Interaction of Pb and Cd in Soil-Water-Plant System and its Mechanism: I. Pb-Cd Interaction in Red Soil-Plant SystemEnglish Full Text

ZHENG CHUNRONG and CHEN HUAIMAN(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 effected 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.

Keywords：

heavy metal; interaction; Pb and Cd; red soil; wetland rice;

Series：
(D) Agriculture
Subject：
Fundamental Science of Agriculture; Agronomy
Classification Code：
S152

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Interaction of Pb and Cd in Soil-Water-Plant System and its Mechanism: I. Pb-Cd Interaction in Red Soil-Plant SystemEnglish Full Text

ZHENG CHUNRONG and CHEN HUAIMAN(Institute of Soil Science, Academia Sinica, P. O. Box 821, Nanjing 2100O8 China)

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