1An Empirical Study on Early-warning of Zhongyuan Farmland Based on AHP Method:a Case Study of Xinzheng CityMENG Jun-jie, CAI Shi-zhong1-52Analysis of Comprehensive Benefits of Rural Household Biogas in HuixianLIU Xiao-ling, ZHENG Xun-gang, LIU San-cheng6-93The Problems and Solutions in the Leisure Agriculture Development of Henan ProvinceLIU She, ZHANG Fa-min, ZHANG Cheng 10-13,184Application Research Overview and Development Strategy of Digital Agriculture in Henan ProvinceLIU Bo-wen 14-185A Review on the Research of Crop Simulation ModelXUE Lin, ZHENG Guo-qing, DAI Ting-bo19-246The Roles of Endophytic Fungi in Biological Control of Plant DiseasesYANG Yu-feng, LI Bao-li25-287Effects of Supplementary Irrigation at Jointing Stage on Gain Filling and Yield of Winter Wheat in Central Henan ProvinceGE Lin, LIANG Wei-wei, WANG Zhi-qiang, LIN Tong-bao29-318Study of Esterase Isozymes in Different Maize SpeciesWANG Shi-hua, GAO Shuang-cheng, GUO Jia-ming, CHANG Hui-qing, LI You-jun32-34,1049Effects of Salicylic Acid on Antioxidant System of Maize Polluted by Used BatteriesJI Xiu-e, WANG Hong-xing, REN Shuai, SHI Liu-gong, ZHAO Pan 35-3810The Effect of Mercury Stress on Invertase and Phenylalanine Ammonia-lyase Activities in Wheat SeedlingsDUAN Zhang-ling, WANG Lin39-4211Effects of Isolane and Lifengling on Lodging Resistance and Yield of Direct Sowing RiceZHANG YOU-qiang, XU Feng-ying, WANG Xiao-ling, MA GUO-hui, TIAN Xiao-hai, ZOU Hua-wen43-4612Analysis of Comparative Superiority of Oats in Zhangjiakou AreaMENG Fan-yan, FAN Yong47-4913Breeding and Application of Maize Hybrid Luodan 668LI Jian-gang, HAN Wei-hong, LI Xiao-dong, MA Xiang-long, GUO Dang, ZHOU Xin 50-5114Substituting Spent Mushroom Substrate for Peat to Prepare Floating System Medium for Flue-cured TobaccoZHANG Guo-sheng, WANG Bao-xiang, ZHANG Chao-hui, CAO Yu-bo, LIU Tian-xiang, XI Shu-ya, QIU Li-you52-5515Optimization of the Method for Screening Arabidopsis Low-K+Tolerant MutantsSHEN Xiao-yan, JIANG Cui-ru, WANG Zeng-lan56-5816Effect of Applying Chemical Fertilizer and Manure on Rapeseed Yield and Profit in Qinghai ProvinceLI Yue-mei, XU Ren-hai59-6117Comparison of Three Methods for Fat Content Measurement in Soybean SeedsMA Ai-ping, SHAO Qun, SUN Zhi-bin, CHENG Wen, LI Ji-cun62-6418Effects of Aerobic Fermentation Seedling-breeding in Higher Temperature on Agronomic Characters and Economic Traits of Flue-cured TobaccoLUO Fu-ming, DENG Shi-yuan, XIE Wen-ting, LING Shou-jun, WANG Wei, WANG Jun, CHEN Jian-jan, WEN Jun65-6819Effects of Different Interplanting Models of Flue——cured Tobacco and Wheat Interplanting on Agronomic Traits, Yield and Quality of ProductsFU Zhan-ying, HAN Dong-heng, WANG Guo-feng69-7220Preliminary Study on Uptake Rate of Nitrogen and Phosphorus by Sargassum fusi formeLI Zai-liang, SHEN Yu-chun, XIE En-yi, WU Zao-he, DU Xiao-dong73-77 