Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soils

Twenty surface (0-15 cm) samples of acidic soils were analysed for different chemical fractions of soil Cu namely; water soluble (WS), exchangeable (EX), lead displaceable (Pb-disp.), acid soluble (AS), Mn oxide occluded (MnOX), organically bound (OB), amorphous Fe oxide occluded (AFeOX), crystallin...

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Autores principales:	Joshi,D, Srivastava,P. C, Dwivedi,R, Pachauri,S. P, Shukla,A.K
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2015
Materias:	Chemical fractions maize soil extractants copper uptake
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400016
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spelling	oai:scielo:S0718-951620150004000162016-01-14Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soilsJoshi,DSrivastava,P. CDwivedi,RPachauri,S. PShukla,A.K Chemical fractions maize soil extractants copper uptake Twenty surface (0-15 cm) samples of acidic soils were analysed for different chemical fractions of soil Cu namely; water soluble (WS), exchangeable (EX), lead displaceable (Pb-disp.), acid soluble (AS), Mn oxide occluded (MnOX), organically bound (OB), amorphous Fe oxide occluded (AFeOX), crystalline Fe oxide occluded (CFeOX), residual (RES) and also for soil extractable Cu using DTPA (pH 7.3), DTPA (pH 5.3), AB-DTPA (pH 7.6), Mehlich 3 (pH 2.0), Modified Olsen, 0.005 MCaCl2, 1 M MgCl2 extractants and ion exchange resins to understand the significance of different chemical fractions of Cu and suitability of soil extractant for predicting Cu availability to maize plants. Chemical fractions of Cu in acidic soils could be arranged in the following order: RES > MnOX > AFeOX > OB > CFeOX > AS > EX > Pb-disp. > WS. Chemical fractions of Cu in acidic soils and Cu extracted by the examined soil extractants were correlated with general soil properties. Water soluble (WS) and organically bound (OB) fractions of soil Cu showed significant and positive correlation with Cu uptake by maize. Among different examined soil extractants, DTPA (pH=5.3) and Mehlich 3 (pH = 2.0) showed significant and positive correlation with the dry matter yield, Cu concentration and uptake by maize plants in acidic soils.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.15 n.4 20152015-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400016en10.4067/S0718-95162015005000071
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chemical fractions maize soil extractants copper uptake
spellingShingle	Chemical fractions maize soil extractants copper uptake Joshi,D Srivastava,P. C Dwivedi,R Pachauri,S. P Shukla,A.K Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soils
description	Twenty surface (0-15 cm) samples of acidic soils were analysed for different chemical fractions of soil Cu namely; water soluble (WS), exchangeable (EX), lead displaceable (Pb-disp.), acid soluble (AS), Mn oxide occluded (MnOX), organically bound (OB), amorphous Fe oxide occluded (AFeOX), crystalline Fe oxide occluded (CFeOX), residual (RES) and also for soil extractable Cu using DTPA (pH 7.3), DTPA (pH 5.3), AB-DTPA (pH 7.6), Mehlich 3 (pH 2.0), Modified Olsen, 0.005 MCaCl2, 1 M MgCl2 extractants and ion exchange resins to understand the significance of different chemical fractions of Cu and suitability of soil extractant for predicting Cu availability to maize plants. Chemical fractions of Cu in acidic soils could be arranged in the following order: RES > MnOX > AFeOX > OB > CFeOX > AS > EX > Pb-disp. > WS. Chemical fractions of Cu in acidic soils and Cu extracted by the examined soil extractants were correlated with general soil properties. Water soluble (WS) and organically bound (OB) fractions of soil Cu showed significant and positive correlation with Cu uptake by maize. Among different examined soil extractants, DTPA (pH=5.3) and Mehlich 3 (pH = 2.0) showed significant and positive correlation with the dry matter yield, Cu concentration and uptake by maize plants in acidic soils.
author	Joshi,D Srivastava,P. C Dwivedi,R Pachauri,S. P Shukla,A.K
author_facet	Joshi,D Srivastava,P. C Dwivedi,R Pachauri,S. P Shukla,A.K
author_sort	Joshi,D
title	Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soils
title_short	Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soils
title_full	Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soils
title_fullStr	Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soils
title_full_unstemmed	Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soils
title_sort	chemical speciation and suitability of soil extractants for assessing cu availability to maize (zea mays l.) in acidic soils
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400016
work_keys_str_mv	AT joshid chemicalspeciationandsuitabilityofsoilextractantsforassessingcuavailabilitytomaizezeamayslinacidicsoils AT srivastavapc chemicalspeciationandsuitabilityofsoilextractantsforassessingcuavailabilitytomaizezeamayslinacidicsoils AT dwivedir chemicalspeciationandsuitabilityofsoilextractantsforassessingcuavailabilitytomaizezeamayslinacidicsoils AT pachaurisp chemicalspeciationandsuitabilityofsoilextractantsforassessingcuavailabilitytomaizezeamayslinacidicsoils AT shuklaak chemicalspeciationandsuitabilityofsoilextractantsforassessingcuavailabilitytomaizezeamayslinacidicsoils
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Chemical speciation and suitability of soil extractants for assessing Cu availability to maize (Zea mays L.) in acidic soils

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