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。我省山区、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,提高玉米产量,对于我省粮食上《纲要》具有重要意义。随着“农业学大寨”运动的开展, 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 . Mountain area in our province, Mid-Levels area is very large, corn and mountain, Mid-levels of the main food crops. Therefore, increasing corn production is of great significance to the “outline” of grain in our province. With the “Agricultural Studies Dazhai ” campaign carried out,