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怎么样种大葱长得快
更新时间: 2020-07-05 00:00:00  

一、及时施肥浇水立秋以后植株生长加快时,追施“攻叶肥”,每亩施腐熟的农家肥1500千克到2000千克、过磷酸钙20千克到25千克,促进叶部增长。浅中耕后浇水,一般2次到3次即可,浇水以垄上土壤干燥,沟内土壤湿润为原则。二、及时培土大葱生长要快,要靠及时多次培土,才能使葱长得快而粗壮,可分4次—5次培土,每次培土高度以培在葱心不能被埋为主。培土过浅不利于葱茎白体快速生长,培土过多造成烂心,形成减产或叶色变黄。三、及时病虫防治每亩地用“新高脂膜”乳剂300克,兑水230-250千克,均匀喷雾,间隔7-1

关键词: 怎么样 大葱

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