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。
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.
出处
《华北农学报》
CSCD
北大核心
1996年第4期99-103,共5页
Acta Agriculturae Boreali-Sinica
关键词
大白菜
施肥量
数学模型
Chinese Cabbage
Application level of fertilizers
Mathematical model
