In the cotton harvest time, sampling to analyze, according to the subtraction counts nitrogen fertilizer utilization is 48.58%~ 53.15% in the cotton with drip irrigation, utilization of phosphorus is 18.73%~ 24.84%.

  • 收获期棉株取样化验分析,根据差减法求得滴灌棉花氮肥利用率为48.58%~53.15%,磷肥利用率为18.73%~24.84%。

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