棉花盛蕾至初花期化控可有效地塑造小个体。尤其盛蕾期化控使株宽大幅度变窄。按窄株宽相应定量缩小行距，使小个体能适时适度封行。在本试验中，适度封行的尺度是：行宽与株宽之差D（称邻行果枝相接差）恒定为18±1cm。这样的小个体、适群体同大个体、适群体比较。具有增单铃重、增单位面积铃数的优势，增产10％以上，达显著水平 Cotton flower bud early flowering can effectively control the formation of small individuals. In particular, Shenglei stage control greatly narrowed the plant width. According to the narrow plantar width corresponding quantitative narrow row spacing, so that small individuals can timely appropriate seal line. In this test, the scale of the appropriate seal is: the difference between the line width and the plant width D (called adjacent fruit branch phase difference) constant 18 ± 1cm. Such a small individual, suitable groups with large individuals, suitable groups comparison. With a single boll weight, the number of bells per unit area increased by more than 10%, reaching a significant level