东北半干旱区大豆水肥耦合效应试验研究  

Experimental Research of the Different Water-fertilizer Combination of Soybean in Northeast Semiarid Area

作　　者：王柏[1] 王梦雪[1] 滕云[1] 张忠学[1] 

机构地区：[1]东北农业大学水利与建筑学院,哈尔滨150030

出　　处：《灌溉排水学报》2007年第5期86-89,共4页Journal of Irrigation and Drainage

基　　金：国家863计划项目(2002AA2Z4251)

摘　　要：通过盆载实验,研究不同土壤含水量情况下氮、磷、钾不同肥量的配比对大豆产量和水分利用效率的影响。结果表明:土壤含水量的增加可以提高大豆产量,提高肥料的利用效率;氮、磷、钾肥相互作用,相互影响,对大豆产量和水分利用效率的影响规律性不强;利用模糊多准则决策对不同肥量处理进行经济效益评价,结果表明,高氮低磷低钾的高水处理为最优的组合,经济效益最大。Through the means of the pot-grown test, researched the influence on the different fertilizer proportion of N,P,and K to the yield and the water-use efficiency of soybean under the different soil water content. Analyzed the interaction effect relation of different kinds of fertilizer, and between different fertilizer and water. The result showed that the increase of soil water content could enhance both the yield of soybean and the efficiency of the fertilizer. In the dispose of the high water and the low water, the different fertilizer of N,P and K influenced and effected mutually, the influence that the yield and the water-use efficiency of soybean were effected by the different fertilizer did not have the regularity. Utilizing the fuzzy multiple standards decision evaluated the economic benefits of the treatments of the different fertilizer proportion, the treatment of the high N,low P,low K was both the optimize combination and the best economic benefits in the different fertilizer proportion of N, P,and K.

关 键 词：水肥耦合 产量 水分利用效率 经济效益 

分 类 号：S565.1[农业科学—作物学]