1.適(shi)時(shi)分(fen)批(pi)采(cai)摘(zhai),葡(pu)萄(tao)的(de)品(pin)種(zhong)不(bu)同(tong),成(cheng)熟(shu)期(qi)也(ye)不(bu)一(yi)致(zhi),采(cai)摘(zhai)時(shi)要(yao)根(gen)據(ju)不(bu)同(tong)情(qing)況(kuang),采(cai)取(qu)不(bu)同(tong)措(cuo)施(shi)。成(cheng)熟(shu)的(de)葡(pu)萄(tao)表(biao)麵(mian)有(you)光(guang)澤(ze),果(guo)肉(rou)透(tou)明(ming),有(you)一(yi)層(ceng)濃(nong)厚(hou)的(de)粉(fen)霜(shuang),食(shi)之(zhi)有(you)風(feng)味(wei),種(zhong)子(zi)呈(cheng)棕(zong)褐(he)色(se)。采摘過早,則酸度過高,影響品質;采摘過遲,則果實味淡,不耐貯運。因此,適時采摘,分批進行,是保證葡萄質量的關鍵。以晴天上午露水幹後采摘最適宜。
2.注意防旱降溫,在采摘階段,如遇長期高溫或無雨天氣,果實、yepianyiweisuo,yingxiangzhizhushengchanghehuayafenhua。yinci,kecaiyongxingjianfucaolaijiangdidiwen,tongshiyaozhuyishishishiliangguanshui。guanshuiyingcaiyonghuanzhuanggouguanfa,jizaishuguanwaiweiwayidaokuangou,jiangshuiguanru。
3.適時施用“養身”肥葡萄的成熟采摘階段,正是其根係生長的第二個高峰期,應及時施肥。此次施肥量占全年施肥總量的60%;肥料以廄肥、堆肥、塘泥等有機肥為好。同時摻些尿素、碳酸氫銨等速效肥。每畝葡萄園要求施用3000~4000千克有機肥,摻施30~40千克尿素或100~130千克碳酸氫銨,先施化肥,後施有機肥,再進行覆土,施肥後及時灌水。另外,在成熟采摘期應停止修剪副梢。
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