高油大豆东农46号脂肪含量的氮磷钾肥效应回归模型

【研究目的】了解氮磷钾肥对高油大豆油分含量的综合作用，指导高油大豆优质高效生产。【方法】采用正交回归旋转设计方法，建立了氮、磷、钾肥对高油大豆东农46号脂肪含量的综合作用模型，根据该模型探讨氮、磷、钾肥对大豆脂肪含量影响的规律。【结果】氮、磷、钾肥对大豆脂肪含量的单因素效应、二因素互作效应受到其它因素水平的影响。氮肥对脂肪含量的影响均为增加效应，增加速度随着氮肥编码值增高而加快。磷肥和钾肥对脂肪含量的作用有正有负。获得23%以上的脂肪含量，相应的施肥措施为：施氮量为0.068~0.117 g/kg，施P2O5量为0.274~0.536 g/kg，施K2O量为0.060~0.109 g/kg，采用这个比例施肥有95%的可能使大豆品种东农46号的脂肪含量高于23%。【结论】对于高油大豆品种，通过不同肥料施用量和施用比例的调节可以实现高油目标。

Regression Model of Effects of Nitrogen, Phosphorus and Potassium Fertilizer on Oil Content in Soybean Variety Dongnong46

In order to good production for high-oil soybean varieties, integrated action of nitrogen, phosphorus and potassium fertilizer on oil content in high-oil soybean were probed in this paper. METHOD]The action model was established for effects of nitrogenous, phosphorus and potassium fertilizer on oil content for soybean variety Dongnong46 with high oil content by using orthology regression rotating method. The rule of effects of nitrogenous, phosphorus and potassium fertilizer on the oil content in soybean was discussed by this model. RESULTS]The mon-factorial and interaction effects of nitrogenous, phosphorus and potassium fertilizer on the oil content were affected by other factors. Nitrogen fertilizer has produced positive effect on oil content, whereas phosphor and potassium fertilizer has produced positive and negative effects to oil content. Fertilizing measure to get oil contents over 23 % for Dongnong46 with 95% possibility were N 0.068-0.117 g/kg,P205 0.274-0.536 g/kg and K2O 0.060-0.109 g/kg. CONCLUSION]Oil content in high-oil soybean variety can be regulated by different utilization amount and ratio of nitrogen, and potassium fertilizer.