稀土元素是指化学元素周期表中,由性质十分相近的镧,铈、镨、钕等15种镧系元素和与镧系元素性质极为相似的钪、钇共17种元素的统称。稀土元素是近30年来才进入人类生活的一组新金属。在现代工业、尖端技术中已有不少重要用途但是与生态环境和农业生产的关系还鲜为人知,特别是在农业上的应用历史还很短。虽然从1972年开始了有关农用研究,但较大规模的试验还是从1979年开始的。在短短10年中,已取得可喜的成就。目前,我国推广面积已近1400万亩,取得显著经济效益,进入世界领先地位。由于稀土农用投资少、见效快、效益高,址果品生产短、平、快的一项增产 Rare earth elements are chemical elements of the periodic table, by the nature is very similar to lanthanum, cerium, praseodymium, neodymium and other 15 kinds of lanthanides and lanthanides are very similar properties of scandium, yttrium a total of 17 kinds of elements collectively. Rare earth elements are a group of new metals that have entered human life in the past 30 years. In modern industry, there are quite a few important uses in cutting-edge technology but little is known about the relationship between ecological environment and agricultural production. In particular, agriculture has a very short history of application. Although agricultural research was started in 1972, larger trials started in 1979. In just 10 years, gratifying achievements have been made. At present, China has nearly 14 million mu of land for promotion and has achieved remarkable economic benefits and has entered the world’s leading position. As rare earth agricultural investment less, quick, high efficiency, site production of fruit short, flat, fast a yield