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棉花蕾铃脱落的原因何在根据山西省各地调查试验,棉花蕾铃脱落,旱地比水地多;少数水肥充足的棉田棉株高大,相互遮荫的,脱落也多,历年7、8月间雨多时脱落的多,雨水较少的年份脱落的少;伏天高温的时候脱落的多。这是什么原因?我们认为主要是水分养分失调大气中的温湿度失调所致,旱地由于土壤中缺水造成棉花吸收水分养分困难,因此植株生长矮小结铃不多,而肥力充足(特别是氮肥过多),水足的条件下,棉棵贪长,株高叶茂,荫蔽严重,一方面妨碍了中、下部果枝的光合作用,影响了蕾铃的营养,另方面在炎热的夏天由于株间温湿度大,造成植物生理上的活动不良。同时棉棵上部顶芽消耗的养分加多,相应的蕾铃的营养要
According to the investigation and test in different parts of Shanxi Province, the cotton budles fall off and the dry land is more than that of the water land. A few cotton plants with abundant water and fertilizer are tall, shady and fall off each other. Rain in July and August More often shedding more, fewer years of less rain shedding less; V days when the temperature off more. What is the reason? We think that the main reason is the imbalance of moisture and moisture in the atmosphere due to the temperature and humidity imbalance caused by drought in the soil due to water shortage in the soil to absorb moisture and nutrients of cotton, so plant growth short boll bellows, and fertility (especially nitrogen Too much), water conditions, the cotton trees greedy, tall leaves, shade serious, on the one hand, hinder the middle and lower branches of the photosynthesis, affecting the nutrition buds, on the other hand in the hot summer due to the temperature Humidity, resulting in poor physiological activity of plants. At the same time cotton top buds consume more nutrition at the top of the bud, the corresponding bud to the nutrition