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豆瓣绿叶子发黄怎么办

巴黎铁塔
2017-05-25

豆瓣绿浇水不当

豆瓣绿喜欢湿润的环境,但并不代表需要较多的水分,豆瓣绿浇水过多根茎长期泡在水中,植株的养分不能向上运输,导致叶子发黄。若浇水不足,会导致植株生理性缺水,叶子发黄打卷。

所以,养护期间要保证植株土壤湿润,不积水,每天适当喷雾2~3次,增加室内的湿度。

豆瓣绿温度过高

其实豆瓣绿叶子发黑、变软,发黄,温度较高都会主要原因,人在闷热的时候会出汗,植物只能靠自身反应,告诉它的主人。所以一定要控制温度,尽量不要超过38℃。

豆瓣绿施肥不当

豆瓣绿对肥水要求多,施肥时要注意避开根系,以免肥料烧根,造成根系腐烂,从而造成黄叶。但也不要盲目施加肥料,要求循环渐进,应适当施加肥水。最好的施肥方法是傍晚施肥,第二天早上浇水,这样可以发挥最好的肥效,又能有效的避免肥害。

豆瓣绿病虫危害

黑点灰霉病,是环境湿度大不通风所致。要时常观察,发现虫子啃食叶片,应用啤酒引诱,开水烫死或盐杀死。若植株遭受环斑病侵害,植株矮化,扭曲,此时可喷洒适量的波尔多液。总之,要防范病虫害对植株的危害,早发现早治疗。
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