蕾花期稳长是棉花高产的关键。早培能促使棉苗早现蕾、早开花,延长开花期。如蕾花期疯长,虽能早开花,但座不住桃,使早发转化为迟熟,缩短有效结铃期,推迟集中结桃时间,导致迟熟减产。在大面积生产上,由于土壤潜在肥力、人为措施和天气情况的不同, Stable bud stage is the key to high yield of cotton. Early training can promote cotton buds early budding, early flowering, to extend the flowering period. Such as bud flower period soaring, although early flowering, but could not stand Peach, so early hair into late maturity, shorten the effective period of bolls, delay the focus on the peach time, leading to late maturity and yield reduction. In large-scale production, due to potential soil fertility, man-made measures and weather conditions are different,