KB）（213）       Save
    Taking red Chenopodium quinoa Willd. as the materials, the ultrasonic-assisted extraction method was applied to extract polyphenols from Chenopodium quinoa Willd.. The effects of particle size of material, the ratio of liquid to material, the extraction time and the extraction temperature on the extraction rate of polyphenols from Chenopodium quinoa Willd. were investigated by single-factor test. The response surface methodology was used to optimize ultrasonic-assisted water extraction of polyphenols from Chenopodium quinoa Willd. at room temperature and obtained the optimum conditions as follows： The particle size of 80 meshes, the ratio of liquid to material 100∶1（mL/g）, and the extraction time of 20 min. Under the optimum conditions, the extraction rate of polyphenols reached to 0.53%. The antioxidant analysis showed that the obtained polyphenols from Chenopodium quinoa Willd. extracts demonstrated strong DPPH scavenging capacity and total antioxidant capacity.
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    Analysis and evaluation of heat-not-burn cigarette and traditional cigarette pyrolysis products by fingerprint
    YANG Xue-yan, DUAN Qin, TIAN Fei-yu, YANG Yi, KEN Sheng-ye
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 178-183.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.039
    Abstract （392）      PDF （2172KB）（217）       Save
    A pyrolysis-gas chromatography/mass spectrometry （Py-GC/MS） method was developed to obtain the fingerprint of tobacco materials, the tobacco material ingredients of 6 domestic and foreign brands of heat-not-burn cigarettes and 3 domestic brands of traditional cigarettes were determined. The similarity value of Py-GC/MS fingerprint data of tobacco materials was calculated, and the cluster analysis method was used to evaluate the composition differences of tobacco materials. The results showed that a total of 32 common peaks were screened from HNB and TC fingerprints obtained by Py-GC/MS. Among which, the compounds with higher content of HNB than that of TC were glyceryl acetate and glycerol, while the compounds with higher content of TC were mainly the pyrolysis products of carbohydrate; The pyrolysis product fingerprints of HNB and TC had a low similarity value （0.304~0.703）, while the fingerprints between HNB and between TC had a high similarity value, which were 0.878~0.999 and 0.986~0.998, respectively; Through cluster pattern recognition, TC and HNB tobacco materials were completely divided into two categories, and HNB tobacco materials were further divided into two categories according to obvious differences in preparation process. This study results can provide a basis for the discrimination of different tobacco materials.
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    Determination method of lincomycin hydrochloride soluble powder content
    DONG Shu-xiang, WANG Jun, CHEN Xiang-dan, DING Yang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 184-186.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.040
    Abstract （562）      PDF （1787KB）（283）       Save
    To establish and verify a HPLC method for the determination of lincomycin hydrochloride soluble powder. The determination was performed on a C18 column （4.6 mm×150 mm,5 μm） at 214 nm with mobile phase of 0.02 mol/L diammonium hydrogen phosphate and acetonitrile （75∶25,V/V） at the flow rate of 1.0 mL/min. The column temperature was 30 ℃. The results showed that lincomycin showed a good linear relationship between the peak area and the concentration in the range of 0.1~4.0 mg/mL, the correlation coefficient was 0.999 7 （n=8）, the average recovery was 99.5%, RSD was 1.2%. The content of salt in the mobile phase was reduced, the pollution of salt solution to chromatographic column was reduced, the theoretical plate number of chromatographic peak was increased, and the mobile phase preparation was convenient and fast.
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    Analysis and evaluation of flower stalk nutritional quality of different double-low rapeseed varieties（Brassica napus L.）
    WANG Jian-ping, ZHANG Shu-fen, CHEN Ming-li, ZHU Jia-cheng, CAI Dong-fang, HE Jun-ping
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 187-190.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.041
    Abstract （395）      PDF （1753KB）（235）       Save
    In order to clarify the nutritional quality characteristics of flower stalk of different rapeseedvarieties（Brassica napus L.）, the nutritional quality of three double-low rapeseedvarieties is analyzed, and compared with that of a cruciferous vegetable Chinese cabbageunder the same cultivation conditions. Theresearch shows that three double-low rapeseedvarieties are different in nine quality indicators, i.e., vitamin B1, vitamin B2,vitamin C, protein, soluble sugar, crude fiber, calcium, iron and zinc. Specifically speaking, the coefficients of variation for content of vitamin B2, soluble sugar, zinc and calcium are greater than 10.000%,indicating that a big difference betweenthese varieties, while the coefficients of variation for content of vitamin C, vitamin B1, protein, crude fiber and iron are less than 10.000%, suggesting a small difference betweenthese varieties. There is an extremelysignificant positive correlation between zinc andvitamin C as well as zinc and protein content, with the correlation coefficients 0.857 8 and 0.866 4,respectively. The protein content is extremelysignificant positively correlated with vitamin B1 content and vitamin B2 content, with the respective correlation coefficients 0.865 3 and 0.838 7. Calcium content is negatively correlated with other nutritional quality indexes, without reaching a significant level. Compared with the Chinese cabbage,the comprehensive nutritional components of flower stalk in the double-low rapeseed are higher, wherein the vitamin C content and zinc content are more than 1.7 times of those in the Chinese cabbage,the iron content is more than 1.3 times of that in the Chinese cabbage. These suggest that flower stalk of the double-low rapeseed hasricher nutrition and higher edible value than the Chinese cabbage.
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    Structure optimization design and experiment of polyploid rice processing equipment
    WANG Rui, LI Jian-hong, XIAO Chong-ye, WANG Cheng, XIE Jing-bo, PANG Xiong-bin, SHU Hong-jie, PENG Zi-heng
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 191-193.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.042
    Abstract （366）      PDF （1598KB）（174）       Save
    The geometric characteristics and processing experiments of polyploid rice were carried out,because of the current situation that conventional rice huller and mill equipment could not meet the requirements of polyploid rice processing technology. The cot support, pressure between rolls, cot material of the existing huller, as well as the structure parameters of the existing rice mill, such as cot material, grain size of the cot, “gas storage” structure, rice knife material, etc were optimized.The experiment results showed that the rate of broken rice of rice huller and mill was significantly reduced after some structural improvement and parameter optimization, but it was still much higher than that of Early Indica Rice, which needed further structural optimization and research and development.
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    Adaptability test of no-tillage alf-tillages eeder of heat after ice in Xiangyang
    TANG Qing, LING Dong, ZHANG Dao-rong, SUN Hua-wei, LIU Xian-bin, TAN Yong-qiang, ZHOU Fang-ju, TANG Qing-yi, TANG San-ming, WEI Jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 194-196.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.043
    Abstract （364）      PDF （1595KB）（132）       Save
    Wheat-rice rotation is an important planting pattern in Xiangyang city. In order to solve the outstanding problems of low sowing, seedling quality and yield of rice-stubble wheat in this region, “zefeng 2BMF-12” no-tillage half-tillage seeder was introduced from Sichuan province to Xiangyang city through China agriculture research system in 2017. After continuous improvement of technology, the sowing quality and yield have been significantly improved. The experiment results showed that the seed exposing rate and ridge-breaking length of the no-tillage half-tillage strip planting method reduced by 79.3% and 83.3%, which compared with the conventional tillage sowing method during 2017 to 2018. Many demonstration pieces increased yield by 11.0%~13.2%, saving cost and increasing efficiency by 2 241.90 yuan per hectare on average.
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    Land surface emissivity dataset of desert underlying surface in arid area based on FTIR measurement
    LIU Kai-lu, WANG Yuan-hong, Ali Mamtimin, YANG Fan, LIU Yong-qiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 197-202.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.044
    Abstract （381）      PDF （2808KB）（191）       Save
    Land Surface Emissivity（LSE） is the most important parameter in Land Surface Models to simulate the long wave radiation and Land Surface Temperature（LST）. In order to solve the problem of lack measured data on the underlying surface of desert. Fourier transform thermal infrared spectrometer （FTIR） to observe the surface radiation spectrum of the wavelength in 8~14 μm thermal infrared atmospheric window was used. after cold and hot blackbody correction and the diffuse reflection gold board, we calculated emissivity spectrum of the wavelength range, by Using discretization algorithm to convert the surface emissivity spectral data into the surface emissivity values to establish the land surface emissivity dataset. Results showed that the 10 Observation points are evenly distributed across the Taklimakan desert （The distribution of observation points along oasis and oasis-desert Ecotone and central Taklimakan desert）, In arid region, the dataset can provide good verification data for retrieving LSE and LST from satellite data and support for the application of the bare soil in the land surface process.
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    Research on farmer’s local urbanization in the background of urban and rural economic and social dual structure
    HUANG Wen-jing
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 203-209.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.045
    Abstract （332）      PDF （7776KB）（72）       Save
    Under the background of urban and rural economic and social dual structure, China’s new urbanization strategic center has gradually transformed into population urbanization, and some rural areas have begun to implement local urbanization. By establishing the measurement system of farmers’ local urbanization, the development level of farmers’ local urbanization in Z province in 2010 and 2015 were measured, and the influencing factors analysis model of farmers’ local urbanization was constructed by using the geographically weighted regression method, and the effect differences of the impact of transportation location, public services and industrial economy on farmers’ local urbanization were discussed. The results showed that the local urbanization of farmers in Z province was mainly affected by the convenience of transportation and innovation ability in 2010, and it was mainly affected by road accessibility, medical care and innovation ability in 2015. The influence intensity of each factor was different in different areas of Z province, the northern area was mainly influenced by innovation ability, road accessibility and medical treatment, the eastern area was mainly influenced by innovation ability and transportation convenience, and the southern and western areas were mainly influenced by innovation ability. Finally, some relevant policy suggestions of promoting farmers’ local urbanization were put forward, in order to provide theoretical reference for the development of local urbanization of Chinese farmers.
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    Research on the operation mode planning of agricultural and rural maker space in Zhejiang province
    ZHANG Meng-xin, JI Hao, ZHOU Xiao-guang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 210-213.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.046
    Abstract （334）      PDF （1635KB）（349）       Save
    Empirical investigation about the present situation of Zhejiang province agricultural and rural maker space, analyzed its problems in the process of development of deep level reasons, proposed 8 classes and the running mode of agricultural and rural maker space, for all levels of management institutions and decision-making reference agricultural and rural maker space subject, in order to promoted the higher quality, higher efficiency of the service “three dimensional rural issues”, finally drive Zhejiang province comprehensive revitalization of the country.
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    Analysis on the input-output efficiency of leisure agriculture star enterprises in Chengde city
    ZHANG Bo-ran, BAI Xiang
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 214-219.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.047
    Abstract （343）      PDF （1699KB）（231）       Save
    A total of 24 leisure agriculture star enterprises in Chengde city that including picking park, leisure agriculture park and leisure agriculture zone were selected to calculate the input-output efficiency by using data envelopment analysis （DEA）. The results showed that the comprehensive efficiency ranking of the three leisure agriculture types was leisure agriculture zone>picking park>leisure agriculture park. This study also analyzed the reasons for the ineffectiveness of the operation efficiency DEA of four enterprises, and through the analysis of influencing factors of efficiency, put forward countermeasures and suggestions for the development of leisure agricultural enterprises in Chengde city.
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    Research on the development countermeasures of aquaculture industry in Tuanfeng county
    ZHANG Jing-ya, XU Shuang-qian
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 220-223.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.048
    Abstract （340）      PDF （1639KB）（298）       Save
    During the rapid development of the various industries, the economic growth model of the fishery was also changing. From the past pure pursuit of yield growth to the pursuit of quality and efficiency improvement, the transformation of the fishery was about to face major challenges. In this background, the development status and effectiveness of the aquaculture industry in Tuanfeng county were summarized, the issues arising in the development were put forward, and the corresponding sustainable development directions and strategies were put forward based on the existing resource analysis of Tuanfeng county.
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    Practice and thinking of beautiful rural construction：Taking Jingzhou city of Hubei province as an example
    GUO Xin-lin
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 224-227.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.049
    Abstract （419）      PDF （1736KB）（340）       Save
    Beautiful rural construction is a systematic project, involving rural politics, economy, culture, industry and other aspects, it is a powerful fulcrum in promoting rural economic and social development, and an inevitable requirement for the full realization of rural revitalization. Taking Jingzhou city of Hubei province as an example, the advantageous conditions and specific practice of developing beautiful villages were deeply expounded, the successful experience of advanced areas were analyzed, some corresponding development suggestions were put forward, in order to provide some theoretical reference for the development of agricultural and rural modernization in Jingzhou city.
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    Exploration and practice of model 1333 in the pilot project of new rural community construction in Baihe county
    HE Jia-li, LI Jing-jing, FENG Feng-shou
    HUBEI AGRICULTURAL SCIENCES    2021, 60 (24): 228-232.   DOI: 10.14088/j.cnki.issn0439-8114.2021.24.050
    Abstract （432）      PDF （1654KB）（215）       Save
    As a link in the process of urbanization, new rural community played an important role in promoting the construction of new rural community and promoting new urbanization. Baihe county, Shaanxi province, as a pilot unit of new rural community construction, had explored a unique “1333” model. By summarizing and sorting out the practice cases of the 1333 model of new rural community construction in Baihe county, the experience was summarized, in order to provide reference for the construction of new rural community in the relocation of poverty alleviation in inplaces in other areas.
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