新疆库尔勒垦区,位于天山南麓,塔里木盆地东北边缘的山前洪积——冲积扇地带,属典型的大陆性气候,光照充足,热量充沛,平均≥10℃的活动积温4276.5度·日,年平均气温11.4℃,无霜期190天左右,大气透明度好,降雨少,病害轻,较适合长绒棉生产。但由于春天风沙多,气候干燥,蒸发量大,棉花播种期间往往由于土壤水分不足,造成缺苗断垅,保全苗比较困难;棉花播种后,气温较低,温度变幅较大,发苗迟,难以获得壮苗,棉花生长的后期,秋温下降较快,缩短了棉花的有效生长期,霜前花率低。因此,对提高长绒棉的产量和改善 Xinjiang Korla reclamation area is located in the piedmont alluvial-alluvial fan zone in the south of Tianshan Mountains and the northeastern margin of Tarim Basin. It is a typical continental climate with abundant sunlight and abundant heat. The average accumulated temperature of ≥10 ℃ is 4276.5 degrees Celsius The average temperature of 11.4 ℃, frost-free period of about 190 days, the atmosphere is good transparency, less rainfall, disease light, more suitable for long staple cotton production. However, due to the spring windy sand, dry climate, large evaporation, often due to lack of soil moisture during sowing cotton, resulting in lack of seedlings cut off, more difficult to protect seedlings; cotton sowing, the temperature is low, the temperature changes larger, hair late , Difficult to obtain strong seedlings, the late growth of cotton, autumnal temperature decreased rapidly, shorten the effective growth of cotton, flowers before frost rate. Therefore, to improve the yield and improve long-staple cotton