]*>","")" /> Study on Water Requirement and Water Use Efficiency of Mulched-corn for Seed Water with Drip Irrigation
Xinjiang Agricultural Sciences

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Study on Water Requirement and Water Use Efficiency of Mulched-corn for Seed Water with Drip Irrigation

ZHENG Li-jun;JA Biao;HE Hai-bing;LIN Feng;JIANG Gui-ying;MA Fu-yu   

  • Received:2013-11-25 Revised:2013-11-25 Online:2013-11-25 Published:2013-11-25

膜下滴灌制种玉米需水量与需水规律的研究

郑利均;贾彪;何海兵;林凤;蒋桂英;马富裕   

  1. 石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子,832003





摘要： [目的]定位监测高产膜下滴灌制种玉米田间土壤水分动态变化,为膜下滴灌制种玉米拔节后水分管理提供理论依据.[方法]采用时域反射仪(TDR)对膜下滴灌制种玉米田间土壤水分动态变化连续监测并分析干物质的积累情况,运用水分平衡法计算膜下滴灌制种玉米各生育时期耗水量和水分生产率.[结果]拔节期至灌浆期45d左右是玉米耗水高峰期,日平均耗水强度为6.4 mm;灌浆期日耗水强度为3.2 mm.[结论]制种玉米拔节后根区的土壤体积含水量总是维持在23.5;～31.4;(田间持水量的60;～80;).