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| 1. |  | GRESSLER, V.; BILOTTA, P.; STEINMETZ, R. L. R.; BORTOLI, M.; KUNZ, A. A SPE-LC-MS/MS method for veterinary antiobic analysis in swine manure. In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 3., 2013, São Pedro, SP. Anais... São Pedro, SP: SBERA, 2013.| Biblioteca(s): Embrapa Suínos e Aves. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio-Norte. Para informações adicionais entre em contato com cpamn.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
05/12/2012 |
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Data da última atualização: |
28/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SANTOS, V. B.; ARAÚJO, A. S. F.; LEITE, L. F. C.; NUNES, L. A. P. L.; MELO, W. J. |
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Afiliação: |
VALDINAR B. SANTOS, UFPI; ADEMIR S. F. ARAÚJO, UFPI; LUIZ FERNANDO CARVALHO LEITE, CPAMN; LUÍS A. P. L. NUNES, UFPI; WANDERLEY J. MELO, UNESP/FCAV. |
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Título: |
Soil microbial biomass and organic matter fractions during transition from conventional to organic farming systems. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Geoderma, v. 170, p. 227-231, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to investigate the response of soil microbial biomass and organic matter fractions during the transition from conventional to organic farming in a tropical soil. Soil samples were collected from three different plots planted with Malpighia glaba: conventional plot with 10 years (CON); transitional plot with 2 years under organic farming system (TRA); organic plot with 5 years under organic farming system (ORG). A plot under native vegetation (NV) was used as a reference. Soil microbial biomass C (MBC) and N (MBN), soil organic carbon (SOC) and total N (TN), soil organic matter fractioning and microbial indices were evaluated in soil samples collected at 0-5, 5-10, 10-20 and 20-40 cm depth. SOC and fulvic acids frac- tion contents were higher in the ORG system at 0-5 cm and 5-10 cm depths. Soil MBC was highest in the ORG, in all depths, than in others plots. Soil MBN was similar between ORG, TRA and NV in the surface layer. The lowest values for soil MBC and MBN were observed in CON plot. Soil microbial biomass increased gradually from conventional to organic farming, leading to consistent and distinct differences from the conventional control by the end of the second year. |
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Palavras-Chave: |
Indicadores biológicos do solo; Management system; Sistema de gestão; Soil biological indicators. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01880naa a2200217 a 4500
001 1941320
005 2023-08-28
008 2012 bl uuuu u00u1 u #d
100 1 $aSANTOS, V. B.
245 $aSoil microbial biomass and organic matter fractions during transition from conventional to organic farming systems.
260 $c2012
520 $aThe aim of this study was to investigate the response of soil microbial biomass and organic matter fractions during the transition from conventional to organic farming in a tropical soil. Soil samples were collected from three different plots planted with Malpighia glaba: conventional plot with 10 years (CON); transitional plot with 2 years under organic farming system (TRA); organic plot with 5 years under organic farming system (ORG). A plot under native vegetation (NV) was used as a reference. Soil microbial biomass C (MBC) and N (MBN), soil organic carbon (SOC) and total N (TN), soil organic matter fractioning and microbial indices were evaluated in soil samples collected at 0-5, 5-10, 10-20 and 20-40 cm depth. SOC and fulvic acids frac- tion contents were higher in the ORG system at 0-5 cm and 5-10 cm depths. Soil MBC was highest in the ORG, in all depths, than in others plots. Soil MBN was similar between ORG, TRA and NV in the surface layer. The lowest values for soil MBC and MBN were observed in CON plot. Soil microbial biomass increased gradually from conventional to organic farming, leading to consistent and distinct differences from the conventional control by the end of the second year.
653 $aIndicadores biológicos do solo
653 $aManagement system
653 $aSistema de gestão
653 $aSoil biological indicators
700 1 $aARAÚJO, A. S. F.
700 1 $aLEITE, L. F. C.
700 1 $aNUNES, L. A. P. L.
700 1 $aMELO, W. J.
773 $tGeoderma$gv. 170, p. 227-231, 2012.
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