Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern Iran

Thirty-two surface soil samples with different physical and chemical properties were collected from calcareous soils of arid regions of Khuzestan Province, Southwestern Iran. Actual and potential cadmium (Cd) bioavailability was assessed by means of a greenhouse study, two different single extractio...

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Autores principales:	Khanmirzaei,A, Bazargan,K, Amir Moezzi,A, Richards,B. K, Shahbazi,K
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2013
Materias:	contamination cadmium sequential fractionation wheat
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100014
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spelling	oai:scielo:S0718-951620130001000142014-09-16Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern IranKhanmirzaei,ABazargan,KAmir Moezzi,ARichards,B. KShahbazi,K contamination cadmium sequential fractionation wheat Thirty-two surface soil samples with different physical and chemical properties were collected from calcareous soils of arid regions of Khuzestan Province, Southwestern Iran. Actual and potential cadmium (Cd) bioavailability was assessed by means of a greenhouse study, two different single extractions: 0.005 DTPA and 0.05 EDTA and two sequential extraction procedures: modified five-step Tessier method and the three-step BCR method. Extraction results were correlated with grain Cd uptake by Durum wheat (Triticum durum L. ) grown under greenhouse conditions. Cadmium in the durum grain ranged from 0.064 to 0.273 mg kg-1. The results showed better suitability of DTPA extraction in these highly carbonated soils than EDTA extraction for predicting Cd phytoavailability. DTPA -extractable Cd was positively related to soil electrical conductivity (p < 0.01, r = 0.65). Cadmium was predominantly associated with carbonate fraction in these soils (Tessier procedure 40% and BCR 44%).1 M NH4OAc which extracted the soluble + exchangeable fraction in the Tessier scheme may also provide useful information on Cd availability in studied soils.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.13 n.1 20132013-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100014en10.4067/S0718-95162013005000014
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	contamination cadmium sequential fractionation wheat
spellingShingle	contamination cadmium sequential fractionation wheat Khanmirzaei,A Bazargan,K Amir Moezzi,A Richards,B. K Shahbazi,K Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern Iran
description	Thirty-two surface soil samples with different physical and chemical properties were collected from calcareous soils of arid regions of Khuzestan Province, Southwestern Iran. Actual and potential cadmium (Cd) bioavailability was assessed by means of a greenhouse study, two different single extractions: 0.005 DTPA and 0.05 EDTA and two sequential extraction procedures: modified five-step Tessier method and the three-step BCR method. Extraction results were correlated with grain Cd uptake by Durum wheat (Triticum durum L. ) grown under greenhouse conditions. Cadmium in the durum grain ranged from 0.064 to 0.273 mg kg-1. The results showed better suitability of DTPA extraction in these highly carbonated soils than EDTA extraction for predicting Cd phytoavailability. DTPA -extractable Cd was positively related to soil electrical conductivity (p < 0.01, r = 0.65). Cadmium was predominantly associated with carbonate fraction in these soils (Tessier procedure 40% and BCR 44%).1 M NH4OAc which extracted the soluble + exchangeable fraction in the Tessier scheme may also provide useful information on Cd availability in studied soils.
author	Khanmirzaei,A Bazargan,K Amir Moezzi,A Richards,B. K Shahbazi,K
author_facet	Khanmirzaei,A Bazargan,K Amir Moezzi,A Richards,B. K Shahbazi,K
author_sort	Khanmirzaei,A
title	Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern Iran
title_short	Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern Iran
title_full	Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern Iran
title_fullStr	Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern Iran
title_full_unstemmed	Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern Iran
title_sort	single and sequential extraction of cadmium in some highly calcareous soils of southwestern iran
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100014
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Single and Sequential Extraction of Cadmium in Some Highly Calcareous Soils of Southwestern Iran

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