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我国富产稀土,其应用也日益广泛。从1972年,国内许多省市的农业科研单位将硝酸稀土、氯化稀土或稀土复盐用于农作物栽培试验,取得了一定的增产效果。文献报道,试验作物包括水稻、小麦、玉米、大豆、马铃薯、棉花、油菜、西瓜、花生、烟草、白菜、韭菜、甜菜、甘蔗、黄麻、茶叶等十余种粮食、蔬菜和经济作物,微量稀土对这些作物均有不同的增产效果。这就为我们提出了迫切的研究课题,其中包括建立对土壤及植物中稀土的可靠而准确的分析方法。
Rich in rare earth in our country, its application is also increasingly widespread. Since 1972, agricultural research institutes in many provinces and cities in China have used rare earth nitrate, rare earth chloride or rare earth complex salts for crop cultivation experiments and achieved some stimulation effects. It has been reported in the literature that more than ten kinds of grain, vegetables and cash crops such as rice, wheat, corn, soybean, potato, cotton, rapeseed, watermelon, peanut, tobacco, Chinese cabbage, leek, sugar beet, These crops have different yield-increasing effects. This raises an urgent research topic for us, including establishing a reliable and accurate analytical method for rare earths in soils and plants.