干旱地区农业研究2011，Vol.29Issue(1)：29-33,5.
地下水埋深对冬小麦和春玉米产量及水分生产效率的影响
Influence of groundwater depth on yield and WUE of winter wheat and spring maize
摘要
Abstract
The growth indicators, yield, yield components and water use efficiency (WUE) of winter wheat and spring maize were investigated under different groundwater depth by using drainable lysimeter. The results showed that different groundwater depth had little influence on 1000-grian weight of winter wheat and spring maize. They had significant effect ( P = 0. 05) on dry matter weight of winter wheat. When groundwater depth was more than 1. 0m, the planting density, tiller number, spike number, grains per spike of winter wheat and the plant height, spike heigth, ear weight per plant of spring maize increased significantly. Analysis of experimental data of many years (2002 ～ 2006) indicated that the yield and WUE of winter wheat increased with groundwater depth increasing; when groundwater depth was 0.5 m,the yield of spring maize got to the highest value (8 262.0 kg/hm2), while WUE was the lowest (0.97 kg/mm). When groundwater depth was 1.5 m, the WUE was highest (1.44 kg/mm), while the yield of spring maize (7 221.0 kg/hm2)was lower than the highest value. According to the double target of improving the yield and WUE, the suitable groundwater depth for winter wheat and spring maize were 1.5 m and 1.0 m below respectively in Fenhe Irrigation District. The results obtained from the paper would be helpful to the study of water-saving irrigation design and effective irrigation management of winter wheat and spring maize.关键词
地下水埋深/产量/水分生产效率/冬小麦/春玉米Key words
groundwater depth/ yield/ WUE/ winter wheat/ spring maize分类
农业科技引用本文复制引用
刘战东,肖俊夫,牛豪震,贾云茂..地下水埋深对冬小麦和春玉米产量及水分生产效率的影响[J].干旱地区农业研究,2011,29(1):29-33,5.基金项目
国家现代玉米产业技术体系建设专项资金资助(nycytx-02-18) （nycytx-02-18）
