摘要： 采用3因素二次正交旋转回归设计的方法，研究了大白菜产量与氮、磷、钾施用量的关系，获得了施肥量与产量、纯收益和单株重相互关系的数学模型。对产量形成的3个因子间的主因子效应和交互作用进行了分析。并通过对三块试验地试验结果的比较，提出了正交旋转回归设计方法的适用性。

关键词: 大白菜, 施肥量, 数学模型

Abstract: The regression method of orthogonal conic substitution with 3 factors was used to analyse and simulate the level of fertilizers(N、P、K)applied to Chinese cabbage for high yield and good quality.The mathematical modeling on the relationship between application level of fertilizers and the yield or the profit or the single plant weight was set up.The independent and mutual relationships between the yield and the level of fertilizers were analysed.The suitability of the regression method of orthogonal conic substitution was discussed after comparing the results from there plots.

Key words: Chinese Cabbage, Application level of fertilizers, Mathematical model

中图分类号: 

• S634.3