Abstract: With the method of randomized block design four wheat cultivars with 12 irrigation methods were used to study irrigation application regime in drought year of 2010一2011.Results indicate the yield of wheat with more irrigations raised 1200一4200 kg /ha comparing to dry farming, a significantly higher grain production in tillering and overwatering irrigation was achieved than that irrigated in spring and with more yield in tillering irrigation,while more than 3 % yield of wheat was obtained with rose water but delayed water. Irrigation in tiller+jointing+ anthesis+grain filling stage and overwintering+jointing+anthesis+grain filling stage during the whole growth perind have the first and the second yield,respectively. Three times irrigations in tiller overwinter+jointing+anthesis stage can have closed to or exceed yield than that of four times watering in spring. However unification of higher yield and higher water use efficiency was achieved with 3 times water. There was a significant difference of the responses to irrigation treatment among cultivars, a stable yield with higher yield was gained with H4399 in dry farming,JM22 and J585 had a remarkable increased yield with added water, which show a good productivity.

Key words: Winter wheat, Drought, Irrigation at growth stake, Yield

CLC Number: 

• S152.7