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Copper and zinc speciation in soils from paddy cultivation areas in Kelantan, Malaysia.


Citation

Sow, Ai Yin and Ismail, Ahmad and Zulkifli, Syaizwan Zahmir (2012) Copper and zinc speciation in soils from paddy cultivation areas in Kelantan, Malaysia. Acta Biologica Malaysiana, 1 (1). pp. 26-35. ISSN 2232-1675

Abstract

The purpose of this study was to investigate the present concentration of copper (Cu) and zinc (Zn), and factors controlling the bioavailability of metals in paddy cultivation soils collected from Kelantan. Cu and Zn levels in soil samples were extracted by using the sequential extraction procedures, which are namely easily or freely, leachable and exchangeable (EFLE), acid-reducible, oxidisable-organic and resistant fractions. The highest concentration of Cu was found in the oxidisable-organic fraction (19.77±1.89 µg/g) for March, while the resistant fraction (18.29±0.87 µg/g) was the highest in April. In contrast, Zn concentration was the highest in the resistant fraction for both months. Statistically, Cu and Zn results showed a non-significant difference among these two months in the fraction of paddy soil studied. These results indicate a low bioavailability of Cu and Zn in the paddy cultivation soils. Therefore, the anthropogenic-based Cu and Zn in the paddy cultivation areas of Kelantan are expected to originate from applications of chemical fertilizers and pesticide, not from the lithogenic sources.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.7593/abm/1.1.26
Publisher: Universiti Putra Malaysia
Keywords: Cu and Zn; Bioavailability; Soils; Paddy cultivation; Anthropogenic.
Depositing User: Nur Farahin Ramli
Date Deposited: 21 Nov 2013 00:32
Last Modified: 17 Feb 2016 02:55
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.7593/abm/1.1.26
URI: http://psasir.upm.edu.my/id/eprint/25303
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