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采用盆栽试验研究了混料设计中的单形重心设计在氮、磷、钾配比上的应用。测定了冬小麦分蘖数、地上部鲜物质质量、干物质质量、植株全氮、全磷、全钾含量以及土壤有效氮、磷、钾含量 ,配置了各个项目的回归方程 ,求出相同产量下的氮、磷、钾肥料配比 ,再依各配比值绘制等值线。根据等值线的变化确定了肥料配比变化对作物产量的影响 ,初步验证了混料设计在肥料配比研究中的可行性
The pot experiment was carried out to study the application of single center of gravity design in mixing design to the proportion of nitrogen, phosphorus and potassium. The tiller number, the fresh matter mass, the dry matter mass, the plant total nitrogen, the total phosphorus, the total potassium content and the soil available nitrogen, phosphorus and potassium contents of winter wheat were measured and the regression equation of each item was set. Nitrogen, phosphorus and potassium fertilizer ratio, and then draw the ratio of the value of the contour. According to the change of contour line, the influence of fertilizer ratio on crop yield was determined, and the feasibility of mixture design in the research of fertilizer proportion was preliminarily verified