稀土元素80年代中期国家对“65”期间稀土农用所取得22项技术成果进行了鉴定验收,肯定了稀土对农作物增产、改善品质和提高抗逆性等效果;此外稀土还具有施用技术简便、可行、成本低、经济效益显著等特点。因此,我国稀土推广应用面积逐年扩大,1986年800万亩,1987年1400万亩,1988年1800万亩,1989年2300万亩,1990年3100 Rare Earth Elements In the mid-1980s, 22 technical achievements made by rare earth farming during the “65” period were appraised and accepted by the state, which affirmed the effect of rare earth on crop yield, quality improvement and stress resistance. In addition, rare earth also has the advantages of simple and feasible application technology , Low cost, significant economic benefits and other characteristics. Therefore, the popularization and application area of ​​rare earth in our country has been expanded year by year, with 8 million mu in 1986, 14 million mu in 1987, 18 million mu in 1988, 2300 mu in 1989, 3100