Mobility and availability of copper in agricultural soils irrigated from water treated with a copper sulfate algaecide
Mobility and availability of copper in agricultural soils irrigated from water treated with a copper sulfate algaecide
In this paper, downward movement and availability of copper in soils irrigated with CuSO4 algaecide treated water were examined using column leaching experiments. Two simulations considering 1 and 10 years irrigation period were conducted at copper application rate of about 18.7 kg CuSO4/ha/year. Effluent copper concentrations and vertical distribution of acid and DTPA-extractable copper in the soil columns were determined. Nearly 99% of the applied copper was retained in the soil with a C e/C 0 values on the order of 10?3. Retention profiles showed that copper was retained in the upper 2 to 3 cm of the soil. However, a significant fraction of the retained copper was detected in available form (DTPA-Cu) suggesting that plants toxicity could be a major limitation for the use of CuSO4 treatment in irrigation water.
copper sulfate, dtpa, cu, soil contamination, phytotoxicity
3-13
Salam, D.
0259e80f-b36e-4e5c-9bda-8fe9f2b95417
El-Fadel, M.
5a565dad-695d-4dd3-a3a6-f02389b82dc4
6 June 2008
Salam, D.
0259e80f-b36e-4e5c-9bda-8fe9f2b95417
El-Fadel, M.
5a565dad-695d-4dd3-a3a6-f02389b82dc4
Salam, D. and El-Fadel, M.
(2008)
Mobility and availability of copper in agricultural soils irrigated from water treated with a copper sulfate algaecide.
Water, Air and Soil Pollution, 195 (1-4), .
(doi:10.1007/s11270-008-9722-z).
Abstract
In this paper, downward movement and availability of copper in soils irrigated with CuSO4 algaecide treated water were examined using column leaching experiments. Two simulations considering 1 and 10 years irrigation period were conducted at copper application rate of about 18.7 kg CuSO4/ha/year. Effluent copper concentrations and vertical distribution of acid and DTPA-extractable copper in the soil columns were determined. Nearly 99% of the applied copper was retained in the soil with a C e/C 0 values on the order of 10?3. Retention profiles showed that copper was retained in the upper 2 to 3 cm of the soil. However, a significant fraction of the retained copper was detected in available form (DTPA-Cu) suggesting that plants toxicity could be a major limitation for the use of CuSO4 treatment in irrigation water.
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Published date: 6 June 2008
Keywords:
copper sulfate, dtpa, cu, soil contamination, phytotoxicity
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Local EPrints ID: 74379
URI: http://eprints.soton.ac.uk/id/eprint/74379
ISSN: 0049-6979
PURE UUID: 24732676-0772-4927-8e0c-6e9ada2e3899
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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 22:33
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Author:
D. Salam
Author:
M. El-Fadel
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