棉花的皮棉产量,是由铃数、铃重和衣分率三因素构成。其中,基础是铃数,关键是铃重。从我县近年“三桃”比例看,影响单位面积铃数和铃重的,主要是秋桃。多年的生产实践证明,哪年秋桃比例大和铃重高,哪年棉花产量就比较高。对于地处赣北丘陵地区的瑞昌,争秋桃既有潜力,也是优势。更是近期内提高棉花单产的有效途径。这是因为: Cotton lint yield, is the number of bell, boll weight and clothing fraction of three factors. Among them, the basis is the number of bell, the key is bell weight. From my county in recent years, “three peach” ratio, the number of bells and bolls weight per unit area, mainly autumn. Years of production practice has proved that the proportion of autumn peach and boll weight, which year cotton yield is relatively high. Ruichang is located in the hilly areas of northern Jiangxi Province, fight autumn has both potential and advantage. It is an effective way to increase cotton yield in the near future. This is because: