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球兰 > 正文

球兰叶子发黄怎么办

  • 编辑:植物之家木槿
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  • 最后更新:2019年01月07日
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球兰叶子发黄要对症解决,光照不适要提供充足光照,避免强光暴晒;盆土板结不透气要及时更换使其透气;浇水不当要适量浇水防止积水少水;施肥不合理要薄肥勤施补充养分;低温冻害要控温在5℃以上;病虫害则要做好防治使其健康生长。

1、适宜光照

强光暴晒或者是长期无光都会让球兰的叶子出现发黄的情况,要为其提供适宜的光照,将其摆放在散射光照充足的地方,让球兰接受足够光照,从而更好促进叶绿素的合成,让其叶子不再发黄变得健壮青翠。

2、透气盆土

因为盆土不透气让球兰生长不适,从而出现的球兰叶子发黄怎么办呢,要为其进行盆土的更换,将板结的土壤换成疏松透气的沙土,并要为其选择高度大小适宜的透气花盆,重新进行球兰的种植,使它生长的更好。

3、适量浇水

浇水量大或者是量少,导致球兰在生长过程中出现积水或者是缺水的情况,也会让它的叶子发黄。此时就要为球兰适量浇水,保证其水分充足,不出现积水的情况,一般保持土壤呈现半干半湿的状态就可以了。

4、薄肥勤施

球兰生长过程中需要薄肥勤施为其补充养分,施加生肥或者浓肥会让它难以健康生长,从而出现烧根叶黄情况,要注意将肥料稀释,并选择腐熟液肥进行施加,平常也要注意肥料少量多次施加,从而使其茁壮生长。

5、低温冻害

对于低温天气并没有很好抵抗能力的球兰,在养护时如果让其遭受低温冻害,也会使其叶子出现发黄的情况。要注意将其温度控制在20~28℃左右,冬季气温要高于5℃,做好增温保暖工作,让其叶子保持翠绿。

6、病虫害防治

做好病虫害的防治,也可以很好的解决球兰因为病虫害侵袭出现的叶子发黄的问题。面对炭疽病、介壳虫等病虫害,要为其进行喷药治理,从而让它的根茎处于健康的生长状态,可以健康生长叶子不发黄。

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