常春藤黄叶子怎么办

植物图片 2021-06-05 15:06

主要原因有：温度光照不适宜、浇水施肥不当导致。解决办法：控制环境温度20~25℃，冬季在10℃以上，接受明亮的散射光；浇水不可过多，见干见湿；施肥需要底肥，可在春季换盆时进行，夏季和冬季不要施肥。

原因

光线的影响

常春藤是冬季常见的绿叶植物，冬季不需要遮阴，光线适当强一点也无所谓。但夏季阳光强烈，若不移动，还是正常的接受阳光照射，容易造成叶面出现坏死的情况。

温度的影响

常春藤喜欢凉爽的环境，怕闷热、霜冻，尤其是秋冬的早霜，若没有及时移到室内，叶片遭受霜冻耷拉，变黄。还有就是夏季室内养殖，不及时通风，环境闷热，也会造成黄叶。

水分的影响

常春藤最大的观赏之处在于叶片，而水分的供应是保证叶片饱满的前提。生长期间需要保证盆土湿润，但不能积水，许多花友在养护过程中把握不好度，导致盆土忽干忽湿，植株得不到充足的水分，植株代谢缓慢，导致植株黄叶。

病虫害

病虫害是植株养护过程中无法避免的，但在某些情况下人的肉眼是看不到叶片上有虫子的，防治不及时，就会造成植株黄叶。或者在叶斑病的作用下，植株不会有任何征兆的黄叶，防不胜防。

缺肥

常春藤叶总发黄还可能是饿的，人饿了会吃饭，植物饿了需要养分。当植株叶子发黄，很显然是缺铁，是在养护过程中，长时间未施肥，或施肥时各元素不均衡。

怎么办

温度要适宜

既然常春藤对温度比较挑剔，那就满足它，毕竟你也觊觎人家的美色。控制环境温度在20~25℃，并且要时刻关注环境湿度，经常通风。冬季温度要控制在5℃以上，10℃左右最好。

光照度要适度

适宜的光照下，常春藤的叶片会叶形一致，叶色鲜明。若植株因光照原因变黄，严重的叶片直接剪掉，保留刚长出的嫩叶，给予适当的光照，使其慢慢恢复。

浇水要适量

在生长的季节要见干湿（即是不能让盆土过湿，也不能过干），如果水分过多便会已发烂根落叶。尤其是在冬季的温度是偏低的，所以尤其要控制浇水，只要保持盆土有点湿润便可。

施肥要合理

在家庭培养常春藤时，盆土可选用腐烂叶或者是炭土加1/4河沙和少量骨粉混合而配成的土壤，生长季节2至3周可施1次稀薄饼肥水。一般夏季和冬季不要施肥，施肥时也要注意不要选择偏偏施氮肥。在施肥时也要注意不要玷污叶片，以免引起叶片枯焦。因缺铁造成黄叶的要及时补充铁元素，浇灌硫酸亚铁溶液。

专题： 常春藤
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