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通过对华油杂油菜品种“3414”完整方案的田间肥料效应试验,建立潜江地区华油杂油菜目标产量与氮磷钾养分施用量的一元二次和三元二次回归方程,并在此基础上,综合考虑潜江地区油菜栽培管理水平、土壤养分及自然条件,提出了区域性土壤养分丰缺指标以及华油杂油菜品种氮磷钾养分施用量的推荐修正值,推荐区域该油菜目标产量为190～230 kg/667 m2,推荐纯氮的最佳施肥量7.5～10.5 kg/667 m2,五氧化二磷的最佳施肥量3～6 kg/667 m2,氧化钾的最佳施肥量3～5 kg/667 m2。
Through the field fertilizer experiment of the complete plan of “Huarong” hybrid “3414”, we established the quadratic and quadratic regression equation of target yield and NPK nutrient application rate of Chinese hybrid oil rape in Qianjiang On this basis, taking into account rapeseed cultivation management level, soil nutrient and natural conditions in Qianjiang area, the paper proposed the recommended values of regional soil nutrient abundance and deficiency index and the application rates of N, P, and K in Huayou hybrid oil varieties. The recommended region The target yield of rapeseed is 190-230 kg / 667 m2, the optimum amount of pure nitrogen for application is 7.5-10.5 kg / 667 m2, the optimum amount of phosphorus pentoxide is 3-6 kg / 667 m2, the best for potassium oxide Fertilizer 3 ~ 5 kg / 667 m2.