天气预报 > 其他 > 合果芋的叶子为什么会发黄掉叶
合果芋的叶子为什么会发黄掉叶
更新时间: 2020-08-16 00:00:00  

1、浇水过多:因浇水过勤引起,其特点是老叶无明显变化、幼叶变黄;此应立即控水;

2、缺水:因缺水、干旱引起,其特点是自下而上老叶先黄,若缺水时间稍长,则会全株黄叶,甚至死亡,应及时浇水;

3、施肥过多:因施肥过勤或浓度过高引起;特点是幼叶肥厚,有光泽,且凹凸不平;应控肥、中耕、浇水;

4、肥料供应不足:因肥料不足、施肥浓度偏低,且施肥间隔时间过长而引起;其特点为幼叶、嫩茎处先黄,如见此现象后不及时施肥,也会造成全株黄叶甚至死亡;对缺肥的花卉,切忌一次大量施用浓肥,以免造成烧根。

关键词: 叶子 为什么 发黄

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