Effect of Biochar on Chemical Forms of Cd in Rice

DOI

10.2991/itms-15.2015.466How to use a DOI?

Keywords

Cd; biochar; chemical forms; rice.

Abstract

A pot experiment of ‘Shennong 9816’ treated by 0, 2 mg kg-1 cadmium(Cd) and 0, 1.4, 14 g kg-1 biochar were conducted to investigate the effect of biochar on the chemical forms of Cd in rice. The sequence chemical extraction method was used to study chemical forms of Cd in roots, stems and leaves of rice. Results indicated that the highest Cd concentration in vegetative tissues was F3 (extracted by 1 M Nacl), followed by F4 and F5 (extracted by 2% HAC and 0.6 M HCl, respectively). Biochar reduced Cd in F1 and F2 (extracted by 80% ethanol and d-H20, respectively). In conclusion, biochar could reduce the pollution risk of Cd in the food chain, however, the effect of biochar detoxification had not worked from the total Cd contents of rice organs at tillering stage.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ying Cao
AU  - Xueyan Zhang
AU  - Jun Meng
AU  - Tianhong Zhao
AU  - Henan Zhang
PY  - 2015/11
DA  - 2015/11
TI  - Effect of Biochar on Chemical Forms of Cd in Rice
BT  - Proceedings of the 2015 International Conference on Industrial Technology and Management Science
PB  - Atlantis Press
SP  - 1902
EP  - 1906
SN  - 2352-538X
UR  - https://doi.org/10.2991/itms-15.2015.466
DO  - 10.2991/itms-15.2015.466
ID  - Cao2015/11
ER  -