桂花叶子发黄是什么原因

植物图片 2019-09-08 17:21

我们在栽培桂花的时候，如果叶子发黄就要及时的处理，通常常见的主要原因是浇水不当，土壤过于碱性，光照过强或者长时间的暴晒，或者气温过高没有进行降温处理，及其肥料过少造成植株生长不良造成的。

1、浇水不当

桂花是平常的养护中，对水分的要求是很高的，如果浇水过多或者过少的话，都会造成叶子发黄枯萎的现象出现，要按照见干就湿的浇水原则，在生长期间经常保持盆土湿润，盛夏期间可经常向叶子喷洒水雾。

2、土壤不当

桂花喜欢在酸性土壤中生长，关于桂花叶子发黄是什么原因造成的，可以考虑土质是否偏碱，如果是碱性土壤，会造成根部腐烂从而出现叶子发黄凋落现象，最好选取腐叶土，园土，沙土，泥炭土按照4:2:2:1的比例进行混合配制，然后浇入水分充分混合即可。

3、光照过强

桂花虽然是一种喜阳植物，但是如果长时间摆在室外暴晒或者阳光过强的话，都会造成叶子发黄的现象，通常保持每天有5～6个小时的光照时间，当强光直射的时候摆在阴凉处就可以了。

4、气温过高

桂花喜欢在温暖的环境中生长，它的生长适温在15℃～25℃左右，当气温高于30℃的时候，叶子中的水分蒸发速度加快，会出现发黄枯萎的现象，最好将枯叶剪除，然后高温季节的时候摆在空气流通性较好的阴凉环境中即可。

5、肥料过少

桂花如果长时间缺少肥料，会造成叶子发黄，特别是缺少氮肥的情况下，植株会一直生长不良，最好每隔1个月施加一次稀薄的有机肥料溶液，在春天的时候追加一次氮肥溶液就行了。

专题： 桂花
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