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【目的】研究膜下滴灌灌水量、施氮量、密度耦合效应对杂交棉生长的影响。【方法】通过田间试验,设置8个水、氮、密度处理组合研究不同处理对棉花生长和产量的影响。【结果】灌水量对棉花生产影响最大,其次是施氮量和密度,高的水、氮条件下棉花干重和产量都有所增加,但收获率有很明显的下降。【结论】水氮增加以后,棉花生长旺盛,但容易旺长,因此在生产中增加水肥投入获高产要慎重。
【Objective】 The effects of drip irrigation under irrigation under mulch, nitrogen application rate and density on the growth of hybrid cotton were studied. 【Method】 Through field experiments, eight water, nitrogen and density treatments were set up to study the effects of different treatments on cotton growth and yield. 【Result】 The results showed that the amount of irrigation had the greatest effect on cotton production, followed by the rate of nitrogen application and density. Under high water and nitrogen conditions, the dry weight and yield of cotton increased, but the yield decreased obviously. 【Conclusion】 After the increase of water and nitrogen, the cotton grows vigorously, but it is easy to bloom. Therefore, it is prudent to increase the input of water and fertilizer in the production.