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关中灌区棉花成熟较晚,棉田复种小麦时,多数采用耪种,这样不能深耕施肥,小麦播种质量差;有的拔秆后整地种麦,但推迟了播种期,同样不利于小麦增产。同时不论耪种或拔秆后种麦,都要损伤棉铃,影响棉花产量和质量。为了寻求解决棉粮争时矛盾的耕作技术,进行了万株棉试验,以期在棉花丰产的前提下,提早成熟,为小麦创造良好的播种条件,从而达到麦棉双丰收。
Guanzhong irrigation area cotton maturity later, when the cotton field of multiple cropping of wheat, the majority of the species, so can not deep plowing and fertilizing, poor quality of wheat planting; some straw stubble after planting wheat, but postponed the sowing period, the same is not conducive to wheat yield. At the same time, regardless of the species or pull straw stalks, cotton bolls have to be damaged, affecting cotton yield and quality. In order to find a solution to the contradiction between cotton and grain farming techniques, conducted a million cotton trials, with a view to high-yielding cotton under the premise of premature, to create a good wheat sowing conditions, so as to achieve dual harvest wheat and cotton.