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棉花管理不当,中、后期常会出现徒长、蕾铃脱落、早衰或贪青晚熟等现象。为保证棉花稳健生长及其产量与品质,可采取以下五喷技术进行补救。 1.喷缩节安防徒长。对水肥条件较好,有徒长趋势的棉田,可喷缩节安。每亩用缩节安2—3克,兑水20—25公斤,在棉花初花期向棉株上部喷洒。一般只喷一次,如第一次用药后棉株又有旺长现象,可喷第二次,用药量应比第一次少些。 2.喷磷酸二氢钾可保蕾铃,促早熟。磷、钾可协调棉花营养生长和生殖生长的平衡,使棉株壮而不旺,成铃率提高,铃重增加,种子饱满,提早成
Improper cotton management, often appear in the late leggy, Lei Ling off, premature aging or late greyhound and so on. In order to ensure the steady growth of cotton and its yield and quality, can take the following five spray technology to remedy. 1. Sprinkler section security defender long. On the water and fertilizer conditions are good, there is the trend of the growth of cotton fields, spray safety. Reduced acre 2-3 grams per acre, watered 20-25 kilograms, in the first flowering of cotton to the cotton plant sprayed. Generally only spray once, such as the first cotton seedlings after another long phenomenon, can spray the second time, the dosage should be less than the first time. 2 spray potassium dihydrogen phosphate can protect the bud, early premature. Phosphorus and potassium can coordinate the balance of vegetative and reproductive growth of cotton, make cotton grow strong but not prosperous, the boll rate increases, the boll weight increases, the seed is full,