天气预报 > 其他 > 西红柿根变黄是什么原因
西红柿根变黄是什么原因
更新时间: 2020-09-22 00:00:00  

盆土缺氮,叶片小,叶色淡黄,下部叶先黄,逐渐整株失去绿色,下部更黄淡。盆土缺磷,叶片卷曲,叶色暗绿,下部叶的叶脉间黄化。盆土缺钾,下部叶边缘褐色易倒伏。盆土缺镁,由下至上叶片边缘和中部失绿变白。盆土缺铁,出现焦褐斑干枯。

关键词: 西红柿 什么 原因

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