天气预报 > 其他 > 红薯叶子边缘发黄怎么办
红薯叶子边缘发黄怎么办
更新时间: 2020-10-24 00:00:00  

红薯叶片发黄是因浇水过多导致根部松动所致。可暂停一段时间浇水,用小耙将表土耙松,并用百分之零点二磷酸二氢钾进行叶面施肥。若情况不见好转,黄化愈发严重,则可将植株整株从土中磕出查看根系。如果根系已腐烂,可从根颈处将烂根全部清洗干净,然后用百分之零点五高锰酸钾清洗伤口,在伤口处涂上木炭或硫磺粉,晾干伤口后将它埋入干净的素砂中,放在通风处,一般一个月左右可以生出新根。待新根生出后移入土中栽培即可。

关键词: 红薯 叶子 边缘 发黄 怎么办

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