Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil

Detalhes bibliográficos
Autor(a) principal: Matos, Carlos Henrique de Lima
Data de Publicação: 2017
Outros Autores: Melo, Valdinar Ferreira, Uchôa, Sandra Cátia Pereira, Nascimento, Pedro Paulo Ramos Ribeiro, Pereira, Raimundo Almeida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27254
Resumo: Studies on maximum phosphorus adsorption capacity (MPAC) in soils from Roraima State and attributes that interfere with the magnitude of this characteristic are relevant and motivated this study. In this context, topsoil samples (0–0.20 m) from four soil classes (Oxisol–LA and Oxisol–LV [ITÃ, Caracaraí]; Oxisol–LA [Serra da Prata, Mucajaí]; Oxisol–LA and Ultisol–PA [CCA, Boa Vista]; Oxisol–FT [Bonfim] and Alfisol –SN [Surumu, Pacaraima]) representative of Roraima State were used in this study in order to determine the influence of soil physical, chemical, and mineralogical attributes on MPAC. Air-dried soil samples of 2.5 g and 0.01 mol L?1 CaCl2 (25 mL) solution were stirred for 24 h, being added P in the form of KH2PO4 at concentrations of 0–60, 0–80, and 0–110 mg L?1. P was analyzed in the supernatant for determining its adsorbed amount (P-rem). Adsorption values were fitted to the Langmuir isotherm in order to assess MPAC. Correlation tests were performed between MPAC and binding energy, pH, organic matter, clay, and CEC. MPAC values ranged from 14.50 to 527.93 mg kg?1 in the soil. The soils FT–Bonfim and LV–ITÃ presented a higher MPAC. Considering the representative soil classes in the State, MPAC does not correlate with any of the assessed attributes. In the soil classes Oxisol and Ultisol, MPAC has a negative and significant correlation with binding energy.
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spelling Phosphorus adsorption in soils under forest and savanna from Northern Amazon, BrazilAdsorção de fósforo em solos sob floresta e savana do Norte Amazônico, BrasilMaximum phosphorus adsorption capacityCorrelationLangmuir isotherm.Capacidade máxima de adsorção de fósforoCorrelaçãoIsotermas de Langmuir.Studies on maximum phosphorus adsorption capacity (MPAC) in soils from Roraima State and attributes that interfere with the magnitude of this characteristic are relevant and motivated this study. In this context, topsoil samples (0–0.20 m) from four soil classes (Oxisol–LA and Oxisol–LV [ITÃ, Caracaraí]; Oxisol–LA [Serra da Prata, Mucajaí]; Oxisol–LA and Ultisol–PA [CCA, Boa Vista]; Oxisol–FT [Bonfim] and Alfisol –SN [Surumu, Pacaraima]) representative of Roraima State were used in this study in order to determine the influence of soil physical, chemical, and mineralogical attributes on MPAC. Air-dried soil samples of 2.5 g and 0.01 mol L?1 CaCl2 (25 mL) solution were stirred for 24 h, being added P in the form of KH2PO4 at concentrations of 0–60, 0–80, and 0–110 mg L?1. P was analyzed in the supernatant for determining its adsorbed amount (P-rem). Adsorption values were fitted to the Langmuir isotherm in order to assess MPAC. Correlation tests were performed between MPAC and binding energy, pH, organic matter, clay, and CEC. MPAC values ranged from 14.50 to 527.93 mg kg?1 in the soil. The soils FT–Bonfim and LV–ITÃ presented a higher MPAC. Considering the representative soil classes in the State, MPAC does not correlate with any of the assessed attributes. In the soil classes Oxisol and Ultisol, MPAC has a negative and significant correlation with binding energy.Estudos sobre capacidade máxima de adsorção de fósforo (CMAP) em solos de Roraima e atributos que interferem na magnitude dessa característica são relevantes e motivaram esse trabalho. Nesse contexto, amostras da camada superficial (0-0,20 m) de quatro classes de solos: Latossolo Amarelo - LA e Latossolo Vermelho - LV (ITÃ, Caracaraí); Latossolo Amarelo - LA (Serra da Prata, Mucajaí); Latossolo Amarelo - LA e Argissolo Amarelo - PA (CCA, Boa Vista-RR); Plintossolo Argilúvico – FT (Bonfim) e Planossolo Nátrico - SN (Surumu, Pacaraima) representativos do estado de Roraima, foram utilizadas no presente trabalho, com a finalidade de determinar a influência de atributos físicos, químicos e da mineralogia dos solos sobre a CMAP. Amostras de 2,5 g de TFSA (terra fina seca ao ar) foram mantidas em contato com soluções de CaCl2 0,01 mol L-1 (25 mL), mediante agitação por 24 h, as quais foram adicionados fósforo (P), na forma de KH2PO4, nas concentrações de 0-60, 0-80 e 0-110 mg L-1. O P foi analisado no sobrenadante para a determinação da quantidade adsorvida (P-rem). Para avaliar a capacidade máxima de adsorção de fósforo (CMAP), os valores de adsorção foram ajustados à isoterma de Langmuir. Foram realizados testes de correlação entre CMAP e energia de ligação, pH, matéria orgânica, argila e CTC. Os valores da CMAP situaram-se entre 14,50 e 527,93 mg kg-1 de P no solo. Os solos FT (Bonfim) e LV (ITÃ) apresentaram maior CMAP. Considerando as classes de solos representativas do Estado, a CMAP não se correlaciona com nenhum dos atributos avaliados. Nas classes Latossolo e Argissolo, a CMAP tem correlação negativa e significativa com a energia de ligação.UEL2017-10-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empírica de Campo e LaboratórioPesquisa Empírica de Campo e Laboratórioapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2725410.5433/1679-0359.2017v38n5p2909Semina: Ciências Agrárias; Vol. 38 No. 5 (2017); 2909-2920Semina: Ciências Agrárias; v. 38 n. 5 (2017); 2909-29201679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27254/21793Copyright (c) 2017 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessMatos, Carlos Henrique de LimaMelo, Valdinar FerreiraUchôa, Sandra Cátia PereiraNascimento, Pedro Paulo Ramos RibeiroPereira, Raimundo Almeida2022-10-21T13:39:30Zoai:ojs.pkp.sfu.ca:article/27254Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-21T13:39:30Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil
Adsorção de fósforo em solos sob floresta e savana do Norte Amazônico, Brasil
title Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil
spellingShingle Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil
Matos, Carlos Henrique de Lima
Maximum phosphorus adsorption capacity
Correlation
Langmuir isotherm.
Capacidade máxima de adsorção de fósforo
Correlação
Isotermas de Langmuir.
title_short Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil
title_full Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil
title_fullStr Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil
title_full_unstemmed Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil
title_sort Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil
author Matos, Carlos Henrique de Lima
author_facet Matos, Carlos Henrique de Lima
Melo, Valdinar Ferreira
Uchôa, Sandra Cátia Pereira
Nascimento, Pedro Paulo Ramos Ribeiro
Pereira, Raimundo Almeida
author_role author
author2 Melo, Valdinar Ferreira
Uchôa, Sandra Cátia Pereira
Nascimento, Pedro Paulo Ramos Ribeiro
Pereira, Raimundo Almeida
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Matos, Carlos Henrique de Lima
Melo, Valdinar Ferreira
Uchôa, Sandra Cátia Pereira
Nascimento, Pedro Paulo Ramos Ribeiro
Pereira, Raimundo Almeida
dc.subject.por.fl_str_mv Maximum phosphorus adsorption capacity
Correlation
Langmuir isotherm.
Capacidade máxima de adsorção de fósforo
Correlação
Isotermas de Langmuir.
topic Maximum phosphorus adsorption capacity
Correlation
Langmuir isotherm.
Capacidade máxima de adsorção de fósforo
Correlação
Isotermas de Langmuir.
description Studies on maximum phosphorus adsorption capacity (MPAC) in soils from Roraima State and attributes that interfere with the magnitude of this characteristic are relevant and motivated this study. In this context, topsoil samples (0–0.20 m) from four soil classes (Oxisol–LA and Oxisol–LV [ITÃ, Caracaraí]; Oxisol–LA [Serra da Prata, Mucajaí]; Oxisol–LA and Ultisol–PA [CCA, Boa Vista]; Oxisol–FT [Bonfim] and Alfisol –SN [Surumu, Pacaraima]) representative of Roraima State were used in this study in order to determine the influence of soil physical, chemical, and mineralogical attributes on MPAC. Air-dried soil samples of 2.5 g and 0.01 mol L?1 CaCl2 (25 mL) solution were stirred for 24 h, being added P in the form of KH2PO4 at concentrations of 0–60, 0–80, and 0–110 mg L?1. P was analyzed in the supernatant for determining its adsorbed amount (P-rem). Adsorption values were fitted to the Langmuir isotherm in order to assess MPAC. Correlation tests were performed between MPAC and binding energy, pH, organic matter, clay, and CEC. MPAC values ranged from 14.50 to 527.93 mg kg?1 in the soil. The soils FT–Bonfim and LV–ITÃ presented a higher MPAC. Considering the representative soil classes in the State, MPAC does not correlate with any of the assessed attributes. In the soil classes Oxisol and Ultisol, MPAC has a negative and significant correlation with binding energy.
publishDate 2017
dc.date.none.fl_str_mv 2017-10-03
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27254/21793
dc.rights.driver.fl_str_mv Copyright (c) 2017 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Semina: Ciências Agrárias
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dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 38 No. 5 (2017); 2909-2920
Semina: Ciências Agrárias; v. 38 n. 5 (2017); 2909-2920
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