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稀土元素是镧系金属元素的总称，在地壳中含量稀少，约占１５×１０－６．我国对稀土元素的开发利用较早，特别是农业上稀土多元复合肥常与农药一起使用，这对生物和环境的影响为人们所关注，给环境研究带来了新课题．目前对稀土元素的研究主要集中在地球化学、农业化学和...
Rare earth element is a general term for lanthanide metal elements, rare in the crust, accounting for about 15 × 10-6. In our country, the development and utilization of rare earth elements are earlier, especially the rare earth compound fertilizers used in agriculture are often used together with pesticides, which has brought people’s attention to the impact on the biology and the environment, and brought new topics to environmental studies. The current research on rare earth elements mainly in geochemistry, agrochemicals and ...