我县棉田多系春播,也有少量麦棉套种,实行麦棉两熟,可以提高复种指数,缓和粮棉争地矛盾,做到粮棉双丰收。我们于1978至1979年连续两年进行了棉花夏直播的品种比较试验和栽培技术研究,初步摸索出了一些规律,现总结于后,供参考。通过1978年品种比较试验,我们认识到,只要选择早熟性、丰产性能好、品质好的品种,实行棉花夏播是可行的。1979年从商丘地区农科所引进了早熟性、丰产性和品质都较好的773—32品系,进行栽培试验。面积1.5亩,前茬为尺八大麦,亩产450斤,于 Cotton fields in our county and more spring sowing, there are a small amount of wheat-cotton intercropping, the implementation of wheat and cotton two crops, can improve the multiple cropping index, ease the conflict between grain and cotton, grain and cotton double harvest. In 1978 and 1979, we carried out a comparative study of varieties of cotton on summer seeding and cultivation techniques, and initially found out some laws and summarized them for reference later. Through 1978 varieties of comparative experiments, we recognize that as long as the choice of early maturity, high yield performance, good quality varieties, the implementation of summer sowing cotton is feasible. In 1979, Shangqiu area agricultural introduced by the early maturity, high yield and quality are better 773-32 lines, cultivation experiments. Area of ​​1.5 acres, the former crop of eight barley, 450 kg per mu, in