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Research on short video content marketing for agricultural products based on SICAS model LIU Huan-yi, XIU Jian-xin, NIU Shan-bin, CHEN Xiao-feng HUBEI AGRICULTURAL SCIENCES    2023, 62 (7): 240-246.   DOI: 10.14088/j.cnki.issn0439-8114.2023.07.039 Abstract （433）      PDF （1580KB）（632）       Knowledge map    Save Short video content marketing of agricultural products has more prominent advantages than traditional agricultural marketing in terms of duration, content, interactive participation and emotional mobilization, but many problems have been exposed during the practice of combining. The article aimed to provide reference for improving short video content marketing for agricultural products, insisted on content as the core and customer-oriented strategy, and proposed five levels of short video content marketing strategy for agricultural products with reference to SICAS model, that was building a demand perception network with wide coverage and fast response; enriching the production channels of agricultural products short video heterogeneous content; determining the differentiated positioning based on platform characteristics, and relying on platform channels to connect with users; expanding sales channels based on platform selection, and optimizing shopping experience; actively guiding users to share their experience,and doing a good job of word-of-mouth marketing. Reference | Related Articles | Metrics

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Research progress in crop disease and pest identification based on deep learning LI Zheng, LI Bao-xi, LI Zhi-hao, ZHAN Yi-fang, WANG Li-hua, GONG Qi HUBEI AGRICULTURAL SCIENCES    2023, 62 (11): 165-169.   DOI: 10.14088/j.cnki.issn0439-8114.2023.11.029 Abstract （603）      PDF （1570KB）（546）       Knowledge map    Save In order to effectively prevent and control crop diseases and pests, and ensure crop health, rapid and accurate identification of crop diseases and pests was a prerequisite for effective prevention and control.A review was conducted on the research on crop pest and disease identification, summarizing the development process of crop pest and disease identification methods. The focus was on analyzing the network structure, modeling key links, and six typical architectural features of deep learning. Combined with current research hotspots and application prospects, prospects were made from the construction of public datasets, integration of multiple imaging technologies, and optimization of large model performance. Reference | Related Articles | Metrics

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Child care, family endowment and female non-agricultural employment：Based on the data analysis of CFPS HAN Ji-qin, KIPKOGEI Shadrack, HAN Bing, MIAO Xin-ru HUBEI AGRICULTURAL SCIENCES    2023, 62 (9): 249-256.   DOI: 10.14088/j.cnki.issn0439-8114.2023.09.042 Abstract （228）      PDF （1595KB）（536）       Knowledge map    Save The 2014 China Family Panel Studies （CFPS） data was used to analyze the impact of child care on female non-agricultural employment, and to ex plore the role of family endowment in alleviating the obstacles between the two. The results showed that child care had an important and significant inhibitory effect on rural female non-agricultural employment, and family economic capital and human capital could partially reduce the cost of rural women taking care of children and help to alleviate this inhibitory effect. In addition, the heterogeneity analysis from the perspectives of rural women’s age, child’s age, and daytime caregivers was conducted, and the results once again proved that child care hindered rural female non-agricultural employment. This result reflected that there were still some rural women laborers in China who had not entered the non-agricultural employment market because they needed to take care of children. Improving family endowments was conducive to the release of these important laborers, which had practical significance in adjusting the structure of the labor market, improving the family’s economic living standard and well-being and finding a balance between family and work for rural women. Reference | Related Articles | Metrics

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Spatial evaluation of village streets and lanes under the Great Heritage Relic Protection——A case study of Jiangwudian Village in Xi'an City ZHANG Dan, FENG Yan, ZHANG Ling, WANG Dong-meng, KONG De-zheng HUBEI AGRICULTURAL SCIENCES    2023, 62 (5): 112-117.   DOI: 10.14088/j.cnki.issn0439-8114.2023.05.020 Abstract （505）      PDF （5942KB）（432）       Knowledge map    Save Taking Jiangwudian Village in Xi'an City as the research object and taking into account the conservation policy of the Great Heritage Relic Protection and related planning, the corrected axes were imported into Depthmap X software based on the theory of spatial syntax, and quantitative analysis was carried out on the connection value, integration, selection and comprehensibility. The results showed that the spatial permeability of Jiangwudian Village was weak due to the concentrated layout of houses and the villagers' focus on overall living and transportation; the villagers' daily travel was restricted due to the development of public transport, which resulted in a poor overall integration degree and a high local integration degree; the overall selection degree of the village was low, which had a great influence on the external reception potential of the village; the comprehensibility of villages was low, and it was difficult for outsiders to perceive and understand the structure of villages. The public service facilities of the village needed to be improved, the function of the spatial nodes of the village should be strengthened, a comfortable and pleasant local green space should be created in the context of the Great Heritage Relic Protection, and the accessibility and traffic guarantee function of the village should be improved, so as to provide a suitable spatial environment for the future development of the village. Reference | Related Articles | Metrics

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Habitat suitability evaluation and important influencing factors of Picea schrenkiana JING Yun-yun, XU Zhong-lin HUBEI AGRICULTURAL SCIENCES    2023, 62 (6): 11-17.   DOI: 10.14088/j.cnki.issn0439-8114.2023.06.003 Abstract （309）      PDF （2968KB）（422）       Knowledge map    Save Taking Picea schrenkiana as an object, based on 210 distribution sample data and 23 environmental variables, the MaxEnt model was applied to predict the potential distribution and important impact factors of Picea schrenkiana under the current climate environment. The accuracy of the model was tested using the Receiver Operating Characteristic curve （ROC curve）, and the contribution rate, replacement importance, and knife cut method of environmental factors were used to screen the dominant ecological factors. ArcGIS was combined to achieve visualization of suitable growth areas for spruce in Xueling. The results showed that the average AUC obtained by running the MaxEnt model repeatedly for 10 times was 0.953, indicating that the model had high prediction accuracy, and the predicted geographical distribution results of Xueling spruce are highly consistent with the actual distribution data points, the operation results were reliable; under the current climate environment, were high suitability areas of Picea schrenkiana were mainly distributed in the Tianshan Mountains, including the Ili River Valley, the mountains on both sides of the Tekes River Valley, the Borokonu Mountains, the Bogda Mountains, the western mountains of Jungar, the Alatao Mountains, and the mountains on both sides of the Fergana River Valley. The areas of high, medium, and low suitability areas respectively accounted for 5.44%, 10.75%, and 12.60% of the total suitability area; in the current climate environment, the dominant environmental factors affecting the geographical distribution of Picea schrenkiana were elevation, slope, driest monthly precipitation （bio14）, annual average temperature （bio1）, and warmest season precipitation （bio18）, among which altitude was the most important factor affecting the geographical distribution of Picea schrenkiana. Reference | Related Articles | Metrics

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Multi scenario simulation of cultivated land landscape pattern in Western Hubei mountainous area based on PLUS model PENG Hong-bing, SONG Jian, YIN Wen, QIAN Zhao-dong, TENG Xin, MENG Xue HUBEI AGRICULTURAL SCIENCES    2023, 62 (11): 51-59.   DOI: 10.14088/j.cnki.issn0439-8114.2023.11.010 Abstract （247）      PDF （5953KB）（366）       Knowledge map    Save Taking 19 counties （cities, districts） in Western Hubei as the research object, the PLUS model was used to simulate the temporal and spatial evolution law of cultivated land landscape under the constraints of natural conditions and the dual constraints of natural and socio-economic conditions, and clarify the important influencing factors of cultivated land landscape pattern. The results showed that the number of cultivated land in Western Hubei would still show a downward trend in the future. The main factors affecting cultivated land change were elevation, vegetation cover and hydrological conditions. The spatial distribution pattern of patch shape was significantly affected by topography, which was characterized by superior in the north and inferior in the south; in terms of time change, the cultivated land patch shape showed an obvious trend of optimization and development. In terms of patch pattern, the overall spatial aggregation, connectivity and fragmentation of the cultivated land patch in Western Hubei were poor, and there was a risk of continuous deterioration of cultivated land patch pattern. The difference of multi scenario simulation showed that the regular development of the cultivated land patch would be limited by social and economic activities, and only driven by natural conditions, the cultivated land landscape was easier to develop in the direction of complexity and fragmentation. Reference | Related Articles | Metrics

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Analysis of endophytic fungi and the rhizosphere soil fungi communities of Polygonatum cyrtonema Hua. LI Ming-jian, CHEN Xiao-fang, CHENG Zhong-jun, REN Xiu-xiu, ZHANG Xiang-yu HUBEI AGRICULTURAL SCIENCES    2023, 62 (8): 13-20.   DOI: 10.14088/j.cnki.issn0439-8114.2023.08.00 Abstract （249）      PDF （3787KB）（365）       Knowledge map    Save The community composition and diversity of endophytic fungi and rhizosphere soil fungi of wild Polygonatum cyrtonema Hua. from Hunan Province, Guizhou Province and Guangxi Zhuang Autonomous Region was analyzed based on Illumina MiSeq high-throughput sequencing technology. A total of 3 188 ASVs were obtained in all samples, and were divided into 11 phyla, 33 classes, 85 orders, 166 families, 320 genera and 375 species. Fungi mainly belonged to Ascomycota and Basidiomycota. At the genus level, the dominant genera of rhizosphere fungi were Cladophialophora and Exophiala in Guizhou Province, Archaeorhizomyces and Mortierella in Hunan Province, and Fusarium and Saitozyma in Guangxi Zhuang Autonomous Region; the dominant genera of endophytic fungi were Exosporium, Entoloma, etc. in Guizhou Province, while they were Geastrum, Mortierella, etc. in Hunan Province, and they were Fusarium, Saitozyma, etc. in Guangxi Zhuang Autonomous Region. The alpha diversity analysis showed that the diversity and richness of endophytic fungi and rhizosphere soil fungi communities in the medicinal parts of Polygonatum cyrtonema Hua. from these three provinces（region） were significantly different. The results of PCoA and UPGMA clustering showed that the composition of fungal communities in three areas was quite different; PICRUSt 2 predictive analytics showed that endophytic fungi and rhizosphere soil fungi were involved in multiple metabolic pathways and the production of active substances such as polysaccharides of Polygonatum cyrtonema Hua. Reference | Related Articles | Metrics

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Impacts of eco-spatial marine water changes on fish diversity in the Zhujiang River estuary WANG Chan HUBEI AGRICULTURAL SCIENCES    2024, 63 (4): 127-135.   DOI: 10.14088/j.cnki.issn0439-8114.2024.04.024 Abstract （205）      PDF （2156KB）（355）       Knowledge map    Save Data about fish diversity in the Zhujiang River estuary from 2016 to 2018 were collected for the water environment data analysis and species diversity assessment. The results of RDA analysis showed that water depth, dissolved oxygen, water coverage, salinity, pH and water temperature had certain influences on fish, among which the degree of chromium influence on fish diversity accounted for 25.92% of the variables of overall water quality. During the experimental period, the parameters of seawater quality changed over time, and the response of family, genus, and species of fish to nitrite and lead changes was the most senstitive, especially the Cyprinidae. The large amount of industrial pollution discharged affected the fish population size. In addition, chromium and petroleum substances were the significant conditions that determined the fish diversity in the Zhujiang River estuary and largely limited the activity value of ecological space. Reference | Related Articles | Metrics

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Breeding and direct seeding cultivation techniques of Runfengxiangzhan, a high quality aromatic rice reaching the ministry standard first-class DU Xue-shu, LI Jin-bo, XIA Ming-yuan, WAN Bing-liang, QI Hua-xiong, YANG Da-bing, HU Liang, DING Xin-tao, HU Ding-zhe HUBEI AGRICULTURAL SCIENCES    2023, 62 (11): 1-4.   DOI: 10.14088/j.cnki.issn0439-8114.2023.11.001 Abstract （322）      PDF （1573KB）（354）       Knowledge map    Save Runfengxiangzhan is a new high-quality conventional rice variety bred by hybridization of Xiadao No.1, Huarun No.2 and R825. It was approved by the Crop Variety Approval Committee of Guangxi Zhuang Autonomous Region in 2022. The variety had high yield, good rice quality, rich aroma, good taste, and good resistance to rice blast and bacterial blight. According to the characteristics of the variety, it was considered that the variety was suitable for various cultivation methods. In cultivation, it should be sown in time, appropriately increase the amount of sowing, control nitrogen and increase potassium, and improve lodging resistance. Reference | Related Articles | Metrics

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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）（341）       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

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Landscape planning of rural waterfront under the concept of ecological livability： Taking Changtang River of Xiangshan County in Zhejiang Province as an example GUO Tao HUBEI AGRICULTURAL SCIENCES    2023, 62 (6): 120-124.   DOI: 10.14088/j.cnki.issn0439-8114.2023.06.022 Abstract （261）      PDF （3969KB）（323）       Knowledge map    Save In order to build a beautiful village and create a pleasant village waterfront landscape, the ecological livable concept was applied to the landscape planning of rural waterfront on the basis of combing relevant research. Taking the landscape planning of Changtang River of Xiangshan County in Zhejiang Province as an example, the regional water landscape, water culture, water ecology and water tourism were deeply analyzed from multiple angles and multi-dimensions, and the planning objectives and design ideas of realizing the improvement of rural waterfront landscape were discussed, in order to provide reference for the landscape planning of rural waterfront in the future. Reference | Related Articles | Metrics

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Spatio-temporal evolution and spatial correlation of carbon emissions in Guiyang City based on land use change ZHOU Wei-ting HUBEI AGRICULTURAL SCIENCES    2023, 62 (5): 8-13.   DOI: 10.14088/j.cnki.issn0439-8114.2023.05.003 Abstract （356）      PDF （3383KB）（309）       Knowledge map    Save Taking Guiyang City as an example, based on the 30 m land cover remote sensing data from 2000 to 2020, the land use transfer matrix, carbon emission calculation model and spatial auto-correlation were used to analyze the spatio-temporal evolution and spatial correlation of land use types and carbon emissions in Guiyang City, to provide reference for the realization of regional “dual carbon” goal and the development of the green and low-carbon economic model. The results showed that from 2000 to 2020, the total carbon emission of land use in Guiyang City had a rapid growth rate on the whole, and the carbon source showed an increasing trend. The carbon source mainly consisted of construction land, and the carbon sink mainly consisted of forest land with only slight fluctuation. In terms of the spatial differences of carbon emissions from 2000 to 2020, the heavy carbon emission areas were mainly concentrated in Yunyan District and Nanming District, and showed a westward expansion trend; the moderate carbon emission areas were mainly concentrated in the southwest and northeast wings of Guiyang City, and showed a northeast shift trend. In terms of spatial correlation, the carbon emission of land use in Guiyang City showed a positive spatial correlation in 2000, and a negative spatial correlation with increasing correlation from 2005 to 2020. The pattern of land use carbon emission in Guiyang City was not optimistic, and the structure and intensity of land use were in urgent need of adjustment. Therefore, feasible low-carbon emission reduction policies should be formulated according to the actual situation of Guiyang City to promote the low-carbon, efficient and sustainable utilization of regional land resources. Reference | Related Articles | Metrics

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Can Internet use promote rural females’ non-agricultural employment under the background of digital economy ZHAO Lan-lan, XIA Yong HUBEI AGRICULTURAL SCIENCES    2024, 63 (3): 59-68.   DOI: 10.14088/j.cnki.issn0439-8114.2024.03.010 Abstract （274）      PDF （1950KB）（309）       Knowledge map    Save Using the Chinese General Social Survey data in 2017, combined with empirical analysis methods such as Probit model, Random forest model and extended regression model, the impact and mechanism of Internet use on rural females’ non-agricultural employment decisions in the digital era were analyzed. The results showed that Internet use could promote non-agricultural employment of rural females, and the marginal effect was 6.8%; the higher the frequency of modern media use, the higher the probability of non-agricultural employment of rural females, especially the impact on self-employment was greater than employment; the influence of information access channel was not significant. Heterogeneity analysis showed that Internet use had a higher probability of increasing non-agricultural employment for rural females with junior middle school education level, low family care intensity and low family economic level. Internet use might affect non-agriculture employment through three channels of increasing human capital level and experience accumulation, extending social relations and improving the traditional gender perception. It showed that in the digital economy era, the use of the Internet played a positive role in the participation of rural females in non-agricultural employment, and also provided a new perspective for exploring the digital dividend under the existing labor constraints, optimizing the labor allocation of resources, and promoting the sound and rapid economic development. Reference | Related Articles | Metrics

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Effects of cigar leaves fermentation by Bacillus licheniformis on aroma components formation HU Lu-lu, SONG Wen, YU Jun, YANG Chun-lei, WANG Zhi, CHEN Xiong HUBEI AGRICULTURAL SCIENCES    2023, 62 (7): 107-112.   DOI: 10.14088/j.cnki.issn0439-8114.2023.07.019 Abstract （258）      PDF （1718KB）（306）       Knowledge map    Save CX-014 cigar leaves as raw materials were used to study the effects of nutrients and Bacillus licheniformis on the aroma components production efficiency and the quality of cigar leaves. The results showed that the nutrient formula obtained by orthogonal optimization experiments was 3.0% glucose, 0.6% glutamate and 0.6% diammonium phosphate. The total content of aroma substances fermented by 7 d with added nutrient （test group） reached 635.2 μg/g, which was 16.4% higher than that of the natural fermentation. The carotenoid transformation products, phenylalanine transformation products and brown reaction products increased by 38.2%, 159.6% and 75.9% compared with natural fermentation, respectively. Then, the test group inoculated with Bacillus licheniformis （2×108 CFU/g, optimized group） had been fermented for 7 days. Compared with the test group, the total content of aroma substances was 791.6 μg/g, which was increased by 24.6%; the content of carotenoid transformation products （63.3 μg/g） and the brown reaction products （25.2 μg/g） was increased by 45.9% and 27.9%, respectively. Reference | Related Articles | Metrics

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Analysis of endogenous harmful components in ginkgo seed kernel and fried ginkgo seed kernel ZHANG Yan-miao, DING Ming-he, ZHANG Ying, TAN Zhong-chuan, ZHOU Tian-tian, GAN Guo-ping HUBEI AGRICULTURAL SCIENCES    2023, 62 (5): 153-159.   DOI: 10.14088/j.cnki.issn0439-8114.2023.05.027 Abstract （270）      PDF （3286KB）（285）       Knowledge map    Save Ginkgo seed kernel and fried ginkgo seed kernel were used as experimental materials for the determination of total ginkgolic acid using HPLC. The chromatographic column was YMC-Triart C18 （4.6 mm×150 mm,5 μm）. The mobile phase was acetonitrile solution with 0.1% trifluoroacetic acid -0.1% trifluoroacetic acid aqueous solution, with a detection wavelength of 310 nm and a flow rate of 1.0 mL/min; 4′-O-methyl pyridoxine （MPN） and 4′-O-methoxy pyridoxin-5′- glucoside （MPNG） were determined by HPLC on YMC Triart C18 （4.6 mm×150 mm,5 μm）. The mobile phase was methanol deionized water, with a detection wavelength of 328 nm and a flow rate of 1.0 mL/min. Headspace gas chromatography （HS-GC） was used to perform a limit check on hydrocyanic acid. The results showed that the average recovery rate of total ginkgolic acid was 101.17%, RSD was 4.57% （n=6）, the quantification limit was 12.18 ng, and the detection limit was 4.87 ng; the average recovery rate of MPN was 103.14%, RSD was 4.80% （n=6）, the quantification limit was 5.94 ng, and the detection limit was 2.38 ng; the average recovery rate of MPNG was 103.54%, RSD was 3.05% （n=6）, the quantification limit was 11.20 ng, and the detection limit was 4.48 ng; the quantitative limit of hydrocyanic acid was 10 ng, and the detection limit was 3.5 ng. The established method had strong specificity, good repeatability, and high sensitivity, and could be used for the detection of endogenous harmful components in ginkgo seed kernel and fried ginkgo seed kernel. Reference | Related Articles | Metrics

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Knowledge mapping analysis of Chinese flower border research based on CiteSpace HUANG Jia-cheng, LIU Hong-tao, CHEN Yuan-yuan, LYU Wen-jun, LUO Jing HUBEI AGRICULTURAL SCIENCES    2023, 62 (5): 92-99.   DOI: 10.14088/j.cnki.issn0439-8114.2023.05.017 Abstract （274）      PDF （3928KB）（276）       Knowledge map    Save The literature on flower border published from 1981 to 2021 were collected from the CNKI database as the research object. The knowledge map was drawn by CiteSpace scientific knowledge visualization software, and the authors, research institutions, keywords were analyzed in combination with literature analysis, so as to sort out the development and tendency of Chinese flower border research. The results showed that the research stage of Chinese flower border research could be divided into accumulation period （1981—2000）, growth period （2001—2018） and decline period （2019—2021）; the research group was in the situation of “overall dispersion and partial concentration”, and the extensive cooperative relationship between research institutions had not been established; Chinese flower border research could be divided into four aspects： Flower border design concept research, flower border plants research, flower border application research and flower border construction management research, and the relatively stable research system had been formed; the current research on flower border in China mainly focused on the application and plants research under different cities, environments and scenes, and functional flower border with different characteristics such as low maintenance or rainwater regulation. Based on historical background such as urban biodiversity conservation, carbon neutrality and peak carbon dioxide emissions, exchanges and cooperation should be strengthened, and the follow-up study should be carried out from the perspective of multidisciplinary integration. Reference | Related Articles | Metrics

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Analysis of influencing factors of farmland fragmentation based on geographical detector： A case study of Guangzhou City CHEN Jun-tao, LIN Jin-yao HUBEI AGRICULTURAL SCIENCES    2023, 62 (5): 14-21.   DOI: 10.14088/j.cnki.issn0439-8114.2023.05.004 Abstract （336）      PDF （2192KB）（273）       Knowledge map    Save Guangzhou was selected as the research area. The landscape pattern index method, comprehensive index method and principal component analysis method were used to construct the evaluation system of farmland fragmentation degree, and the comprehensive index of farmland fragmentation degree of each town and street unit in the region was calculated. Ten quantifiable factors of natural conditions and human social activity were selected, and the geographical detector model was used to detect the impact of 10 factors on farmland fragmentation. The results showed that all 10 factors were the influencing factors of farmland fragmentation in Guangzhou City. The influence of the single factor on farmland fragmentation from strong to weak was urban administrative center distance factor, temperature factor, GDP factor, slope factor and altitude factor, precipitation factor, construction land distance factor, road distance factor, water body distance factor and population density factor. The interaction of any two of the 10 factors showed two-factor enhancement or nonlinear enhancement. Based on the research conclusions, some suggestions were put forward to provide valuable decision-making reference for reducing the level of farmland fragmentation in Guangzhou City. Reference | Related Articles | Metrics

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Screening and comprehensive evaluation of maize varieties resistant to ear rot in Southwest China LI Hui, GOU Xiao-song, ZHANG Xiao-wei, SONG Cheng-xiao, DUAN Ming-yu, CHEN Xiao-cui HUBEI AGRICULTURAL SCIENCES    2023, 62 (7): 7-11.   DOI: 10.14088/j.cnki.issn0439-8114.2023.07.002 Abstract （277）      PDF （1623KB）（273）       Knowledge map    Save To screen out new maize （Zea mays L.） varieties with ear rot resistance suitable for planting in Southwest China, 42 maize varieties in Southwest China were selected for disease resistance identification and analysis of yield related traits using a randomized block design. The results showed that, different varieties had different resistance to corn ear rot, stem rot, sheath blight and other fungal diseases. Among them, Fengyu 799, Qiushuoyu No.2, Guidan 162 and Zhengda 615 had the best comprehensive resistance, reaching the high resistance （HR） level. In addition, the plant height, ear height, ear length, ear diameter, bald tip length, row number per ear, grain number per row, 100-seed weight, seed rate and yield of different varieties were significantly different; the average yield of the varieties ranged from 4 118.10 to 9 855.60 kg/hm2, among which the yield of Shuijingdan 15 had the highest yield （9 855.60 kg/hm2）, followed by that of Qiushuoyu No.2 （9 758.25 kg/hm2）. On the whole, Qiushuoyu No.2, Fengyu 799, Jingyu No.1, Shuijinyu No.6, Zhenghong 311 and Zhongyu 335 had better comprehensive disease resistance and higher yields, which were suitable for new maize varieties with ear rot resistance planted in Southwest China. Reference | Related Articles | Metrics

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Empirical study on the efficiency of technological innovation of agricultural listed companies LU Zhi-juan HUBEI AGRICULTURAL SCIENCES    2023, 62 (7): 177-181.   DOI: 10.14088/j.cnki.issn0439-8114.2023.07.030 Abstract （234）      PDF （1735KB）（267）       Knowledge map    Save Three hundred listed companies were selected to evaluate and analyze their technological innovation ability and influencing factors with the help of DEA-BCC model and Malmquist index. The results indicated that the overall level of technological innovation efficiency of agricultural listed companies was relatively low, and the comprehensive efficiency （35.2%）, pure technical efficiency （55.2%）, and annual decline of foreign-funded enterprises were slightly higher than those of private enterprises and state-owned enterprises. From 2018 to 2020, the Malmquist index of listed agricultural companies decreased by 28.37%, most of them were in the middle and low end of the value chain, and the level of technical efficiency had decreased. Moreover, the equity institutions, profitability and government subsidies of the companies passed the significance test of 10%, 5% and 1%, respectively, which were positively correlated with the efficiency of technological innovation. Agricultural listed companies should make reasonable use of innovation resources under their actual operation conditions, strive to improve their own business level and technological transformation ability, increase investment in technological innovation, and enhance their competitiveness. Reference | Related Articles | Metrics

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Study and design on weather insurance indices of river crab：Taking Xinghua City of Taizhou as an example WANG Zhan, GUO Jian-mao, ZHAO Bei-bei, TIAN Peng-fei, XIANG Yang, ZOU Xue-zhi, WU Yan-li HUBEI AGRICULTURAL SCIENCES    2023, 62 (9): 234-241.   DOI: 10.14088/j.cnki.issn0439-8114.2023.09.040 Abstract （218）      PDF （3435KB）（265）       Knowledge map    Save The real data of river crab production from 2010 to 2019 in Xinghua City, Taizhou were selected, the membership function was designed by using fuzzy mathematics theory, and the “trial and error” and normalized processing method were adopted to statistically analyze and associatively study the influence of different weather meteorological factors （high temperature days, continuous high temperature frequency, rain days, continuous rain frequency, short sunshine days, continuous short sunshine frequency） on river crab production indices （yield per unit seedling amount, survival rate）. The results showed that overcast and rainy weather had a great impact on the actual production of the river crab, while the negative impact of high temperature weather was weakened due to the intervention of human measures. Based on the research results, a weather index insurance product for the river crab （high temperature index, rainy index, overcast index） was designed, in order to promote the development of agricultural meteorological index insurance work in Taizhou City, and provide a pilot scheme for Jiangsu Province and even the national aquatic meteorological insurance business. Reference | Related Articles | Metrics