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针对江西丘陵红壤棉区特定的生态条件和生产水平,改春棉为夏棉、改麦棉套作为连作、改预留棉行的小麦条播为满幅撒播,经5年单因子、多因子试验和3年的小面积示范,证实小麦———高密度夏棉双熟连作切实可行。皮棉产量:可灌棉地1200kg·hm-2、旱地900kg·hm-2,增产30%以上。小麦41175kg·hm-2,增产122%。纯收益增加795576元·hm-2。能获麦棉双丰收,可缓解粮棉争地矛盾,有利我省棉花生产的稳步发展,具有较好的经济效益和社会效益。
In view of the specific ecological conditions and production level of red soil cotton area in Jiangxi Province, spring cotton was replaced by summer cotton and wheat straw as continuous cropping, 3 years of small-area demonstration confirmed that wheat - high-density summer paddy double cropping feasible. Lint yield: Irrigated cotton 1200kg · hm-2, dry land 900kg · hm-2, yield more than 30%. Wheat 4117 5kg · hm-2, an increase of 122%. Net income increased 7955.76 yuan · hm-2. Can be wheat bumper double harvest, can ease the conflict between grain and cotton, the province’s cotton production is conducive to the steady development, with good economic and social benefits.