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大叶竹的叶子为什么发黄
更新时间: 2020-09-28 00:00:00  

原因:

浇水过多,盆土长期过湿,造成土中缺氧,使部分须根腐烂,阻碍正常呼吸和水分养分的吸收,引起叶片变黄脱落。受害后先是嫩叶变成淡黄色,继而老叶也渐渐发黄。

挽救措施:

1、立即控制浇水,暂停施肥,并经常松土,使土壤通气良好即可;

2、剪掉发黄的叶子。重新修建竹子根部,修成比较大的斜面,增强竹子的吸水能力;

3、换水,最好是矿泉水;

4、在里面加一枚生锈的铁钉即可。

关键词: 叶子 为什么 发黄

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