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| Registros recuperados : 141 | |
| 1. |  | PEDREIRA, B. C. e; PEREIRA, D. H. Recentes avanços em forragicultura e pastagens na Embrapa Agrossilvipastoril. In: FARIAS NETO, A. L. de; NASCIMENTO, A. F. do; ROSSONI, A. L.; MAGALHÃES, C. A. de S.; ITUASSU, D. R.; HOOGERHEIDE, E. S. S.; IKEDA, F. S.; FERNANDES JUNIOR, F.; FARIA, G. R.; ISERNHAGEN, I.; VENDRUSCULO, L. G.; MORALES, M. M.; CARNEVALLI, R. A. (Ed.). Embrapa Agrossilvipastoril: primeiras contribuições para o desenvolvimento de uma agropecuária sustentável. Brasília, DF: Embrapa, 2019. pt. 6, cap. 8, p. 421-426.| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 6. | | OLIVEIRA, C. M.; NASCIMENTO, A. F.; PEDREIRA, B. C.; PEREIRA, D. H.; RODRIGUES, R. A. R. Nitrous oxide (N2O) emissions from soil cultivated with grass Marandu and subjected to rates and sources of N fertilizers in Amazon of Mato Grosso. In: INTERNATIONAL SYMPOSIUM ON GREENHOUSE GASES IN AGRICULTURE, 2., 2016, Campo Grande, MS. Proceedings... Brasília, DF: Embrapa, 2016. p. 27-31. (Embrapa Gado de Corte. Documentos, 216). Coordenador Roberto Giolo de Almeida. II SIGEE.| Biblioteca(s): Embrapa Solos. |
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| 10. | | BOURSCHEIDT, M. L. B.; PEDREIRA, B. C. e; PEREIRA, D. H.; ZANETTE, M. C.; DEVENS, J. Estratégias de fornecimento de nitrogênio em pastagens: fertilizante mineral, inoculante bacteriano e consórcio com amendoim forrageiro. Scientific Electronic Archives, v. 12, n. 3, p. 137-147, 2019.| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 11. | | BOLSON, D. C.; BARBOSA, P. L.; ARNHOLD, F. A.; PEREIRA, D. H.; PEDREIRA, B. C. e. Validação de cultivares em local de síndrome da morte do braquiarão em Terra Nova do Norte ? MT IN: JORNADA CIENTÍFICA DA EMBRAPA AGROSSILVIPASTORIL, 1., 2012, Sinop, MT. Resumos... Sinop: EMBRAPA Agrossilvipastoril, 2012| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 13. | | BOLSON, D. C.; BARBOSA, P. L.; ARNHOLD, F. A.; PEREIRA, D. H.; PEDREIRA, B. C. e. Síndrome da Morte do Braquiarão: teste de cultivares em Nova Guarita - MT IN: JORNADA CIENTÍFICA DA EMBRAPA AGROSSILVIPASTORIL, 1., 2012, Sinop, MT. Resumos... Sinop: EMBRAPA Agrossilvipastoril, 2012| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 14. | | ARAGÃO, L. S.; CAVALCANTE, J. A. V.; SILVA, A. da; CAVALLI, J.; PEREIRA, D. H.; PEDREIRA, B. C. e. Acúmulo de forragem nos capins quênia e tamani no bioma amazônia. In: JORNADA CIENTÍFICA DA EMBRAPA AGROSSILVIPASTORIL, 5., 2016, Sinop. Anais. Sinop, MT: Embrapa, 2017. p. 66-68.| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 16. | | PEREIRA, D. H.; ANJOS, E. dos; GALATTO, A.; ROECKER, A. N.; PRADO, T. A.; PEDREIRA, B. C. e. Liver parameters of beef cattle intensively grazed and supplemented with non-antibiotic additives as a substitute for antibiotics. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 56., 2021, Florianópolis. Animal science: challenges in production and sustainability: proceedings... Brasília, DF: Sociedade Brasileira de Zootecnia, 2021. p. 197. Evento virtual.| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 17. | | GOMES, F. J.; CAVALLI, J.; JORGE, Y. R.; PEREIRA, D. H.; CARNEVALLI, R. A.; PEDREIRA, B. C. e. Estrutura pré- e pós-corte de capim Marandu em função da face de exposição ao sol e distância do renque em sistema silvipastoril In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 24., 2014, Vitória. A zootecnia fazendo o Brasil crescer: anais... Vitória: Universidade Federal do Espírito Santo, 2014. 3 p. 3| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| Registros recuperados : 141 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Solos. |
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Data corrente: |
22/06/2020 |
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Data da última atualização: |
28/01/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
NASCIMENTO, A. F. do; OLIVEIRA, C. M. de; PEDREIRA, B. C. e; PEREIRA, D. H.; RODRIGUES, R. de A. R. |
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Afiliação: |
ALEXANDRE FERREIRA DO NASCIMENTO, CPAMT; CARINE MOREIRA DE OLIVEIRA, UFMT; BRUNO CARNEIRO E PEDREIRA, CPAMT; DALTON HENRIQUE PEREIRA, UFMT; RENATO DE ARAGAO RIBEIRO RODRIGUES, CNPS. |
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Título: |
Nitrous oxide emissions and forage accumulation in the Brazilian Amazon forage-livestock systems submitted to N input strategies. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Grassland Science, v. 67, n. 1, p. 63-72, Jan. 2021 |
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DOI: |
https://doi.org/10.1111/grs.12287 |
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Idioma: |
Inglês |
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Conteúdo: |
In the Brazilian Amazon, nitrogen input strategies are required to maintain forage-livestock systems productivity. However, greenhouse gases (GHG) emissions mitigation from tropical soils is also a global demand. This research aims to assess productivity and nitrous oxide (N2O) emissions from Oxisol cultivated with Marandu palisade grass (Brachiaria brizantha [Hochst. Ex A.Rich.] Stapf) submitted to nitrogen (N) input strategies (N fertilization and biological N fixation) in the Brazilian Amazon. The treatments were the following: control (unfertilized); U40 (fertilized with 40 kg N/ha as urea); U80 (fertilized with 80 kg N/ha as urea); AS40 (fertilized with 40 kg N/ha as ammonium sulfate); AS80 (fertilized with 80 kg N/ha as ammonium sulfate); and IAB (inoculated with Azospirillum brasilense ). From January to March 2016, soil N2O emission, forage accumulation (FA) and relative emission (RE) were assessed during two 28-day cycles. The FA was greater in the U80 and AS80 than in control and IAB. The highest peaks of soil N2O flux occurred from 4 to 7 days after N fertilization, primarily in the highest N rates treatments. Overall, 40 kg N/ha resulted in higher N2O flux than control and IAB, which were lower than 80 kg N/ha regardless of the N source. The lowest fluxes occurred in the control and IAB (below 20 ug N-N2O m-2 hr-1). All of the emission factors (EF) calculated for both fertilizers and rates were lower than 0.35%, which is below the 1% established by the IPCC. Our results indicate the need for discussion of the EF in the pasture intensification to contribute to avoid deforestation and mitigating emissions. The inputs of 40 kg N/ha per application with urea or ammonium sulfate, due to the low EF and RE, are recommended as a pasture N input strategy in the Brazilian Amazon. MenosIn the Brazilian Amazon, nitrogen input strategies are required to maintain forage-livestock systems productivity. However, greenhouse gases (GHG) emissions mitigation from tropical soils is also a global demand. This research aims to assess productivity and nitrous oxide (N2O) emissions from Oxisol cultivated with Marandu palisade grass (Brachiaria brizantha [Hochst. Ex A.Rich.] Stapf) submitted to nitrogen (N) input strategies (N fertilization and biological N fixation) in the Brazilian Amazon. The treatments were the following: control (unfertilized); U40 (fertilized with 40 kg N/ha as urea); U80 (fertilized with 80 kg N/ha as urea); AS40 (fertilized with 40 kg N/ha as ammonium sulfate); AS80 (fertilized with 80 kg N/ha as ammonium sulfate); and IAB (inoculated with Azospirillum brasilense ). From January to March 2016, soil N2O emission, forage accumulation (FA) and relative emission (RE) were assessed during two 28-day cycles. The FA was greater in the U80 and AS80 than in control and IAB. The highest peaks of soil N2O flux occurred from 4 to 7 days after N fertilization, primarily in the highest N rates treatments. Overall, 40 kg N/ha resulted in higher N2O flux than control and IAB, which were lower than 80 kg N/ha regardless of the N source. The lowest fluxes occurred in the control and IAB (below 20 ug N-N2O m-2 hr-1). All of the emission factors (EF) calculated for both fertilizers and rates were lower than 0.35%, which is below the 1% established by the IPCC. Our ... Mostrar Tudo |
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Palavras-Chave: |
Mitigação. |
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Thesagro: |
Fertilizante; Mudança Climática; Pecuária. |
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Thesaurus NAL: |
Climate change; Fertilizers; Livestock. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230695/1/2021-cpamt-bcp-nitroux-oxide-emissions-forage-accumulation-brazilian-amazon-forage-livestock-systems-input-strategies.pdf
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Marc: |
LEADER 02644naa a2200265 a 4500
001 2129729
005 2022-01-28
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/grs.12287$2DOI
100 1 $aNASCIMENTO, A. F. do
245 $aNitrous oxide emissions and forage accumulation in the Brazilian Amazon forage-livestock systems submitted to N input strategies.$h[electronic resource]
260 $c2021
520 $aIn the Brazilian Amazon, nitrogen input strategies are required to maintain forage-livestock systems productivity. However, greenhouse gases (GHG) emissions mitigation from tropical soils is also a global demand. This research aims to assess productivity and nitrous oxide (N2O) emissions from Oxisol cultivated with Marandu palisade grass (Brachiaria brizantha [Hochst. Ex A.Rich.] Stapf) submitted to nitrogen (N) input strategies (N fertilization and biological N fixation) in the Brazilian Amazon. The treatments were the following: control (unfertilized); U40 (fertilized with 40 kg N/ha as urea); U80 (fertilized with 80 kg N/ha as urea); AS40 (fertilized with 40 kg N/ha as ammonium sulfate); AS80 (fertilized with 80 kg N/ha as ammonium sulfate); and IAB (inoculated with Azospirillum brasilense ). From January to March 2016, soil N2O emission, forage accumulation (FA) and relative emission (RE) were assessed during two 28-day cycles. The FA was greater in the U80 and AS80 than in control and IAB. The highest peaks of soil N2O flux occurred from 4 to 7 days after N fertilization, primarily in the highest N rates treatments. Overall, 40 kg N/ha resulted in higher N2O flux than control and IAB, which were lower than 80 kg N/ha regardless of the N source. The lowest fluxes occurred in the control and IAB (below 20 ug N-N2O m-2 hr-1). All of the emission factors (EF) calculated for both fertilizers and rates were lower than 0.35%, which is below the 1% established by the IPCC. Our results indicate the need for discussion of the EF in the pasture intensification to contribute to avoid deforestation and mitigating emissions. The inputs of 40 kg N/ha per application with urea or ammonium sulfate, due to the low EF and RE, are recommended as a pasture N input strategy in the Brazilian Amazon.
650 $aClimate change
650 $aFertilizers
650 $aLivestock
650 $aFertilizante
650 $aMudança Climática
650 $aPecuária
653 $aMitigação
700 1 $aOLIVEIRA, C. M. de
700 1 $aPEDREIRA, B. C. e
700 1 $aPEREIRA, D. H.
700 1 $aRODRIGUES, R. de A. R.
773 $tGrassland Science$gv. 67, n. 1, p. 63-72, Jan. 2021
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Embrapa Agrossilvipastoril (CPAMT) |
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