Assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soil

Various single extractants (EDTA, DTPA, CaCl2, NaNO3 and NH4NO3) and the first step of Community Bureau of Reference (BCR1) method were used to evaluate the immobilization of Cd in contaminated acidic paddy soil by different amendments. The extractability of Cd in amended soil changed in the followi...

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Main Authors: Q.H. Zhu, D.Y. Huang, S.L. Liu, Z.C. Luo, H.H. Zhu, B. Zhou, M. Lei, Z.X. Rao, X.L. Cao
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2012-02-01
Series:Plant, Soil and Environment
Subjects:
Online Access:https://pse.agriculturejournals.cz/artkey/pse-201202-0007_assessment-of-single-extraction-methods-for-evaluating-the-immobilization-effect-of-amendments-on-cadmium-in-co.php
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author Q.H. Zhu
D.Y. Huang
S.L. Liu
Z.C. Luo
H.H. Zhu
B. Zhou
M. Lei
Z.X. Rao
X.L. Cao
author_facet Q.H. Zhu
D.Y. Huang
S.L. Liu
Z.C. Luo
H.H. Zhu
B. Zhou
M. Lei
Z.X. Rao
X.L. Cao
author_sort Q.H. Zhu
collection DOAJ
description Various single extractants (EDTA, DTPA, CaCl2, NaNO3 and NH4NO3) and the first step of Community Bureau of Reference (BCR1) method were used to evaluate the immobilization of Cd in contaminated acidic paddy soil by different amendments. The extractability of Cd in amended soil changed in the following order: EDTA ≍ BCR1 > DTPA > NH4NO3 ≍ CaCl2 > NaNO3. A simple correlation analysis indicated that the BCR1, CaCl2, NH4NO3, and NaNO3 methods are the best suited methods for predicting changes in the phytoavailability to rice of Cd in soil (r = 0.680 to 0.828, P < 0.001), followed by the DTPA extraction procedure (r = 0.543 to 0.666, P < 0.01). However, non-significant correlations were observed between soil EDTA-extractable Cd and Cd accumulated in rice. Accordingly, the BCR1, CaCl2, NH4NO3, and NaNO3 extraction procedures are recommended for evaluating the immobilization of Cd in contaminated acidic paddy soil.
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spelling doaj.art-0e1adeb2e104492da38d32a19faf430e2023-02-23T03:45:52ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682012-02-015829810310.17221/358/2011-PSEpse-201202-0007Assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soilQ.H. Zhu0D.Y. Huang1S.L. Liu2Z.C. Luo3H.H. Zhu4B. Zhou5M. Lei6Z.X. Rao7X.L. Cao8Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, P.R. ChinaKey Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, P.R. ChinaKey Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, P.R. ChinaHunan Soil and Fertilizer Institute, Changsha, Hunan, P.R. ChinaKey Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, P.R. ChinaKey Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, P.R. ChinaKey Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, P.R. ChinaKey Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, P.R. ChinaKey Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, P.R. ChinaVarious single extractants (EDTA, DTPA, CaCl2, NaNO3 and NH4NO3) and the first step of Community Bureau of Reference (BCR1) method were used to evaluate the immobilization of Cd in contaminated acidic paddy soil by different amendments. The extractability of Cd in amended soil changed in the following order: EDTA ≍ BCR1 > DTPA > NH4NO3 ≍ CaCl2 > NaNO3. A simple correlation analysis indicated that the BCR1, CaCl2, NH4NO3, and NaNO3 methods are the best suited methods for predicting changes in the phytoavailability to rice of Cd in soil (r = 0.680 to 0.828, P < 0.001), followed by the DTPA extraction procedure (r = 0.543 to 0.666, P < 0.01). However, non-significant correlations were observed between soil EDTA-extractable Cd and Cd accumulated in rice. Accordingly, the BCR1, CaCl2, NH4NO3, and NaNO3 extraction procedures are recommended for evaluating the immobilization of Cd in contaminated acidic paddy soil.https://pse.agriculturejournals.cz/artkey/pse-201202-0007_assessment-of-single-extraction-methods-for-evaluating-the-immobilization-effect-of-amendments-on-cadmium-in-co.phpcdphytoavailabilityextractantriceedta
spellingShingle Q.H. Zhu
D.Y. Huang
S.L. Liu
Z.C. Luo
H.H. Zhu
B. Zhou
M. Lei
Z.X. Rao
X.L. Cao
Assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soil
Plant, Soil and Environment
cd
phytoavailability
extractant
rice
edta
title Assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soil
title_full Assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soil
title_fullStr Assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soil
title_full_unstemmed Assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soil
title_short Assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soil
title_sort assessment of single extraction methods for evaluating the immobilization effect of amendments on cadmium in contaminated acidic paddy soil
topic cd
phytoavailability
extractant
rice
edta
url https://pse.agriculturejournals.cz/artkey/pse-201202-0007_assessment-of-single-extraction-methods-for-evaluating-the-immobilization-effect-of-amendments-on-cadmium-in-co.php
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