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Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
31/01/2017 |
Data da última atualização: |
31/01/2017 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
BARELA, A. N.; ALMEIDA, C. S. T. de; JUCHEM, S. de O. |
Afiliação: |
Andressa Navarrina Barela, UNIPAMPA; Clarice Souza Tavares de Almeida, UNIPAMPA; SERGIO DE OLIVEIRA JUCHEM, CPPSUL. |
Título: |
Efeito do tempo de secagem e análise sequencial sobre a determinação de fdn e fda em forragens utilizando bolsas de filtro. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
In: SIMPÓSIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PECUÁRIA SUL, 6., 2016, Bagé. Resumos... Bagé: Embrapa Pecuária Sul, 2016. |
Páginas: |
p. 26. |
Idioma: |
Português |
Notas: |
Claudia Cristina Gulias Gomes, editora técnica. |
Conteúdo: |
O objetivo do estudo foi determinar procedimentos para o melhor desempenho da análise de fibras em equipamento semiautomático (Fiber Analyzer A2000; Ankom), com base na metodologia descrita por Van Soest. |
Palavras-Chave: |
Fibra em detergente neutro. |
Thesagro: |
Análise de laboratório; Detergente. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154278/1/Simposio-2016-02.pdf
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Marc: |
LEADER 00956nam a2200193 a 4500 001 2062195 005 2017-01-31 008 2016 bl uuuu u00u1 u #d 100 1 $aBARELA, A. N. 245 $aEfeito do tempo de secagem e análise sequencial sobre a determinação de fdn e fda em forragens utilizando bolsas de filtro.$h[electronic resource] 260 $aIn: SIMPÓSIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PECUÁRIA SUL, 6., 2016, Bagé. Resumos... Bagé: Embrapa Pecuária Sul$c2016 300 $ap. 26. 500 $aClaudia Cristina Gulias Gomes, editora técnica. 520 $aO objetivo do estudo foi determinar procedimentos para o melhor desempenho da análise de fibras em equipamento semiautomático (Fiber Analyzer A2000; Ankom), com base na metodologia descrita por Van Soest. 650 $aAnálise de laboratório 650 $aDetergente 653 $aFibra em detergente neutro 700 1 $aALMEIDA, C. S. T. de 700 1 $aJUCHEM, S. de O.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Registro Completo
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
09/10/2013 |
Data da última atualização: |
07/03/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 5 |
Autoria: |
SILVA, A. P.; BABUJIA, L. S.; MATSUMOTO, M. F.; GUIMARÃES, M. F.; HUNGRIA, M. |
Afiliação: |
UEL; UEM; UENP; UEL; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
Título: |
Bacterial diversity under different tillage and crop rotation systems in an oxisol of Southern Brazil. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
The Open Agriculture Journal, v. 7, Suppl 1-M6, p. 40-47, 2013. |
Idioma: |
Inglês |
Conteúdo: |
Microbial diversity can be used to assess the impact of agricultural practices on the long-term sustainability of cropping systems. The aim of this study was to investigate changes in soil bacterial diversity as a result of the impact of different soil tillage and crop rotation systems in an oxisol of southern Brazil. Bacterial diversity was examined in the 0-10 cm layer in two field experiments by analyzing soil DNA using 16S rDNA-DGGE profiles. Experiment one consisted of a long-term 26-year trial with four soil tillage management systems: (1) no-tillage (NT), (2) disc plow (DP), (3) field cultivator (FC), and (4) heavy-disc harrow (DH), all under soybean (summer)/wheat (winter) crop succession. Experiment two consisted of a short-term 10-year trial with DP and NT and three crop rotations (CR) including grasses, legumes and green manures. Cluster analysis of the 16S rDNA sequences revealed that the main effect on clustering was attributed to differences in soil tillage management systems. The Shannon index confirmed greater bacterial diversity under NT, followed by the FC, DH and DP. Therefore, diversity decreased as tillage practices intensified. The evenness index demonstrated uniformity of the profiles of the bacterial communities, with dominance of a few communities, regardless of soil tillage and crop rotation. Different crop rotations had only minor effects on bacterial diversity, what could be related to a previous fallow period. The results suggest that bacterial diversity analyzed by DGGE may be useful as bioindicator of the changes caused by soil tillage. MenosMicrobial diversity can be used to assess the impact of agricultural practices on the long-term sustainability of cropping systems. The aim of this study was to investigate changes in soil bacterial diversity as a result of the impact of different soil tillage and crop rotation systems in an oxisol of southern Brazil. Bacterial diversity was examined in the 0-10 cm layer in two field experiments by analyzing soil DNA using 16S rDNA-DGGE profiles. Experiment one consisted of a long-term 26-year trial with four soil tillage management systems: (1) no-tillage (NT), (2) disc plow (DP), (3) field cultivator (FC), and (4) heavy-disc harrow (DH), all under soybean (summer)/wheat (winter) crop succession. Experiment two consisted of a short-term 10-year trial with DP and NT and three crop rotations (CR) including grasses, legumes and green manures. Cluster analysis of the 16S rDNA sequences revealed that the main effect on clustering was attributed to differences in soil tillage management systems. The Shannon index confirmed greater bacterial diversity under NT, followed by the FC, DH and DP. Therefore, diversity decreased as tillage practices intensified. The evenness index demonstrated uniformity of the profiles of the bacterial communities, with dominance of a few communities, regardless of soil tillage and crop rotation. Different crop rotations had only minor effects on bacterial diversity, what could be related to a previous fallow period. The results suggest that bacterial d... Mostrar Tudo |
Thesagro: |
Solo. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/90739/1/bacterial-diversity.pdf
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Marc: |
LEADER 02151naa a2200181 a 4500 001 1968218 005 2014-03-07 008 2013 bl uuuu u00u1 u #d 100 1 $aSILVA, A. P. 245 $aBacterial diversity under different tillage and crop rotation systems in an oxisol of Southern Brazil.$h[electronic resource] 260 $c2013 520 $aMicrobial diversity can be used to assess the impact of agricultural practices on the long-term sustainability of cropping systems. The aim of this study was to investigate changes in soil bacterial diversity as a result of the impact of different soil tillage and crop rotation systems in an oxisol of southern Brazil. Bacterial diversity was examined in the 0-10 cm layer in two field experiments by analyzing soil DNA using 16S rDNA-DGGE profiles. Experiment one consisted of a long-term 26-year trial with four soil tillage management systems: (1) no-tillage (NT), (2) disc plow (DP), (3) field cultivator (FC), and (4) heavy-disc harrow (DH), all under soybean (summer)/wheat (winter) crop succession. Experiment two consisted of a short-term 10-year trial with DP and NT and three crop rotations (CR) including grasses, legumes and green manures. Cluster analysis of the 16S rDNA sequences revealed that the main effect on clustering was attributed to differences in soil tillage management systems. The Shannon index confirmed greater bacterial diversity under NT, followed by the FC, DH and DP. Therefore, diversity decreased as tillage practices intensified. The evenness index demonstrated uniformity of the profiles of the bacterial communities, with dominance of a few communities, regardless of soil tillage and crop rotation. Different crop rotations had only minor effects on bacterial diversity, what could be related to a previous fallow period. The results suggest that bacterial diversity analyzed by DGGE may be useful as bioindicator of the changes caused by soil tillage. 650 $aSolo 700 1 $aBABUJIA, L. S. 700 1 $aMATSUMOTO, M. F. 700 1 $aGUIMARÃES, M. F. 700 1 $aHUNGRIA, M. 773 $tThe Open Agriculture Journal$gv. 7, Suppl 1-M6, p. 40-47, 2013.
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