栀子花叶子发黄怎么办
栀子花叶子发黄怎么办,栀子花叶子发黄的可能原因有:
①缺铁。缺铁的表现,是在幼嫩叶片的叶脉间失绿发黄,整个叶片逐渐变黄白至白色。缺铁常发生在石灰质土壤和碱性土中。土壤中磷素和锰过多也会影响植物对铁的吸收。
②缺镁。缺镁的表现,是植株下部老叶的叶脉间首先失绿发黄。特别是酸性红壤土,镁容易流失。营养中的钾和铵过多,与镁离子产生抵抗作用,也会使栀子花发生缺镁现象。
③土壤积水。通气不良和病虫危害等都会引起栀子花叶子发黄。
盆栽的栀子花出现枝枯叶落,多数原因是浇水太多太勤,盆土经常过湿,排水又不好所致。这种现象也常见于其他花卉。
因此,不论盆养什么花,凡是用土壤栽培的,都应注意盆土干湿得当,土质要疏松,排水性要好。另外,如果施入未发酵腐熟后的有机质“生肥”或浓度过高的有机肥料及花肥,也会发生同样的情况。
总之,应针对植株花叶子发黄的具体原因进行适当的肥水管理,以上就是关于栀子花叶子发黄怎么办的介绍。
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