The optimum combination program of N, P, and K in the basic fertilizer on the cold type turf was studied by using three factors saturated optimum design and gray game decision method.

运用三因素饱和最优设计与灰色局势评价方法，通过盆栽试验，研究了适合于科尔沁沙地土壤的冷地型草坪基肥的氮、磷、钾营养元素的配比方案。

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For example, in 2009, backers of a new turf football field at Jonathan Dayton High School in Springfield, N.

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