Experiments and demonstrations on the rapeseed cultivation simulation-optimization decision support system
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.
Rapeseed production decision support system experiment and demonstration
ZHANG Chunlei CAO Hongxin LI Jun LIU Dan LI Feng ZHAO Yi LI Guangming
Division of Crop Physiology & Sustainable Agriculture, Institute of Oil Crops Research, CAAS, 2 Xudo Institute of Agriculture Resource and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
1259-1262
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）