膜下滴灌条件下制种玉米灌水制度研究  

Irrigation Schedules of Seed Maize with Trickle Irrigation Technique under Sub-film

作　　者：郑荣 王娟 缪纯庆 李长江 杨义荣[2] 

机构地区：[1]甘肃省张掖市农业科学研究院,甘肃张掖734000 [2]甘肃省农垦农业研究院,甘肃武威733006

出　　处：《灌溉排水学报》2015年第9期55-58,共4页Journal of Irrigation and Drainage

基　　金：星火计划重大项目(2012GA860001)

摘　　要：根据2a气象数据计算种子玉米生产中的理论需水量,在此基础上设置膜下滴灌灌溉试验,共8个处理,设置45%、60%、75%三个田间持水率梯度,探讨膜下滴灌栽培模式下制种玉米最佳灌水量。结果表明,当玉米全生育期的最优灌溉定额为4 095m3/hm2时,产量最高为9 269.1kg/hm2,单方水产粮最高为2.26kg,此时用水最经济。其余处理产量、单方水产值均较低。该结果可为张掖市膜下滴灌条件下制种玉米合理灌溉提供依据。The water demand of maize growth was obtained based on 2years of meteorological data,and the trickle irrigation technique under sub-film was designed to investigate the best irrigation water quantity through setting up 8experimental treatments and 3gradients of field capacity（45%,60%and 75%）.The results indicated that the highest yield of maize was 9 269.1kg/hm2 and the highest maize production was2.26kg/m3,and the water utilization was the most economical when the optimal irrigation amount of the whole growth period was 4 095m3/hm2.

关 键 词：玉米 膜下滴灌 灌溉 

分 类 号：S513[农业科学—作物学]