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青苹果盆栽叶子得边缘发黄怎么办
更新时间: 2020-07-01 00:00:00  

方法:

1、用千分之一的氮肥溶液进行叶面喷雾,三日一次,持续两周;

2、减少浇水次数,盆土不干不浇水,干就浇透;

3、如果已经很严重,可以从盆土中取出来,剪掉已经变黑发烂的根,重新上盆;

4、如果水养,水不要淹没过根茎处,只要根一半入水就可以了。

原因:

1、浇水过多,盆内过湿,土壤缺氧,根须腐烂造成的;

2、由于盘土太满或长时间浇水不透,造成下部叶片枝干老化;

3、光照不适 ,盆花常放室内,花卉容易黄叶

关键词: 苹果 盆栽 叶子 边缘 发黄 怎么办

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