锌是植物正常生长不可缺少的重要微量营养元素之一,锌与植物生长素、氮代谢、有机酸代谢及酶促反应均有着密切的关系,缺锌会引起特殊的植物病害,致使产量显著降低。云南省山区、半山区面积很大,玉米又是山区、半山区的主要粮食作物。因此,提高 Zinc is one of the important micronutrient elements that are indispensable for the normal growth of plants. Zinc is closely related to auxin, nitrogen metabolism, organic acid metabolism and enzymatic reaction. Zinc deficiency causes special plant diseases and significantly reduces the yield . Mountainous area in Yunnan Province, Mid-Levels area is very large, corn is mountain, Mid-levels of the main food crops. So raise