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Study on the Effect of Nitrogen, Phosphorus and Potassium Fertilizer Combined Use for the Yield of Soybean
Author(s): 
Pages: 131-134
Year: Issue:  2
Journal: JOURNAL OF QINGDAO AGRICULTURAL UNIVERSITY

Keyword:  大豆产量肥料;
Abstract: 为了探明大豆高产施肥中氮磷钾最佳配比用量,采用"3414"肥料试验设计,通过肥料效应函数拟合,研究了氮磷钾肥不同比例配合施用对大豆产量影响.结果表明:氮磷钾肥配施用能够显著提高大豆产量,各施肥处理产量较不施肥处理增产27.9%~43.2%,在本试验条件下,氮磷钾3种肥料对大豆产量的效应函数拟合性较好,可作为大豆施肥依据.综合3类7种肥料效应函数,大豆高产推荐施肥量为:N 51.0ks/hm20、P20s 127·1kg/hm2、K2O84.8kg/hm2,即肥料用量比例为:N:P2O2:K2O=1:2.49:1.66.
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