Adsorption and release of micronutrients by humin extracted from peat samples
The objective of this work was to investigate the adsorption of micronutrients in humin and to verify the ability to release these elements in water. The first step was to determine the adsorption capacity of humin for several essential plant micronutrients and check the kinetic parameters. The order of adsorption was Zn < Ni < Co < Mn < Mo < Cu < Fe, whereas Zn showed maximum values of ca. 2.5 mg g-1 and Fe values of ca. 0.5 mg g-1 for systems containing 1 g of humin. Iron presented higher percentages of release (ca. 100%) and Co the lowest percentages (0.14%). The findings suggested that the use of humin enriched with micronutrients can be a promising alternative for the fertilization of agricultural soils, with the additional benefit of incorporating organic matter present in the form of humic substances into the soil and improving the agricultural productivity.
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Sociedade Brasileira de Química
2013
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oai:scielo:S0103-505320130005000022013-06-13Adsorption and release of micronutrients by humin extracted from peat samplesGoveia,DanielleMelo,Camila de A.Oliveira,Lilian K. deFraceto,Leonardo F.Rocha,Julio CesarDias Filho,Newton LuizRosa,André Henrique adsorption desorption humin micronutrients The objective of this work was to investigate the adsorption of micronutrients in humin and to verify the ability to release these elements in water. The first step was to determine the adsorption capacity of humin for several essential plant micronutrients and check the kinetic parameters. The order of adsorption was Zn < Ni < Co < Mn < Mo < Cu < Fe, whereas Zn showed maximum values of ca. 2.5 mg g-1 and Fe values of ca. 0.5 mg g-1 for systems containing 1 g of humin. Iron presented higher percentages of release (ca. 100%) and Co the lowest percentages (0.14%). The findings suggested that the use of humin enriched with micronutrients can be a promising alternative for the fertilization of agricultural soils, with the additional benefit of incorporating organic matter present in the form of humic substances into the soil and improving the agricultural productivity.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society v.24 n.5 20132013-05-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000500002en10.5935/0103-5053.20130092 |
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Goveia,Danielle Melo,Camila de A. Oliveira,Lilian K. de Fraceto,Leonardo F. Rocha,Julio Cesar Dias Filho,Newton Luiz Rosa,André Henrique |
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Goveia,Danielle Melo,Camila de A. Oliveira,Lilian K. de Fraceto,Leonardo F. Rocha,Julio Cesar Dias Filho,Newton Luiz Rosa,André Henrique Adsorption and release of micronutrients by humin extracted from peat samples |
author_facet |
Goveia,Danielle Melo,Camila de A. Oliveira,Lilian K. de Fraceto,Leonardo F. Rocha,Julio Cesar Dias Filho,Newton Luiz Rosa,André Henrique |
author_sort |
Goveia,Danielle |
title |
Adsorption and release of micronutrients by humin extracted from peat samples |
title_short |
Adsorption and release of micronutrients by humin extracted from peat samples |
title_full |
Adsorption and release of micronutrients by humin extracted from peat samples |
title_fullStr |
Adsorption and release of micronutrients by humin extracted from peat samples |
title_full_unstemmed |
Adsorption and release of micronutrients by humin extracted from peat samples |
title_sort |
adsorption and release of micronutrients by humin extracted from peat samples |
description |
The objective of this work was to investigate the adsorption of micronutrients in humin and to verify the ability to release these elements in water. The first step was to determine the adsorption capacity of humin for several essential plant micronutrients and check the kinetic parameters. The order of adsorption was Zn < Ni < Co < Mn < Mo < Cu < Fe, whereas Zn showed maximum values of ca. 2.5 mg g-1 and Fe values of ca. 0.5 mg g-1 for systems containing 1 g of humin. Iron presented higher percentages of release (ca. 100%) and Co the lowest percentages (0.14%). The findings suggested that the use of humin enriched with micronutrients can be a promising alternative for the fertilization of agricultural soils, with the additional benefit of incorporating organic matter present in the form of humic substances into the soil and improving the agricultural productivity. |
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Sociedade Brasileira de Química |
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2013 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000500002 |
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