N、P、K三要素对水稻产量的效应分析  

Analyses of Effect of N, P and K on Yield of Rice

作　　者：包和平[1] 刘士彪[2] 王晓波[1] 张建华[3] 

机构地区：[1]吉林农业大学农学院,吉林长春130118 [2]前郭县农业技术推广中心,吉林前郭131100 [3]吉林农业大学教学试验站,吉林长春130118

出　　处：《吉林农业大学学报》2001年第2期5-8,共4页Journal of Jilin Agricultural University

基　　金：吉林省农业厅资助项目

摘　　要：利用数学模型研究了N、P、K对水稻产量的影响 ,分析了单因素效应、双因素效应和边际效应 ,得出三要素对产量的贡献率大小依次为 :N 1.2 0 81、P 1.0 5 2 7、K 0 .8499;N和P互作明显 ;当P处于高水平时 ,N的增产效果明显。说明高N、P配合适当的K是提高水稻产量的重要途径之一。The effects of N, P and K on rice yield have been studied through mathematical models. Single factor effects, double factor effects and side effects have been analysed. The results showed that the contributions of N, P and K to yield was N 1.2081>P 1.0527>K 08499. There was significant interaction between the effects of N and P. When the level of P was high,the effect of N was significant. Therefore, high yield of rice could be obtained with high levels of N and P accompanied with suitable level of K.

关 键 词：氮 磷 钾 产量效应 水稻 数学模型 配方施肥 

分 类 号：S511[农业科学—作物学]