Development of alternative methods for determining soil organic matter.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , |
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. |
id |
EMBR_a1bda5a522a101c077edab8b6df22a76 |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/1052941 |
network_acronym_str |
EMBR |
network_name_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository_id_str |
2154 |
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) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1817695440054779904 |