Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils

The objectives of this paper are to investigate the response of chickpea growing on two iron (Fe) chlorosis-inducing calcareous soils, with different Fe availability, generously supplied with phosphate (P), and to evaluate the effectiveness of a mixture of organic acids (citric, oxalic and malic) to...

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Autores principales:	Sánchez-Rodríguez,A.R, del Campillo,M. C, Torrent,J, Jones,D.L
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2014
Materias:	Calcareous soils iron oxides citrate malate oxalate phosphate fertilization
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000200004
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spelling	oai:scielo:S0718-951620140002000042014-07-30Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soilsSánchez-Rodríguez,A.Rdel Campillo,M. CTorrent,JJones,D.L Calcareous soils iron oxides citrate malate oxalate phosphate fertilization The objectives of this paper are to investigate the response of chickpea growing on two iron (Fe) chlorosis-inducing calcareous soils, with different Fe availability, generously supplied with phosphate (P), and to evaluate the effectiveness of a mixture of organic acids (citric, oxalic and malic) to alleviate Fe chlorosis symptoms. Application of P (+P treatment) aggravated Fe deficiency irrespective of the soil. Phosphorus-induced Fe chlorosis was alleviated when organic acids were also applied to the soil (+P+OA treatment), which was reflected in increased leaf chlorophyll concentration and decreased root ferric reductase activity in the plants growing on both soils; the effect was stronger for plants grown on the soil with the lowest Fe-available content. However, Fe chlorosis was still more severe than in the control (-P treatment) plants. The need of -P treatment plants to explore soil in order to take up nutrients is reflected in their root architecture, reduced root diameter and increased length, surface and volume relative to +P and +P+OA roots. Organic acids alleviate Fe chlorosis in function of non crystalline Fe oxides content but inhibit the root response mechanisms as a consequence of increasing Fe concentration in the soil solution.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.14 n.2 20142014-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000200004en10.4067/S0718-95162014005000024
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Calcareous soils iron oxides citrate malate oxalate phosphate fertilization
spellingShingle	Calcareous soils iron oxides citrate malate oxalate phosphate fertilization Sánchez-Rodríguez,A.R del Campillo,M. C Torrent,J Jones,D.L Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils
description	The objectives of this paper are to investigate the response of chickpea growing on two iron (Fe) chlorosis-inducing calcareous soils, with different Fe availability, generously supplied with phosphate (P), and to evaluate the effectiveness of a mixture of organic acids (citric, oxalic and malic) to alleviate Fe chlorosis symptoms. Application of P (+P treatment) aggravated Fe deficiency irrespective of the soil. Phosphorus-induced Fe chlorosis was alleviated when organic acids were also applied to the soil (+P+OA treatment), which was reflected in increased leaf chlorophyll concentration and decreased root ferric reductase activity in the plants growing on both soils; the effect was stronger for plants grown on the soil with the lowest Fe-available content. However, Fe chlorosis was still more severe than in the control (-P treatment) plants. The need of -P treatment plants to explore soil in order to take up nutrients is reflected in their root architecture, reduced root diameter and increased length, surface and volume relative to +P and +P+OA roots. Organic acids alleviate Fe chlorosis in function of non crystalline Fe oxides content but inhibit the root response mechanisms as a consequence of increasing Fe concentration in the soil solution.
author	Sánchez-Rodríguez,A.R del Campillo,M. C Torrent,J Jones,D.L
author_facet	Sánchez-Rodríguez,A.R del Campillo,M. C Torrent,J Jones,D.L
author_sort	Sánchez-Rodríguez,A.R
title	Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils
title_short	Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils
title_full	Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils
title_fullStr	Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils
title_full_unstemmed	Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils
title_sort	organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000200004
work_keys_str_mv	AT sanchezrodriguezar organicacidsalleviateironchlorosisinchickpeagrownontwopfertilizedsoils AT delcampillomc organicacidsalleviateironchlorosisinchickpeagrownontwopfertilizedsoils AT torrentj organicacidsalleviateironchlorosisinchickpeagrownontwopfertilizedsoils AT jonesdl organicacidsalleviateironchlorosisinchickpeagrownontwopfertilizedsoils
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Organic acids alleviate iron chlorosis in chickpea grown on two p-fertilized soils

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