【摘要】 试验采用五因素五水平二次回归正交旋转组合设计，对影响油菜产量的播种期、密度、施氮肥量、施磷肥量和施钾肥量五个可控因子进行了研究，利用微机处理技术建立了油菜产量对五个栽培因子反应的数学模型．研究中运用数学模型优化筛选出油菜不同产量水平的各项栽培因子技术指标，为指导油菜生产、满足不同产量水平的需要，提供一系列切实可行的优化技术方案．通过大面积示范，效果很好．更多还原

【Abstract】 Regression method of orthogonal revolve substitution as employed in this study with five-factor:sowing date,plants/mu,the supplement of nitrogen,the supplement of phospho-rus and of potassium,which can affect the yield of Hibrid Rape,were studied numerically and syn-thetically.Corresponding mathematical odels have been set.All agronomic measuring parameters were obstained in different yield levels by mathematical model and selected of superior projects.A series of superior cultural chemes were put forward for the need of Rape production.更多还原