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棉田化学除草是提高田间管理工效,促使棉苗健壮生长的重要措施,但必须掌握以下除草技术。一、土壤处理。在棉花播种后出苗前或营养钵移栽前施药,方法是:以禾本科杂草为主为棉田,用48%的氟乐灵乳油每亩100~150毫升,兑水25~30公斤,施于土表及时拌土,除草效果可达90%以上;也可用48%拉索乳油每亩150~200毫升,兑水30~40公斤喷于表土并及时用钉齿耙搂匀。禾本科杂草和阔叶杂草混生的棉田,可用40%地乐胺乳油
Cotton weed chemical weed control is to improve field management efficiency and promote the robust growth of cotton seedlings important measures, but we must master the following weeding technology. First, soil treatment. Pre-emergence after cotton sowing or nutrition bowls before transplanting application method is: weeds dominated for the cotton field, with 48% of trifluralin 100 to 150 ml per acre, watered 25 to 30 kg, Apply to the soil surface in time to mix soil, weeding effect of up to 90%; also available 48% corduroy 150 ~ 200 ml per acre, watered 30 ~ 40 kg sprayed on the topsoil and timely rake rake. Gramineous weeds and broadleaf weed mixed cotton fields, available 40% toxene cream