东北半干旱区大豆水肥耦合效应试验研究  

Study on couple effect of water and fertilizer of soybean in northeast semiarid area

作　　者：郭亚芬[1] 滕云[2] 张忠学[2] 魏永霞[2] 王孟雪[2] 

机构地区：[1]东北林业大学林学院,黑龙江哈尔滨150040 [2]东北农业大学水利与建筑学院,黑龙江哈尔滨150030

出　　处：《东北农业大学学报》2005年第4期405-411,共7页Journal of Northeast Agricultural University

基　　金：国家"863"计划课题"东北半干旱抗旱灌溉区节水农业综合技术体系集成与示范"(2002AA2Z4251)

摘　　要：采用四因素五水平二次回归正交设计方案,在盆栽控制条件下,对大豆水肥耦合作用进行了初步研究。在建立了水肥耦合数学模型基础上,分析了各因子的主因素和单因素效应,两因素间交互耦合效应。结果表明,各因素对大豆产量均有影响,其作用大小顺序是:水分>钾肥>氮肥>磷肥,且钾肥是负效应。A two return interactive design of four factors and five levels was carried out under tubexp eriments to study the interaction of water and fertilizer coupling. On the basis of water and fertilizer coupling model put forward, the effect involved in main and single factors, interaction coupling were analyzed and studied respectively. The results showed that all factors were influent to soybean yield, while the influencing sequence from large to small is ： soil moisture 〉 K fertilizer 〉 N fertilizer〉 P fertilizer, and K fertilizer is inverse effect.

关 键 词：东北半干旱区 大豆 水肥耦合 

分 类 号：S238[农业科学—农业机械化工程]