秸秆覆盖对不同水分条件下冬小麦-夏玉米农田蒸散规律及调控效应研究

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为探究黄淮海区冬小麦-夏玉米两熟制农田蒸散规律及调控效应,以冬小麦矮抗58和夏玉米郑单958为供试材料,通过防雨棚测坑试验(主区为秸秆覆盖处理(秸秆全量覆盖和秸秆不覆盖),副区为水分处理(冬小麦控水下限分别为田间持水量的40%,50%,60%,70%;夏玉米控水下限为田间持水量的50%,60%,70%,80%),分别用W1、W2、W3、W4表示)结合大型称重式蒸渗仪研究了秸秆覆盖对不同水分条件下冬小麦-夏玉米农田蒸散规律的调控效应,得出适宜该区水分高效利用的栽培模式。主要结果如下:1.冬小麦-夏玉米
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