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春棉改夏棉,是棉花种植制度的重大改革,种植夏棉既可提高复种指数,充分利用自然资源和有限的耕地,缓解粮棉争地矛盾,也给棉农带来明显收益。延津县地处黄河故道,宜于种棉。该县从1978年开始推广种植夏棉以来,取得了显著效益。近年来该县棉田面积逐年扩大,1989年全县共种植夏棉22万亩,总产达1320万公斤、平均亩产60公斤,最高的达到100公斤。与此同时全县还增产小麦6380万公斤。同过去种植春棉相比,每亩可净增产值
Spring cotton to change summer cotton, cotton planting system is a major reform, planting summer cotton can improve the multiple cropping index, make full use of natural resources and limited arable land to ease the conflict between grain and cotton, but also bring significant benefits to farmers. Yanjin County is located in the old course of the Yellow River, suitable for cotton. Since 1978, the county has promoted the cultivation of summer cotton, and achieved significant benefits. In recent years, the area of cotton fields in this county has been expanding year by year. In 1989, a total of 22 million mu of summer cotton were planted in the county with a total output of 13.2 million kilograms, an average yield of 60 kilograms and a maximum of 100 kilograms. At the same time the county also increased wheat 63.8 million kilograms. Compared with the past planting spring cotton, net production value per acre