靖宇山区中低产田春小麦合理施肥初步研究

A STUDY ON THE MODEL OF RATIONAL FERTILIZITION IN MIDDLE- AND LOW-YIELDING FIELD OF SPRING WHEAT IN MOUNTAIN AREA OF JINGYU COUNTY

摘要:

本文采用最优回归设计311-B方案,在靖宇县白浆土中低产田上研究了春小麦合理施肥问题,提出了春小麦产量与化肥有效成份N、P₂、O₅、K₂O用量之间拟合度较高的二项回归方程,探讨了化肥最佳养分用量,最佳产量及化肥有效成份的单素效应和交互效应。

Abstract:

In this paper, the problem of rational fertilizer application in middle-and low-yielding field of spring wheat in mountain area of Jingyu County was studied by using optimum regression model 311—B. The quadratic regression equation between spring wheat and fertilization of N, P₂O₅, K₂O was established and the optimum nutrient quantity, optimum yield and effects of single fertilizer and their interaction were investigated.