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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Florestas. |
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Data corrente: |
30/03/2021 |
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Data da última atualização: |
31/03/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MORALES, M. M.; COMERFORD, n. b.; BEHLING, M.; ABREU, D. C. de; GUERRINI, I. A. |
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Afiliação: |
MARINA MOURA MORALES, CNPF; NICHOLAS BRIAN COMERFORD, University of Hawaii; MAUREL BEHLING, CPAMT; DANIEL CARNEIRO DE ABREU, UFMT; IRAÊ AMARAL GUERRINI, UNESP. |
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Título: |
Biochar chemistry in a weathered tropical soil: kinetics of phosphorus sorption. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agriculture, v. 11, n. 4, 295, 2021. 13 p. |
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DOI: |
https://doi.org/10.3390/agriculture11040295 |
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Idioma: |
Inglês |
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Conteúdo: |
The phosphorus (P) chemistry of biochar (BC)-amended soils is poorly understood. This statement is based on the lack of published research attempting a comprehensive characterization of biochar?s influence on P sorption. Therefore, this study addressed the kinetic limitations of these processes. This was accomplished using a fast pyrolysis biochar made from a mix of waste materials applied to a highly weathered Latossolo Vermelho distrofico (Oxisol) from São Paulo, Brazil. Standard method (batch method) was used. The sorption kinetic studies indicated that P sorption in both cases, soil (S) and soil-biochar (SBC), had a relatively fast initial reaction between 0 to 5 min. This may have happened because adding biochar to the soil decreased P sorption capacity compared to the mineral soil alone. Presumably, this is a result of: (i) Inorganic phosphorus desorbed from biochar was resorbed onto the mineral soil; (ii) charcoal particles physically covered P sorption locations on soil; or (iii) the pH increased when BC was added SBC and the soil surface became more negatively charged, thus increasing anion repulsion and decreasing P sorption. |
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Palavras-Chave: |
Batch method; Fast pyrolysis; P retention; Pirólise rápida; Retenção de fósforo. |
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Thesaurus Nal: |
Biochar. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222240/1/Marina-MORALES-et-al.-2021-Agriculture.pdf
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Marc: |
LEADER 01899naa a2200253 a 4500
001 2130976
005 2021-03-31
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/agriculture11040295$2DOI
100 1 $aMORALES, M. M.
245 $aBiochar chemistry in a weathered tropical soil$bkinetics of phosphorus sorption.$h[electronic resource]
260 $c2021
520 $aThe phosphorus (P) chemistry of biochar (BC)-amended soils is poorly understood. This statement is based on the lack of published research attempting a comprehensive characterization of biochar?s influence on P sorption. Therefore, this study addressed the kinetic limitations of these processes. This was accomplished using a fast pyrolysis biochar made from a mix of waste materials applied to a highly weathered Latossolo Vermelho distrofico (Oxisol) from São Paulo, Brazil. Standard method (batch method) was used. The sorption kinetic studies indicated that P sorption in both cases, soil (S) and soil-biochar (SBC), had a relatively fast initial reaction between 0 to 5 min. This may have happened because adding biochar to the soil decreased P sorption capacity compared to the mineral soil alone. Presumably, this is a result of: (i) Inorganic phosphorus desorbed from biochar was resorbed onto the mineral soil; (ii) charcoal particles physically covered P sorption locations on soil; or (iii) the pH increased when BC was added SBC and the soil surface became more negatively charged, thus increasing anion repulsion and decreasing P sorption.
650 $aBiochar
653 $aBatch method
653 $aFast pyrolysis
653 $aP retention
653 $aPirólise rápida
653 $aRetenção de fósforo
700 1 $aCOMERFORD, n. b.
700 1 $aBEHLING, M.
700 1 $aABREU, D. C. de
700 1 $aGUERRINI, I. A.
773 $tAgriculture$gv. 11, n. 4, 295, 2021. 13 p.
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Embrapa Florestas (CNPF) |
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