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一、越冬前管理1、抓紧施用基肥。基肥施用好不好,对下年春季葡萄的发芽、花序形成、坐果等都有较大影响。基肥应以腐熟的农家有机肥为主,加施少量磷钾肥。同时还能增强树体的抗寒能力。为了防治葡萄霜霉病,褐斑病等,越冬前要喷洒80%霜脲氰2500倍液+70%甲基硫菌灵600倍液,结合防病加磷酸二氢钾300倍液,喷施农药时必须加入适量新高脂膜提高药效达300%以上,减少农药喷洒次数、节省农药。不要喷氮肥以免引起徒长。2、合理冬剪。应在自然落果半个月即时开
First, before the winter management 1, pay close attention to the application of basal fertilizer. Basal fertilizer application is good, the next spring grapes germination, inflorescence formation, such as fruit have a greater impact. Basal fertilizer should be the main farm organic fertilizer, plus a small amount of phosphorus and potassium fertilizer. At the same time can also enhance the ability of cold-resistant trees. In order to prevent grape downy mildew, brown spot disease, before winter to spray 80% Cymoxanil 2500 times + 70% thiophanate-methyl 600 times, combined with disease prevention plus potassium dihydrogen phosphate 300 times, spraying Pesticides must be added to the amount of new high-fat film to improve the efficacy of up to 300%, reduce the number of pesticides spray, save pesticides. Do not spray nitrogen fertilizer to avoid leggy growth. 2, a reasonable winter cut. Should be half a month in a natural fall immediately opened