一、选好品种一是选择经国家或省审定的品种(国审或冀审),二是选择正规种子经营单位的品种;三是要注意索要发票。同时要因地制宜选择品种,其中一点就是选择抗枯黄萎较好的品种,水肥条件好的高产地块选高产株型较松散的品种,一般地块选株型较紧凑的品种。二、施好肥料多年来我们只注意了氮肥和磷肥的施用,对钾肥施用较少,而棉花又是喜钾作物,缺少钾很容易造成棉花抗病能力降低、后期早衰、红叶茎 First, choose a good variety First, choose the national or provincial validation varieties (national trial or Ji review), the second is to choose the formal seed business unit varieties; the third is to pay attention to ask for an invoice. At the same time to select the appropriate local varieties, one of which is to choose better resistance to yellow-wilt better varieties of water and fertilizer conditions of high yielding block selection of high-yielding strains of more loose varieties, the general selection of plants more compact varieties. Second, good fertilizer Over the years we only pay attention to the application of nitrogen and phosphate fertilizer, potassium application less, and cotton is a hi potassium crops, lack of potassium can easily lead to reduced cotton resistance to disease, the late premature aging, stems and leaves