套播夏玉米滴灌条件下的适宜水肥调配  

Suitable Combination of Water and Fertilizers for Interplanted Summer Corn under Drip Irrigation

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

机构地区：[1]水利部农田灌溉所,河南新乡453003 [2]中国农业大学,北京100083

出　　处：《灌溉排水》1999年第3期17-20,共4页Irrigation and Drainage

基　　金："九五"国家科技攻关项目

摘　　要：麦行间套播夏玉米，采用滴灌方式和适宜灌水量、分期追肥、水肥结合、氮磷肥适宜调配等有效技术措施，全生育期追施氮（折纯Ｎ）、磷（Ｐ２Ｏ５）肥量分别保持在１６８～１８６ｋｇ／ｈｍ ２ 和１３２～１５９ｋｇ／ｈｍ ２ 水平时，可获取９４５０ｋｇ／ｈｍ ２ 以上产量，水分生产效益达到１．９ｋｇ／ｍ ３ 以上。By adopting effective measures, such as drip irrigation, reasonable irrigation amount, fertilizing at special growing stages on needed, united application of water and fertilizers, suitable combinations of nitrogen(N) and phosphorus(P 2O 5), and applying N and P 2O 5 at rates of 168.0～186.0 kg/hm 2 and 132.0～159.0 kg/hm 2 respectively in entire corn season, yield of summer corn interplanted in fallow strips in winter wheat field has reached more than 9450.0 kg/hm 2, and water use efficiency over 1.9 kg/m 3. The effective measures can result in obvious effects of water saving and yield raising.

关 键 词：套播 玉米 滴灌 适宜水肥调配 小麦 

分 类 号：S275.6[农业科学—农业水土工程]