叶子发黄: 蔷薇叶子发黄怎么办 燕子掌叶子发黄怎么办 茉莉叶子发黄怎么办 四季桂叶子发黄怎么办 开运竹叶子发黄怎么办 鸭掌木叶子发黄怎么办 玉兰叶子发黄怎么办 白掌叶子发黄怎么办 种的蒜苗发黄怎么办 冬天铜钱草叶子发黄怎么办
美人蕉 > 正文

美人蕉叶子发黄怎么办

  • 编辑:植物之家绿萝
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  • 最后更新:2019年01月05日
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美人蕉叶子发黄是温度过高造成,那么需搬移散光下向四周喷洒水分,浇水过多、或土壤板结时,直接更换新的盆土养殖,施肥不当那么需灌水稀释肥料,缺乏养分及时的追施肥料,遭受病虫害导致叶子发黄,需喷洒对应药剂使叶子恢复生机。

1、降低温度

虽然美人蕉的耐高温性很好,但如果美人蕉的生长环境温度高于40℃,那么它的叶子很容易就会发黄,因此美人蕉叶子发黄怎么办呢,可将其立刻搬移到散光下,还要向盆栽四周喷洒水分,使其更好的生长。

2、更换土壤

当美人蕉浇水过多或土壤板结时,那么需要及时的给其更换新的盆土,当发现美人蕉根部溃烂时,也需要及时的给其进行处理,然后放在凉爽通风处晾2~3天,再重新种植到盆土中就好,使叶子恢复生机。

3、合理施肥

美人蕉叶子发黄也可能是施肥不当造成,如果施肥过多那么需给土壤灌浇大量水分,使盆土中的肥料全部稀释出来,等待美人蕉叶子逐渐恢复时再给其施肥,如果缺乏养分那么需立刻追施肥,通常15~20天施一次氮磷钾肥就好。

4、病虫防治

美人蕉在生长的过程中,如果遭受到蚜虫、红蜘蛛、枯叶病,那么也很容易使它的叶子发黄,这时需将发黄的叶子及时处理,并给其加强浇水施肥管理,喷洒吡虫啉水溶剂、溴氰菊酯乳剂等药剂防治。

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