Experiments and demonstrations on the rapeseed cultivation simulation-optimization decision support system
文献类型： 会议论文
第一作者： ZHANG Chunlei
作者： ZHANG Chunlei 1 ; CAO Hongxin 2 ; LI Jun 3 ; LIU Dan; LI Feng; ZHAO Yi; LI Guangming;
作者机构： 1.Division of Crop Physiology & Sustainable Agriculture, Institute of Oil Crops Research, CAAS, 2 Xudong Second Rd, Wuhan 430062, China
2.Institute of Agriculture Resource and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
3.D
关键词： Rapeseed;production;decision support system;experiment and demonstration
会议名称： International Rapeseed Congress; 20070326-30; Wuhan(CN)
主办单位：
页码： 1259-1262
摘要： Three experiments and demonstrations had been carried out for the system during 2004/05 in Mianyang, Wuxue and Wuhu,all of which locate in the reaches of Yangtze River. After inputting local climate data in normal year and soil nutrient data etc., and modifying some parameters, the system generates a table of rapeseed cuhivation and management case, which including the density and sowing rate, leaf area index, the number of ramifications, silique per unit area, dry matter accumulation, a proper target yield and nutrition accumulation according with the high yield population quality dynamic growth indices. Results from the field experiments and demonstrations shows that those data narrows in the diversification extension of farmers practice. As for development stages of rapeseed, their date of emergence, 5 leaves stage, initial flowering stage, final flowering stage, mature stage are believable according to the expert knowledge and farm practice. And the yield increase scope is 18%-25%, economizes cost for at least 10%, and saves farmer 15-25 labour force per ha. The system has been verified and some parameter updated using the data through the experiments and demonstrations.
分类号： [ "S565.4" , "S565.4"]
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