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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
26/10/2017 |
Data da última atualização: |
11/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
VILLANI, F. T.; RIBEIRO, G. A. A.; VILLANI, E. M. de A.; TEIXEIRA, W. G.; MOREIRA, F. M. de S.; MILLER, R.; ALFAIA, S. S. |
Afiliação: |
FERNANDA TUNES VILLANI, Instituto Federal de Educação, Ciência e Tecnologia, Manaus; GYOVANNI AUGUSTO AGUIAR RIBEIRO, Instituto Federal de Educação, Ciência e Tecnologia, Manaus; ECILA MERCÊS DE ALBUQUERQUE VILLANI, UFV; WENCESLAU GERALDES TEIXEIRA, CNPS; FATIMA MARIA DE SOUZA MOREIRA, UFLA; ROBERT MILLER, United Nations Development Program, Brasília; SONIA SENA ALFAIA, INPA. |
Título: |
Microbial carbon, mineral-N and soil nutrients in indigenous agroforestry systems and other land use in the upper Solimões Region, Western Amazonas State, Brazil. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Agricultural Sciences, v. 8, n. 7, p. 657-674, Jul. 2017. |
DOI: |
10.4236/as.2017.87050 |
Idioma: |
Inglês |
Conteúdo: |
Slash and burn cultivation systems carried out by many farmers in the Amazon region lead to changes in biogeochemical cycles of nutrients. To assess the extent of the impact of shifting cultivation on the soil in a floodplain portion of this region, samples of an Inceptisol surface layer (0 - 5 cm) under primary forest (FP), secondary forest at an advanced stage of recovery (FS), secondary forest at an initial stage of recovery (CAP), agroforestry (SAF), plantations (RÇ) in indigenous communities and small farmers, and pasture (PAS) in the Upper Solimões region, Amazonas, were subjected to analysis of chemical composition during the wet (May) and dry (October) seasons, 2007. Soils were fertile with levels of P, K, Ca and Mg above those generally found in Amazon soils. Microbial content did not vary significantly in the systems studied in the wet season, but there was a reduction of around 60% with the change of season, except for soils with SAF. Ammonium nitrogen was predominant in all systems and seasons studied. Nitrate content was higher in RÇ soil, in two seasons, and lower in PAS. The type of management adopted by farmers in the regions indigenous agroforestry systems resulted in small changes in P, K, Mg, MBC and mineral-N levels, independent of soil moisture. |
Palavras-Chave: |
Agricultura tradicional; Florestas primárias e secundárias; Gestão do solo. |
Thesagro: |
Cambissolo; Pastagem. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165723/1/2017-032.pdf
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Marc: |
LEADER 02173naa a2200265 a 4500 001 2078246 005 2021-11-11 008 2017 bl uuuu u00u1 u #d 024 7 $a10.4236/as.2017.87050$2DOI 100 1 $aVILLANI, F. T. 245 $aMicrobial carbon, mineral-N and soil nutrients in indigenous agroforestry systems and other land use in the upper Solimões Region, Western Amazonas State, Brazil.$h[electronic resource] 260 $c2017 520 $aSlash and burn cultivation systems carried out by many farmers in the Amazon region lead to changes in biogeochemical cycles of nutrients. To assess the extent of the impact of shifting cultivation on the soil in a floodplain portion of this region, samples of an Inceptisol surface layer (0 - 5 cm) under primary forest (FP), secondary forest at an advanced stage of recovery (FS), secondary forest at an initial stage of recovery (CAP), agroforestry (SAF), plantations (RÇ) in indigenous communities and small farmers, and pasture (PAS) in the Upper Solimões region, Amazonas, were subjected to analysis of chemical composition during the wet (May) and dry (October) seasons, 2007. Soils were fertile with levels of P, K, Ca and Mg above those generally found in Amazon soils. Microbial content did not vary significantly in the systems studied in the wet season, but there was a reduction of around 60% with the change of season, except for soils with SAF. Ammonium nitrogen was predominant in all systems and seasons studied. Nitrate content was higher in RÇ soil, in two seasons, and lower in PAS. The type of management adopted by farmers in the regions indigenous agroforestry systems resulted in small changes in P, K, Mg, MBC and mineral-N levels, independent of soil moisture. 650 $aCambissolo 650 $aPastagem 653 $aAgricultura tradicional 653 $aFlorestas primárias e secundárias 653 $aGestão do solo 700 1 $aRIBEIRO, G. A. A. 700 1 $aVILLANI, E. M. de A. 700 1 $aTEIXEIRA, W. G. 700 1 $aMOREIRA, F. M. de S. 700 1 $aMILLER, R. 700 1 $aALFAIA, S. S. 773 $tAgricultural Sciences$gv. 8, n. 7, p. 657-674, Jul. 2017.
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Embrapa Solos (CNPS) |
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Registros recuperados : 7 | |
4. | | VILLANI, F. T.; RIBEIRO, G. A. A.; TAPIA-CORAL, S. C.; TEIXEIRA, W. G.; ALFAIA, S. S. Atributos químicos e estoque de carbono dos solos com diferentes coberturas vegetais e sistemas tradicionais de uso da terra na região do Alto Solimões - Amazonas. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 28.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 12.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 10.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 7., 2008, Londrina. FertBio 2008: desafios para o uso do solo com eficiência e qualidade ambiental: anais. Londrina: Embrapa Soja: SBCS: IAPAR, UEL, 2008. 1 CD-ROM.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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5. | | ANTONIO, I. C.; ALMEIDA, E. F. F. de; RODRIGUES JÚNIOR, M.; RIBEIRO, G. A. A.; CARREIRA, A. da S. Implantação de gerenciamento de resíduos de campos experimentais da Embrapa Amazônia Ocidental. In: REUNIÃO TÉCNICA DE PESQUISA E DESENVOLVIMENTO DA EMBRAPA AMAZÔNIA OCIDENTAL, 4., 2009, Manaus. Anais... Manaus: Embrapa Amazônia Ocidental, 2009. p. 165-166. (Embrapa Amazônia Ocidental. Documentos, 73).Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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7. | | VILLANI, F. T.; RIBEIRO, G. A. A.; VILLANI, E. M. de A.; TEIXEIRA, W. G.; MOREIRA, F. M. de S.; MILLER, R.; ALFAIA, S. S. Microbial carbon, mineral-N and soil nutrients in indigenous agroforestry systems and other land use in the upper Solimões Region, Western Amazonas State, Brazil. Agricultural Sciences, v. 8, n. 7, p. 657-674, Jul. 2017.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
Biblioteca(s): Embrapa Solos. |
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Registros recuperados : 7 | |
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