中文摘要：

于2006—2008年在中国科学院通州农田水循环与节水灌溉试验基地进行田间试验,研究灌水量对冬小麦生长、耗水、产量和水分利用效率的影响.试验设置了不同的灌水量处理,灌水量以布置在冬小麦冠层顶部20 cm标准蒸发皿蒸发量（E）的倍数表示.试验结果表明：2006—2007生长季节中0.75 E处理和2007—2008生长季节中0.625 E处理所对应的冬小麦产量最高.当灌水量小于0.25 E时,冬小麦生长受到水分胁迫,其产量下降25%以上.两个生长季节中冬小麦耗水量为219～486 mm,耗水量随灌水量的增加而增大.冬小麦产量和水分利用效率与耗水量之间呈二次函数关系.北京地区冬小麦返青后的生长季节内,其适宜喷灌水量为0.50～0.75 E.

英文摘要：

In 2006-2008,a field experiment was conducted at the Tongzhou Experimental Base for Water-Saving Irrigation Research,Chinese Academy of Sciences,Beijing,aimed to study the effects of sprinkler irrigation amount on the growth,grain yield,water consumption,and water use efficiency of winter wheat.Different treatments were installed,with the irrigation amounts expressed by the multiples of the evaporation（E） from a standard 20-cm diameter pan placed above winter wheat canopy.The grain yield was the highest in treatment 0.75 E in 2006-2007 and in treatment 0.625 E in 2007-2008.In treatments with irrigation amount less than 0.25 E,winter wheat growth was subjected to water stress,and the yield loss was larger than 25%.The water consumption of winter wheat in the two growth seasons was in the range of 219-486 mm,and increased with increasing irrigation amount.The relationships between the grain yield and the water consumption and water use efficiency could be described by quadratic function.Sprinkler irrigation with an amount of 0.50-0.75 E was recommended for the winter wheat growth after its turning green stage in Beijing area.