天气预报 > 其他 > 观赏松盆景叶子黄了怎么办
观赏松盆景叶子黄了怎么办
更新时间: 2020-06-27 00:00:00  

产生叶片变黄的原因有:1、水黄。长期浇水引起叶黄。应节制浇水,重者可脱盆,放荫凉处晒干土后再重新上盆。2、旱黄。缺水或浇水偏少而引起叶片发黄。应适当加大浇水量和浇水次数。3、肥黄。由于施肥过多或浓度过大引起叶黄、脱落,应停止浇肥。4、缺肥黄。长期只浇水不浇肥或多年不换盆,使叶发黄。除及时换盆外,应薄肥勤施。5、灼黄。经强烈阳光直射,叶片常出现黄尖。应放阴处。6、湿热黄。因夏季炎热、通风暴不良,避阴不当而引起的发黄。要注意通风和降温。7、白化黄。花卉常期光照不足,叶片中的叶绿素减少,使叶片呈现出白化病

关键词: 观赏 盆景 叶子 怎么办

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