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该试验采用三因素二次通用旋转回归设计方法,对夏玉米制种氮、磷、钾最优施肥问题进行了定量研究。建立了中等以上肥力夏玉米制种产量形成的施肥函数模型,利用回归模型对最优施肥量、各种肥料要素的单独反应规律及其互作效应进行了探讨。
In this experiment, a three-factor quadratic universal rotation regression method was used to quantitatively study the optimal fertilization of nitrogen, phosphorus and potassium in summer maize. The fertilization function model was established to produce middle and above fertile summer maize varieties. The regression model was used to discuss the optimal fertilization and the individual reaction rules of various fertilizer elements and their interaction effects.