膜孔灌夏玉米耗水特性和水分生产效率试验研究  

Study on the water consumption characteristics and water production efficiency of summer corn under film hole irrigation

作　　者：董玉云[1,2] 王宝成[1] 贾丽华 穆红文 费良军[5] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070 [2]甘肃省道路桥梁与地下工程重点实验室,甘肃兰州730070 [3]陕西省农业工程勘察设计院,陕西西安710068 [4]甘肃省电力设计院,甘肃兰州730050 [5]西安理工大学水资源研究所,陕西西安710048

出　　处：《干旱地区农业研究》2014年第5期7-11,66,共6页Agricultural Research in the Arid Areas

基　　金：国家自然科学基金项目(50579064);长江学者和创新团队发展计划(IRT 1139);兰州交通大学"青蓝"人才工程基金(QL-08-20A)

摘　　要：通过测坑试验，研究了膜孔灌灌水频率和灌水量对夏玉米耗水量、产量和水分生产效率产生的影响。结果表明，拔节期和抽穗期是玉米需水的关键阶段；相同灌水频率时，耗水量随灌水量的增加而增大，相同灌水量时，耗水强度随灌水频率的增加而增大；玉米产量与玉米生育期总耗水量之间呈良好的抛物线关系；膜孔灌夏玉米产量和水分生产效率较佳的需水量是2546～3410 m3·hm-2；灌水条件相同时，玉米膜孔灌比常规畦灌的耗水量减少6．2％，水分生产效率提高23．3％，增产15．9％。Through the field small plots experiment,has studied the impacts of irrigating frequency and irrigating volume to the water consumption,yield and water production efficiency of summer corn under film hole irrigation .The re-sults showed that：The jointing stage and heading stage were the key stage for the corn water requirement .The water con-sumption was increasing with added irrigating volume under the same irrigating frequency .The water consumption intensi-ty was added with increase of the irrigating frequency at the same irrigating quota .The corn yield with total water con-sumption showed a good parabolic relation .The corn water requirements with better yield and high water production effi-ciency were 2 546 m3·hm-2 to 3 410 m3·hm-2 by the film hole irrigation .Compared with the film hole irrigation to the common border irrigation,the water consumption was decreased 6 .2%,water production efficiency was increased 23 .3%,and yield was increased 15 .9%under same irrigation condition .

关 键 词：膜孔灌 夏玉米 耗水特性 水分生产效率 

分 类 号：S275.9[农业科学—农业水土工程]