一元肥料效应函数模型研究

Study on Model of The Fertilizer Effect Function

应用正交多项理论给出了一种施肥量为不等距的一元正交多项式肥料效应函数,它有如下优点:不需解正规方程,因而可避免“病态”出现;所有效应系数之间不存在相关性;计算量比普通的多项式回归模型小.

In this paper, a fertilizer effect function of the orthogonal polynomial was introduced. This model has the foilwing advantages: It can avoid the disadvantage of ill-conditioned equations; There is no correlation relationshop between regression coefficients in the model; The amount of calculation is smaller than that of common polynomial regression model.