三膜覆盖麦棉双高产栽培技术探讨＊许尚仁金万才崔广德①王艳民河南商丘县棉办４５２１７０商丘县是全国棉花生产百强县之一。但自１９８２年以来，由于种植制度的改革，麦棉受“三晚三低”（春季低温，棉苗晚发；棉花贪青晚熟，造成劣质低产；由于棉花晚发，导致小麦晚播... Three Membrane Covering Wheat Double High Yield Cultivation Techniques Xu Shangren Jin Wancai Cui Guangde ① Wang Yanmin Henan Qiuqian Cotton Miao 452170 Shangqiu County is one of the top 100 cotton counties in China. However, since 1982, thanks to the reform of the planting system, wheat straw has been hit by “three nights and three lows” (low temperature in spring and late emergence of cotton seedling; late blooming and late maturing of cotton, resulting in poor quality and low yield; .