basic fertilizer

The Grey-Regression Optimum Analysis of Basic Fertilizer Combination Program on the Cold Type Turf

冷地型草坪基肥营养配比方案的灰色-回归最优设计

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。

The result indicated that basic fertilizer and tillering fertilizer pro ratio 3 ∶ 3 can achieve the best result which is many tiller and Glumales, high yield and thousand kerner weight.

结果表明，施用化肥时，基、蘖肥比例3∶3施法分蘖多、颖花多、结实率和千粒重高、产量高，效果最好。