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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Solos. |
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Data corrente: |
20/09/2021 |
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Data da última atualização: |
20/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEIXOTO, R. S.; COUTINHO, H. L. da C.; MADARI, B. E.; MACHADO, P. L. O. de A.; RUMJANEK, N. G.; ELSAS, J. D. van; SELDIN, L.; ROSADO, A. S. |
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Afiliação: |
R. S. PEIXOTO, UFRJ; HEITOR LUIZ DA COSTA COUTINHO, CNPS; BEATA EMOKE MADARI, CNPS; PEDRO LUIZ OLIVEIRA DE A MACHADO, CNPS; NORMA GOUVEA RUMJANEK, CNPAB; J. D. VAN ELSAS, Groningen University; L. SELDIN, UFRJ; A. S. ROSADO, UFRJ. |
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Título: |
Soil aggregation and bacterial community structure as affected by tillage and cover cropping in the Brazilian cerrados. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Soil & Tillage Research, Amsterdam, v. 90, n. 1/2, p. 16-28, Nov. 2006. |
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DOI: |
https://doi.org/10.1016/j.still.2005.08.001 |
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Idioma: |
Inglês |
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Conteúdo: |
Microbial-based indicators of soil quality are believed to be more dynamic than those based on physical and chemical properties. Recent developments in molecular biology based techniques have led to rapid and reliable tools to characterize microbial community structures. We determined the effects of conventional and no-tillage in cropping systems with and without cover crops on bacterial community structure, total organic carbon (TOC) and soil aggregation. Tillage and rotation did not affect TOC from bulk soil. However, TOC was greater in the largest aggregate size class (7.98?19 mm), and had greater mean-weight diameter under no-tillage than under conventional tillage in the 0?5 cm soil layer. Soil bacterial community structure, based on denaturing gradient gel electrophoresis of polymerase chain reaction amplified DNA (PCR/DGGE) using two different genes as biomarkers, 16S rRNA and rpoB genes, indicated different populations in response to cultivation, tillage and depth, but not due to cover cropping. Soil bacterial community structure and meanweight diameter of soil aggregates indicated alterations in soil conditions due to tillage system. |
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Thesagro: |
Plantio Direto; Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01945naa a2200241 a 4500
001 2134553
005 2021-09-20
008 2006 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.still.2005.08.001$2DOI
100 1 $aPEIXOTO, R. S.
245 $aSoil aggregation and bacterial community structure as affected by tillage and cover cropping in the Brazilian cerrados.$h[electronic resource]
260 $c2006
520 $aMicrobial-based indicators of soil quality are believed to be more dynamic than those based on physical and chemical properties. Recent developments in molecular biology based techniques have led to rapid and reliable tools to characterize microbial community structures. We determined the effects of conventional and no-tillage in cropping systems with and without cover crops on bacterial community structure, total organic carbon (TOC) and soil aggregation. Tillage and rotation did not affect TOC from bulk soil. However, TOC was greater in the largest aggregate size class (7.98?19 mm), and had greater mean-weight diameter under no-tillage than under conventional tillage in the 0?5 cm soil layer. Soil bacterial community structure, based on denaturing gradient gel electrophoresis of polymerase chain reaction amplified DNA (PCR/DGGE) using two different genes as biomarkers, 16S rRNA and rpoB genes, indicated different populations in response to cultivation, tillage and depth, but not due to cover cropping. Soil bacterial community structure and meanweight diameter of soil aggregates indicated alterations in soil conditions due to tillage system.
650 $aPlantio Direto
650 $aSolo
700 1 $aCOUTINHO, H. L. da C.
700 1 $aMADARI, B. E.
700 1 $aMACHADO, P. L. O. de A.
700 1 $aRUMJANEK, N. G.
700 1 $aELSAS, J. D. van
700 1 $aSELDIN, L.
700 1 $aROSADO, A. S.
773 $tSoil & Tillage Research, Amsterdam$gv. 90, n. 1/2, p. 16-28, Nov. 2006.
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Registro original: |
Embrapa Solos (CNPS) |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/04/2017 |
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Data da última atualização: |
05/07/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PIOTTO, V. C.; HERLING, V. R.; SAKAMOTO, L.; LEMES, A.; NAREZZI, F.; INOJOSA, E. F.; OLIVEIRA, P. P. A.; BERNDT, A.; FRIGHETTO, R. T. S. |
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Afiliação: |
V. C. PIOTTO, FZEA/USP; V. R. HERLING, FZEA/USP; L. SAKAMOTO, FZEA/USP; A. LEMES, UNESP, Jaboticabal; F. NAREZZI; E. F. INOJOSA, FZEA-UNESP; PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; ALEXANDRE BERNDT, CPPSE; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA. |
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Título: |
Ruminal methane emissions in grazing beef heifers. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON GREENHOUSE GASES IN AGRICULTURE, 2., 2016, Campo Grande, MS. Proceedings... Brasília, DF: Embrapa, 2016. p. 447-448. (Embrapa Gado de Corte. Documentos, 216). |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil is one of the largest beef exporter in the world, and this is due to the introduction of Nellore cattle which has been adapted to the edaphoclimatic conditions of the country. With more than 200 million head, distributed in different production managements, producing through mainly extensive grazing system, Brazil has the responsibility to increase its productivity. That means, to produce more in smaller areas using fewer animals. One option to achieve that goal is to make the rotational management, thus, it may provide a better control of food supply for animals. However, it is also necessary to be concerned about the environment, especially for the methane produced from enteric fermentation in rumen. The objective of this study was to measure the emission of enteric methane in beef heifers in rotational and continuous grazing systems. |
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Thesagro: |
Metano; Ruminante. |
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Thesaurus NAL: |
Methane; Ruminants. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/161189/1/2016RA-032.pdf
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Marc: |
LEADER 01662nam a2200253 a 4500
001 2068113
005 2017-07-05
008 2016 bl uuuu u00u1 u #d
100 1 $aPIOTTO, V. C.
245 $aRuminal methane emissions in grazing beef heifers.$h[electronic resource]
260 $aIn: INTERNATIONAL SYMPOSIUM ON GREENHOUSE GASES IN AGRICULTURE, 2., 2016, Campo Grande, MS. Proceedings... Brasília, DF: Embrapa, 2016. p. 447-448. (Embrapa Gado de Corte. Documentos$c2016
520 $aBrazil is one of the largest beef exporter in the world, and this is due to the introduction of Nellore cattle which has been adapted to the edaphoclimatic conditions of the country. With more than 200 million head, distributed in different production managements, producing through mainly extensive grazing system, Brazil has the responsibility to increase its productivity. That means, to produce more in smaller areas using fewer animals. One option to achieve that goal is to make the rotational management, thus, it may provide a better control of food supply for animals. However, it is also necessary to be concerned about the environment, especially for the methane produced from enteric fermentation in rumen. The objective of this study was to measure the emission of enteric methane in beef heifers in rotational and continuous grazing systems.
650 $aMethane
650 $aRuminants
650 $aMetano
650 $aRuminante
700 1 $aHERLING, V. R.
700 1 $aSAKAMOTO, L.
700 1 $aLEMES, A.
700 1 $aNAREZZI, F.
700 1 $aINOJOSA, E. F.
700 1 $aOLIVEIRA, P. P. A.
700 1 $aBERNDT, A.
700 1 $aFRIGHETTO, R. T. S.
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