Pedosphere 6(1): 63--72, 1996
ISSN 1002-0160/CN 32-1315/P
©1996 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Interaction of Pb and Cd in soil-water-plant system and its mechanism: Ⅰ. Pb-Cd interaction in red soil-plant system |
| ZHENG Chun-Rong and CHEN Huai-Man |
| Institute of Soil Science, Academia Sinica, P. O. Box 821, Nanjing 2100O8 China |
| ABSTRACT |
| A study on the effect of Pb-Cd interaction on plant growth and on the chemistry of elements in plants was conducted under greenhouse condition with red soil-wetland rice system in different growth stage. The results showed that Pb-Cd interactions on growth and metal uptake varied with different growth stages and chemical compounds added. The plant height and the root weight were markedly affected by Pb-Cd interiction in the young stage but not in the ripening stage of rice at the treatments of PbCl2 and CdCl2 added. However, the weight of rice straw in the ripening stage was significantly affected by Pb-Cd interaction with the treatments of Pb(OAc)2 and CdCl2. The chemistry of elements in plants also depended on Pb-Cd interaction in varying degrees on account of different plant parts and growth stage. It seems that Pb-Cd interaction occurred not only in roots but also in other parts of wetland rice. |
| Key Words: heavy metal, interaction, Pb and Cd, red soil, wetland rice |
| Citation: Zheng, C. R. and Chen, H. M. 1996. Interaction of Pb and Cd in soil-water-plant system and its mechanism: Ⅰ. Pb-Cd interaction in red soil-plant system. Pedosphere. 6(1): 63-72. |
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