老花农总结20年，花草黄叶的真正原因，不看亏死了！

植物图片 2021-11-02 04:31

花草总是黄叶却找不到原因？水多、水少、光多、光少、肥多、肥少……这些都会导致花草黄叶，那你的花草究竟是为什么黄叶呢？花花给各位花友总结了最全的黄叶原因，让花友们可以对图诊疗！

栀子

1、缺铁性黄叶

表现：叶面发黄、发白，但叶脉是绿的，慢慢的，叶脉也会变黄。

解决办法：把硫酸亚铁按照1:2000的比例兑水稀释，给栀子浇下去。

2、浇水过多发黄

表现：叶脉是绿色，叶面是明显的黄色，并且是从叶尖开始变黄。

解决办法：及时摘掉黄叶，松土，把栀子放在通风的地方，尽快散尽土壤中的水分。

3、缺水发黄

表现：叶片下垂，老叶变黄、发干，叶心和叶脉呈黄色，并且黄色呈点状扩散。

解决办法：及时浇水，多往叶片上洒水保湿。

4、施肥过多发黄

表现：叶脉是黄色，叶片偏绿，黄色偏浅，呈片状扩散。

解决办法：及时更换盆土。

君子兰

1、正常黄叶

君子兰根部的叶片发黄、变软、变薄，其他叶片十分健康，那这就是正常的新陈代谢，把黄叶摘掉即可。

2、浇水过多发黄

表现：新叶嫩黄，老叶片的叶尖枯黄。

解决办法：减少浇水次数，把君子兰放在通风的地方，松土，让土壤中的水分尽快散尽。

3、缺水发黄

表现：老叶枯黄脱落，新叶正常。

解决办法：尽快浇水。

4、施肥过多发黄

表现：叶片肥厚但凹凸不平，新叶的叶尖干褐，老叶的叶尖枯黄焦干。

解决办法：及时更换盆土，土壤疏松的情况下，可以一次性浇大量的水，灌根。

5、缺少营养发黄

表现：老叶从叶尖起发黄，新叶又薄又小，而且软，就是长期缺肥导致的发黄。

解决办法：把有机液肥按照1:2000的比例兑水稀释，给君子兰浇下去。

6、光照不足发黄

表现：老叶发白，新叶嫩黄。

解决办法：把君子兰移到室内明亮的地方，早晚的时候可以适当给它晒晒太阳。

7、日晒过度发黄

表现：叶片出现大范围黄斑。

解决办法：把君子兰放到室内通风明亮的地方。

8、土壤过碱发黄

表现：叶片转为暗黄色，逐渐脱落。

解决办法：把腐叶土和珍珠岩（蛭石、煤渣等）按照1:1比例混合，可以掺入少量锯末、水苔、花生壳等，重新栽种君子兰。

月季

1、干旱发黄

表现：叶片干枯，老叶自下而上开始脱落，新叶正常。

解决办法：及时浇水，放到半阴通风的地方。

2、浇水过多发黄

表现：老叶边缘枯黄，新叶暗黄，叶片无光泽，枝干细小，新梢萎缩。

解决办法：把它移到阴凉通风的地方，松土，尽快散尽土壤中的水分。

3、施肥过多发黄

表现：新叶肥厚有光泽，但是叶面凹凸不平，老叶枯黄脱落。

解决办法：更换盆土，或者用芸苔素按照1:2500的比例兑水稀释，然后灌根和喷叶。

4、缺少营养发黄

表现：新叶、嫩茎发黄，老叶由绿变黄。

解决办法：有机液肥按照1:2000的比例兑水稀释，浇给月季。

5、缺铁性黄叶

表现：叶脉是绿色，叶面发黄，能看出明显的网络。

解决办法：硫酸亚铁按照1:2000的比例稀释后，浇给月季。

6、日晒过度发黄

表现：叶片边缘干枯，朝阳叶片出现黄斑。

解决办法：把盆栽移到阴凉通风的地方缓一下。

7、光照不足发黄

表现：叶片大范围暗黄，叶片变薄，脱落。

解决办法：让月季接受阳光照射。

茉莉

1、浇水过多发黄

表现：嫩叶发黄但老叶无变化，新梢萎缩不长。

解决办法：放到阴凉通风的地方，松土，让土壤中的水分尽快散尽。

2、施肥过多发黄

表现：老叶枯黄脱落，新叶变成褐色，凹凸不平。

解决办法：尽快更换盆土。

3、缺铁性黄叶

表现：叶脉仍绿但叶片发黄，呈网格状。

解决办法：用硫酸亚铁按照1:2000的比例兑水配制，然后浇给茉莉。

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