枸杞的叶子发黄是什么原因

植物图片 2021-06-10 08:28

枸杞的叶子发黄可能由于缺水、缺肥、缺铁、浇水过多或恶劣天气等。若因浇水过多，表现为老叶不变、新叶变黄，这时要控制水量；若因干旱，变现为自下而上发黄，要及时浇水；若因肥力过剩，表现为嫩叶肥厚不平整，要及时控肥、浇水。

原因及处理方法

枸杞叶子发黄的主要原因有缺水、缺肥、缺铁、浇水过多、施肥过多、恶劣天气，看一下具体的解决方法：

水黄

浇水太多引发；特征表现为老叶没有变化、新叶开始变黄；这时候要控制浇水量。

旱黄

因浇水过少引发；特征表现为从下往上老叶开始发黄，要是缺水时间再长点，就会整株叶子发黄，严重的会死掉，这时要赶紧浇水。

肥黄

肥料太多引起的；特征表现为嫩叶肥厚，有光泽，叶面不平整；这时候应该控制施肥量、翻动一下浅层的土地、再浇水。

饿黄

肥料太少引起的；施肥的时间上分配不合理，致使两次施肥的间隔过久而引起；特征表现为嫩叶、刚长出的茎开始发黄，看到这种现象要尽快施肥，要不会造成植株的死亡。

缺铁叶黄

温室中的土地肥力条件变动比较大，常出现叶子发黄的现象，特征表现为嫩叶比较多，老叶很轻，叶肉呈黄色，叶脉呈绿色，并形成了明显的网络；这时候可以用硫酸亚铁水溶液来搞定，其方法为：油料种子榨油后的残渣七份，硫酸亚铁五份，水二百份配成倍液浇一下就好了。

天气原因

天气是最不可控的，若在枸杞的生长季节遇到连绵阴雨或是烈日当空，枸杞只能遭受恶劣天气的侵袭，靠天靠地还是要靠运气呀！

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