芦荟叶子发黄怎么办：诱因较多,附解决方法

植物图片 2019-03-27 17:07

芦荟是热带草本植物，养殖容易，存活率高，很多人都喜欢在办公室或家里养殖芦荟。但养护不当会使芦荟叶子发黄，下面让我们一起了解芦荟叶发黄的原因及解决办法。

芦荟叶尖发黄

芦荟叶子发黄的原因分析和解决办法：

1、环境突变造成芦荟叶子发黄：环境突变的原因，气温湿度和光照突然变化太大，或者是换盆伤根了需要缓苗，土壤偏酸或偏碱等造成的叶子发黄。

解决办法：尽量减少环境的变化程度，等其适应过来即可。

2、浇水过多造成芦荟叶子发黄(水黄)：受害后先是嫩叶变成淡黄色，继而老叶也渐渐发黄。

解决办法： 这时应立即控制浇水，停止施肥，并经常松土，使土壤通气良好。

3、长期缺水造成芦荟叶子发黄(旱黄)：会引起叶色暗淡无光泽，叶子萎蔫下垂。先是下部叶子老化，并由下而上枯黄脱落。

解决办法： 此时需适量浇水，使其逐渐复原后再转入正常水肥管理。

长期缺水的芦荟发暗发黄

4、暴晒造成芦荟叶子发黄(灼黄)： 极易引起幼叶叶尖或叶缘枯焦，或叶黄脱落。

解决办法： 需及时移到通风良好的冷凉处养护。

5、空气干燥造成芦荟叶子发黄：往往会出现叶尖干枯发黄，或叶缘枯焦，或叶子上发生焦斑、边缘卷曲等现象。

解决办法：这时应经常使用与室温相近的温水喷洗枝叶，以增加空气湿度。

6、阳光不足造成芦荟叶子发黄(缺光黄)： 会逐渐造成生长衷弱，叶薄而黄。

解决办法： 将盆花移至向阳处。

7、气温过高造成芦荟叶子发黄：极易引起幼叶叶尖或叶缘枯焦，或叶黄脱落。

解决办法： 需及时移到通风良好的冷凉处养护。

8、气温过低造成芦荟叶子发黄：冬天室温过低，受到轻微冻害，就会叶子发黄。

解决办法： 应及时依据情况调整室温。

9、施肥过多造成芦荟叶子发黄(肥黄)：会出现新叶肥厚，但大都凹凸不平，老叶干尖焦黄脱落。

解决办法：应立即停止施肥，增加浇水量，使肥料从排水孔流出；或立即倒盆，用水冲洗土坨后再重新栽入盆内；或去掉部分陈土，换入新的营养土。

10、长期缺肥造成芦荟叶子发黄(缺肥黄)：土中氮素等营养缺乏，造成枝叶瘦弱，叶薄而黄。

解决办法： 需及时倒盆，换入新的肥沃疏松营养土，并逐渐增施复合花肥或稀薄液肥。

11、烂根造成芦荟叶子发黄：表现在嫩叶颜色变淡，变黄等。

解决办法： 及时清除烂根，放到通风处凉干。伤口愈合后回盆，注意盆中不可有积水。

12、病虫害造成芦荟叶子发黄：出现黄色斑点或斑块，严重时整个叶子枯黄脱落。

解决办法： 发现病虫为害时应及时喷洒托布津或乐果等农药进行防治。

病虫害发黄的芦荟叶

芦荟养护心得：

1、芦荟喜欢生长在排水性能良好，不易板结的疏松土质中。通常的土壤中可掺些沙砾灰渣，如能加入腐叶草灰等更好。

2、生长旺盛期土壤中养分不断被株体吸收，如不及时追肥就会影响芦荟生长。有机肥料通常肥效慢，不能等芦荟生长受了影响后再施肥，这样就来不及了。施肥一次不宜过多，不要沾污叶子，如果沾污要用清水冲洗。

专题： 芦荟
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