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棉花从开花到棉铃开始吐絮,称为花铃期。这个时期,仍然是营养生长与生殖生长并进时期,但逐渐由营养生长转为以生殖生长为主,这时,棉株生长发育最旺盛。既要搭丰产架子,又要大量现芮、开花、结铃,需水需肥最多,积累的干物质也最多,是形成产量的关键时期。在管理上的主攻方向是:促控结合,控制徒长,防止早衰。既要
Cotton flowering from cotton boll to start flocculent, known as the flowering period. During this period, vegetative and reproductive growth remained the same period, but gradually shifted from vegetative growth to reproductive growth. At this time, cotton plants grew and thrived. It is necessary to take a high yield shelves, but also a large number of current Rui, flowering, ringing bell, water needs up to fertilizer, the accumulation of dry matter is also the most, is the formation of a critical period of production. In the management of the main direction is: to promote control, control leggy, to prevent premature aging. Necessary