Record ID No. |
606 |
Author(s) |
Rufyikiri, G., Wannijn, J., Wang, L., Thiry, Y* , 2006 |
Affiliation |
*CEN SCK, Fdn Publ Util, Radiat Protect Res Dept, Belgian Nuclear Researc Center,Radioecol Sect, Boeretang 200, B-2400 Mol, Belgium |
Title |
Effects of phosphorus fertilization on the availability and uptake of uranium and nutrients by plants grown on soil derived from uranium mining debris |
Source. Vol.(no):Page |
Environmental pollution. 141(3):420-427p. |
Categories |
Mycorrhiza General |
Subjects |
Pollution |
Sub-subjects |
Soil pollution |
Host |
Trifolium, Hordeum vulgare |
Organism |
Microbes |
Country |
Belgium, Europe |
Abstracts |
Subterranean clover and barley were grown on a soil derived from uranium mining debris and fertilized with phosphate as a U immobilizing additive for in situ remediation, We investigated the beneficial effect of P fertilization in the range 0-500 mg P kg(-1) soil in terms of U extractability, plant biomass production and U uptake. Increasing P in the mining debris caused a significant decrease of the water-soluble U and NH4-Ac extractable U at pH 7 and 5. For both plant species, P fertilization considerably increased root and shoot dry matter up to a maximum observed for soil receiving 100 mg P kg(-1) while the soil-to-plant transfer of U was regularly decreased by increasing P content in soil. These observations show that P fertilization represents an in situ practical option to facilitate the revegetation of U-mining heaps and to reduce the risks of biota exposure to U contamination. |