海棠叶子发黄：注意浇水的量及光照情况

植物图片 2019-08-19 09:48

海棠是非常受欢迎的庭院养殖花卉，它的品种丰富，花色艳丽，素有“国艳”之称。在古代，很多文人雅士对海棠花都是赞赏有加。那么海棠叶子发黄，我们该怎么办呢?我们一起去看看吧!

海棠叶子发黄

海棠叶子发黄的原因分析和解决办法：

1、夏天休眠期造成海棠叶子发黄： 叶落茎枯。

解决办法： 海棠夏天高温季节处在生长慢或半休眠状态，此时土宜偏干一些，不可过湿，则易造成叶落茎枯，甚至引起根部或茎部腐烂，造成整死亡;但土也不可过干，过干会引起叶子萎蔫或焦枯。因此，浇水就干湿相宜。

2、土壤结板造成海棠叶子发黄(水黄)： 根系无法呼吸，造成叶子发黄。

解决办法：及时松土。

3、缺铁造成海棠叶子发黄(旱黄)： 叶子发黄。

解决办法： 可以喷洒1~2次硫酸亚铁，来补充缺铁，黄叶的情况可以得到改善。

4、阳光不足造成海棠叶子发黄(缺光黄)： 植株生长柔弱细长，花色及叶色发白。

解决办法： 应给予适度光照，以利花色艳丽，但不可在烈日下直晒，否直片会卷缩并易出现焦斑。

5、海棠长期缺肥造成叶子发黄(缺肥黄)： 植株生长矮小，叶子发红。

解决办法： 可每隔7-10天施一次腐熟的稀薄液肥或复合化肥。

海棠叶子发黄

海棠养护心得：

1、养殖环境要半阴，放阳台内侧，朝东或朝西窗口;

2、浇水要泥土干了再浇，每次浇到水流出为止;

3、要多摘心，不要心疼花蕾，不断地把各个枝条的顶端摘掉，它才会不断分支，变成球状，而不是一根长得长。长的，不仅花少难看而且容易折断。开过的花也要及时修剪掉;

4、要经常转动花盆方向，不让它向一个光照方向歪长;

5、叶子太密了要摘掉一点，通风不好容易发霉病。

专题： 叶子发黄 海棠
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