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铁是桃树生长发育必需的微量元素。桃树缺铁在黄河流域以北地区十分普遍。据调查：桃树缺铁可引起黄叶病。一般症状多从４月中旬开始出现。发病初期，新梢顶端嫩叶变黄，而叶脉两侧仍绿，下部老叶则正常。随着新梢的生长，病情逐渐加重，全树新梢顶端的嫩叶严重失绿，叶脉呈淡
Iron is an essential trace element for the growth and development of peaches. Peach iron deficiency in the Yellow River north of the region is very common. According to the survey: Peach iron deficiency can cause yellow leaf disease. The general symptoms began to appear in mid-April. Early onset, the tip of young shoots turn yellow, while the veins are still green on both sides, the lower part of the old leaves are normal. With the growth of new shoots, the condition gradually aggravate, the top of the whole tree shoots young leaves a serious loss of green, pale veins