吐鲁番盆地作为一个古老的植棉区 ,有着特殊的光热资源 ,全年≥ 1 0℃积温为 550 0℃ ,无霜期长达 2 2 4天 ,这些条件为棉花的生长发育提供了有利条件 ,全年有效结铃期达 90天 ,单株结蕾数超过 60个。但其不利因素是酷暑高温造成大量蕾铃脱落 ,5～ 8月最高气温超过 35℃的天数 As an ancient cotton-growing area, the Turpan Basin has special light and heat resources. The annual accumulated temperature of ≥ 10 ℃ is 550 ℃ and the frost-free period is 224 days. These conditions provide favorable conditions for the growth and development of cotton. The annual effective ringing period of 90 days, more than 60 single plant buds. However, the unfavorable factor is the number of days that a lot of buds fall off under the heat of summer and the maximum temperature exceeds 35 ° C from May to August