目前,农业上研究和应用的稀土品种主要是包头氟碳铈镧矿稀土提取钐、铕、钆后的富铈稀土硝酸盐,对其它类型稀土研究开发甚少。离子型稀土矿稀土是我国南方独有的稀土品种,我省也有很大贮量,其主要组分是镧钆镨钕,在农业上可能有比富铈稀土更好的应用前景。离子型稀土农用综合技 At present, rare earth varieties studied and applied in agriculture are mainly cerium-rich rare earth nitrate extracted from samarium, europium and gadolinium by Baotou bastnaesite rare earth, and little research and development on other types of rare earths. Ionic rare earth ore rare earth rare earth species in southern China, our province also has a large reserves, the main component is lanthanum gadolinium praseodymium neodymium in agriculture may have better prospects than the ceria rare earth. Ion-type rare earth agricultural comprehensive technology