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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
11/12/2014 |
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Data da última atualização: |
07/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BINI, D.; SANTOS, C. A. dos; BERNAL, L. P. T.; ANDRADE, G.; NOGUEIRA, M. A. |
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Afiliação: |
DANIEL BINI, UEL; CRISTIANE ALCANTARA DOS SANTOS, UEL/USP; LAURA PRISCILA TOLEDO BERNAL, UEL; GALDINO ANDRADE, UEL; MARCO ANTONIO NOGUEIRA, CNPSO. |
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Título: |
Identifying indicators of C and N cycling in a clayey ultisol under different tillage and uses in winter. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Applied Soil Ecology, v. 76, p. 95-101, 2014. |
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ISSN: |
0929-1393 |
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DOI: |
10.1016/j.apsoil.2013.12.015 |
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Idioma: |
Inglês |
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Conteúdo: |
Although tropical and subtropical environments permit two cropping cycles per year, maintaining adequate mulching on the soil surface remains a challenge. In some cases, leaving soils fallow during the winter as an agricultural practice to control pathogens contributes to reduce soil mulching. The aim of this study was to assess attributes associated with C and N cycling in a soil under conventional and no-tillage management, with contrasting uses in winter: black oats (Avena strigosa Schreb) as cover crop or fallow. No-tillage increased total C and N, irrespective the winter crop. Cropping black oats under no-tillage resulted in more microbial biomass C and N, and glutaminase activity (15.2%, 65.2%, and 24%, respectively) than no-tillage under fallow. Under conventional tillage, winter cropping did not affect the attributes under study. Available P was higher in the no-tillage system (9.2?12.3 mg kg−1), especially when cropped with black oats, than in the conventional tillage system (4.8?6.6 mg kg−1). A multivariate analysis showed strong relationships between soil microbiological and chemical attributes in the no-tillage system, especially when cropped with black oats. Soil pH, dehydrogenase and acid phosphatase activities were the most effective at separating the soil use in winter. Microbial N, total N, microbial to total N ratio, available P, metabolic quotient (qCO2), and glutaminase activity were more effective at separating soil management regimes. The no-tillage system in association with winter oat cropping stimulated the soil microbial community, carbon and nutrient cycling, thereby helping to improve the sustainability of the cropping system. MenosAlthough tropical and subtropical environments permit two cropping cycles per year, maintaining adequate mulching on the soil surface remains a challenge. In some cases, leaving soils fallow during the winter as an agricultural practice to control pathogens contributes to reduce soil mulching. The aim of this study was to assess attributes associated with C and N cycling in a soil under conventional and no-tillage management, with contrasting uses in winter: black oats (Avena strigosa Schreb) as cover crop or fallow. No-tillage increased total C and N, irrespective the winter crop. Cropping black oats under no-tillage resulted in more microbial biomass C and N, and glutaminase activity (15.2%, 65.2%, and 24%, respectively) than no-tillage under fallow. Under conventional tillage, winter cropping did not affect the attributes under study. Available P was higher in the no-tillage system (9.2?12.3 mg kg−1), especially when cropped with black oats, than in the conventional tillage system (4.8?6.6 mg kg−1). A multivariate analysis showed strong relationships between soil microbiological and chemical attributes in the no-tillage system, especially when cropped with black oats. Soil pH, dehydrogenase and acid phosphatase activities were the most effective at separating the soil use in winter. Microbial N, total N, microbial to total N ratio, available P, metabolic quotient (qCO2), and glutaminase activity were more effective at separating soil management regimes. The no... Mostrar Tudo |
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Thesagro: |
Solo. |
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Thesaurus Nal: |
Ultisols. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02335naa a2200217 a 4500
001 2002322
005 2022-04-07
008 2014 bl uuuu u00u1 u #d
022 $a0929-1393
024 7 $a10.1016/j.apsoil.2013.12.015$2DOI
100 1 $aBINI, D.
245 $aIdentifying indicators of C and N cycling in a clayey ultisol under different tillage and uses in winter.$h[electronic resource]
260 $c2014
520 $aAlthough tropical and subtropical environments permit two cropping cycles per year, maintaining adequate mulching on the soil surface remains a challenge. In some cases, leaving soils fallow during the winter as an agricultural practice to control pathogens contributes to reduce soil mulching. The aim of this study was to assess attributes associated with C and N cycling in a soil under conventional and no-tillage management, with contrasting uses in winter: black oats (Avena strigosa Schreb) as cover crop or fallow. No-tillage increased total C and N, irrespective the winter crop. Cropping black oats under no-tillage resulted in more microbial biomass C and N, and glutaminase activity (15.2%, 65.2%, and 24%, respectively) than no-tillage under fallow. Under conventional tillage, winter cropping did not affect the attributes under study. Available P was higher in the no-tillage system (9.2?12.3 mg kg−1), especially when cropped with black oats, than in the conventional tillage system (4.8?6.6 mg kg−1). A multivariate analysis showed strong relationships between soil microbiological and chemical attributes in the no-tillage system, especially when cropped with black oats. Soil pH, dehydrogenase and acid phosphatase activities were the most effective at separating the soil use in winter. Microbial N, total N, microbial to total N ratio, available P, metabolic quotient (qCO2), and glutaminase activity were more effective at separating soil management regimes. The no-tillage system in association with winter oat cropping stimulated the soil microbial community, carbon and nutrient cycling, thereby helping to improve the sustainability of the cropping system.
650 $aUltisols
650 $aSolo
700 1 $aSANTOS, C. A. dos
700 1 $aBERNAL, L. P. T.
700 1 $aANDRADE, G.
700 1 $aNOGUEIRA, M. A.
773 $tApplied Soil Ecology$gv. 76, p. 95-101, 2014.
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Embrapa Soja (CNPSO) |
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| Registros recuperados : 13 | |
| 9. |  | COSTA, N. de L.; OLIVEIRA, J. R. da C.; PAULINO, V. T.; LIMA, J. A. de S.; MAGALHAES, J. A. Avaliação agronômica de leguminosas arbustivas de uso múltiplo em Ariquemes, Rondônia. In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 5., 2004, Curitiba. SAFs: desenvolvimento com proteção ambiental: anais. Colombo: Embrapa Florestas, 2004. p. 447-449. Pôster.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia. |
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| 12. | | CORDEIRO, A. G. M.; LIMA, J. A.; PENA, G. F.; ROSSI, A. A. B.; GODINHO, V. de P. C.; GUIMARAES, P. E. de O. Análise da diversidade genética de genótipos de milho (Zea mays L.) a partir de caracteres morfoagronômicos. In: SEMANA DA BIOLOGIA, 12., 2019, Alta Floresta. Anais... Alta Floresta: SAMAF, 2019. p. 144-154.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia. |
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| 13. | | LIMA, J. A.; ROSSI, A, A. B.; SANTOS, T. de O.; PENNA, G. F.; TARDIN, F. D.; TRINDADE, R. dos S.; GUIMARAES, P. E. de O.; GODINHO, V. de P. C.; AMARAL JUNIOR, A. T. do; CORDEIRO, A. G. M.; SANTOS, R. C. dos; JESUS, M. S. F. de; POGALSKY, L. de S.; TIAGO, A. V.; PEDRI, E. M. de; FERREIRA, E. L.; ZANETTI, G. T. Adaptability and stability of corn hybrids for the south of the Amazon biome via GGE biplot. Pesquisa Agropecuária Brasileira, v. 58, e02931, 2023. Título em português: Adaptabilidade e estabilidade de híbridos de milho para o sul do bioma Amazônia via GGE biplot.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 4 |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Rondônia; Embrapa Unidades Centrais. |
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| Registros recuperados : 13 | |
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