棉花从棉铃开始成熟吐絮到采收称为吐絮期。一般8月下旬或9月下旬开始吐絮,到10月中下旬收获完成,历时60天左右。此期田间管理的主要任务:促早熟,防早衰,防贪青晚熟。做到保根、保叶、保铃,实现增结铃、增铃重、增衣分、防烂铃。 Cotton boll from the beginning of mature boll to harvest known as boll opening period. Generally late August or late September began to vomit, harvest completed in mid to late in late, which lasted 60 days. The main task of this field management: promote early maturity, premature senility, anti-greedy Late Maturity. To ensure the root, Paul leaves, Paul bell, to increase bolus, bolus by weight, add clothing points, prevent rotten bell.