摘要
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。
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.
出处
《广东微量元素科学》
CAS
2000年第8期24-28,共5页
Trace Elements Science
基金
重庆市自然科学基金
