不同灌水处理对冬小麦产量及水分利用效率的影响研究

Studies on Effects of Irrigation Systems on the Grain Yield Constituents and Water Use Efficiency of Winter Wheat

利用2001～2002年度冬小麦测坑试验资料,研究了冬小麦不同生育期灌水处理对冬小麦产量和水分利用效率的影响.在试验结果分析的基础上,提出冬小麦生育期适宜灌水时间和土壤水分控制指标,这对干旱缺水的华北地区,实现冬小麦节水与高产的统一有重要意义.

By using experimental data of winter wheat planted in lysimeters in 2001 - 2002, the effects of irrigation treatments in different growth stage on the grain yield constituents and water use efficiency of winter wheat were studied . Based on analyzing the experimental results, the optimal irrigation scheduling and optimal soil water index in growth stage were put forward. It is significant to realize the unification of water-saving and high yields of winter wheat in the North China Plain where the water resource shortage is becoming a major problem.