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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
19/11/2018 |
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Data da última atualização: |
19/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SIMON, P. L.; DIECKOW, J.; KLEIN, C. A. M. de; ZANATTA, J. A.; WEERDEN, T. J. van der; RAMALHO, B.; BAYER, C. |
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Afiliação: |
Priscila Luzia Simon, UFPR; Jeferson Dieckow, UFPR; Cecile A. M. de Klein, AgResearch Invermay; JOSILEIA ACORDI ZANATTA, CNPF; Tony J. van der Weerden, AgResearch Invermay; Bruna Ramalho, UFPR; Cimelio Bayer, UFRGS. |
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Título: |
Nitrous oxide emission factors from cattle urine and dung, and dicyandiamide (DCD) as a mitigation strategy in subtropical pastures. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 267, p. 74-82, Nov. 2018. |
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DOI: |
10.1016/j.agee.2018.08.013 |
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Idioma: |
Inglês |
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Conteúdo: |
The Brazilian cattle herd (> 200 million) contributes, via excreta, 41% of the national emission of nitrous oxide (N2O), but little country-specific information exists on related emission factors and mitigation options. The aims of this study were: (i) to determine the N2O emission factors (EF) for dairy cattle urine and dung in a subtropical pasture and compare them with the 2% EF adopted by the IPCC; (ii) to evaluate the efficacy of the nitrification inhibitor dicyandiamide (DCD) to reduce those N2O emissions; and (iii) to determine if the best mode of DCD application is dissolved into or sprayed on urine and dung. An experiment was conducted in a kikuyu grass (Pennisetum clandestinum) pasture over a haplic Cambisol, in southern Brazil. Fresh urine and dung from Friesian dairy cows were applied with or without application of DCD; DCD was dissolved into the excreta before its application onto the soil, or was sprayed on the excreta patch. Treatments were applied four times, once per each season of 2014 (in different spots, same area). After excreta application, N2O fluxes were monitored in 10 air sampling sessions over 63?68 days, by using closed static chambers. Urine and dung were important sources of N2O, with an average EF of 0.34% for urine and 0.11% for dung; this urges the investigation of related mitigation strategies for Brazilian cattle systems. Yet, those emission factors were not as high as the IPCC default value of 2%, which suggests that this default value may need to be revised for the subtropical region. Additionally, this revision should consider the disaggregation of the EF for urine and dung. As a mitigation strategy, the use of DCD had a potential to curb N2O emission from urine patches, particularly in the cooler seasons of autumn and winter, when it reduced emissions by 60?82% after being dissolved in urine. DCD sprayed on excreta patches significantly reduced emissions in autumn only (by 47%) and thus was less efficient than when dissolved in urine. With respect to dung, there was no clear evidence that N2O emission from that excreta is mitigated by DCD, either dissolved into the dung mass or sprayed over the dung pat. MenosThe Brazilian cattle herd (> 200 million) contributes, via excreta, 41% of the national emission of nitrous oxide (N2O), but little country-specific information exists on related emission factors and mitigation options. The aims of this study were: (i) to determine the N2O emission factors (EF) for dairy cattle urine and dung in a subtropical pasture and compare them with the 2% EF adopted by the IPCC; (ii) to evaluate the efficacy of the nitrification inhibitor dicyandiamide (DCD) to reduce those N2O emissions; and (iii) to determine if the best mode of DCD application is dissolved into or sprayed on urine and dung. An experiment was conducted in a kikuyu grass (Pennisetum clandestinum) pasture over a haplic Cambisol, in southern Brazil. Fresh urine and dung from Friesian dairy cows were applied with or without application of DCD; DCD was dissolved into the excreta before its application onto the soil, or was sprayed on the excreta patch. Treatments were applied four times, once per each season of 2014 (in different spots, same area). After excreta application, N2O fluxes were monitored in 10 air sampling sessions over 63?68 days, by using closed static chambers. Urine and dung were important sources of N2O, with an average EF of 0.34% for urine and 0.11% for dung; this urges the investigation of related mitigation strategies for Brazilian cattle systems. Yet, those emission factors were not as high as the IPCC default value of 2%, which suggests that this default value may... Mostrar Tudo |
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Palavras-Chave: |
Ammonium; Application mode; Friesian cows; Inibidor de nitrificação; Nitrate; Nitrification inhibitor; WFPS. |
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Thesagro: |
Amônia; Gado Holandês; Nitrato. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03159naa a2200325 a 4500
001 2099548
005 2018-11-19
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agee.2018.08.013$2DOI
100 1 $aSIMON, P. L.
245 $aNitrous oxide emission factors from cattle urine and dung, and dicyandiamide (DCD) as a mitigation strategy in subtropical pastures.$h[electronic resource]
260 $c2018
520 $aThe Brazilian cattle herd (> 200 million) contributes, via excreta, 41% of the national emission of nitrous oxide (N2O), but little country-specific information exists on related emission factors and mitigation options. The aims of this study were: (i) to determine the N2O emission factors (EF) for dairy cattle urine and dung in a subtropical pasture and compare them with the 2% EF adopted by the IPCC; (ii) to evaluate the efficacy of the nitrification inhibitor dicyandiamide (DCD) to reduce those N2O emissions; and (iii) to determine if the best mode of DCD application is dissolved into or sprayed on urine and dung. An experiment was conducted in a kikuyu grass (Pennisetum clandestinum) pasture over a haplic Cambisol, in southern Brazil. Fresh urine and dung from Friesian dairy cows were applied with or without application of DCD; DCD was dissolved into the excreta before its application onto the soil, or was sprayed on the excreta patch. Treatments were applied four times, once per each season of 2014 (in different spots, same area). After excreta application, N2O fluxes were monitored in 10 air sampling sessions over 63?68 days, by using closed static chambers. Urine and dung were important sources of N2O, with an average EF of 0.34% for urine and 0.11% for dung; this urges the investigation of related mitigation strategies for Brazilian cattle systems. Yet, those emission factors were not as high as the IPCC default value of 2%, which suggests that this default value may need to be revised for the subtropical region. Additionally, this revision should consider the disaggregation of the EF for urine and dung. As a mitigation strategy, the use of DCD had a potential to curb N2O emission from urine patches, particularly in the cooler seasons of autumn and winter, when it reduced emissions by 60?82% after being dissolved in urine. DCD sprayed on excreta patches significantly reduced emissions in autumn only (by 47%) and thus was less efficient than when dissolved in urine. With respect to dung, there was no clear evidence that N2O emission from that excreta is mitigated by DCD, either dissolved into the dung mass or sprayed over the dung pat.
650 $aAmônia
650 $aGado Holandês
650 $aNitrato
653 $aAmmonium
653 $aApplication mode
653 $aFriesian cows
653 $aInibidor de nitrificação
653 $aNitrate
653 $aNitrification inhibitor
653 $aWFPS
700 1 $aDIECKOW, J.
700 1 $aKLEIN, C. A. M. de
700 1 $aZANATTA, J. A.
700 1 $aWEERDEN, T. J. van der
700 1 $aRAMALHO, B.
700 1 $aBAYER, C.
773 $tAgriculture, Ecosystems and Environment$gv. 267, p. 74-82, Nov. 2018.
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
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| Registros recuperados : 65 | |
| 1. |  | SAIBRO, J. C. de; CASTILHOS, Z. M. de S.; SILVA, J. L. S. da; VARELLA, A. C.; LUCAS, N. M.; SAVIAN, J. F. A integração da silvicultura com pastagens e pecuária no Rio Grande do Sul. In: PILLAR, V. DE P.; MÜLLER, S. C.; CASTILHOS, Z. M. de S.; JACQUES, A. V. A. (Ed.). Campos sulinos: conservação e uso sustentável da biodiversidade. Brasília, DF: Ministério do Meio Ambiente, 2009. p. 260-265.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Clima Temperado; Embrapa Pecuária Sul. |
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| 4. | | BARRO, R. S.; SAIBRO, J. C.; SILVA, J. L. S.; BRAMBILLA, D.; PIMENTA, C.; VARELLA, A. C. Avaliação da cobertura do solo por duas gramíneas forrageiras de ciclo estival sob duas densidades arbóreas de Pinus elliotii e ao sol pleno. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 43., 2006, João Pessoa. Anais... João Pessoa: SBZ, 2006. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 5. | | VARELLA, A. C.; SILVA, V. P.; SOARES, A. B.; MORAES, A.; MORAIS, H.; MORAES, B. P.; POLI, C. H. E. C. Avaliação de espécies forrageiras nativas e exóticas de verão para sistemas silvipastoris no Sul do Brasil. In: REUNIÓN DEL GRUPO TÉCNICO EN FORRAJERAS DEL CONO SUR, 22., 2008, Minas. Bioma campos: innovando para mantener su sustentabilidad y competitividad: memórias. Minas: INIA, 2008. p. 263. Grupo Campos.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 6. | | ZÜGE, F. T. E.; PAULINO, B. M.; AVERO, C. C.; ZÜGE, E. T. E.; RIBASKI, J.; VARELLA, A. C. Avaliação do comportamento luminoso e da produção de forragem em diferentes espaçamentos arbóreos de um sistema silvopastoril em Alegrete/RS. In: JORNADA DE PÓS-GRADUAÇÃO E PESQUISA, 5.; MOSTRA DE INICIAÇÃO CIENTÍFICA, 5.; MOSTRA DE INICIAÇÃO CIENTÍFICA JÚNIOR, 3.; MINICURSOS, 2007, Caçapava do Sul. Anais... Bagé: LEB, 2007. CONGREGA URCAMP. Resumo. p. 124.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 7. | | TADEO, R. W. M.; SOUZA, A. L. F. de; BAUERMAN, P. C.; VARELLA, A. C.; MAIA, M. B. Avaliação do estabelecimento e crescimento de eucalipto (E. grandis) em um sistema silvipastoril na região da Campanha do Rio Grande do Sul. In: JORNADA DE PÓS-GRADUAÇÃO E PESQUISA, 12.; MOSTRA DE INICIAÇÃO CIENTÍFICA, 12.; MOSTRA DE INICIAÇÃO CIENTÍFICA JÚNIOR, 10.; MOSTRA INTERNACIONAL DE FOTOGRAFIA, 2., 2014, Bagé. Anais... Bagé: Ediurcamp, 2014. 1 CD-ROM. CONGREGA.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 8. | | BARRO, R. S.; SAIBRO, J. C.; VARELLA, A. C.; MEDEIROS, R. B.; BANGEL, F. V.; SILVA, J. L. S.; CARASSAI, I. J.; NABINGER, C.; LEMAIRE, G. Canopy structure characteristics of three native perennial grasses with potential for integrated systems. In: INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 2., 2012, Porto Alegre. [Anais...]. [Porto Alegre]: SIA, 2012. 1 pen drive.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 10. | | CASSAL, V. B.; MONKS, P. L.; VARELLA, A. C.; LISBOA, V.; SGANZERLA, D. Características morfogênicas de estabelecimento de dois acessos de Bromus catharticus. Archivos de Zootecnia, Cordoba, v. 59, n. 226, p. 287-290, Jun. 2010.| Tipo: Nota Técnica/Nota Científica |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 11. | | VIEIRA, I. M. B. P.; MAIA, M. B.; MUNHOZ, C. G.; VARELLA, A. C.; FRANTZ, A. C. da L.; TADÊO, R. W. M. Caracterização da composição florística em uma área silvipastoril na região da Campanha. In: SIMPÓSIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PECUÁRIA SUL, 5., 2015, Bagé. Resumos dos trabalhos... Bagé: Embrapa Pecuária Sul, 2015. p. 11. Editora técnica Claudia Cristina Gulias Gomes.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 13. | | GENRO, T. C. M.; BREMM, C.; TRINDADE, J. K. da; VARELLA, A. C.; SOCA, P. Daily faecal excretion of alkane C32 in beef cattle females grazing natural grasslands in southern Brazil and in Uruguay. In: INTERNATIONAL GRASSLAND CONGRESS, 22., 2013, Sidney. Revitalising grasslands to sustain our communities: proceedings. New South Wales: MCI Australia, 2013. p. 698-699. Editors David L. Michalk, Geoffrey D. Millar, Warwick B. Badgery, Kim M. Broadfoot.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 14. | | FONTANELI, R. S.; VARELLA, A. C.; SILVA, J. L. S. da; SANTOS, H. P. dos. Desempenho das forrageiras subtropicais em sistema de integração lavoura-pecuária e de integração pecuária-floresta. In: CORDEIRO, L. A. M.; VILELA, L.; KLUTHCOUSKI, J.; MARCHÂO, R. L. (Ed.). Integração lavoura-pecuária-floresta: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa, 2015. p. 225-242.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Clima Temperado; Embrapa Pecuária Sul. |
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| 17. | | VARELLA, A. C.; MOOT, D. J.; POLLOCK, K. M.; PERI, P. L.; LUCAS, R. J. Do light and alfalfa responses to cloth and slatted shade represent those measured under an agroforestry system. Agroforestry Systems, Dordrecht, v. 81, n. 2, p. 157-173, Feb. 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 18. | | MAIA, M. B.; VARELLA, A. C.; LAMPERT, V. do N.; RIBASKI, J.; TADEO, R. W. M.; FRANTZ, A. C. da L.; VIEIRA, I. M. B. P. Economic evaluation of integrated livestock-forest systemat the establishment phase in the Southern region of Rio Grande do Sul - Brazil. In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas; Embrapa Pecuária Sul. |
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| 19. | | BARRO, R. S.; SAIBRO, J. C. de; VARELLA, A. C.; MEDEIROS, R. B. de; BANGEL, F. V.; RADIN, B. Eficiência de uso da radiação fotossinteticamente ativa de três forrageiras nativas dos campos sulinos sob dois níveis de sombra e a pleno sol. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília, DF. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| Registros recuperados : 65 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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