大豆中稀土元素分配规律研究

研究了大豆中稀土元素（La、Ce、Nd、Y、Gd）的含量分布规律。结果表明：大豆各部位稀土含量分布一般规律为：根＞茎＞夹壳＞夹果；大豆在生长不同期吸收稀土的能力大小为：幼苗期＞分枝期＞成熟期。总之，稀土元素在大豆中不易迁移，主要集中在根部，果实中含量甚微，因而施用稀土微肥，不会影响食用粮食的安全问题。

Distribution of Rare Earth Elements in Soybean with Rare Earth Fertilizer

The absorption and content distribution of REs(La, Ce, Nd, Y and Gd)in soybean have been studied. The results showed that the content distribution of rare earth elements in soybean were root>leaf>stem>fruit. The absorptivity of soybean on rare earth elements in soybean growing was seedling>ramirication>maturity.In a word, the data of pot experiment show that most of earth elements bioaccumulate in root. Thus, it is helpful for agricultural application of rare earths.