Effects of Controlled Irrigation on the Yield and Water Use Efficiency of Rice in Cold Region
An experiment was conducted to evaluate the effects of controlled irrigation on yields and water use efficiency(WUE)of rice in cold region during 20042008. Three treatments were considered in this study, including check plot(CK), trearment CI1 (controlled irrigation measure without storing rainfall) and trearment CI2(controlled irrigation measure of storing rainfall). The research results showed that the rice heory and quadrat yields slightly de-crease under CI1, while increase 6.3％ and 10.6％ under CI2. The water irrigated and consumed of CI1 and CI2 were all less than CK, and the water saved and reduced of CI1 were 267.6mm and 334.2mm. The WUE and irrigation water use efficiency (I WUE) of CI1 and CI2 were better than CK, and CI2 had better IWUE with CI1. Com-prehensive consideration of the effects, the use of CI2 was an excel-lent choice for rice controlled irrigation in cold region.
cold region rice water saving controlled irrigation
Wang Bin Zhang Enjiang Fuqiang
College of Water Conservancy and Building Engineering,Northeasl Agricultural University, Harbin 1500 Tangwanghe Irrigation Experiment Station, Tangyuan 154700, P. R. China
国际会议
山东淄博
英文
354-357
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）