【摘要】 本文综合报导了1982～1985年在简阳和井研县两个试点的研究结果。采用六种不同粮棉种植方式的产量、皮棉品质、经济效益以及土壤肥力、气候因素、茬口街接和田间管理等项指标来评价它们在生产上的使用价值。就目前我省棉区的社会和生产条件而言,应以麦棉套作为主,其次是大麦棉花连作,小麦或油菜与棉花连作的晚茬棉田为辅,保持早茬棉田占总棉田的90％以上,并保证有利于棉花早熟、优质、高产、稳产和粮食作物的持续增产。更多还原

【Abstract】 This paper comprehensively reported the data in the field experiments of six double-cropping patterns dealing with grain crops and cotton during 1982-1985 in Jianyang and Jingyan counties,Sichuan. The practical values of the patterns in production were evaluated with the indices of yield, economic benifit, linking of crops in rotation, fertility of soil, field management etc.The results showed that, in the case of present social and productive conditions in Sichuan cotton belt, the interplanting of cotton among wheat rows should be used as a primary pattern, the continuous cropping of cotton after barley as a secondary one, while the late continuous cropping of cotton after wheat or rape just as the supplementary, keeping the ratio of the area of early-planting cotton over 90% in the total cotton-growing fields. So as to get the goal in cotton production involving the early maturing, the fiber mostly being good quality, the yield of cotton being high and stable, and accelerating the output of grain crops to increase in succesion.更多还原