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棉花的蕾、铃脱落是它的生育特性之一，是对不良条件反映的一种表现和对环境条件适应的一种自动生理调节过程，通过脱落来适应环境的变化，所以完全避免脱落是不可能的。棉花具有较强的自我调节机能，条件适宜时，可以很少脱落，譬如在田边地头，一棵单株棉花可以结几十个铃，
Cotton buds and beetles shedding are one of its fertility traits. They are an automatic physiological regulation process that reflects the bad conditions and adapts to the environmental conditions. By shedding to adapt to changes in the environment, it is not necessary to completely avoid shedding possible. Cotton has a strong self-regulating function, when conditions permit, it can rarely fall off, for example, in the Tanabe land, a single cotton can be tied dozens of bell,