叶子发黄: 滴水观音叶子发黄下垂 葡萄树叶子发黄干枯 栀子花花苞发黄掉落 葡萄叶子发黄怎么治疗 绿萝发黄是什么原因 富贵椰子叶子发黄怎么办 白掌叶子发黄 长春花叶子发黄怎么办 三角梅叶子发黄脱落怎么办 绿萝叶尖发黄
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文竹发黄

  • 编辑:植物之家白掌
  • 浏览:
  • 最后更新:2018年12月07日
  • 手机版

文竹是观赏价值很高的小型植物,当出现枝叶发黄就要及时的对症下药,水分过多的话则保持盆土湿润即可,光照过强最好移到半阴环境下,温度过低应做好防寒保暖的准备,肥料过多则每月施一次薄氮肥最佳。

1、增加水分

通常来说文竹喜欢在湿润的环境下生长,水分过少是导致文竹发黄的最为常见的原因,当出现发黄现象最好增加水分,每天保持盆土湿润最佳,但是也不能浇水过多,否则出现积水导致烂根现象。

2、减少光照

因为文竹喜欢半阴的环境,如果光照过久或者强光直射,会使文竹枝叶上的水分加速蒸发,导致不能正常的进行光合作用,从而出现发黄凋落的现象,最好将文竹移到避光处,保持半阴半阳的环境最佳。

3、防寒保暖

由于文竹喜欢在温暖的条件下生长,冬季的时候不耐严寒,如果温度过低的话导致植株的根部受损,从而出现发黄现象,最好在冬季严寒的时候放在室内,盛夏的时候处于半阴通风性较好的环境即可。

4、减少施肥

虽然文竹对肥料的需求不是很大,但是施肥过量或者次数较多时候会导致文竹的根部烧伤,引起植株发黄的现象,最好施肥的时候以薄肥为主,而且要以氮肥为主,每月施加一次薄肥,然后浇入少量的水分最佳。

5、重新换土

文竹在长时间的养殖过程中,如果病菌入侵造成根部腐烂会导致文竹生长停止,出现发黄枯萎的现象,最好将文竹老根上的烂根,枯根全部剪除,重新上盆前用少量的高锰酸钾进行消毒,上盆后及时的进行松土处理。

6、防病虫害

一般在文竹生长过程中当湿度过大且通风不佳的时候容易出现叶枯病,导致文竹的植株发黄慢慢枯萎,最好不定期的清理盆土上面的杂质,然后用以少量的波尔多液进行喷洒,在盛夏高温季节最好提前预防。

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