土壤扩蓄增容肥对春玉米产量及水分利用效率的影响  

Effects of soil amendment fertilizers on yield and water use efficiency of spring maize

作　　者：王珍[1] 冯浩[1,2] 吴普特[1,2] 杜建[3] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,杨凌712100 [2]中国科学院水利部水土保持研究所,杨凌712100 [3]西北农林科技大学农学院,杨凌712100

出　　处：《农业工程学报》2009年第11期114-119,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家863计划项目(2006AA100204);新世纪优秀人才支持计划项目(01140602);高等学校学科创新引智计划(NO.111-2-16)

摘　　要：通过正交试验,研究秸秆配方、绵土配方2种土壤扩蓄增容肥对春玉米的应用效果。结果表明:在春玉米品种、肥料用量及灌水量共同影响下,秸秆配方、绵土配方土壤扩蓄增容肥在减少无机肥料用量28.6%情况下,仍能起到保持产量的作用;同时秸秆配方能有效提高水分利用效率与降水利用效率。与对照相比,秸秆配方在苗期及拔节期能有效减少土壤无效蒸发,提高0～20cm土壤水分的保蓄能力。该研究为秸秆配方土壤扩蓄增容肥的推广奠定了理论基础。Through the orthogonal test, the effects of two kinds of soil amendment fertilizers on yield and water use efficiency of spring maize were studied. Results indicate that the fertilizer with straw and loessial soil could keep the yield when 28.6% of inorganic fertilizer was reduced, as the research was done under the influence of the different spring maize varieties, different fertilizer amounts and different irrigation amounts. At the same time, the water use efficiency and precipitation use efficiency were increased. Compared with conventional urea, the fertilizer with straw could make the soil evaporation less and improve the storage capacity of soil water in 0-20 cm effectively in seedling and jointing stage. The study could provide a theoretical basis for popularize of soil amendment fertilizer with straws.

关 键 词：肥料 土壤 土壤含水率 土壤扩蓄增容肥 水分利用效率 土壤蓄水量 

分 类 号：S156.2[农业科学—土壤学]