滴灌玉米水肥耦合效应的田间试验研究  

Coupling Effects of Water and Fertilizer on Corn Yield With Drip Irrigation

作　　者：黄冠华[1] 冯绍元[1] 詹卫华[1] 王广兴 刘祖贵[2] 吴海卿[2] 

机构地区：[1]中国农业大学水利与土木工程学院 [2]中国农业科学院

出　　处：《中国农业大学学报》1999年第6期48-52,共5页Journal of China Agricultural University

基　　金：国家教委回国人员基金;国家"九五"科技攻关项目

摘　　要：对滴灌条件下麦行间套播的夏玉米水肥耦合效应进行了田间试验。结果表明，套播夏玉米全生育期耗水量保持在4800m3·hm－2，施氮（折纯N）、磷（P2O5）肥量分别保持在175kg·hm－2和145kg·hm-2水平时，可获取9450kg·hm－2以上产量，水生产效益超过1．9kg·m－2，显示出较好的节水增收效益。Field experiments on the coupling effect of water and fertilizer on the intercrop of summer corn with drip irrigation have been conducted. The results showed that there are 4 800 m3 water per hectare of summer corn can be consumed, and applylng N and P2O5 at rates of 175 kg ·hmu2 and 145 kg· hma-2 respectively in entire corn season, yield of summer corn has reached rnore than 9 450 kg· hm-2, and WUE (water use efficiency) over 1. 9 kg·m-3. The effective measures can results in obvious effects of water saving and yield-ralsing.

关 键 词：玉米 滴灌 水肥耦合 产量 

分 类 号：S513.062[农业科学—作物学] S513.071