自从Nene,Y.L.(1966)报道印度低湿水田缺锌之后,几乎所有产稻国均有类似的报道。近几年来,水稻缺锌面积有逐渐扩大的趋势,许多水稻营养学专家认为:水稻缺锌是仅次于缺氮缺磷,而列为水稻营养失调和限制产量的第三大问题,及时准确地诊断土壤供锌水平,采取防性措施是解决这一问题的有效途径。世界许多国家及我国南方,普遍进行了水稻缺 Since Nene, Y.L. (1966) reported a lack of zinc in low-moisture paddy fields in India, almost all producing countries have reported similarities. In recent years, the zinc-deficient area in rice has been gradually expanding. Many rice nutrition experts think that lack of zinc is second only to nitrogen and phosphorus deficiencies, and it is listed as the third largest issue of rice nutrient imbalance and limited yield, which is timely and accurate To diagnose the level of soil zinc supply and take preventive measures is an effective way to solve this problem. Many countries in the world and southern China have carried out a general lack of rice