鹤望兰叶子发黄开裂怎么办？五大解决方法

植物图片 2019-08-16 09:33

如果鹤望兰的叶子发黄开裂就需要及时的处理，如果光照过少，则保证每天的光照时长不能少于4个小时，土壤不当则采用比较透气且排水较强的沙质土壤，气温过高应应将花盆移到凉爽环境中，在平时养护中控制气温在18℃～30℃即可。

1、增加光照

鹤望兰是典型的长日照植物，最好整天在有亮光的环境下生长，如果光照过少会造成叶子生长受阻，出现发黄开裂的现象，那么鹤望兰叶子发黄开裂怎么办才好，此时应将花盆摆在阳光充分处，在生长期间每天给予的光照时长不能少于4个小时，遵循冬不阴、夏不晒的管理原则即可。

2、换土处理

鹤望兰的生长对土壤是有一定的要求的，喜欢在比较透气且排水较强的沙质土壤中生长，如果土壤过厚或者透气性很差的话，会造成烂根从而出现叶子开裂发黄的现象，最好及时换土处理，换土时候应保留以前的少量旧土，在盆土加入适量的碎渣即可。

3、降温处理

鹤望兰的生长对环境的气温比较敏感，这也关系着植株的开花效果，如果气温高于40℃时候植株将会生长受阻，出现叶黄且卷曲开裂的现象，而且开花比较稀少，此时应将花盆移到凉爽环境中，在平时养护中控制气温在18℃～30℃即可，在冬天的气温不能低于0℃。

4、增加水分

鹤望兰喜欢在潮湿的环境中生长，如果浇水过少则会影响叶子光合作用，出现开裂干枯的现象，除了秋天的9月份到第二年的2月份保持盆土干燥之外，其他的季节都要保持盆土湿润，不要造成盆土积水就行了。

5、预防病虫

由于鹤望兰的生长环境比较容易产生一些病虫害，通常常见的主要为炭疽病和根腐病的危害，它们主要有害叶子和茎秆，叶子会慢慢的出现开裂发黄的现象，最好当出现此类病害时候，要严格控制浇水，加强空气流通，用甲基托布津可湿性粉剂喷洒即可。

专题： 鹤望兰 叶子发黄
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