甜樱桃缺铁症又称黄叶病,初发病时,新梢顶端叶片变黄,叶脉两侧及下部老叶仍为绿色。发展严重时,全树新梢嫩叶失绿,全叶变黄白色,并出现茶色坏死斑,上部小叶早落,光秃,数年后树势衰弱,树冠稀疏,甚至全树死亡。缺铁症,在鲁西地区发生比较普遍。主要是土壤呈碱性(pH过高)反应引起,在碱性土壤中,可溶性铁被固定,根系不能吸收,致使植株缺铁现象发生。现将其 Sweet cherry iron deficiency, also known as yellow leaf disease, the initial incidence, the tip of the tip of the leaves turn yellow, both sides of the veins and the lower part of the old leaves are still green. When the development is serious, the whole shoot shook the green leaves lost, the whole leaves turn yellow and white, and brown necrotic spots appear, the upper leaflets early fall, bare, a few years after the tree weakness, sparse canopies, and even the whole tree died. Iron deficiency, occurring in the Luxi area is relatively common. Mainly soil alkaline (pH is too high) reaction caused, in alkaline soil, soluble iron is fixed, the root can not be absorbed, resulting in plant iron deficiency. Now it