冬小麦高产优质高效氮磷钾锌肥用量及配比方案研究

Study on the Amount and Ratio of Nitrogen Phosphorus Potassium and Zinc Fertilizers for High Yield profit and Quality of winter wheat

本文应用回归最优设计方法,建立了冬小麦氮磷钾锌肥用量与籽粒产量、蛋白质含量间关系的回归模型。对模型模拟优化后得不同最优目标项的施肥量配比方案;不同产量水平的经济最佳施肥量配比方案;不同籽粒蛋白质含量区间的最高产量施肥量配比方案,并利用多目标综合评价的方法选出9套积分较高的组合,作为综合总评较优方案。

In this paper, the D-Optimal Regression Design was applied in field experiment to set up the regression modelings, which described the quantitative relation between fertilizers (N,P,K,and Zn) and grain yields and protein content of winter wheat.The modelings were analysed with profit.The optimal fertilizer plans gaining high yield,high quality and high qrofit were obtained.The economical plans gaining distinct yields and the high yields plans with distinct protein content were optimized.These plans were composed of proper amount and ratio of fertilizers and would provide the scientific and economical basis for fertilization of winter wheat.