不同黑土层厚度的大豆水氮耦合效应研究  

The Coupling Effect of Water and Nitrogen on Soybean under Different Layer Thickness of Black Soil

作　　者：白杨[1] 王存国 魏永霞[1,3] 柴宇[1] 

机构地区：[1]东北农业大学水利与建筑学院,哈尔滨150030 [2]黑龙江农垦北安分局红星农场水务局,黑龙江北安164000 [3]黑龙江省高校节水农业重点实验室,哈尔滨150030

出　　处：《节水灌溉》2013年第12期20-22,32,共4页Water Saving Irrigation

基　　金：国家"十一五"科技支撑计划项目(2007BAD88B01);东北农业大学博士基金项目;国家农业综合开发东北黑土区水土流失综合治理项目

摘　　要：采用饱和D(311-A)最优试验设计方案,通过盆栽试验,研究了在不同黑土层厚度(H)条件下的水(W)氮(N)耦合对大豆产量的影响。结果表明,各因素对大豆产量均有影响,其中水分对产量的作用最大,氮肥作用次之,黑土层厚度作用最小,水是制约该地区农业生产的主要因素;根据不同地区的黑土层厚度情况,确定了不同黑土层厚度下的水氮最佳投入量,从而为实现该地区大豆节水高产高效栽培提供了理论依据。Adopting the optimal experimental scheme, the coupling effect of water and nitrogen on soybean yield in different soil layer thickness was studied through the pot experiment. The results showed that all the factors had effects on soybean yield. Among them, the effect of water was the largest, that of the nitrogen is the second, and that of the black soil layer thickness is the least. ~C9o water is the main factor restricting agricultural production in this region. According to the layer thickness of black soil in different re- gion, the optimal water and nitrogen input quantity for different layer thickness of black soil was determined to provide theoretical basis for the realization of high-efficient and high-yield soybean water-saving cultivation in the region.

关 键 词：大豆 黑土层厚度 水氮耦合 产量 

分 类 号：S565.1[农业科学—作物学]