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New records of ferns in fourteen regions of China XIE Min, ZHENG Yi-peng, LU Wen-hao, FENG Xu HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 87-93.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.016 Abstract （660）      PDF （1631KB）（922）       Knowledge map    Save 208 new species of ferns were recorded from 2019 to 2024 in fourteen regions of China, including Fujian, Jiangxi, Shaanxi, Shanghai, Anhui, and Guangdong, in order to provide a new reference for the development and utilization of ferns. Reference | Related Articles | Metrics

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The biological characteristics of Lasioderma serricorne and Ephestia elutella and the differences formed by generational overlap ZHAO Fan, HUANG Yan-jiang, LI Yang, BAO Heng-yan, TIAN Bin, MOU Yi HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 46-51.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.008 Abstract （540）      PDF （6124KB）（436）       Knowledge map    Save Taking the individual development process of Lasioderma serricorne and Ephestia elutella as the starting point, a mathematical model of generational overlap was established based on quantitative data of different stages and durations of Lasioderma serricorne and Ephestia elutella. The main biological characteristics and generational overlap of Lasioderma serricorne and Ephestia elutella were analyzed. The results showed that the width of the larval head capsule of Lasioderma serricorne changed significantly on days 8, 12, 15, 18, and 23, while the width of the larval head capsule of Ephestia elutella changed significantly on days 5, 10, 14, and 23. At 8~25 days of cultivation, the instar of Lasioderma serricorne larvae was more concentrated;when cultured for 3~5 days, the instar of Ephestia elutella larvae was more concentrated, and when cultured for 10~33 days, Ephestia elutella larvae were distributed in all 3~4 instar stages.Under the same temperature and feed conditions, the emergence time of Lasioderma serricorne adults with different population densities was more concentrated, ranging from 5 to 7 days, while the emergence time of Ephestia elutella adults with different population densities was more dispersed. When the population density was between 360 and 400 indiriduals, the emergence time of Lasioderma serricorne and Ephestia elutella adults increased compared to other groups and the peak emergence time was delayed. The egg count and egg coverage period of the first four generations of Lasioderma serricorne had increased, but there was no overlap. Egg overlap occurred from the fifth generation onwards; Ephestia elutella eggs exhibited egg overlap starting from the second generation. In the comprehensive prevention and control of Lasioderma serricorne and Ephestia elutella, it was important to focus on blocking the interaction and infiltration between different populations of Ephestia elutella, in order to avoid increasing the difficulty of prevention and control due to mixed insect ages or staggered insect states. Reference | Related Articles | Metrics

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Breeding of a new mid-season indica hybrid rice combination Zhiliangyou Huangzhansimiao with high heat tolerance CAI Hai-ya, DONG Hua-lin, XU Yao-ting, YOU Ai-qing, JIN Wei-bing, HE Yong-gang, XU Yan-hao, SUN Xiao-qiong, ZHONG Yu-ping, FANG Jian-jun, JIAO Chun-hai, WU Bo HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 1-4.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.001 Abstract （533）      PDF （1659KB）（524）       Knowledge map    Save Zhiliangyou Huangzhansimiao, a new mid-season indica hybrid rice cultivar with high yield and heat tolerance, was cultivated by Institute of Food Crops, Hubei Academy of Agricultural Sciences and Anhui Wuxing Agricultural Science and Technology Co., Ltd. This cultivar was combined by the sterile line EK1S and the restorer line Huangzhansimiao. It showed high and stable yield, moderate plant type, lodging resistance and high heat tolerance in the field. In 2022, the combination was approved by the National Crop Variety Approval Committee. Reference | Related Articles | Metrics

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Intrinsic mechanisms and empirical testing of empowering agricultural economic resilience through digital rural construction SHI Peng-yi HUBEI AGRICULTURAL SCIENCES    2025, 64 (2): 220-228.   DOI: 10.14088/j.cnki.issn0439-8114.2025.02.035 Abstract （436）      PDF （1625KB）（49）       Knowledge map    Save Based on provincial-level panel data in China from 2013 to 2022, the fixed effects model, intermediary effects model, and threshold effects model were used to empirically test the impact and mechanism of digital rural construction on agricultural economic resilience. The results showed that the digital rural construction had a positive promoting effect on the resilience of agricultural economy, which still held true after robustness testing. The digital rural construction enhanced the resilience of agricultural economy by promoting agricultural infrastructure construction and regional economic development. Compared to the main grain producing areas and high resilience areas, the effect of digital rural construction on empowering agricultural economic resilience in non-grain producing areas and low resilience areas was relatively weak. Based on this, it was recommended to continue promoting the construction of digital rural areas, leverage the driving role of agricultural infrastructure and regional economic development, and take multiple measures to enhance the resilience of agricultural economy, in order to lay the foundation for building China into an agricultural powerhouse. Reference | Related Articles | Metrics

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Research on rapeseed field weed recognition based on improved RT-DETR model ZHANG Lei, LENG Xin, CHEN Jia-kai, LI Zong-xuan HUBEI AGRICULTURAL SCIENCES    2025, 64 (8): 1-9.   DOI: 10.14088/j.cnki.issn0439-8114.2025.08.001 Abstract （411）      PDF （10392KB）（75）       Knowledge map    Save Four typical weeds Xanthium strumarium,Setaria viridis, Chenopodium album,Ambrosia artemisiifoliain in rapeseed fields were taken as the research objects. Key challenges in weed detection, including small seedling targets, weak features of withered weeds, and difficulty in identifying highly overlapping areas, were addressed by proposing an improved detection method based on the RT-DETR (Region transformer DETR) model. The asymptotic feature pyramid network (AFPN) replaced the original cross-scale context fusion module (CCFM) in the RT-DETR model, effectively resolving the imbalanced feature distribution issue in withered weeds caused by blurred texture and feature sparsity. The SPD-Conv module was introduced into the backbone network to enhance the feature representation capability for small-target weeds. The convolutional block attention module (CBAM) was integrated at the end of the backbone network, effectively mitigating feature information loss under low-resolution targets and occlusion conditions. Systematic ablation experiments and comparative experiments verified that the improved RT-DETR+AFPN+SPD-Conv+CBAM (RW-DETR) model demonstrated significant advantages in both detection accuracy and robustness. The RW-DETR model achieved recognition precision and mean average precision of 85.2% and 82.5%, respectively, for weeds in rapeseed fields, significantly outperforming the RT-DETR model, Faster R-CNN model, SSD model, YOLOv5m model, and YOLOv8m model. While maintaining real-time detection performance, the RW-DETR model significantly improved weed recognition effectiveness in complex scenes, meeting the accuracy and efficiency requirements of modern agriculture for weed detection systems. Reference | Related Articles | Metrics

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Correlation between water requirement of winter wheat and meteorological factors in Shanxi Province HOU Yang HUBEI AGRICULTURAL SCIENCES    2025, 64 (2): 1-5.   DOI: 10.14088/j.cnki.issn0439-8114.2025.02.001 Abstract （362）      PDF （3776KB）（93）       Knowledge map    Save To provide scientific guidance for winter wheat irrigation, the inter-annual variations of water requirement, water deficit and water profit and loss index of winter wheat in Shanxi Province were comprehensively analyzed, and the correlation between water requirement of winter wheat and various meteorological factors in Shanxi Province was analyzed by the improved grey correlation analysis method. The results showed that from 1973 to 2020, the water requirement for winter wheat in Shanxi Province was 460.25~600.76 mm, the water deficit was 247.59~493.41 mm, and the water profit and loss index was 0.53~0.89. The maximum air temperature, water surface evaporation and sunshine duration ranked the top three in the correlation with winter wheat water demand in the central region, with correlation degrees of 0.907, 0.874 and 0.861, respectively. The maximum air temperature, sunshine duration and wind speed ranked the top three in the correlation with winter wheat water demand in the southern region, with correlation degrees of 0.889, 0.873 and 0.864, respectively. The water surface evaporation, precipitation and sunshine duration ranked the top three in the correlation with winter wheat water demand across the entire region, with correlation degrees of 0.892, 0.887 and 0.851, respectively. These three factors had the most significant impact on the water demand of winter wheat. Reference | Related Articles | Metrics

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The performance of growth, development and quality traits of vegetable sweet potato under different shading degrees LEI Jian, ZHANG Yue-hua, HUANG Lan, ZHANG Heng, WEI Wei, YIN An-le, ZHANG Yan, TONG Zheng, YUAN Man, REN Hao-ran, LI Qiang, OUYANG Xiu-feng, LIU Huan, BAI Ying-guang, JIN Xiao-jie, WANG Lian-jun, CHAI Sha-sha, YANG Xin-sun HUBEI AGRICULTURAL SCIENCES    2025, 64 (5): 1-4.   DOI: 10.14088/j.cnki.issn0439-8114.2025.05.001 Abstract （334）      PDF （1581KB）（124）       Knowledge map    Save Taking vegetable sweet potato varieties (Ipomoea batatas L.) Fushu 18, Eshu 10 and Huangjinye as test materials, the effects of different shading degrees on yield, physiological indexes and photosynthetic parameters of vegetable sweet potato were investigated by simulating photovoltaic agricultural conditions with 0(CK), 30%, 50% and 70% shading treatments on the twentieth day after planting. The results showed that, with the increase of shading degree, the shoot tip yield of three kinds of vegetable sweet potato decreased significantly, and shading had a significant negative impact on the yield of vegetable sweet potato. Among them, Eshu 10 had a obvious yield advantage. Shading had a significant effect on the photosynthetic response and chlorophyll content in vegetable sweet potatoes. With the increase of shading degree, the total chlorophyll content of the three kinds of vegetable potatoes increased and the net photosynthetic rate decreased. Among them, Eshu 10 had a higher photosynthetic rate and total chlorophyll content under severe shading, indicating that Eshu 10 had stronger adaptability to shading environment. In general, moderate shading was beneficial to the increase of sucrose content in vegetable sweet potato, while severe shading affected the accumulation of sucrose, and shading was not conducive to the accumulation of soluble sugar and starch. Shading at 30% and 50% was beneficial to the accumulation of total phenolics, total flavonoids and chlorogenic acid in vegetable sweet potato, and Eshu 10 obtained higher phenolic content under moderate shading. The results of this study indicated that Eshu 10 was more suitable for planting under the agricultural photovoltaic complementary mode. Reference | Related Articles | Metrics

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Spatial-temporal evolution analysis of land use conflict in Chengdu metropolitan area based on landscape ecological index LI Ming-xia, LIU Ping-hui HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 8-16.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.003 Abstract （326）      PDF （14481KB）（40）       Knowledge map    Save Taking the Chengdu metropolitan area as the research area, based on the landscape ecological index, the land use conflict measurement model was constructed from three aspects of spatial complexity, spatial vulnerability and spatial stability. Four grades were identified as stable and controllable, basically controllable, basically out of control and seriously out of control, and their evolution characteristics were quantitatively analyzed. The results showed that from 2000 to 2023, the area of land use types in Chengdu metropolitan area was characterized by “four types of land use rising and two types of land use decreasing”. The area of cultivated land and water area was reduced as a whole, and the area of construction land, forest land, grassland and unused land was increased to varying degrees. The land use conflict index increased first and then decreased, and the land use coordination was relatively stable. The spatial distribution of land use conflicts was uneven, which was characterized by low in the west and high in the middle and east. The high-value areas of the land use conflict index were distributed in the urban center, and the low-value areas were mainly distributed in the western mountainous areas. There were some differences in the conflict levels of different land use types. The conflict level of forest and grassland was low and the change range was small; the conflict level of construction land was high, but there was a tendency to ease. The level of land use conflict had a positive correlation and the aggregation effect was obvious. The overall distribution pattern of LISA agglomeration was high in the middle and low in the west. Reference | Related Articles | Metrics

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Analysis and forecast of coupling coordinated development of population-land-economy urbanization in Changji Prefecture CHAI Jing, SU Xiang-hui, MA Ying, YANG Kai-dong HUBEI AGRICULTURAL SCIENCES    2025, 64 (2): 51-57.   DOI: 10.14088/j.cnki.issn0439-8114.2025.02.008 Abstract （322）      PDF （1634KB）（71）       Knowledge map    Save Based on the panel data from 2012 to 2021, the comprehensive evaluation index system of population-land-economy urbanization system was constructed. The entropy method, coupling coordination model and GM（1,1） grey model were selected to calculate and analyze the comprehensive development level and coupling coordination development of population-land-economy urbanization, and predict the coupling coordination of population-land-economy urbanization from 2022 to 2024. The results showed that the development level of population-land-economy urbanization and its subsystems showed a fluctuating upward trend from 2012 to 2021, among which the development speed of land urbanization subsystem was the fastest. The coupling level of population-land-economy urbanization system was high, and the coupling degree was 0.816~0.964 in the research period. The coupling coordinated development level of population-land-economy urbanization was also developed from the primary coordination in 2012 to the good coordination in 2021. From 2022 to 2024, the coupling coordination degree of population-land-economy urbanization system would continue to rise, and it would be expected to achieve high-quality coordination in 2023. Although the coupling coordination of population-land-economy urbanization in Changji Prefecture was well, when it would come to higher-quality development, the existing problems such as inefficient land use, insufficient development power, industrial imbalance, and insufficient attention to human urbanization still existed. It was suggested to promote the reform of land and household registration system, improve the investment and financing system for new urbanization construction, upgrade the industrial structure, build a complementary system of urbanization functions, and strengthen the coordinated development of the system. Reference | Related Articles | Metrics

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Construction of evaluation system and classification of unstable farmland in arid area of Bachu County SUN Ting-ting, YANG Zhi-ying, LUO Hao, JIA Hong-tao, SHAN Na-na HUBEI AGRICULTURAL SCIENCES    2025, 64 (2): 27-36.   DOI: 10.14088/j.cnki.issn0439-8114.2025.02.005 Abstract （317）      PDF （6479KB）（157）       Knowledge map    Save Bachu County was taken as the case area. Based on relevant criteria such as cultivated land reserve resource evaluation, quality evaluation of newly added cultivated land and high standard farmland, an index system of unstable cultivated land evaluation was constructed by following the principles of comprehensiveness, hierarchy, representativeness and accessibility. The types of unstable cultivated land were divided by spatial overlay analysis of ArcGIS10.8 software. The results showed that the unstable cultivated land in Bachu County was mainly affected by 13 factors in three aspects of ecological security, production suitability and socio-economic feasibility. The unstable cultivated land in Bachu County was 34 827.64 hm2, accounting for 24.15% of the cultivated land area, which was concentrated in the southwest and central part of Bachu County. Unstable cultivated land in Bachu County was divided into production unstable type, ecological unstable type, social and economic unstable type and mixed unstable type, accounting for 1.50%, 81.70%, 14.82% and 1.98% of the total area of unstable cultivated land, respectively. Bachu County had a large area of unstable cultivated land, which was mainly affected by salinization and desertification. The stability of cultivated land could be enhanced by improving irrigation and drainage system and farmland infrastructure, and strengthening the construction of shelter forest and high standard farmland. Reference | Related Articles | Metrics

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The neural network analysis of natural runoff variation patterns and their influencing mechanisms in Hubei Province based on watershed differences SHAO Qian, WEI Hong HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 31-39.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.006 Abstract （313）      PDF （8523KB）（22）       Knowledge map    Save Based on natural runoff data of Hubei Province, combined with the data of meteorology, satellite remote sensing, water conservancy projects, land use, socio-economy, etc, neural network models such as Multi-Layer Perceptrons （MLP）, Long and Short Term Memory Networks （LSTM） and Convolutional Neural Networks （CNN） were constructed to predict and analyze natural runoff in the Yangtze River Basin, Han River Basin and Qing River Basin. The results indicated that the constructed neural network models had a good prediction effect and could effectively capture the patterns and characteristics of natural runoff changes. The results of sensitivity analysis and importance ranking revealed that there were significant differences in the impact weights of climate change and human activities on runoff variations, and the differences between regions were obvious. Climate change was identified as the primary influencing factor, among its components, precipitation had the highest influence, followed by temperature, while evaporation had the least. Human activities were identified as secondary influencing factors, among its components, water conservancy projects had the highest weight, followed by land use. There were some differences in the weights of climate change and human activities in different basins, among which the weight of Hanjiang River Basin was the highest and the weight of Qing River Basin was the lowest. Predictions for natural runoff trends from 2023 to 2042 indicated a declining trend, with corresponding changes in the weights of influencing factors. Reference | Related Articles | Metrics

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Effect of biochar particle size on photocatalytic degradation of endogenous polycyclic aromatic hydrocarbons GE Yun-yu, SHEN Xiu-li, MENG Hai-bo, FENG Jing, CONG Hong-bin, WEN Feng-rui, ZHANG Wen-jing HUBEI AGRICULTURAL SCIENCES    2025, 64 (2): 13-20.   DOI: 10.14088/j.cnki.issn0439-8114.2025.02.003 Abstract （312）      PDF （5255KB）（706）       Knowledge map    Save To explore and optimize the technology and process of photolytic removal of endogenous polycyclic aromatic hydrocarbons（PAHs） in biochar, this study focused on corn stover biochar. Biochar with different particle sizes （>1.0 mm, 0.5~1.0 mm, 0.001~0.5 mm） was prepared, and TiO2-photocatalytic degradation experiments were conducted to systematically analyze the characteristics of the biochar and the efficacy of degrading and removing endogenous PAHs with different particle sizes. The results showed that the endogenous PAHs content in corn stover biochar was 76.1 mg/kg, predominantly comprising 4-ring and 5-ring PAHs, significantly exceeding the limit value for basic biochar PAHs （20 mg/kg） set by the International Biochar Initiative （IBI）. TiO2-photocatalysis could significantly reduce the content of endogenous PAHs in biochar. After photocatalytic degradation, the endogenous PAHs content in the three particle sizes of biochar ranged from 3.3 to 14.9 mg/kg, with degradation rates for total PAHs ranging from 55.2% to 95.6%. The maximum degradation rate for high-ring PAHs reached 97.1%, while low-ring PAHs reached 62.0%. The 0.001~0.5 mm particle size biochar exhibited the highest degradation rate of 95.6% after 40 minutes of light exposure, and the toxicity equivalent value decreased from 9.096 mg/kg to 0.088 mg/kg, significantly below the thresholds set by the European Biochar Certification（4 mg/kg） and the International Biochar Initiative（6 mg/kg）. The study demonstrated that TiO2-photocatalysis effectively degraded endogenous PAHs in biochar of different particle sizes, ensuring the safety of biochar and its products for application in agricultural fields. Reference | Related Articles | Metrics

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Screening and control effect of highly effective antagonistic bacteria against cotton verticillium wilt ZHANG De-zheng, NIE Tai-li, YANG Jun, KE Xing-sheng, YAN De-peng, NIE Zhang-qing, ZHONG Min HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 67-72.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.012 Abstract （307）      PDF （5632KB）（446）       Knowledge map    Save Using Verticillium dahliae Kleb as indicator bacteria, the biocontrol strains with high activity were screened by confronation culture and metabolite inhibition test. The preventive effect of the tested strain was determined by pot experiment. The results showed that 162 strains of bacteria with biocontrol effect were screened from more than 1 000 strains isolated from cotton rhizosphere soil, and 4 strains with good comprehensive effect were obtained by using the plate face-off method. Strains XJ5-6 and XJ6-96 showed better inhibitory effects, with the band width exceeding 5.0 mm and the inhibitory rate reaching 67.54% and 66.86%, respectively. The results of pot experiment showed that XJ5-6 and XJ6-96 combined inoculation had a good control effect on verticillium wilt of cotton, and the control effect was 32.2% and 29.9% on 28 and 40 days, respectively. XJ6-96 could improve the germination rate of cotton seed. Reference | Related Articles | Metrics

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Development and texture property analysis of walnut inulin biscuits HAN Xiao-jiang, WANG Ming-yue, GUO Yao-dong, WANG Tao HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 151-157.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.028 Abstract （303）      PDF （6938KB）（26）       Knowledge map    Save Using low gluten flour, walnut powder, inulin, butter and xylitol as the main raw materials,the formula of walnut inulin biscuits was developed by single factor test, response surface test and variance analysis with sensory evaluation and texture property as indicators. The results showed that the best formula of walnut inulin biscuits was walnut powder of 40.6%, butter of 20.5%, inulin of 8%, xylitol of 20.4%, and orange juice of 8%. Under this formula, the developed biscuits had a complete form and uniform color, and the best sensory score was 81.23 points, with a hardness of 8.943 N, a brittleness of 8.436 N, and a chewability of 9.516 N. The walnut inulin biscuits were moderately sweet, crisp and delicious, with walnut flavor, not greasy, providing theoretical reference for further processing and utilization of walnut and inulin. Reference | Related Articles | Metrics

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Induced expression and biological characteristics of dihydrolipoamide dehydrogenase in Mycoplasma synoviae CAO Xiao-yi, HU Qiao, ZHANG Wen-ting, DENG Lan-lan, GUO Yun-qing, LU Qin, ZHANG Rong-rong, ZHANG He-ping, LUO Qing-ping HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 205-210.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.036 Abstract （303）      PDF （5780KB）（67）       Knowledge map    Save In order to obtain the protein expression product of Mycoplasma synoviae （MS） dihydrolipoamide dehydrogenase （PdhD） and analyze its immunogenicity, DNAStar Protean software was used to analyze the secondary structure and main antigen domain of PdhD. A at positions 593, 731, 1 712, and 1 833 nt of the PdhD gene was mutated to G, so that the successfully modified gene could be expressed correctly in Escherichia coli BL21;after induction with IPTG, a protein of approximately 70 ku was obtained. The secondary structure of PdhD protein was predicted for 622 amino acids. The Garnier Robson method predicted 18 alpha helix centers, 12 beta folding segments, and 17 T-corner segments. The Chou Fasman method predicted 24 alpha helix centers, 23 beta folding segments, and 37 T-corner segments. The Karplus Schulz method predicted 42 flexible regions. The main antigenic domain of PdhD was Gln27-Phe36,Vla38-Val51, Ala89-Ala99, Pro137-Asp159, Gly307-Ile336, Gly369-Gly386, Gly397-Gln416, Ala433-Val447, Ieu486-Tyr504, and Ala541-Asn549. Immunogenicity analysis revealed that PdhD recombinant protein could strongly react with rabbit-derived Anti-MS serum, but did not react with rabbit-derived Anti-MG serum or rabbit-derived serum Blank. PdhD had immunogenicity and could be used as a candidate antigen for the development of subunit vaccines. Reference | Related Articles | Metrics

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Analysis on nutritional characteristics of rhizomes of Polygonatum sibiricum Red. in Fang County ZHENG Lan-lan, CHEN Sheng-hu, ZHANG Ze-zhi, FENG Hai-dong, JIA Li-gui, YOU Lei, LUO De-shun, ZHANG Yong-hong HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 110-114.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.020 Abstract （300）      PDF （4404KB）（169）       Knowledge map    Save In order to understand the medicinal quality and edible quality of Polygonatum sibiricum Red. in Fangxian County, Shiyan City, Hubei Province, in October 2023, the fleshy rhizoid of Polygonatum sibiricum Red. was harvested in Dachuan Town, Mengusi Town, Yerengu Town, Hualongyan Town and Shangkan Town, the fresh to dry weight ratio was measured, and the fresh slices were iodine dyed. The contents of starch, polysaccharides, soluble sugar and soluble protein in dried rhizomes of Polygonatum sibiricum Red. were detected. The results showed that the dry weight proportion of the fleshy rhizomes of Polygonatum sibiricum Red. in Fang County, Shiyan City, was 15.08%~28.76%, the starch content of the dry rhizomes was 98.44~145.89 mg/g, and the polysaccharides content was 8.59%~24.03%, all of which met the standard of Pharmacopoeia of the People’s Republic of China, and the medicinal value was high. The soluble sugar content and soluble protein content of the dry rhizomes of domestic Polygonatum sibiricum Red. were 51.53~154.29 mg/g and 83.18~276.21 mg/g, respectively, while the soluble sugar content and soluble protein content of the dry rhizomes of wild Polygonatum sibiricum Red. were 209.93~389.40 mg/g and 55.81~62.91 mg/g, respectively. Reference | Related Articles | Metrics

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Effect of spraying lime water on the quality of sweetpotato after storage CHAI Sha-sha, WANG Zhi, ZHANG Deng-bo, LEI Jian, WANG Lian-jun, JIN Xiao-jie, YANG Xin-sun, ZHANG Yue-hua, ZHANG Yan, YIN Ting-ting HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 5-7.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.002 Abstract （300）      PDF （1733KB）（214）       Knowledge map    Save Two different types of sweetpotato （Ipomoea batatas L.）, starch type and edible type, were selected as test materials. Two treatments were set up, including the treatment of spraying lime water, and entering the cellar after drying （SL）, and directly entering the cellar （CK）. The effect of lime water on the storage of sweetpotato was investigated. The results showed that, for edible sweet potato, compared with the control, the weight loss rate, amylose content and amylopectin content of the treatment of spraying lime water before pit entry decreased, the soluble sugar content increased first and then decreased, and the dry rate and soluble protein content increased. For starch-type sweet potato, compared with the control, the weight loss and reducing sugar content of the treatment of spraying lime water before pit entry increased first and then decreased, the dry rate and soluble protein content decreased first and then increased, the amylose content and amylopectin content decreased, and the soluble sugar content increased. Reference | Related Articles | Metrics

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Analysis and prediction of spatial-temporal change of land use in the Yilong Lake Basin HE Jia-feng, ZHAO Xing-feng, WANG Chun-fu, LIU Shu-xia, ZHENG Hong-gang HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 17-23.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.004 Abstract （298）      PDF （5813KB）（45）       Knowledge map    Save The remote sensing images of land use in the Yilong Lake Basin from 1990 to 2000 were extracted to obtain the spatial-temporal evolution trend of land use. At the same time, the research methods of land use transfer matrix and land use dynamics were used to explore the transfer in and out of different land use types in Yilong Lake in the past 31 years. Then, the PLUS model was used to predict the spatial pattern of land use in the Yilong Lake in 2030 and 2050. The results showed that, from 1990 to 2020, the area of cultivated land and water in the Yilong Lake Basin had been reduced, the area of construction land had increased significantly, the area of forest land had a small decrease, and the area of grassland had not changed much. The results of the land use transfer matrix showed that a large amount of cultivated land had been converted into construction land, and a large number of the water areas had been converted into cultivated land, indicating that Shiping County had occupied a large amount of cultivated land in the past 31 years of urbanization expansion, and in order to achieve the requisition-compensation balance, the lake reclamation was implemented. The prediction results of the PLUS model showed that in 2050, the scale of construction land in the Yilong Lake Basin would increase, and the area of cultivated land would decrease. Reference | Related Articles | Metrics

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Analysis of the durability of fly ash concrete with alkaline activator dosage LUO Jia-hui, GONG Ai-min, WANG Fu-lai, SHAO Shan-qing, WANG Ran, YONG Kang, JIN Zhuo, HUANG Yi-er HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 178-184.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.032 Abstract （298）      PDF （6004KB）（12）       Knowledge map    Save To improve the durability of fly ash concrete, fly ash concrete was used as the object to analyze the effects of different alkaline activator dosages （0%, 5%, 8%, and 10%） on the quality loss rate, relative dynamic elastic modulus, and compressive strength of fly ash concrete. Microscopic analysis of the alkali excitation process in fly ash concrete was conducted using scanning electron microscopy （SEM） and EDS spectroscopic diffraction patterns. The results showed that with the increase of alkaline activator dosage, the compressive strength of alkali activated fly ash concrete at different curing times showed a trend of first increasing and then decreasing. The quality loss rate of fly ash concrete with four different alkaline activator dosages increased with the increase of freeze-thaw cycles, and the quality loss rate of fly ash concrete was the smallest when the alkaline activator dosage was 8%;the relative dynamic elastic modulus of fly ash concrete with four different alkaline activator dosages decreased with the increase of freeze-thaw cycles, and the decrease in relative dynamic elastic modulus of fly ash concrete was the smallest when the alkaline activator dosage was 8%;the compressive strength of fly ash concrete with four different alkaline activator dosages decreased with the increase of freeze-thaw cycles. When the alkaline activator dosage was 8%, the compressive strength of fly ash concrete was the highest and the decrease in compressive strength was the smallest. The main elements of fly ash concrete with two alkaline activators （0%, 8%） were Ca, O, C, Si, and S. When the dosage of the alkaline activator was 8%, it could effectively promote the hydration reaction of fly ash concrete, increase the hydration product content of cementitious materials, and improve the mechanical and durability properties of fly ash concrete. Reference | Related Articles | Metrics

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Theoretical model of blockchain empowering fresh agricultural product supply chain based on the perspective of new quality productivity LIN Yong-min, LIU Zhan-fei, WANG Yi-han HUBEI AGRICULTURAL SCIENCES    2024, 63 (12): 185-190.   DOI: 10.14088/j.cnki.issn0439-8114.2024.12.033 Abstract （298）      PDF （2946KB）（164）       Knowledge map    Save In order to achieve new quality productivity in agriculture and promote the high-quality development of the agricultural product supply chain, a theoretical analysis framework of agriculture+new quality productivity was constructed. Based on the current situation of the fresh agricultural product in China, an analysis was conducted, and it was concluded that the current agricultural product supply chain was facing the practical dilemma of ‘being unable to sell in rural areas and unable to buy in cities’. Therefore, blockchain technology was introduced to build a new fresh agricultural product supply chain service platform. Based on functions such as distributed ledger, big data, and consensus mechanism, the coordinated development of all parties in the supply chain was ensured by breaking down information barriers between various entities, adjusting the information flow mode of the supply chain, providing one click services, information traceability mechanism, and data sharing mechanism, and balancing the origin market and end market. Reference | Related Articles | Metrics