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稀土能提高农作物的产量，并使农作物的品质得到改善［１，２］，但稀土盐易水解生成沉淀，不利于农作物的吸收，而实验证明农作物对稀土配合物的吸收量远大于稀土盐［３］，文献还证实了稀土氨基酸配合物对农作物的促生作用［４］。为使稀土氨基酸配合物在不失其促生作用的基
Rare earths can increase the yield of crops and improve the quality of crops [1,2]. However, rare earth salts are easy to hydrolyze and precipitate, which is unfavorable to the absorption of crops. Experiments show that the absorption of rare earth complexes by crops is much larger than that of rare earth salts [ 3], the literature also confirmed the rare earth amino acid complexes on the role of promoting the growth of crops [4]. To make rare earth amino acid complexes without losing its role in stimulating the base