棉铃脱落的原因很多,主要是因外界环境与棉株生理过程失去平衡作用所引起的。因为棉株发育过程中对外界环境比较敏感,稍有不适合棉株的需要,就会引起棉株生理上不协调以致脱落。如养料、水分供应不足,以致棉叶的吸收大于蕾铃的,则脱落增加;或氮肥及水分过多,均会引起脱落。我们确定某地区的栽培技术,是根据这一地区自 There are many reasons for cotton boll loss, mainly due to the external environment and cotton plant physiological processes caused by the loss of balance. Because cotton plant during development is more sensitive to the external environment, a little not suitable for the needs of cotton plants, cotton plants will cause physiological dissonance and fall off. Such as nourishment, insufficient water supply, so that the absorption of cotton leaves larger than the bud, the shedding increases; or nitrogen fertilizer and excessive water will cause shedding. We determine the cultivation techniques in a particular area, based on the area itself