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我国稀土资源丰富,储量占世界的2/3。稀土中含有镧、铈、镨等稀有元素。七十年代用于农业,能使小麦、蔬菜、水果等增产,使甘蔗、西瓜、葡萄等含糖量增加。1986年在全国推广应用面积已达1,500万亩以上,国家在“七、五”计划中列为农业科技重点推广项目。目前稀土已应用在割胶生产上。橡胶树割线和割面上涂上一定浓度的硝酸稀土后能促使胶乳产量增加,但也有减产的报道,效果不稳定。红河州农垦分局试验站曾于1983年与蚂蝗堡农场合作在PB86胶树上进行稀土试验,效果不好,有减产趋势。1985和
Rare earth resources in our country, reserves account for 2/3 of the world. Rare earth contains lanthanum, cerium, praseodymium and other rare elements. Seventies for agriculture, wheat, vegetables, fruits and other yield, sugar cane, watermelon, grapes and other increased. In 1986, the popularization and application area in the whole country reached more than 15 million mu, and the state was listed as a key agricultural science and technology promotion project in the “7th Five-Year Plan”. Rare earth has been used in tapping production. Rubber tree secant and cutting surface coated with a certain concentration of rare earth nitrate can promote latex production increased, but there are also reports of reduced production, the effect is not stable. Red River State Farm Bureau pilot station in 1983 and the locust farm cooperation in PB86 rubber tree on the rare earth test, the effect is not good, there is a downward trend. 1985 and