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关中棉区位于黄河流域棉区的西部边缘,棉花生育期的主要生态条件是春季少雨低温,伏旱,秋季阴雨,恰与棉花播种保苗、开花成铃、成熟吐絮三个关键时期相吻合,是限制该区棉花产量的主要因素。棉、麦轮作制是关中棉区长期来形成并相对稳定的耕作制度,解决好二者争季的矛盾,协调粮棉面积,是增加产量的基本方法之一。进入80年代以来,大量的试验研究和生
Guanzhong cotton is located in the western margin of the Yellow River cotton area, the main ecological conditions of cotton during the growth period is the lack of spring low temperature, summer drought, rainy autumn, just with cotton sowing seedlings, flowering bells, ripe boll three key period coincide, is the limit Cotton production in the area of the main factors. Cotton and wheat cropping system is a long-term and relatively stable farming system in the Guanzhong area. One of the basic methods to increase output is to solve the contradiction between the two seasons and to coordinate the area of grain and cotton. Since entering the 80’s, a large number of experimental research and students