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中国农学通报 ›› 2004, Vol. 20 ›› Issue (2): 139-139.

所属专题: 玉米 烟草种植与生产

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糯玉米优化施肥研究

张传珂   

  • 出版日期:2004-04-05 发布日期:2004-04-05

Study on optimum application of Glutinous maize

Zhang Chuan Ke   

  • Online:2004-04-05 Published:2004-04-05

摘要: 采用3因子5水平最优设计,建立了N、P、K施肥与糯玉米产量、利润的数学模型。由模型得知:⑴ 3个因子对产量、利润的影响顺序氮肥﹥磷肥﹥钾肥;⑵ 产量﹥950㎏/667㎡、利润﹥1000元/667㎡的优化施肥方案为施N 6. 98~10.35㎏、P2O5 3.69~4.95㎏、K2O 5.81~8.22㎏。

Abstract: The authors used the mixed design method of three factors each having five levels , established the mathematical model of the fertilizer of N, P and K and the yield and profit of Glutinous maize. According to the mathematical model .(1) the effect of the fertilizer of N to the yield and profit is the most remarkable, P secondly and K thirdly.(2) The design of optimum application is N 6. 98~10.35㎏、P2O5 3.69~4.95㎏、K2O 5.81~8.22㎏, which can gain the yield more than 950㎏/667㎡and the profit more than 1000元/667㎡.