棉花化控的增产效果及其应用

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我市棉花进入营期正值梅雨季节,棉苗营养生长旺盛,历年疯长面积占全市棉田的30%左右。大面积发展薄膜育苗后,棉株到盛蕾期,根系进入生长高峰期,遇到梅雨,肥水碰头,使早发棉株早蕾座不住早铃,成为我市移栽棉难以发挥增产优势的一大难关。1978~1981年,在总结经验基础上,进 The city’s cotton into the camp is a time when the rainy season, cotton seedlings vegetative growth over the years soaring area of ​​about 30% of the city’s cotton fields. Large area development of film nursery, the cotton plant to Shenglei period, the root system to enter the peak growth period, met the rainy season, fertilizer to meet, so early cotton plant early Lei seat can not be early bell, become the city transplanting cotton is difficult to play a yield advantage A big difficulty. From 1978 to 1981, based on the sum of experience, into
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