| 节水灌溉条件下冬小麦优化施肥研究 |
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| 引用本文： | 张岁岐,山仑.节水灌溉条件下冬小麦优化施肥研究[J].水土保持研究,1999,6(1):79-82. |
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| 作者姓名： | 张岁岐 山仑 |
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| 作者单位： | 中国科学院水利部水土保持研究所, 陕西, 杨陵, 712100 |
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| 摘 要： | 在东新大田生产条件下,就冬小麦只进行冬灌时的优化施肥问题进行了研究.结果发现由于东新土壤普遍缺N而富P,施用P肥无明显增产效果,低N下施P反而减产;而施N则具有明显节水增产效果.因此,在东新只灌一水(冬灌60mm)情况下,从发挥肥效和提高WUE的角度出发,施纯N150kg/hm2,N:P=2:1即可达到较优效果,过量NP肥施用无助于产量和WUE的提高.
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| 关 键 词： | 节水灌溉 冬小麦 优化施肥 |
| 修稿时间： | 1999-01-10 |
Study on Optimum Application of Winter Wheat under Water Saving Irrigation Condition |
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| Zhang Suiqi,Shan Lun.Study on Optimum Application of Winter Wheat under Water Saving Irrigation Condition[J].Research of Soil and Water Conservation,1999,6(1):79-82. |
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| Authors: | Zhang Suiqi Shan Lun |
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| Institution: | Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shanxi, 712100 |
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| Abstract: | The optimum application of winter wheat were studied under water saving irrigation in Dongxin village.The result showed that the effect of P application was not obvious,yield and WUE of winter wheat were reduced by P application under low N condition.But yield and WUE of winter wheat were increased significantly by N application because of deficient N and plentful P in soil.There for the effect of application of N 150 kg/hm2 and N:P=2:1 was optimum under water saving irrigation in Dongxin village. |
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| Keywords: | water saving irrigation winter wheat optimum application |
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