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棉花的落蕾落铃问题,是棉花增产上一个很重要的问题。关于蕾铃脱落的原因,除对高温、干旱、雨水过多、光线不足等外界因素以外,对内在的生理原因研究,国内已有很多报道。金成忠等(1956)的研究证明了有机养料与脱落的密切关系。另外,亦有报道提出,棉株内由于养料供应、分配不平衡而造成的脱落,是与植株各器官间对养料的竞争有关。在早期的一些工作中,曾观察到顶端枝条所获得的氮比侧枝多,年幼的
Falling cotton bolls fall issue, cotton yield increase is a very important issue. On the reasons for the fall of the bell, in addition to the high temperature, drought, excessive rainfall, light and other external factors, the internal physiological reasons, there have been many reports. The research of Jin Chengzhong et al. (1956) proved the close relationship between organic nourishment and shedding. In addition, it has also been reported that cotton plants fall off due to the imbalance of nutrient supply and distribution, which is related to the competition of nutrients among various organs of plants. In earlier work, it has been observed that the top branch obtained more nitrogen than the collateral, younger