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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: |
10/03/2020 |
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Data da última atualização: |
22/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SIMON, P. L.; DIECKOW, J.; ZANATTA, J. A.; RAMALHO, B.; RIBEIRO, R. H.; VAN DER WEERDEN, T.; KLEIN, C. A. M. de. |
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Afiliação: |
Priscila L. Simon, AgResearch Invermay; Jeferson Dieckow, UFPR; JOSILEIA ACORDI ZANATTA, CNPF; Bruna Ramalho, UFPR; Ricardo H. Ribeiro, UFPR; Tony van der Weerden, AgResearch Invermay; Cecile A. M. de Klein, AgResearch Invermay. |
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Título: |
Does Brachiaria humidicola and dicyandiamide reduce nitrous oxide and ammonia emissions from cattle urine patches in the subtropics? |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 720, article 137692, June 2020. 10 p. |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2020.137692 |
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Idioma: |
Inglês |
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Conteúdo: |
Nitrous oxide (N2O) emissions frompasture-based livestock systems represent 34% of Brazil's agricultural greenhouse gas emissions. The forage species Brachiaria humidicola is known for its biological nitrification inhibition (BNI) capacity and N2O emissions reduction ability from urine patches under tropical conditions. However, there is little information about the effect of BNI on N2O emission and ammonia (NH3) volatilisation in the subtropics. This study aimed to: (i) evaluate the potential of Brachiaria humidicola, compared with Panicum maximum (Jacq. cv. Áries; guinea grass), a broadly used grass (with no BNI capacity), to reduce N2O emissions under subtropical conditions; (ii) determine the efficacy of nitrification inhibitor dicyandiamide (DCD) to decrease N2O emissions; and (iii) determine the effect of brachiaria and DCD application on NH3 volatilisation. A field experiment was carried out using a Cambisol, where cattle urine ± DCD was applied to brachiaria and guinea grass. Over the 67-day measurement period, cumulative N2O emissions were 20% lower from urine patches in the brachiaria treatment (1138 mg N m?2, Emission factor = 1.06%) compared to guinea grass (1436 mg Nm?2, Emission factor=1.33%) (P b .10). A greenhouse experiment, using pots with the same treatments as in the field experiment, suggested that this could have been due to lower soil nitrate levels under brachiaria forage compared to guinea grass, indicating that BNI could be a possible mechanism for lower N2O emissions from brachiaria. The DCD application was effective in both forage species, decreasing N2O emissions by 40?50% (P b .10) compared with the urine only treatment. Approximately 25% of the urine applied N was lost via NH3 volatilisation, however the NH3 loss was not affected by forage species or DCD application (P N .10). Overall, the results demonstrated that brachiaria and DCD use are strategies that can reduce N2O emissions from urine patches. MenosNitrous oxide (N2O) emissions frompasture-based livestock systems represent 34% of Brazil's agricultural greenhouse gas emissions. The forage species Brachiaria humidicola is known for its biological nitrification inhibition (BNI) capacity and N2O emissions reduction ability from urine patches under tropical conditions. However, there is little information about the effect of BNI on N2O emission and ammonia (NH3) volatilisation in the subtropics. This study aimed to: (i) evaluate the potential of Brachiaria humidicola, compared with Panicum maximum (Jacq. cv. Áries; guinea grass), a broadly used grass (with no BNI capacity), to reduce N2O emissions under subtropical conditions; (ii) determine the efficacy of nitrification inhibitor dicyandiamide (DCD) to decrease N2O emissions; and (iii) determine the effect of brachiaria and DCD application on NH3 volatilisation. A field experiment was carried out using a Cambisol, where cattle urine ± DCD was applied to brachiaria and guinea grass. Over the 67-day measurement period, cumulative N2O emissions were 20% lower from urine patches in the brachiaria treatment (1138 mg N m?2, Emission factor = 1.06%) compared to guinea grass (1436 mg Nm?2, Emission factor=1.33%) (P b .10). A greenhouse experiment, using pots with the same treatments as in the field experiment, suggested that this could have been due to lower soil nitrate levels under brachiaria forage compared to guinea grass, indicating that BNI could be a possible mechanism for ... Mostrar Tudo |
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Palavras-Chave: |
Ammonium; BNI; Espécie forrageira; Forage species; NH3; Volatilisation; Volatilização. |
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Thesagro: |
Amônia; Brachiaria Humidicola; Nitrato. |
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Thesaurus Nal: |
Nitrates. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02983naa a2200337 a 4500
001 2121071
005 2020-04-22
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2020.137692$2DOI
100 1 $aSIMON, P. L.
245 $aDoes Brachiaria humidicola and dicyandiamide reduce nitrous oxide and ammonia emissions from cattle urine patches in the subtropics?$h[electronic resource]
260 $c2020
520 $aNitrous oxide (N2O) emissions frompasture-based livestock systems represent 34% of Brazil's agricultural greenhouse gas emissions. The forage species Brachiaria humidicola is known for its biological nitrification inhibition (BNI) capacity and N2O emissions reduction ability from urine patches under tropical conditions. However, there is little information about the effect of BNI on N2O emission and ammonia (NH3) volatilisation in the subtropics. This study aimed to: (i) evaluate the potential of Brachiaria humidicola, compared with Panicum maximum (Jacq. cv. Áries; guinea grass), a broadly used grass (with no BNI capacity), to reduce N2O emissions under subtropical conditions; (ii) determine the efficacy of nitrification inhibitor dicyandiamide (DCD) to decrease N2O emissions; and (iii) determine the effect of brachiaria and DCD application on NH3 volatilisation. A field experiment was carried out using a Cambisol, where cattle urine ± DCD was applied to brachiaria and guinea grass. Over the 67-day measurement period, cumulative N2O emissions were 20% lower from urine patches in the brachiaria treatment (1138 mg N m?2, Emission factor = 1.06%) compared to guinea grass (1436 mg Nm?2, Emission factor=1.33%) (P b .10). A greenhouse experiment, using pots with the same treatments as in the field experiment, suggested that this could have been due to lower soil nitrate levels under brachiaria forage compared to guinea grass, indicating that BNI could be a possible mechanism for lower N2O emissions from brachiaria. The DCD application was effective in both forage species, decreasing N2O emissions by 40?50% (P b .10) compared with the urine only treatment. Approximately 25% of the urine applied N was lost via NH3 volatilisation, however the NH3 loss was not affected by forage species or DCD application (P N .10). Overall, the results demonstrated that brachiaria and DCD use are strategies that can reduce N2O emissions from urine patches.
650 $aNitrates
650 $aAmônia
650 $aBrachiaria Humidicola
650 $aNitrato
653 $aAmmonium
653 $aBNI
653 $aEspécie forrageira
653 $aForage species
653 $aNH3
653 $aVolatilisation
653 $aVolatilização
700 1 $aDIECKOW, J.
700 1 $aZANATTA, J. A.
700 1 $aRAMALHO, B.
700 1 $aRIBEIRO, R. H.
700 1 $aVAN DER WEERDEN, T.
700 1 $aKLEIN, C. A. M. de
773 $tScience of the Total Environment$gv. 720, article 137692, June 2020. 10 p.
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Embrapa Florestas (CNPF) |
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| Registros recuperados : 14 | |
| 3. |  | MARQUES, J. B. B.; LEHUGEUR, C.; COUTO, M. R. do. Raising Brangus steers on natural pasture developed after irrigated rice crop in the Pampa biome of Rio Grande do Sul state, 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 Pecuária Sul. |
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| 9. | | MARQUES, J. B. B.; PEREZ, N. B.; SILVA, J. L. S. da; LEHUGEUR, C.; COUTO, M. R. de. Desempenho de bovinos de corte em campos naturais em planossolo com ou sem irrigação na campanha do Rio Grande do Sul¹. In: WORKSHOP INTEGRAÇÃO LAVOURA-PECUÁRIA-FLORESTA NA EMBRAPA, Brasília, DF, 2009. Resumos e palestras apresentados. Brasília, DF: Embrapa, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 10. | | MARQUES, J. B. B.; PEREZ, N. B.; SILVA, J. L. S. da; LEHUGEUR, C.; COUTO, M. R. do. Desenvolvimento de pastagem natural com e sem irrigação em área de integração de arroz irrigado e pecuária de corte. In: WORKSHOP INTEGRAÇÃO LAVOURA-PECUÁRIA-FLORESTA NA EMBRAPA, Brasília, DF, 2009. Resumos e palestras apresentados. Brasília, DF: Embrapa, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 13. | | MARQUES, J. B. B.; PEREZ, N. B.; SILVA, J. L. S. da; LEHUGEUR, C.; COUTO, M. R. do. Resultados econômicos de sistemas de integração de arroz irrigado e pecuária de corte no Rio Grande do Sul. In: WORKSHOP INTEGRAÇÃO LAVOURA-PECUÁRIA-FLORESTA NA EMBRAPA, Brasília, DF, 2009. Resumos e palestras apresentados. Brasília, DF: Embrapa, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 14. | | MARQUES, J. B. B.; SILVA, J. L. S. da; QUINCOZES, E. F.; LEHUGEUR, C.; COUTO, M. R. do; TROJAN, S. da C. Resultados econômicos de sistemas de integração de arroz irrigado e pecuária de corte no Rio Grande do Sul (RS). In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 6., 2009, Porto Alegre. Estresses e sustentabilidade: desafios para a lavoura arrozeira: anais. Porto Alegre: Palotti, 2009. p. 510-513.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| Registros recuperados : 14 | |
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