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通过在湖北省内布点进行棉花施用专用缓控释肥试验表明,棉花施缓控释肥具有显著的增产、省工效果。棉苗移栽到大田后一次开沟深施入缓释肥1 200 kg/hm2+盛花期追尿素75~120 kg/hm2的方法,能有效促进棉株生长,加快果枝、果节发育,增加成铃和减少蕾铃脱落,其子棉单产高达3 482kg/hm2,较常规施肥处理增产12%以上,并实现节省劳动用工15个/hm2以上。
Through the distribution of cotton in Hubei Province dedicated slow-release fertilizer application experiments show that cotton slow-release fertilizer has a significant increase in production and labor-saving effect. Cotton seedlings transplanted to the field after a deep ditch into the slow-release fertilizer 1 200 kg / hm2 full bloom flowering urea 75 ~ 120 kg / hm2 method can effectively promote the cotton plant growth and accelerate fruiting branches, fruit development, increase into Bell and reduce the fall off of the bud, its sub-cotton yield up to 3 482kg / hm2, compared with conventional fertilization treatment yield more than 12%, and to save labor and labor more than 15 / hm2.