| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Solos. |
|
Data corrente: |
22/06/2020 |
|
Data da última atualização: |
28/01/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
NASCIMENTO, A. F. do; OLIVEIRA, C. M. de; PEDREIRA, B. C. e; PEREIRA, D. H.; RODRIGUES, R. de A. R. |
|
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. |
|
Título: |
Nitrous oxide emissions and forage accumulation in the Brazilian Amazon forage-livestock systems submitted to N input strategies. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Grassland Science, v. 67, n. 1, p. 63-72, Jan. 2021 |
|
DOI: |
https://doi.org/10.1111/grs.12287 |
|
Idioma: |
Inglês |
|
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 |
|
Palavras-Chave: |
Mitigação. |
|
Thesagro: |
Fertilizante; Mudança Climática; Pecuária. |
|
Thesaurus Nal: |
Climate change; Fertilizers; Livestock. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
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
|
|
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
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agricultura Digital. |
|
Data corrente: |
29/12/2016 |
|
Data da última atualização: |
07/01/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 2 |
|
Autoria: |
SILVA, R. de O.; BARIONI, L. G.; MORAN, D. |
|
Afiliação: |
RAFAEL DE OLIVEIRA SILVA, The University of Edinburgh, SRUC; LUIS GUSTAVO BARIONI, CNPTIA; DOMINIC MORAN, SRUC. |
|
Título: |
Greenhouse gas mitigation through sustainable intensification of livestock production in the Brazilian Cerrado. |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
EuroChoices, v. 14, n. 1, p. 28-34, Apr. 2015. |
|
DOI: |
10.1111/1746-692X.12079 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Brazilian greenhouse gas emissions (GHG) are projected to reach 3.2 gigatonnes (CO2 eq.) by 2020. The government has made a voluntary commitment to reduce this figure by 40 per cent. A reduction in deforestation and livestock mitigation measures are key components of this commitment. Focusing on the Cerrado core (central Brazilian Savannah), we analyse abatement potential and cost-effectiveness of GHG mitigation measures applicable to livestock production. We focus on the role of intensification measures, particularly pasture restoration and animal performance to meet the objectives of increasing beef production to meet higher demand, while simultaneously reducing emissions. |
|
Palavras-Chave: |
Gases do efeito estufa; Produção pecuária. |
|
Thesagro: |
Cerrado. |
|
Thesaurus NAL: |
Environmental policy; Greenhouse gas emissions; Livestock production. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01406naa a2200229 a 4500
001 2059585
005 2020-01-07
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1111/1746-692X.12079$2DOI
100 1 $aSILVA, R. de O.
245 $aGreenhouse gas mitigation through sustainable intensification of livestock production in the Brazilian Cerrado.$h[electronic resource]
260 $c2015
520 $aBrazilian greenhouse gas emissions (GHG) are projected to reach 3.2 gigatonnes (CO2 eq.) by 2020. The government has made a voluntary commitment to reduce this figure by 40 per cent. A reduction in deforestation and livestock mitigation measures are key components of this commitment. Focusing on the Cerrado core (central Brazilian Savannah), we analyse abatement potential and cost-effectiveness of GHG mitigation measures applicable to livestock production. We focus on the role of intensification measures, particularly pasture restoration and animal performance to meet the objectives of increasing beef production to meet higher demand, while simultaneously reducing emissions.
650 $aEnvironmental policy
650 $aGreenhouse gas emissions
650 $aLivestock production
650 $aCerrado
653 $aGases do efeito estufa
653 $aProdução pecuária
700 1 $aBARIONI, L. G.
700 1 $aMORAN, D.
773 $tEuroChoices$gv. 14, n. 1, p. 28-34, Apr. 2015.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
