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根据“系统工程最佳模拟配合”原理 ,运用二次回归正交组合设计方法 ,研究了在四川生态区条件下稻麦两熟中稻田连作秋大豆高产高效规范化栽培主要可控因子(育苗期、移栽密度、施肥量 )的优化组合技术。建立了高产高效两组数学模式 ;明确了 3个可控因素的决策变量顺序及其与最高产量、最佳效益的关系 ;优选了秋大豆1 0 0～ 1 2 5kg/ 6 6 7m2 、1 2 5kg/ 6 6 7m2 及净产值 40 0元 / 6 6 7m2 以上的技术组合方案。
According to the principle of “the best simulation of system engineering”, quadratic regression orthogonal design method was used to study the main controllable factors of high yield and standard cultivation of continuous cropping soybean in rice-wheat double cropping paddy field in Sichuan ecological zone (seedling stage, Transplanting density, the amount of fertilizer) the optimal combination of technology. Established two sets of mathematical models of high yield and high efficiency; clarified the order of the three controllable variables and their relationship with the highest yield and the best benefit; optimized soybean yield of 100 ~ 125kg / 667m2, 1 2 5kg / 667m2 and the net output value of 40 0 yuan / 6 6m2 above technology portfolio.