亩铃数、铃重和衣分率是构成棉花产量的三个因素。衣分率较为稳定,而亩铃数和铃重则变幅较大。我县是靠亩铃数和铃重的增加,来提高棉花产量和品质的。适宜的群体和株铃的提高,是增加亩铃数的关键。成铃率的高低受环境因子的影响较大,但也有 The number of bells per acre, the weight of bolls and the percentage of clothes are the three factors that make up cotton yield. The rate of clothes was stable, while the number of bells and the weight of bolls varied greatly. My county is by the number of bell and boll weight increase, to increase cotton yield and quality. The appropriate group and the bell to improve, is to increase the number of acres of bell key. The level of boll rate is more affected by environmental factors, but there are also