Pedosphere 10(1): 31--36, 2000
ISSN 1002-0160/CN 32-1315/P
©2000 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Chromium(Ⅵ) reduction in wheat rhizosphere |
| CHEN Neng-Chang1, S. KANAZAWA2 and T. HORIGUCHI1 |
1 Lab Plant Nutrition, Faculty of Agriculture, Kagoshima University (Japan)
2 Division of Bioresource and Bioenvironmental Science Graduate School, Kyushu University (Japan) |
| ABSTRACT |
| Reduction of Cr(Ⅵ) to Cr(Ⅲ) was studied in a fresh wheat rhizosphere soil (kuroboku, high humic Andosol) pretreated with a basal fertilizer consisting of (NH4)2SO4, P2O5 and KH2PO4 and with K2Cr2O7 by using a rhizobox system. The rhizosphere exerted a positive effect on Cr(Ⅵ) reduction. Part of the reason was the decrease of pH in the rhizosphere due to application of (NH4)2SO4, implying that application of physiologically acid fertilizers would reduce Cr(Ⅵ) toxicity to plants. |
| Key Words: Cr, reduction, rhizosphere, wheat |
| Citation: Chen, N. C., Kanazawa, S. and Horiguchi, T. 2000. Chromium(Ⅵ) reduction in wheat rhizosphere. Pedosphere. 10(1): 31-36. |
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