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在棉花大面积生产中,由于肥水供应不当而造成棉花长势过旺,花蕾和幼铃大量脱落,影响产量。对生长过旺的棉花合理使用健壮素,能有效地调控棉花生育,使株型紧凑,协调营养生长与生殖生长关系,减少蕾铃脱落,增加铃数和铃重,直至提高产量。我们对生长偏旺的棉花,于始花期每亩喷健壮素纯药3克(上海农药所研制,常熟莫城农药厂生产),现将观察结果讨论分析于下。一、控制棉花主茎和果枝伸长喷药的棉花,株高生长明显受抑,药后10、20、30天内,日生长量分别为1.50、0.58、0.73厘米,比对照分别减0.94、0.78、0.20厘米,控制效果分别为38.7%、57.4%(达1%
In large-scale cotton production, due to improper supply of fertilizer and water caused by excessive cotton growth, flower buds and young bell off a lot, affecting the yield. Reasonable use of healthy vitamins on over-grown cotton can effectively control cotton growth, make the plant compact, coordinate the relationship between vegetative growth and reproductive growth, reduce the shedding of the buds, increase the number of bolls and the boll weight until the yield is increased. We are on the growth of the Mongolian cotton, at the beginning of florescence Jian Zhuang Su pure pure drug 3 grams (developed by Shanghai Pesticide, Changshu Mo City Pesticide Factory production), the observations are discussed below. First, control cotton main stem and fruiting branch elongation of spraying cotton, plant height growth was significantly inhibited, 10,20,30 days after treatment, the daily growth were 1.50,0.58,0.73 cm, respectively, compared with the control minus 0.94,0.78 , 0.20 cm, the control effects were 38.7%, 57.4% (up to 1%