Development of alternative methods for determining soil organic matter.

Detalhes bibliográficos
Autor(a) principal: SOUZA, D. M. de
Data de Publicação: 2016
Outros Autores: MORAIS, P. A. de O., MATSUSHIGE, I., ROSA, L. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1052941
Resumo: Soil organic matter (SOM) is important to fertility, since it performs several functions such as cycling, water and nutrient retention and soil aggregation, in addition to being an energy requirement for biological activity. This study proposes new trends to the Embrapa, Walkley-Black, and Mebius methods that allowed the determination of SOM by spectrophotometry, increasing functionality. The mass of 500 mg was reduced to 200 mg, generating a mean of 60 % saving of reagents and a decrease of 91 % in the volume of residue generated for the three methods without compromising accuracy and precision. We were able to optimize conditions for the Mebius method and establish the digestion time of maximum recovery of SOM by factorial design and response surface. The methods were validated by the estimate of figures of merits. Between the methods investigated, the optimized Mebius method was best suited for determining SOM, showing near 100 % recovery.
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spelling Development of alternative methods for determining soil organic matter.SoloMatéria orgânicaAnálise químicaEspectrometriaSoil organic matter (SOM) is important to fertility, since it performs several functions such as cycling, water and nutrient retention and soil aggregation, in addition to being an energy requirement for biological activity. This study proposes new trends to the Embrapa, Walkley-Black, and Mebius methods that allowed the determination of SOM by spectrophotometry, increasing functionality. The mass of 500 mg was reduced to 200 mg, generating a mean of 60 % saving of reagents and a decrease of 91 % in the volume of residue generated for the three methods without compromising accuracy and precision. We were able to optimize conditions for the Mebius method and establish the digestion time of maximum recovery of SOM by factorial design and response surface. The methods were validated by the estimate of figures of merits. Between the methods investigated, the optimized Mebius method was best suited for determining SOM, showing near 100 % recovery.DIEGO MENDES DE SOUZA, CNPAF; PEDRO AUGUSTO DE OLIVEIRA MORAIS, UNIVERSIDADE FEDERAL DE GOIÁS; IVA MATSUSHIGE, CNPAF; LUISMAR ALVES ROSA, INSTITUTO FEDERAL DE GOIÁS.SOUZA, D. M. deMORAIS, P. A. de O.MATSUSHIGE, I.ROSA, L. A.2016-09-15T11:11:11Z2016-09-15T11:11:11Z2016-09-1520162016-09-16T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Ciência do Solo, Viçosa, MG, v. 40, e0150150, 2016.http://www.alice.cnptia.embrapa.br/alice/handle/doc/105294110.1590/18069657rbcs20150150enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-15T23:31:19Zoai:www.alice.cnptia.embrapa.br:doc/1052941Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-15T23:31:19Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Development of alternative methods for determining soil organic matter.
title Development of alternative methods for determining soil organic matter.
spellingShingle Development of alternative methods for determining soil organic matter.
SOUZA, D. M. de
Solo
Matéria orgânica
Análise química
Espectrometria
title_short Development of alternative methods for determining soil organic matter.
title_full Development of alternative methods for determining soil organic matter.
title_fullStr Development of alternative methods for determining soil organic matter.
title_full_unstemmed Development of alternative methods for determining soil organic matter.
title_sort Development of alternative methods for determining soil organic matter.
author SOUZA, D. M. de
author_facet SOUZA, D. M. de
MORAIS, P. A. de O.
MATSUSHIGE, I.
ROSA, L. A.
author_role author
author2 MORAIS, P. A. de O.
MATSUSHIGE, I.
ROSA, L. A.
author2_role author
author
author
dc.contributor.none.fl_str_mv DIEGO MENDES DE SOUZA, CNPAF; PEDRO AUGUSTO DE OLIVEIRA MORAIS, UNIVERSIDADE FEDERAL DE GOIÁS; IVA MATSUSHIGE, CNPAF; LUISMAR ALVES ROSA, INSTITUTO FEDERAL DE GOIÁS.
dc.contributor.author.fl_str_mv SOUZA, D. M. de
MORAIS, P. A. de O.
MATSUSHIGE, I.
ROSA, L. A.
dc.subject.por.fl_str_mv Solo
Matéria orgânica
Análise química
Espectrometria
topic Solo
Matéria orgânica
Análise química
Espectrometria
description Soil organic matter (SOM) is important to fertility, since it performs several functions such as cycling, water and nutrient retention and soil aggregation, in addition to being an energy requirement for biological activity. This study proposes new trends to the Embrapa, Walkley-Black, and Mebius methods that allowed the determination of SOM by spectrophotometry, increasing functionality. The mass of 500 mg was reduced to 200 mg, generating a mean of 60 % saving of reagents and a decrease of 91 % in the volume of residue generated for the three methods without compromising accuracy and precision. We were able to optimize conditions for the Mebius method and establish the digestion time of maximum recovery of SOM by factorial design and response surface. The methods were validated by the estimate of figures of merits. Between the methods investigated, the optimized Mebius method was best suited for determining SOM, showing near 100 % recovery.
publishDate 2016
dc.date.none.fl_str_mv 2016-09-15T11:11:11Z
2016-09-15T11:11:11Z
2016-09-15
2016
2016-09-16T11:11:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 40, e0150150, 2016.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1052941
10.1590/18069657rbcs20150150
identifier_str_mv Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 40, e0150150, 2016.
10.1590/18069657rbcs20150150
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1052941
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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repository.mail.fl_str_mv cg-riaa@embrapa.br
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