摘要
[目的]优化河西灌区冬季储水灌溉技术。[方法]通过田间试验,探讨传统冬季储水灌溉(CI)、低定额储水灌溉(LI)、免耕免储水灌溉坐播种(NTSW)、免储水灌溉坐播种(NISW)4种储水播种模式对河西灌区春小麦出苗率及水分利用效率的影响。[结果]结果表明,4处理春小麦出苗率及产量相差不大,LI、NTSW、NISW与CI出苗率相差分别为1.78%、1.98%和2.44%,产量相差分别为12.87%、5.02%和9.16%,水分利用效率分别提高了0.22、0.21和0.33。[结论]该研究结果为实现水资源的高效利用提供依据。
[ Objective ] The purpose of this research was to improve the mode of winter storage irrigation in Hexi arid area. [ Method ] Field experiments were carried out in Hexi irrigation area. The effects of four different irrigation-tillage treatments on seedling emergence rate and water use efficiency （WUE） of spring wheat were studied. Four treatments were convention winter storageirrigation （CI）, low norm storage irrigation （LI） , no tillage-no storage irrigation-sowing with water（NTSW） and no storage irrigation-sowing with water（NISW）. [ Result ] The result showed that the seedling emergence rate of the four treatments had little difference. Compared to CI, the seedling emergence rate of LI, NTSW and NISW were only decreased by 1.78% , 1.98% and 2.44% ,respectively,and the yield of LI, NTSW and NISW were only decreased by 12.87%, 5.02% and 9.16% ,respectively. But the WUE of LI, NTSW and NISW were 0. 22 ,0. 21,0. 33 higher. [ Conclusion ] This research will provide the theoretical references for achieving efficiently utilization of water resources.
出处
《安徽农业科学》
CAS
北大核心
2009年第20期9425-9426,9429,共3页
Journal of Anhui Agricultural Sciences
基金
国家科技支撑计划(2007BAD46805)
关键词
注水播种
储水灌溉
春小麦
出苗率
水分利用效率
Sowing with water
Storage irrigation
Spring wheat
Seedling emergence rate
Water use efficiency
