锌是植物必须的营养元素之一。国外不少国家都有锌肥研究的报导,尤其是亚洲研究较多,如国际水稻所把水稻抗缺锌能力列为品种特性之一。国内云南在玉米上大面积施锌效果很好,安徽、山东等地都发现水稻缺锌,湖北研究锌肥在江汉平原上的效果,都取得很大成绩。 近年来,我省洞庭湖区 Zinc is one of the essential nutrients for plants. Many foreign countries have reported zinc fertilizer research, especially in Asia, more research, such as the International Rice Rice Zinc tolerance ability as one of the varieties. Large-scale application of zinc in corn in Yunnan Province is very good. In Anhui and Shandong, zinc deficiency was found in rice. Hubei's research on the effect of zinc fertilizer on the Jianghan Plain achieved great success. In recent years, Dongting Lake District in our province