水蜜桃树对氮的含量比较敏感。氮素不足时表现出新梢生长短,叶片薄、色浅,尤其是老枝老叶更为明显。严重缺氮时叶面呈黄绿以至绿黄色,基部叶出现红褐色斑点、穿孔,枝条短硬、纤细,呈纺锤状,小枝表皮棕红色或紫黄色。果小味涩品质差;树势弱花芽弱小产量低。若氮过多时枝叶生长过 Peach trees are more sensitive to nitrogen content. Nitrogen deficiency showed short shoot growth, leaf thin, light color, especially the old branches of old leaves is more obvious. Serious nitrogen deficiency when the leaves were yellowish green to yellowish green, base leaves appear reddish brown spots, perforation, branches short hard, slender, was spindle-shaped, twig reddish brown or purple. Fruity small taste astringent poor quality; weak plants weak flower buds low yield. If too much nitrogen when the foliage grows