稀土元素在甘蔗植株中分布的研究

研究了甘蔗喷施低浓度农用混合稀土硝酸盐溶液后,植株中稀土元素的含量和分布的变化情况.结果表明:蔗汁的稀土元素含量无明显变化,甘蔗喷施稀土不影响食用;稀土主要分布于叶片,尤其集中于生长活跃的顶部叶片;喷施稀土可促进植株吸收土壤中的可溶态稀土;植株中的稀土主要来源于土壤.

STUDY ON DISTRIBUTION OF THE RARE EARTH ELEMENTS IN SUGARCANE PLANT

We present a study on changes of content and distribution of the rare earths in sugarcane plant after low-concentration agricultural applicable nitrate of mixed rare earth solution was sprayed on the plants. The results indicate that the content of rare earth elements in sugarcane juice has no obvious change, the edibility of the sugarcane is not effected ; the rare earths in plant distribute mainly in leaves, especially the top leaves that are most actively growing parts; spraying the rare earths can promote the plant to absorb the soluble rare earths in soil;and the plant gains the rare earths mainly from soil.