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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．
Five factors and five levels of quadratic regression orthogonal rotation combined design was used to study the five controllable factors affecting the yield, including sowing date, planting density, nitrogen fertilizer amount, phosphorus fertilizer amount and potassium fertilizer amount, and using computer processing technology to establish The mathematical model of rapeseed yield response to five cultivation factors was established. In the study, the mathematic model was used to optimize the technical indexes of various cultivation factors selected for different yield levels of rapeseed. In order to guide the production of rapeseed and meet the requirements of different yield levels, a series of feasible optimization technical solutions were provided. Through a large area demonstration, the effect is very good.