]*>","")" /> Fertilization Model for Cotton under the Condition of Drip Irrigation and Plastic Mulch
Xinjiang Agricultural Sciences

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Fertilization Model for Cotton under the Condition of Drip Irrigation and Plastic Mulch

  • Received:2008-06-25 Revised:2008-06-25 Online:2008-06-25 Published:2008-06-25

棉花膜下滴灌施用氮肥模型研究

潘冬梅;吕新;李富先;郝炎炎;杨雷   

  1. 新疆兵团绿洲生态农业重点实验室,新疆石河子,832003;国家节水灌溉工程技术研究中心,新疆石河子,832000





摘要： 在灌漠土上设置田间试验,结果表明:棉花膜下滴灌施用氮肥(尿素),按苗期1次(5;),蕾期2次(25;),花铃期4次(70;)施入,可满足棉花生长需要.建立了籽棉(Y)与滴灌棉田N量(X)的肥料效应回归方程Y=3 271.82+14.46X-0.031 2X2(R=0.960 4*),Nmax=231.4 kg/hm2,Ymax=4 897.2 kg/hm2.