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1.叶面追肥.在前期追施底肥、蕾肥、铃肥的基础上,8月下旬发现脱肥的棉田,可用0.5公斤尿素对水500公斤进行叶面喷施1—2次.或用磷酸二氢钾0.1公斤对水50—60公斤,均匀喷于叶面,可防止后期早衰.2.拔草放垄.今年我省裸地棉田面积大,在增加铲趟次数的基础上,强调后期深趟,控制花铃期疯长,减少蕾铃脱落.8月下旬到9月上旬要突击拔除田间大草,放秋垄,促进棉铃早开絮.
1. Foliar topdressing In the early pursuit of base fertilizer, leprosy, bell fertilizer on the basis of late found in late August cotton fields, available 0.5 kg of urea on the water 500 kg foliar spray 1-2 times. 0.1 kg of potassium dihydrogen phosphate on the water 50-60 kg, evenly sprayed on the foliage, to prevent premature aging late .2 pull pull grass ridge .This year in our province, the area of bare cotton fields, increasing the number of times based on shovels, emphasizing The latter part of the deep trip to control the flower-growing period soaring, reducing the loss of the buds.In late August to early September to surprise removal of the field of grass, put autumn ridge, promote cotton boll early opening.