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棉花各生育阶段栽培技术关键 (一)、播前准备阶段时期:四月十五日以前。主攻目标;打好基础措施内容:精选棉种,精细整地,施好基肥,三沟配套。措施要求和方法: 1.精选棉种。选用良种,逐步实现“一县一种”,要确定良种场培育原种,提纯复壮。枯、黄萎病重病区,如无轮作条件,可试种抗病品种。种子处理,要“过三关”。晒种、粒选和种子消毒,提高种子纯度和质量,增强发芽、出苗和抗病能力。
The key to the cultivation technology of cotton in each growth stage (a), the stage of preparation before sowing: before April 15. The main target; lay the foundation of measures Content: selection of cotton seed, fine preparation, Shi good base fertilizer, three ditch matching. Measures and methods: 1. Featured cotton seed. Selection of elite, and gradually realize “a county a”, to determine the breeding seed breeding elite, purification and rejuvenation. Withered, Verticillium wilt, if no rotation conditions, can test the disease-resistant varieties. Seed treatment, to “over three off.” Sun species, grain selection and seed disinfection, improve seed purity and quality, enhance germination, emergence and disease resistance.