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棉花从7月上旬进入花期,到8月底、9月初吐絮为止的一段时期为花铃期,历时50~60天。花铃期是棉花生长发育最旺盛的时期,也是决定产量的关键时期。这时期棉花的营养生长与生殖生长、个体与群体、棉花生育与环境条件等各种矛盾错综复杂。要获得棉花高产,需要了解该时期的生育规律和田间征象,根据田间征象确定相应的管理措施,以达到带桃入伏、伏桃满腰、秋桃盖顶,实现丰产丰收。
Cotton flowering period from early July, until the end of August, early September floc floc up until the period of flowering period, which lasted 50 to 60 days. Flowering period is the most vigorous cotton growth period, but also determine the key period of yield. During this period, various contradictions such as vegetative and reproductive growth of cotton, individuals and groups, cotton growth and environmental conditions were complicated. In order to obtain high yield of cotton, we need to understand the fertility rule and field signs during this period and determine the corresponding management measures according to the field signs so as to bring the peach into the fall, the vase full waist and the autumn peach topping to achieve high yield and good harvest.