兰花叶根部发黄的原因

植物图片 2020-02-04 10:24

兰花叶根部发黄可能是因为养殖时浇水太勤、光照不足或土壤变质，养殖兰花叶时可以根据土壤的变化来浇水，平时可以将兰花叶放置在室内通风有阳光的地方养殖，每年还要根据植株的大小更换一次土壤，每次给植株施肥前可以先用水稀释肥料。

兰花叶根部发黄的原因

1、浇水太勤

兰花叶又被称为兰叶，是一种中药植物，那养殖时兰花叶根部发黄啥原因呢。兰花叶根部发黄可能是因为养殖时浇水太勤，平时养殖兰花叶可以根据土壤的变化来浇水，土壤偏干时可以适当的增加浇水次数，土壤湿润时可以适当的减少浇水次数。

2、土壤变质

如果长期不更换养殖兰花叶的土壤就会使植株根部发黄，兰花叶对肥料的需求量较高，养殖时每年要根据植株的大小更换一次土壤，每次换土时需要留一半的新土，这样植株能更好的适应新土壤，换土成功后不要立即浇水，要等植株适应后再浇水。

3、光照不足

养殖兰花叶时要让植株接受充足的光照，光照不足植株根部就会发黄，平时可以将兰花叶放置在室内通风有阳光的地方养殖，阳光强烈时可以适当的给植株遮阴。阴雨天没有阳光时，可以用光照灯代替阳光照射植株。

4、注意事项

兰花叶生长期时生长速度较快，这时要及时的给植株浇水施肥，养殖时可以给兰花叶施有机肥或复合肥，不能施生肥和浓度太高的肥，肥料浓度太高很容易发生肥害。每次给兰花叶施肥前可以先用水稀释肥料，这样可以降低肥料的浓度。

专题： 兰花
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