棉花新品种“石选14”的栽培措施初探

Preliminary Research on the Cultivated Measure of a New Variety of Cotton“Shixuan 14”

利用三因素二次回归正交旋转组合设计,对影响棉花新品种石选140皮棉产量的主要因(?)(?)(?)、密度、(?)(?)质量选行了初步研究,建立了石选1-i皮棉产量形成的三因素数学模型以及较高产的组合方案,明确了各因素的效应顺序为:追施氨量>播期>密度。

The main elements,time of planting, thickness, quantity of spreading Nitrogen effecting the yield of the new variety of cotton "shixuan 14" were researched primarily,three-elements,mathematics model produced from the yield of the cotton and the constitutional plan for higher yield were set up by applying the three-element,twice-return,active-cross-revolution-combination design. And the effect order for the elements is like this: quantity of spreading Nitrogen>time of planting>thickness.