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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
29/04/2020 |
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Data da última atualização: |
08/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUARECHI, R. F.; MARTINS, M. dos R.; URQUIAGA, S.; ALVES, B. J. R.; BODDEY, R. M.; SARKIS, L. F. |
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Afiliação: |
Roni Fernandes Guareschi, UFRRJ; Marcio dos Reis Martins, UFRRJ; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB; ROBERT MICHAEL BODDEY, CNPAB; Leonardo Fernandes Sarkis, UFLA. |
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Título: |
Energy efficiency and emissions of CO2, CH4, and N2O in organic and conventional rice production. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 41, n. 3, p. 797-810, 2020. |
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DOI: |
10.5433/1679-0359.2020v41n3p797 |
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Idioma: |
Inglês |
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Conteúdo: |
Rice is the second-most produced cereal worldwide and actively contributes to greenhouse gas (GHG) emissions, particularly methane, especially under deepwater production. Assessments of energy efficiency (EE) and GHG emissions can indicate the sustainability level of agrosystems and support decisions related to the reduction of production costs and environmental pollution. This study aimed to assess both EE and GHG emissions in organic and conventional rice production in the Southern region of Brazil. For this study, eight rice fields were evaluated. Energy inputs and outputs were calculated by multiplying the production input amounts by their respective calorific values or energy coefficients at each stage of production. EE was determined using the ratio between the total energy output and the total energy consumed during the production process. GHG emissions were estimated using the principles of the lifecycle assessment methodology in addition to the Intergovernmental Panel on Climate Change (IPCC) recommendations. Each 1.0 MJ consumed during the production of organic and conventional rice produced renewable energy averages of 10.5 MJ and 7.90 MJ, respectively, as grains. The primary energy expenses for organic rice were represented by seeds, fuel, tractors, and agricultural machinery and implements, and those for conventional rice were seeds, fuel, and fertilizers. Each kilogram of organic and conventional rice produced accounted for the emission of 0.21 and 0.32 kg of CO(2)eq, respectively, during the production cycles and delivery to the warehouse, with seeds, fuel, and fertilizers being the main sources of CO(2)eq emissions to the atmosphere. MenosRice is the second-most produced cereal worldwide and actively contributes to greenhouse gas (GHG) emissions, particularly methane, especially under deepwater production. Assessments of energy efficiency (EE) and GHG emissions can indicate the sustainability level of agrosystems and support decisions related to the reduction of production costs and environmental pollution. This study aimed to assess both EE and GHG emissions in organic and conventional rice production in the Southern region of Brazil. For this study, eight rice fields were evaluated. Energy inputs and outputs were calculated by multiplying the production input amounts by their respective calorific values or energy coefficients at each stage of production. EE was determined using the ratio between the total energy output and the total energy consumed during the production process. GHG emissions were estimated using the principles of the lifecycle assessment methodology in addition to the Intergovernmental Panel on Climate Change (IPCC) recommendations. Each 1.0 MJ consumed during the production of organic and conventional rice produced renewable energy averages of 10.5 MJ and 7.90 MJ, respectively, as grains. The primary energy expenses for organic rice were represented by seeds, fuel, tractors, and agricultural machinery and implements, and those for conventional rice were seeds, fuel, and fertilizers. Each kilogram of organic and conventional rice produced accounted for the emission of 0.21 and 0.32 kg of C... Mostrar Tudo |
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Palavras-Chave: |
Rice farming. |
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Thesaurus Nal: |
Environmental sustainability; Greenhouse gases. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02398naa a2200229 a 4500
001 2121952
005 2021-01-08
008 2020 bl uuuu u00u1 u #d
024 7 $a10.5433/1679-0359.2020v41n3p797$2DOI
100 1 $aGUARECHI, R. F.
245 $aEnergy efficiency and emissions of CO2, CH4, and N2O in organic and conventional rice production.$h[electronic resource]
260 $c2020
520 $aRice is the second-most produced cereal worldwide and actively contributes to greenhouse gas (GHG) emissions, particularly methane, especially under deepwater production. Assessments of energy efficiency (EE) and GHG emissions can indicate the sustainability level of agrosystems and support decisions related to the reduction of production costs and environmental pollution. This study aimed to assess both EE and GHG emissions in organic and conventional rice production in the Southern region of Brazil. For this study, eight rice fields were evaluated. Energy inputs and outputs were calculated by multiplying the production input amounts by their respective calorific values or energy coefficients at each stage of production. EE was determined using the ratio between the total energy output and the total energy consumed during the production process. GHG emissions were estimated using the principles of the lifecycle assessment methodology in addition to the Intergovernmental Panel on Climate Change (IPCC) recommendations. Each 1.0 MJ consumed during the production of organic and conventional rice produced renewable energy averages of 10.5 MJ and 7.90 MJ, respectively, as grains. The primary energy expenses for organic rice were represented by seeds, fuel, tractors, and agricultural machinery and implements, and those for conventional rice were seeds, fuel, and fertilizers. Each kilogram of organic and conventional rice produced accounted for the emission of 0.21 and 0.32 kg of CO(2)eq, respectively, during the production cycles and delivery to the warehouse, with seeds, fuel, and fertilizers being the main sources of CO(2)eq emissions to the atmosphere.
650 $aEnvironmental sustainability
650 $aGreenhouse gases
653 $aRice farming
700 1 $aMARTINS, M. dos R.
700 1 $aURQUIAGA, S.
700 1 $aALVES, B. J. R.
700 1 $aBODDEY, R. M.
700 1 $aSARKIS, L. F.
773 $tSemina: Ciências Agrárias$gv. 41, n. 3, p. 797-810, 2020.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
30/12/2010 |
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Data da última atualização: |
30/12/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CARVALHO, T. D.; SIQUEIRA, F.; SOARES, C. O.; TORRES JUNIOR, R. A. de A.; MEDEIROS, S. R. de; SOUZA JUNIOR, M. D.; BLECHA, I. M. Z.; FLORES, R. S; MACHADO, C. O. F. |
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Afiliação: |
Mestrando em Ciência Animal da UFMS, bolsista Fundect na Embrapa Gado de Corte; FABIANE SIQUEIRA, CNPGC; CLEBER OLIVEIRA SOARES, CNPGC; ROBERTO AUGUSTO DE A TORRES JUNIOR, CNPGC; SERGIO RAPOSO DE MEDEIROS, CNPGC; Mestrando em Ciencia Animal da UFMS, bolsista DTI-III/CNPq na Embrapa Gado de Corte; Acadêmica do curso de Ciências Biológicas da Uniderp/Anhanguera, bolsista IC na Embrapa Gado de Corte.; Bolsista DTI-III/CNPq na Embrapa Gado de Corte; Acadêmica de Ciências Biológicas da UFMS, bolsista IC/Fundect na Embrapa Gado de Corte. |
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Título: |
Avaliação de polimorfismos de nucleotídeos únicos (snps) em genes relacionados às características de qualidade de carne em bovinos de corte. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: JORNADA CIENTÍFICA DA EMBRAPA GADO DE CORTE,5., 2009, Campo Grande, MS. [Anais da ...]. Campo Grande, MS: Embrapa Gado de Corte, 2009. |
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Páginas: |
1 p. |
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Idioma: |
Português |
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Conteúdo: |
Este trabalho tem como objetivo avaliar as freqüências alélicas e genotípicas de SNPs nos genes CAPN1, CAST, TG, DGAT1 e LEP, e a associação desses com características como maciez, marmoreio e deposição de gordura na carcaça em 200 animais (machos e fêmeas) cruzados. |
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Palavras-Chave: |
Bovino de corte; Qualidade da carne. |
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Thesagro: |
Melhoramento Genético Animal. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/24587/1/AVALIACAO-DE-POLIMORFISMOS-DE-NUCLEOTIDEOS-UNICOS-SNPs-EM-GENES.pdf
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Marc: |
LEADER 01193nam a2200253 a 4500
001 1871301
005 2010-12-30
008 2009 bl uuuu u00u1 u #d
100 1 $aCARVALHO, T. D.
245 $aAvaliação de polimorfismos de nucleotídeos únicos (snps) em genes relacionados às características de qualidade de carne em bovinos de corte.$h[electronic resource]
260 $aIn: JORNADA CIENTÍFICA DA EMBRAPA GADO DE CORTE,5., 2009, Campo Grande, MS. [Anais da ...]. Campo Grande, MS: Embrapa Gado de Corte$c2009
300 $a1 p.
520 $aEste trabalho tem como objetivo avaliar as freqüências alélicas e genotípicas de SNPs nos genes CAPN1, CAST, TG, DGAT1 e LEP, e a associação desses com características como maciez, marmoreio e deposição de gordura na carcaça em 200 animais (machos e fêmeas) cruzados.
650 $aMelhoramento Genético Animal
653 $aBovino de corte
653 $aQualidade da carne
700 1 $aSIQUEIRA, F.
700 1 $aSOARES, C. O.
700 1 $aTORRES JUNIOR, R. A. de A.
700 1 $aMEDEIROS, S. R. de
700 1 $aSOUZA JUNIOR, M. D.
700 1 $aBLECHA, I. M. Z.
700 1 $aFLORES, R. S
700 1 $aMACHADO, C. O. F.
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