盐碱地滴灌定额对春小麦生长及产量的影响  

Effect of Drip Irrigation Quota on Spring Wheat Growth and Yield in Saline Land

作　　者：姜国军[1,2] 郑旭荣[1,2] 王振华[1,2] 陈小芹[1,2] 龚婷婷[1,2] 宋常吉[1,2] 

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832000 [2]现代节水灌溉兵团重点实验室,新疆石河子832000

出　　处：《灌溉排水学报》2013年第4期52-54,共3页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(51169022);国家科技支撑计划项目(2011BAD29B06);兵团青年科技创新资金专项(2011CB020);石河子大学重大科技攻关项目(gxjs2010-zdgg03-03)

摘　　要：为研究新疆干旱区盐碱地无膜覆盖滴灌对春小麦的生长及产量影响,通过测坑试验设置了315、3 600、405、450mm四个灌溉定额处理。结果表明,全生育期内,株高与灌溉定额呈正相关,灌溉定额450mm时株高最高;地上部分干生物量随灌水处理的不同差异不明显,全生育期内呈抛物线型变化,出苗后70d地上部分干生物量达到最大值;产量在360mm和450mm灌溉定额处理间差异显著,其他处理差异不明显,360mm灌溉定额处理获得产量最大值。盐碱地滴灌春小麦适宜灌溉定额为378mm。Test-pit experiments, set four irrigation quotas of 315 mm, 3600 mm, 405 mm, and 450 mm , were conducted to study the effect of drip irrigation without mulch on the growth and yield of wheat in sa line and alkaline land in aird regions of Xinjiang. The results showed that plant height was positively corre- lated with irrigation quota, and plant height was the highest with irrigation quota of 450 mm in the whole growth period. Biomass dry weights above ground had no obvious difference in the different irrigation treatments and changed with parabola curve in the whole growth period. After seedling for 70 days, bio- mass dry weight reached the top. Difference o{ outputs between the irrigation quotas of 360 mm and 450 mm was significant, and the highest yield appeared with irrigation quota of 360 mm. It is recommended that irrigation quota for spring wheat should be 378 mm under drip irrigation in saline and alkaline land.

关 键 词：灌溉定额 春小麦 滴灌 产量 盐碱地 

分 类 号：S512.12[农业科学—作物学]