辉县市高产花生氮磷钾优化配方施肥研究

Research on fertilizing effect of NPK design for peanut high-yielding region in Huixian city

为探讨辉县市高产花生氮、磷、钾优化施肥配比,采用"3414"回归设计田间试验测得的数据,建立以花生产量为目标函数的三元二次、二元二次及一元二次的3类7种肥力效应模型,通过对各类模型提供的施肥决策及产量期望的经济效益分析比较,决选出以PK二元二次回归模型提供的施肥决策:即施纯N 120.00 kg/hm2,P2O564.44 kg/hm2,K2O 29.30 kg/hm2,可望获得花生产量4 056.48 kg/hm2,净收益26 143.06元/hm2,产投比26.25,作为辉县市高产花生的推荐施肥量.并对N、P2O5、K2O及其不同施肥水平的增产效应进行了讨论.

For discussing the optimal fertilizer ratio of N,P,K for the high yield peanut in Huixian city,we put to use the data named ＂3414＂ regression design from field experiments and established three classes benefits model about seven kinds are based on ternary,binary and unary quadratic which aimed peanut production as objective functions. Through analysis and compare different kind of models on economic benefits such as fertilization decision-making and expected output,so we decided to chose PK binary quadratic regression model as fertilization decision：that is apply pure N 120.00 kg/hm2,P205 64.44 kg/hm2,K20 29.30 kg/hm2,expected peanut output 4 056.48 kg/hm2,net benefits 26 143.06 yuan/hm2 and input-output ratio is 26.25.As recommend fertilizing amount of high yield peanut in Huixian city,we also discussed N,P205,K20 and different yield-improving effects on different fertility level.