Top Read Articles

Published in last 1 year |

In last 2 years |

In last 3 years |

All

Please wait a minute...


For Selected: Download Citations EndNote Reference Manager ProCite BibTeX RefWorks Toggle Thumbnails

Select

Changes of water and salt transport and soybean yield in saline-alkali soil under ridge cropping and plastic film mulching LIANG Xin-shu, ZHANG Kai, LIAN Xiao-juan, WANG Yan, XUE Zhu HUBEI AGRICULTURAL SCIENCES    2024, 63 (6): 1-4.   DOI: 10.14088/j.cnki.issn0439-8114.2024.06.001 Abstract （372）      PDF （1651KB）（90）       Knowledge map    Save The field experiment of summer sowing soybean [Glycine max （L.） Merr.] was conducted in the moderate saline-alkali soil area of Huanghua City, Hebei Province. Four treatments, namely flat sowing （control treatment）, flat sowing with plastic film mulching, ridging planting, and ridging planting with plastic film mulching, were set up to study the effects of ridge planting and film mulching on soil water and salt transport and soybean yield. The results showed that compared with the traditional flat sowing, flat sowing with plastic film mulching had no significant effect on soil water and salt transport and soybean yield, while ridge planting could significantly change soil water and salt distribution. When the rainfall began to decrease in the middle and late stages of soybean growth, in ridge planting and planting the furrow would produce the effect of superimposed rainwater harvesting, significantly increase the soil water content of 0~20 cm and 20~40 cm in the middle stages of soybean growth, slowe down the process of returning salt to the surface layer at the late growth stage, effectively reduced the salt content in the surface layer of soil, promote the growth and yield of soybean to a certain extent, and increase the yield by 27.2%. The effect of ridge planting with plastic film mulching was similar to that in ridge planting, and the effect of plastic film mulching was not significant in this experiment. The research showed that ridge planting technology could be used as one of the important agricultural measures for summer soybean planting in coastal saline-alkali soil. Reference | Related Articles | Metrics

Select

Research progress on the impact of microplastics on crops LI Wang-wang, ZHANG Le, CAI Hui, TIAN Zhi-quan, ZHANG Zhao-wei HUBEI AGRICULTURAL SCIENCES    2024, 63 (6): 53-59.   DOI: 10.14088/j.cnki.issn0439-8114.2024.06.008 Abstract （319）      PDF （1659KB）（110）       Knowledge map    Save Microplastics were plastic particles with a size of smaller than 5 millimetres, which were abundant and persistent in soil, posing a serious global environmental problem. Microplastics entered the crop body through the roots or leaves and affected different stages of crop growth. The pathways of microplastics entering the crop body and the detection methods of microplastics in crops of existing research were summarized, and the effects of different microplastics on crop germination rate, biomass, photosynthesis, oxidative stress system, nutrients, gene expression, etc. were explored. It was found that the influence of microplastics on crops varied with the characteristics of microplastics, crop species and environmental factors. Under certain experimental conditions, microplastics had no effect or a positive effect on crops. However, more studies had shown that microplastics could inhibit crop growth and ultimately affect crop yield. Moreover, microplastics could be enriched upward through food chains and affect human health. Reference | Related Articles | Metrics

Select

Breeding analysis of new lines of leafy vegetable sweet potato based on variation coefficient LI Bao-zheng, XIAO Bo, ZENG Xin-yu, XU Qian HUBEI AGRICULTURAL SCIENCES    2024, 63 (5): 1-5.   DOI: 10.14088/j.cnki.issn0439-8114.2024.05.001 Abstract （307）      PDF （2924KB）（106）       Knowledge map    Save In order to improve the breeding efficiency of new lines of leafy vegetable sweet potato and explore the influence of variation coefficient on the breeding of new lines of leafy vegetable sweet potato, seven leafy vegetable sweet potato lines were used as experimental materials to study the number and yield of shoot tips and their variation coefficients among different lines at different picking times, among different picking times of different lines, and among different replicates of different lines, and the correlation analysis of characters of shoot tips and variation coefficient was carried out. The results showed that the variation coefficient of shoot tip traits of new lines of leafy vegetable sweet potato was from large to small in the order of different picking times of different lines, different lines at different picking times, and different repetitions of different lines. The variation coefficient of the yield and number of shoot tips of high and stable yield lines was generally high, but the variation coefficient between repeats was low. The yield of shoot tips of lines 2019-1-15, 2018-2-76 and 2018-2-37 was higher than that of the control variety Fushu 7-6, and the yield difference reached a very significant level （P<0.01）. There was a significant positive correlation between the number of shoot tips and the yield of shoot tips （r=0.558 9, P<0.01）, and a significant positive correlation between variation coefficient of the number of shoot tips and variation coefficient of the yield of shoot tips （r=0.668 3, P<0.01）. It was concluded that the variation coefficient played an important role in the breeding of leafy vegetable sweet potato lines. In the process of breeding new lines of high and stable yield leafy vegetable sweet potato, the new lines with a large number of stem tips could be preferentially selected, and the effects of the yield of shoot tips and its variation coefficient could be comprehensively considered. 2019-1-15, 2018-2-76 and 2018-2-37 were new lines of leafy vegetable sweet potato with relatively high and stable yields. Reference | Related Articles | Metrics

Select

Regulation and practicability of trace elements in the priming of rape seeds DENG Feng-ling, LI Chun-sheng, GU Jian-wei HUBEI AGRICULTURAL SCIENCES    2024, 63 (6): 5-11.   DOI: 10.14088/j.cnki.issn0439-8114.2024.06.002 Abstract （292）      PDF （4087KB）（91）       Knowledge map    Save In order to improve the seed vigor of rape （Brassica napus L.） to enhance the stress resistance during seed germination and seedling stage, the effects of different trace element combinations were compared and analyzed by response surface analysis method to derive the element combination with the best effect on rape seed vigor improvement, and the influence of this combination on the growth, development and final yield of different rapeseed varieties was further verified. The results showed that Se （5.0 mg/L）, B（5.0 mg/L）, Zn（100.0 mg/L） and Mo （1.0 mg/L） had significant effects on seed germination. Response surface analysis showed that the optimal combination of trace elements was Se （6.7 mg/L）+B （7.5 mg/L）+Zn （82.3 mg/L）+Mo （4.6 mg/L）. Under this combination, the accumulation of soluble protein was significantly improved, and the stress resistance of seedlings was also significantly enhanced. The application experiments in different rape varieties proved that this combination could effectively increase the yield per plant （P<0.05）. Reference | Related Articles | Metrics

Select

Screening of sweet glutinous maize materials with low-Cd accumulation in grains LI Shu-jun, FU Zhong-jun, QI Zhi-yun, YUAN Liang HUBEI AGRICULTURAL SCIENCES    2024, 63 (7): 1-5.   DOI: 10.14088/j.cnki.issn0439-8114.2024.07.001 Abstract （290）      PDF （2480KB）（106）       Knowledge map    Save In order to screen the sweet glutinous maize （Zea mays L.） with low-Cd accumulation in grains under different soil cadmium concentrations stress, a pot experiment was conducted to study the difference of the Cd accumulation in grains by 45 sweet glutinous maize materials. 2 soil cadmium concentrations were set, namely C1 （1.3 mg/kg）, C2 （3.2 mg/kg）, and the soil without exogenous-Cd was taken as the control （CK）. The results showed that the Cd concentrations in sweet glutinous maize grains increased with the increase of Cd concentration in soil, and there were significant differences among the 45 sweet glutinous materials （P<0.01）. The enrichment coefficients of Cd in grains of all maize materials were less than 1 under different Cd concentrations. The cluster analysis showed that 15 materials exhibited grain low-Cd accumulation characteristics under different Cd concentrations, and the Cd contents in the grain of S18, S29, S30, S36 and S44 were lower than the National Food Safety Standard （0.1 mg/kg）. Thus, these 5 materials with low-Cd accumulation in grains could be used as parent materials, providing germplasm resources for the cultivation of Cd-safe varieties in sweet glutinous maize. Reference | Related Articles | Metrics

Select

Research on the current situation and problems of smart agriculture development in Hubei Province CHEN Ping-ting, SHEN Xiang-cheng, LUO Zhi-qing, MA Hai-rong, ZHENG Ming-xue, TU Jing, GUAN Bo HUBEI AGRICULTURAL SCIENCES    2024, 63 (8): 1-4.   DOI: 10.14088/j.cnki.issn0439-8114.2024.08.001 Abstract （289）      PDF （1497KB）（165）       Knowledge map    Save The current situation and issues of smart agriculture development in Hubei Province were analyzed, and the future paths and countermeasure suggestions were explored. The results indicated that Hubei Province had achieved phased results in areas such as the construction of smart agriculture policy systems, infrastructure, and intelligent equipment. However, challenges existed including inadequate planning and deployment of construction, uneven development of infrastructure, insufficient technology research and application, low utilization rate of smart agricultural machinery and equipment, lack of compound talents, and insufficient funding support. In response to the bottlenecks in the development of smart agriculture in Hubei Province, recommendations were proposed to strengthen the top-level design of policy systems, expand the scope of policy support, unify planning and deployment of infrastructure construction, establish a diverse investment pattern, improve the efficiency of innovative applications of intelligent equipment, enhance talent training and introduction mechanisms, and promote technology dissemination and application. Reference | Related Articles | Metrics

Select

The breeding and hybridizing maternal line of a new line of recessive white feather chicken SHEN Jie, WU Yan, PI Jin-song, PAN Ai-luan, HUANG Tao, LIANG Zhen-hua, ZHANG Hao, FU Ming, CHEN Ya-ru HUBEI AGRICULTURAL SCIENCES    2024, 63 (5): 143-146.   DOI: 10.14088/j.cnki.issn0439-8114.2024.05.025 Abstract （280）      PDF （1602KB）（49）       Knowledge map    Save A combination of individual selection and family selection methods was used, and the main selecting indicators were growth traits and egg production traits. Breeding of the basic group of recessive white feathered chickens was carried out, and a new line of recessive white feathered chickens was established. Then, the new line of recessive white feathered chickens was used as the maternal parent for secondary matching, and its performance was determined. The results showed that after four generations of breeding,the birth weight decreased by 2.9 g, the weight of roosters at 15 weeks decreased by 486.0 g, and the weight decreased by 562.9 g at 43 weeks; at 15 weeks of age, the weight of the hens decreased by 334.6 g, and at 43 weeks of age, the weight decreased by 404.5 g. The age of first egg was advanced by 5.2 days, and the number of eggs lay at 43 weeks increased by 6.7. The slaughter performance and body size of group J×W were better than those of group Y×W. After four generations of breeding, the egg production performance and body weight were significantly improved for the new line of recessive white feathered chicken. The two-line hybridization was good. Reference | Related Articles | Metrics

Select

Changes of soil physical and chemical properties and enzyme activity in wheat field under straw returning combined with chemical fertilizer LIU Dong-hai, MAO Qing-hua, DENG Hui, MEI Liang-xian, LUO Jie, QIAO Yan, ZHANG Zhi, HU Cheng HUBEI AGRICULTURAL SCIENCES    2024, 63 (5): 12-16.   DOI: 10.14088/j.cnki.issn0439-8114.2024.05.003 Abstract （277）      PDF （2029KB）（81）       Knowledge map    Save In order to explore the effect of combined application of chemical fertilizer on soil enzyme activity and its main driving factors in the wheat field under long-term straw returning, a four-year long-term positioning experiment in Guangshui was carried out. Six treatments were set up,including straw （S, the amount of 6 000 kg/hm2, the same as other treatments）, straw+100%N （S100N, 187.5 kg/hm2 N, the amount of other fertilization treatments was converted according to this amount）, straw+80%N （S80N）, straw+60%N （S60N）, straw+80%N + microbial inoculant （S80Nm, the amount of the straw decomposition microbial agent was 30 kg/hm2）, straw+60%N+microbial inoculant （S60Nm, the dosage of the microbial agent was the same as S80Nm）. Soil enzyme activity, soil physical and chemical properties and wheat yield were measured. The results showed that compared with S treatment, S100N and S80N significantly increased wheat yield by 182.82% and 179.55%（P<0.05）, respectively. The addition of the straw decomposition microbial agent had no significant effect on soil physical and chemical properties and wheat yield. Compared with S100N treatment, S80N increased the activities of soil phosphatase （Phos）, sulfatase （Sul）, β-glucosidase （βG）, β-xylosidase （βX）, α-glucosidase （αG）, acetylglucosaminidase （NAG） and leucine aminopeptidase （LAP）. Redundancy analysis （RDA） showed that soil organic matter and alkali hydrolyzable nitrogen were the main influencing factors of soil enzyme changes under the condition of straw returning. Therefore, from the point of view of reducing amount and increasing efficiency of fertilizer, S80N was a more suitable management measure to improve soil quality. Reference | Related Articles | Metrics

Select

Meteorological drought variation characteristics of Northern Xinjiang from 1961 to 2020 based on SPEI WEI Yan-hao, Gulinazi, Batur Bake, Palizhati Yusufu, Zulkeya Manap, Patiguli Maimaiti HUBEI AGRICULTURAL SCIENCES    2024, 63 (5): 37-44.   DOI: 10.14088/j.cnki.issn0439-8114.2024.05.007 Abstract （275）      PDF （12152KB）（75）       Knowledge map    Save Based on the daily meteorological data of 26 major meteorological stations in Northern Xinjiang from 1961 to 2020, the standardized precipitation evapotranspiration index （SPEI） was selected as the meteorological drought index, and Mann-Kendall mutation test and wavelet analysis were used to explore the variation characteristics of SPEI and the influence of different grades of meteorological drought in Northern Xinjiang in annual, spring and summer. The results showed that the actual mild drought situation in Northern Xinjiang was more suitable for identification by -1.0<SPEI≤0. Contrary to the trend of humidification at the annual scale, the Northern Xinjiang showed different degrees of aridification in spring and summer, and the influence range of extreme meteorological drought （severe drought and extreme drought） events in summer expanded significantly. There was a main change cycle of 1~4 years for SPEI at different scales from 1961 to 2020. The overall climate of Northern Xinjiang showed a significant humidification trend from 1993 to 2010 after the transformation of the 1980s, but the spring and summer climate showed a trend signal from wet to dry in 2014 and 1997, respectively. The drought in the summer of the study area began to gradually ease in 1988, but the drought began to gradually intensify after another mutation in 2008. Reference | Related Articles | Metrics

Select

The temporal and spatial distribution of the influence of climate on rice productivity in Anhui Province based on GTWR model CAO Hao-ran, MENG Mei HUBEI AGRICULTURAL SCIENCES    2024, 63 (6): 12-21.   DOI: 10.14088/j.cnki.issn0439-8114.2024.06.003 Abstract （272）      PDF （14996KB）（40）       Knowledge map    Save Taking temperature and precipitation as the two factors of climate change and Anhui Province as the study area, based on the data of temperature, precipitation and rice yield from 2001 to 2020, the mechanism of temperature and precipitation on rice yield was analyzed by geographically and temporally weighted regression（GTWR）. The results showed that from 2001 to 2020, the rice yield of each city in Anhui Province showed a continuous fluctuation in time, and there were also specific agglomeration phenomena in space. The temperature and precipitation were positively correlated with rice yield in the northwest of Anhui Province, and the positive correlation was the most significant in Bengbu City. Among all the cities in Anhui Province, the rice yield in Huainan City and Lu’an City was the most significantly affected by temperature and precipitation, while the rice yield in Huaibei City was relatively less affected by temperature and precipitation, indicating that other factors in this region had a deeper impact on rice yield. Reference | Related Articles | Metrics

Select

Changes of physiological indexes and expression of stress resistance related genes in ramie under drought stress ZHANG Ao-shen, XU Min, CHEN Lian, XIONG Wei, CHENG Chang-song, WANG Hong-wu HUBEI AGRICULTURAL SCIENCES    2024, 63 (5): 6-11.   DOI: 10.14088/j.cnki.issn0439-8114.2024.05.002 Abstract （270）      PDF （4707KB）（72）       Knowledge map    Save To study the effects of drought stress on physiological characteristics and stress resistance related genes of ramie （Boehmeria nivea L.）, the physiological indexes, stress resistance related gene expression and agronomic traits of Huazhu No. 4 were measured by natural drought stress. The results showed that, compared with the control, the chlorophyll SPAD of ramie leaves decreased under drought stress, the relative conductivity, free proline content, malondialdehyde content and soluble sugar content of stem tip and leaves increased significantly （P<0.05）, the activities of superoxide dismutase （SOD）, catalase （CAT） and peroxidase （POD） increased, and the relative expression levels of stress-related genes BnP5CS1, BnWRKY1, BnACO1, Bn-α-amylase, BnAPX1, BnbZIP1, BnDREB19 and BnGR1 were increased. The relative expressions of BnP5CS1 and BnWRKY1 in leaves were increased 5.1 and 5.3 times compared with control. Compared with the control, the plant height, stem diameter, skin thickness, fresh aboveground weight and raw hemp weight per plant under drought stress were significantly decreased （P<0.05）, the stem diameter and skin thickness were decreased by 0.13 cm and 0.14 mm, respectively, and the fresh aboveground weight and raw hemp weight per plant were decreased by 52.05% and 39.53%, respectively. Reference | Related Articles | Metrics

Select

Research progress on biotransformation of selenium in tea LI Quan, CHEN Yi, LIU Li, ZHENG Wei, WANG Wen-ao, DONG Yu-jie, HAO Han-zhou HUBEI AGRICULTURAL SCIENCES    2024, 63 (7): 21-26.   DOI: 10.14088/j.cnki.issn0439-8114.2024.07.004 Abstract （264）      PDF （1611KB）（81）       Knowledge map    Save Increasing the selenium content in tea by biotransformation was of great significance for improving the quality and efficiency of Chinese tea industry and improving the “hidden hunger” of human beings for selenium. The existing literature was systematically combed from the aspects of the content and forms of selenium in soil and tea, the technical standards related to selenium, and the technology of biotransformation of selenium in tea. The artificial selenium enrichment methods of tea were summarized, including application of selenium fertilizer in soil , foliar spraying of selenium fertilizer, application of nano-selenium technology, application of microbial selenium enrichment, and transgenic selenium enrichment technology, etc. Finally, a preliminary prospect and reflection on the research in this field was made. In the future, it was necessary to use quantitative trait loci and other research methods to explore the absorption, transformation and accumulation mechanism of selenium in tea trees, explore new methods for preparing nano-selenium, and strengthen the standardization system construction of selenium-enriched tea. Reference | Related Articles | Metrics

Select

Quality difference of large-leaf variety white tea by light quality withering treatments in Yunnan Province ZHANG Yan-mei, TONG Jia-yin, HAO Lian-qi, YANG Fang-hui, ZHAO Bi, TANG Hai-kun, MA Yu-qing, XIA Li-fei, SUN Yun-nan, PU Shao-liu HUBEI AGRICULTURAL SCIENCES    2024, 63 (6): 99-104.   DOI: 10.14088/j.cnki.issn0439-8114.2024.06.015 Abstract （263）      PDF （1637KB）（91）       Knowledge map    Save In order to find out the best processing technology, the fresh leaves of Yunnan large-leaf variety were treated with different light quality, which provided a theoretical basis for further study of large-leaf variety white tea. The long-leaf pekoe of Yunnan large-leaf variety was used as the experimental object, two kinds of light quality were used for withering, the sensory quality, biochemical components and aroma components of the samples were detected and analyzed. The results showed that after two kinds of light quality treatment, the total score of sensory evaluation was higher than that of CK（conventional indoor natural sunlight withering）, and the comprehensive score from high to low was yellow light, blue light and CK, and the scores were 92.5, 91.8 and 89.2, respectively. The sensory quality of tea treated with two kinds of light was better than CK, and yellow light was better than blue light. The quality of white tea treated with two light qualities was significantly improved. Yellow light withering significantly increased the content of amino acids, caffeine and soluble sugars of large-leaf white tea in Yunnan （P<0.05）, followed by blue light and the lowest was the control （CK）. Compared with the control, two kinds of light quality treatment increased the content of water extract, and the increase of blue light was greater than that of yellow light;the polyphenol content of tea was reduced by two kinds of light quality treatment, and the reduction of blue light was greater than that of yellow light. A total of 93 aroma components were identified in the test tea samples, including 58 CK, 57 blue light withering and 55 yellow light withering. The content of tea-like linalool with yellow light withering, blue light withering and conventional indoor natural sunlight withering was 65.43%, 62.70% and 61.36%, respectively. The withering with different light quality was beneficial to the improvement of the quality of white tea, and yellow light was better than blue light. Because the aroma and taste of the processed tea were greatly improved, it was one of the methods to process high quality white tea. Reference | Related Articles | Metrics

Select

Physiological mechanisms of exogenous gibberellin treatment affecting the seed germination process of Fraxinus hupehensis Chiú. Shang et Su ZHAO Yi-ning, LIU Yan-hong, ZHENG Peng-li, ZHOU Ming-qin HUBEI AGRICULTURAL SCIENCES    2024, 63 (5): 70-76.   DOI: 10.14088/j.cnki.issn0439-8114.2024.05.013 Abstract （261）      PDF （4693KB）（197）       Knowledge map    Save The seeds of Fraxinus hupehensis stored at normal temperature for 2 years were taken as the research object. Before the experiment, the radicle end covering tissue was removed to expose the radicle. Taking water as a control, after soaking the seeds with 150 mg/L gibberellin solution for 24 h, the physiological and biochemical indexes and the contents of endogenous hormones in seeds during germination were measured. The results showed that gibberellin treatment could enhance seed germination rate, with a germination rate of 24.67% after gibberellin treatment compared to 16.67% in the control group. During germination, gibberellin-treated seeds exhibited a trend of initially increasing and then decreasing in soluble sugar content. Soluble protein content showed a decreasing trend but remained significantly higher than the control group at all stages. Superoxide dismutase （SOD）, peroxidase （POD）, and catalase （CAT） activities showed an increasing trend on the whole. The content of endogenous jasmonic acid methyl ester （JA-Me） in seeds after gibberellin treatment was significantly lower than that in the control, which favored an increase in endogenous gibberellin （GA3） and zeatin riboside （ZR） content. The ratios of gibberellin to abscisic acid （GA3/ABA） and zeatin riboside to abscisic acid （ZR/ABA） were significantly positively correlated with the ratio of indole-3-acetic acid to abscisic acid （IAA/ABA） at 0.01 and 0.001 levels, respectively, and GA3/ABA was significantly positively correlated with ZR/ABA at 0.001 level. Gibberellin immersion significantly increased the germination rate of Fraxinus hupehensis seeds, and the seeds treated with gibberellin exhibited a stronger balance of protective enzyme activity system, delayed membrane damage, and the resistance was better. The lower levels of endogenous JA-Me and the higher levels of endogenous GA3 and ZR favored the initiation of seed germination and the release of dormancy. Reference | Related Articles | Metrics

Select

High-temperature stage process of aerobic fermentation of agricultural waste FENG Liang, SHI Ai-ping HUBEI AGRICULTURAL SCIENCES    2024, 63 (5): 17-21.   DOI: 10.14088/j.cnki.issn0439-8114.2024.05.004 Abstract （260）      PDF （2829KB）（68）       Knowledge map    Save In order to optimize the process of the high temperature stage of aerobic fermentation, chicken manure and corn straw were used as raw materials. The single factor test and orthogonal test were carried out by selecting the temperature, time and dosage of the microbial agent in the high temperature stage as the process parameters. The pH, conductivity（EC）, the ratio of carbon to nitrogen（C/N） and seed germination index were used as evaluation indexes to study the high temperature stage process of high temperature aerobic fermentation of agricultural waste. The results showed that the optimum technological conditions in the high temperature stage were as follows： the addition amount of the microbial agent was 20 g/kg, the temperature was 75 ℃, and the fermentation time was 12 h. Reference | Related Articles | Metrics

Select

Evaluation of soil erosion and analysis of driving factors in the Ganguyi Watershed of Yanhe River from 1980 to 2020 CHEN Fang-lei, WANG Ji-ping, CHENG Fu, XIE Hai-yan HUBEI AGRICULTURAL SCIENCES    2024, 63 (6): 27-34.   DOI: 10.14088/j.cnki.issn0439-8114.2024.06.005 Abstract （260）      PDF （9890KB）（24）       Knowledge map    Save The daily rainfall data, DEM data, soil type data, sediment content data and multi period NDVI data were used to study the soil erosion dynamics and driving factors in the Ganguyi Watershed of the Yanhe River in the past 41 years before and after the implementation of the national ecological rehabilitation project of returning farmland to forest and grassland based on the Revised General Soil Loss Equation （RUSLE） and geographic detectors. The results showed that, from 1980 to 2020, the overall soil erosion intensity in the study area showed a fluctuating trend, with an average erosion modulus of 6 746.30 t/（km2·a）, 5 740.28 t/（km2·a）, 6 389.56 t/（km2·a）, 5 450.46 t/（km2·a） and 5 480.56 t/（km2·a） in 1980, 1990, 2000, 2010 and 2020, respectively. From 1980 to 2000, the overall erosion intensity in the study area gradually increased, and the proportion of erosion areas at the strong level and above gradually increased, which was characterized by “erosion increase and upgrading”. After 2000, the intensity of soil erosion in the study area began to decrease, and the area of erosion at the strong level and above decreased, which was characterized by “erosion reduction and degradation”. The intensity of soil erosion in the study area increased with the increase of slope. At the same time, it was found that 1 000~1 200 m and 1 200~1 400 m were the main elevation zones for erosion occurrence in the study area. The explanatory power of land use type factors was most prominent in 2020, indicating that the implementation of the project of returning farmland to forests and grasslands had a significant effect. The conversion of large areas of farmland to forests and grasslands was the main reason for the decrease in soil erosion intensity in the research area after 2000. The synergistic effect of various influencing factors on soil erosion was significantly stronger than that of a single factor. Reference | Related Articles | Metrics

Select

Research on influencing factors and potential of vegetable export trade between China and RCEP countries WANG Min, HUANG Shu-wen, YANG Chu-yi, JI Meng HUBEI AGRICULTURAL SCIENCES    2024, 63 (7): 219-223.   DOI: 10.14088/j.cnki.issn0439-8114.2024.07.035 Abstract （260）      PDF （1616KB）（337）       Knowledge map    Save Based on the background of RCEP implementation, the gravity model was constructed according to the panel data of vegetable export trade between China and RCEP countries from 2010 to 2020, the influencing factors of vegetable export trade between China and 14 member countries were empirically analyzed, and the trade potential was calculated. The results showed that the per capita GDP of both sides, population of the member countries, cultivated land area of China and the entry of APEC could significantly promote China's vegetable export; the trade potential value between China and RCEP countries was generally high, and they were all potentially pioneering; during the sample period, the trade potential of Laos and Myanmar fluctuated greatly and had great room for expansion. On this basis, some countermeasures and suggestions were put forward from four aspects of grasping the development opportunity of RCEP, strengthening the cooperation between governments, paying full attention to the heterogeneity between countries and increasing the support for vegetable technology research and development. Reference | Related Articles | Metrics

Select

Effects of foliar spraying calcium on blueberry fruit quality during short-term storage YIN Zong-yan, ZHANG Xian-cong, LIAO Ling, LU Wen, ZHAO Zi-ming, WANG Xun HUBEI AGRICULTURAL SCIENCES    2024, 63 (6): 111-115.   DOI: 10.14088/j.cnki.issn0439-8114.2024.06.017 Abstract （255）      PDF （2181KB）（74）       Knowledge map    Save In order to enhance the quality of blueberry fruit and extend the postharvest storage period, the blueberry variety O’Neill was utilized as the experimental material to investigate the impact of different concentrations of inorganic calcium and organic chelated calcium on the storage quality of blueberry fruit. And the type, concentration, and timing for applying calcium fertilizer on the surface of blueberry leaves were determined. The results showed that the fruit had the highest hardness and the highest soluble solid content when it was ripe by foliar spraying calcium at the young fruit stage + color turning stage + maturity stage. Compared with the control （spraying water）, different calcium treatments increased fruit weight per fruit and reduced the postharvest weight loss ratio. After 8 days of postharvest storage, the hardness of blueberry fruits treated with 0.9 g/L EDTA chelated calcium was significantly higher than that of control, and the anthocyanin content of blueberry fruits treated with 0.3 g/L amino acid chelated calcium was the highest. Foliar spraying calcium at the young fruit stage, color turning stage and maturity stage was beneficial to the storage of blueberries. Organic chelated calcium was better than inorganic calcium in improving the internal quality of blueberries. Reference | Related Articles | Metrics

Select

Effects of different exogenous selenium on selenium accumulation and fruit quality of tomato KANG Yu, TIAN Teng-fei, WEN Xiao-long, LONG Lan, YIN Hong-qing HUBEI AGRICULTURAL SCIENCES    2024, 63 (5): 65-69.   DOI: 10.14088/j.cnki.issn0439-8114.2024.05.012 Abstract （254）      PDF （1948KB）（59）       Knowledge map    Save Using tomato as the experimental material, a pot experiment was conducted to explore the effects of two exogenous selenium fertilizers sodium selenite （Na2SeO3） and sodium selenate （Na2SeO4） on agronomic characters of tomato, selenium content and selenium accumulation of tomato plants and fruit quality. The results showed that exogenous selenium application could promote the growth and development of tomato plants, and sodium selenate application could significantly increase tomato yield. Sodium selenate significantly increased selenium content in roots, stems, leaves and fruits of tomato plants, and the selenium absorption capacity of leaves was the strongest in this treatment, while that of roots was the strongest in sodium selenite treatment. The addition of exogenous selenium significantly enhanced the ability of tomato plants to enrich selenium and transfer selenium from root to ground, increased the content of vitamin C and soluble sugar in tomato fruits, and significantly improved the quality of tomato fruits, and the effects of sodium selenate were superior to sodium selenite. Reference | Related Articles | Metrics

Select

Evaluation of heat resistance of 13 tree peony varieties based on semi-lethal high temperature YU Xin, CHEN Fa-zhi, LIU Zhong, CHEN Zhi-wei, JI Xiao-mei, LI Xiu-li HUBEI AGRICULTURAL SCIENCES    2024, 63 (6): 116-120.   DOI: 10.14088/j.cnki.issn0439-8114.2024.06.018 Abstract （253）      PDF （2319KB）（142）       Knowledge map    Save In order to evaluate the heat resistance of tree peony（Paeonia suffruticosa Andr.） germplasm resources, 13 representative tree peony cultivars were selected as experimental materials, and the semi-lethal high temperature （LT50） was studied by the conductivity method and Logistic equation. The results showed that with the treating temperatures higher step-by-step, the cell damage rate of 13 tree peony cultivars showed a typical S curve increasing trend, and the significance test conformed to the Logistic equation. The LT50 of 13 tree peony cultivars ranged from 51.31 ℃ to 59.73 ℃, among which B24 had the highest LT50 of 59.73 ℃, while Haihuang had the lowest LT50 of 51.31 ℃. Based on sequential clustering method, 13 tree peony cultivars could be divided into 3 groups： B24, Taipinghong, B10, Fengdanhe and Fengdanbai belonged to the heat resistant type, with an average LT50 of 57.70 ℃; Xiangyu, Lianhe, Wuxingyu, Daojin and Dianjianghong belonged to the moderate heat resistant type, with an average LT50 of 56.32 ℃; ZB1, Pomozi and Haihuang belonged to the heat sensitive type, with an average LT50 of 53.32 ℃. Reference | Related Articles | Metrics