氮磷钾肥对大豆脂肪含量的效应

采用正交回归旋转设计方法，建立了氮、磷、钾肥对大豆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。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。获得绥农14号大豆品种21.5%以上的脂肪含量，相应的施肥措施为：施N量为0.07～0.13 g/kg，施P2O5量为0.11～0.37 g/kg，施K2O量为0.04～0.10 g/kg，采用这个比例施肥有95%的可能使大豆品种绥农14的脂肪含量高于21.5%。

Effects of nitrogen, phosphorus and potassium fertilizers on oil content in soybean

The integrated action model was established for the investigation ot ettects ot nitrogen, phosphorus and potassium fertilizers on oil content by using orthology regression rotating method. The rule of effects of nitrogen, phosphorus and potassium fertilizers on the oil content in soybean was discussed with this model. The mon-factorial and interaction effects of nitrogen, phosphorus and potassium fertilizers on the oil content were affected by other factors. Nitrogen fertilizer had positive effect on oil content, whereas phosphor and potassium fertilizer had both positive and negative effects. Fertilizing measure to get oil contents over 21.5% for Suinong 14 were N 0.07-0. 13 g/kg,P2O5 0. 11-0. 37 g/kg and K2O 0.04-0. 10 g/kg.