Effects of Natural Organic Acids on Growth of Maize and Uptake of Chromium by Maize in Chromium Contaminated Soil

Guo Ling Cheng; Zhi Fei Ma; Qun Hui Wang

doi:10.4028/www.scientific.net/AMR.281.21

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 281Effects of Natural Organic Acids on Growth of...

Effects of Natural Organic Acids on Growth of Maize and Uptake of Chromium by Maize in Chromium Contaminated Soil

Abstract:

Seven natural organic acids were added to moderate artiﬁcial Cr-contaminated soil to investigate the effects of natural organic acids on growth of maize and phytoextraction of chromium by maize. The results showed that most organic acids promoted the height growth of maize except for humic acid in Cr-contaminated soil. The total dry weight increased only with oxalic acid treatment. The natural organic acids can change the dry matter distribution of the shoot and the root. The total uptake of chromium by the shoots of maize showed the highest with citric acid treatment (p<0.01), followed by succinic acid, tartaric acid and malic acid treatment, indicate that citric acid has the potential to be used for phytoremediation of Cr-contaminated soil.

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Periodical:

Advanced Materials Research (Volume 281)

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21-24

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.281.21

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Online since:

July 2011

Authors:

Guo Ling Cheng, Zhi Fei Ma, Qun Hui Wang

Keywords:

Chromium, Growth, Maize, Organic Acid, Phytoextraction, Soil

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