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BAYER, C.; GOMES, J.; VIEIRA, F. C. B; ZANATTA, J. A.; PICCOLO, M. de C.; DIECKOW, J.. |
Methane (CH4) emission from agricultural soils increases dramatically as a result of deleterious effect of soil disturbance and nitrogen fertilization on methanotrophic organisms; however, few studies have attempted to evaluate the potential of long-term conservation management systems to mitigate CH4 emissions in tropical and subtropical soils. This study aimed to evaluate the long-term effect (>19 years) of no-till grass- and legume-based cropping systems on annual soil CH4 fluxes in a formerly degraded Acrisol in Southern Brazil. Air sampling was carried out using static chambers and CH4 analysis by gas chromatography. Analysis of historical data set of the experiment evidenced a remarkable effect of high C- and N-input cropping systems on the... |
Tipo: Separatas |
Palavras-chave: Emissão de gás.; Agricultura; Metano.. |
Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/931501 |
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SILVA, J. T. da; SOUSA, R. O. de; PARFITT, J. M. B.; SCIVITTARO, W. B.; BRITO, G. G. de; PINTO, M. A. B.; WINKLER, A. S.; VEÇOZZI, T. A.; GOMES, J.; TARRILLO, V. C.; WEINERT, C.; TIMM, L. C.. |
Tipo: Separatas |
Palavras-chave: Tensão de água no solo; Manejo da água; Oryza sativa L. |
Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1023763 |
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