灌溉方式对大豆光合性状及土壤水分利用率的影响  

Effects of Irrigation Modes on Photosynthetic Characters and Water Use Efficiency of Soybean

作　　者：张丽华[1] 赵洪祥[1] 谭国波[1] 闫伟平[1] 边少锋[1] 

机构地区：[1]吉林省农业科学院农业环境与资源研究中心,吉林长春130124

出　　处：《大豆科学》2012年第4期613-616,共4页Soybean Science

基　　金：国家科技支撑计划重点资助项目(2006BAD521B01-2)

摘　　要：设置均匀灌溉、固定隔沟灌溉、交替隔沟灌溉3种灌溉方式,分别在大豆开花期、结荚期和鼓粒期进行灌溉,每次单沟灌水量分为60、45和30 mm 3个水平,以不灌溉为对照,研究了灌溉方式对大豆光合特性的影响。结果表明:灌溉可极显著提高大豆叶片的光合速率和大豆产量,交替隔沟灌45 mm的R4期光合速率、产量与交替隔沟灌60 mm差异不显著,而且土壤水分利用效率最高,从节水增产增效角度分析,交替隔沟灌溉45 mm的灌溉方式最佳。Three irrigation modes of uniform irrigation（UI）,fixed furrow irrigation（FFI）and alternative furrow irrigation（AFI）were operated at flowering,podding and seed filling of soybean,with single furrow irrigation amount of 60,45 and 30 mm respectively,with no irrigation as control.Irrigation increased photosynthetic rate and yield of soybean evidently.The soil water use efficiency of AFI 45 mm was the highest,and there were no significant differences of the photosynthetic rate at R4 and seed yield between AFI 45 mm and AFI 60 mm.Hence,AFI 45 mm was the best irrigation mode base on the view of yield increasing and water saving.

关 键 词：大豆 灌溉方式 光合速率 产量 水分利用效率(WUE) 

分 类 号：S565.1[农业科学—作物学]