黄淮海棉区传统植棉为单作一熟,80年代后发展了麦棉两熟制。近年来,一些地区在麦棉套种后棉田间作秋粮作物。为了发展粮棉多熟制的适宜途径及进一步提高粮棉产量的潜力,1987～1988年,我们在本所农场对棉田几种不同熟制作物的生产力进行了研究,现报道如下。一、材料和方法试验以麦棉套后间花生,麦棉套后间大 Hualian sponge area of ​​traditional cotton as a single for a ripe, 80 years after the development of wheat and cotton two cooked system. In recent years, in some areas, cotton crops have been planted in cotton fields after wheat-cotton intercropping. In 1987 and 1988, we studied the productivity of several different kinds of cooked crops in our cotton field from 1987 to 1988 in order to develop suitable ways to improve the yield of grain and cotton and to increase the yield of grain and cotton. First, the material and methods to test the cotton cover after the peanut, cotton cover after a large