地质体中的有益矿物营养元素称之为潜资源。地质体称为潜资源库。矿物营养元素的丰度、有效态的变幅是影响农作物质量和产量的下壳秘码,研究它们的赋存状态及含量,以及它们在食物链中迁移、聚集和转化的规律,对农作物优势群落的区域分布、农作物栽培中的生产技术管理、追肥措施、土壤改良等具有重要意义,是农业生产中值得 Beneficial mineral nutrients in geological bodies called sub-resources. Geological known as the potential reservoir. The abundance and effective amplitude of mineral nutrient elements are the codes of the lower shells which affect the quality and yield of crops, and their occurrence status and content as well as their migration, aggregation and transformation in the food chain are studied. Of the regional distribution of crop cultivation in the production technology management, top dressing measures, soil improvement is of great significance, is worthy of agricultural production