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棉花到夏季因天气炎热、多雨或干旱高温,导致大批早、中期蕾铃脱落,大幅度减产。据田间调查,脱落蕾铃有多种因素,应采取相应的有效措施,对症进行防治。 一、多雨脱落。夏季雨量大,棉株含水超量,极易徒长,常使棉株高,蕾铃稀又少。有些低洼地积水泡根,土壤失去通透性,营养滞供,棉根虚胖、水肿,
Cotton to the summer because of the hot weather, rainy or dry heat, leading to a large number of early, mid-fall buds, a substantial cut. According to field surveys, there are many factors that fall off the bell, should take appropriate and effective measures to prevent and treat symptomatic. First, rain off. Large amount of rainfall in the summer, cotton plants excess water, very easy to be extraordinarily long, often make cotton plant height, bud bolls and less. Some low-lying area blisters, soil loss of permeability, nutrient stagnation, cotton root puffiness, edema,