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采用三元二次通用回归旋转组合设计,研究了密度、施氮、施钾肥与玉米新品种东315产量之间的关系,建立了数学模型,通过分析寻优得出639.1 kg/667 m2以上产量水平的农艺措施组合方案。在当前生产条件下,要获得高产,保证玉米新品种东315的密度是关键,注重施氮肥,配合施钾肥可以达到投资少、产量高、经济效益显著的目标。
The relationship between density, N and K fertilization and the yield of new maize variety East 315 was studied by using the ternary quadratic universal regression rotation combination design. The mathematic model was established, and the yield of 639.1 kg / 667 m2 was obtained through the analysis Horizontal agronomy measures portfolio. Under the current production conditions, to achieve high yield, it is the key to ensure the density of east maize new variety 315. With the emphasis on applying nitrogen fertilizer, with the application of potassium fertilizer, the goal of low investment, high output and significant economic benefit can be achieved.