|
|
Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
13/11/2008 |
Data da última atualização: |
13/11/2008 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
RESCK, D. V. S.; FERREIRA, E. A. B.; FIGUEIREDO, C. C.; ZINN, Y. L. |
Afiliação: |
Dimas Vital Siqueira Resck, CPAC; Eloisa Aparecida Belleza Ferreira, CPAC; Cícero Célio Figueiredo, UPIS; Yuri L. Zinn. |
Título: |
Dinâmica da matéria orgânica no Cerrado. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: SANTOS, G. de A.; SILVA, L. S. da; CANELLAS, L. P.; CAMARGO, F. A. O. (Ed.). Fundamentos da matéria orgânica do solo: ecossistemas tropicais & subtropicais. Porto Alegre: Metrópole, 2008. cap. 21, p. 359-417. |
Idioma: |
Português |
Palavras-Chave: |
Brasil. |
Thesagro: |
Cerrado; Cobertura do Solo; Manejo do Solo; Nitrogênio; Solo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00725naa a2200217 a 4500 001 1566972 005 2008-11-13 008 2008 bl uuuu u00u1 u #d 100 1 $aRESCK, D. V. S. 245 $aDinâmica da matéria orgânica no Cerrado. 260 $c2008 650 $aCerrado 650 $aCobertura do Solo 650 $aManejo do Solo 650 $aNitrogênio 650 $aSolo 653 $aBrasil 700 1 $aFERREIRA, E. A. B. 700 1 $aFIGUEIREDO, C. C. 700 1 $aZINN, Y. L. 773 $tIn: SANTOS, G. de A.; SILVA, L. S. da; CANELLAS, L. P.; CAMARGO, F. A. O. (Ed.). Fundamentos da matéria orgânica do solo: ecossistemas tropicais & subtropicais. Porto Alegre: Metrópole, 2008. cap. 21, p. 359-417.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Cerrados (CPAC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
10/03/2020 |
Data da última atualização: |
22/04/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SIMON, P. L.; DIECKOW, J.; ZANATTA, J. A.; RAMALHO, B.; RIBEIRO, R. H.; VAN DER WEERDEN, T.; KLEIN, C. A. M. de. |
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. |
Título: |
Does Brachiaria humidicola and dicyandiamide reduce nitrous oxide and ammonia emissions from cattle urine patches in the subtropics? |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Science of the Total Environment, v. 720, article 137692, June 2020. 10 p. |
DOI: |
https://doi.org/10.1016/j.scitotenv.2020.137692 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Ammonium; BNI; Espécie forrageira; Forage species; NH3; Volatilisation; Volatilização. |
Thesagro: |
Amônia; Brachiaria Humidicola; Nitrato. |
Thesaurus NAL: |
Nitrates. |
Categoria do assunto: |
-- |
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.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Florestas (CNPF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|