我国稀土资源丰富,但对各地的稀土背景值以及稀土肥效与稀土背景的关系等方面的研究不多,而了解土壤稀土的本底情况,对于科学、经济合理推广和施用稀土微肥是必不可少的。因此,从1990年开始,我们对上海郊区土壤稀土总量及可溶性稀土总量进行了研究,以期指导稀土微肥的合理施用。 Rare earth resources in our country are abundant, but few studies have been done on the background value of rare earth and the relationship between rare earth fertilizers and rare earth background, and understanding the background of rare earths in the soil is essential for scientific and economic promotion and application of rare earth fertilizers Less. Therefore, starting from 1990, we studied the total amount of rare earth soil and the total amount of soluble rare earth in the suburbs of Shanghai, in order to guide the rational use of rare earth micronutrients.