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| Registros recuperados : 55 | |
| 6. |  | MORAIS, J. W. de; SILVA, E. P. da. Occurrence of Symphyla (Myriapoda) in the region of the Upper Solimões River, Amazonas, Brazil. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 8, p. 981-983, ago. 2009 Título em português: Ocorrência de Symphyla (Myriapoda) na região do Alto Rio Solimões, Amazonas.| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Unidades Centrais. |
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| 15. | | SILVA, E. P. da; CUNHA, G. R. da; PIRES, J. L. F.; DALMAGO, G. A.; PASINATO, A. Fatores abióticos envolvidos na tolerância de trigo à geada. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 10, p. 1257-1265, out. 2008.| Biblioteca(s): Embrapa Trigo. |
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| 16. | | SILVA, E. P. da; SOUZA, A. P. de; MINETTE, L. J.; BAETA, F. da C.; VIEIRA, H. A. N. F. Avaliação biomecânica do trabalho de extração manual de madeira em áreas acidentadas. Scientia Forestalis, Piracicaba, v. 36, n. 79, p 231-235, set. 2008.| Biblioteca(s): Embrapa Florestas. |
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| 17. | | SILVA, E. P da; OLIVEIRA, C. A. G. de; MONTEIRO, E. de C.; PAES, L. N.; URQUIAGA, S. Eficiência energética e emissões de CO2eq na cultura da soja de alta produtividade. In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 22., 2022, Seropédica. Bicentenário da Independência: 200 anos de ciência, tecnologia e inovação no Brasil: caderno de resumos... Seropédica: Embrapa Agrobiologia, 2022.| Biblioteca(s): Embrapa Agrobiologia. |
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| 18. | | SILVA, E. P. da; CUNHA, G. R.; PIRES, J. L. F.; DALMAGO, G. A.; SCHEEREN, P. L.; PASINATO, A. Influência da aclimatação e da intensidade de geada em trigo. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 15., 2007, Aracaju. Efeitos das mudanças climáticas na agricultura: anais. Aracaju: Sociedade Brasileira de Agrometeorologia: Embrapa Tabuleiros Costeiros, 2007. 1 CD-ROM. 5 p.| Biblioteca(s): Embrapa Trigo. |
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| 19. | | SILVA, E. P. da; PIRES, J. L. F.; CUNHA, G. R. da; HENNERICH, J.; NICKNICK, F.; UGHINI, S.; PASINATO, A. Caracterização de cultivares de trigo à intensidade de geada. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 14., 2005, Campinas. Agrometeorologia, agroclimatologia e agronegócio: anais. Campinas: UNICAMP, 2005. p. 22.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 20. | | SILVA, E. P. da; PIRES, J. L. F.; CUNHA, G. R. da; HENNERICH, J.; NICKNICK, F.; UGHINI, S.; PASINATO, A. Caracterização de cultivares de trigo à intensidade de geada. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 14., 2005, Campinas. Agrometeorologia, agroclimatologia e agronegócio: anais. Campinas: UNICAMP, 2005. 1 CD-ROM. BIO065_Expandido.doc.| Biblioteca(s): Embrapa Trigo. |
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| Registros recuperados : 55 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
09/11/2021 |
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Data da última atualização: |
09/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GUARESCH, R. F.; SILVA, E. P. da; URQUIAGA, S.; ALVES, B. J. R.; BODDEY, R. M.; SARKIS, L. F.; JANTALIA, C. P. |
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Afiliação: |
RONI FERNANDES GUARESCHI, UFRRJ; ELDERSON PEREIRA DA SILVA, UFRRJ; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB; ROBERT MICHAEL BODDEY, CNPAB; LEONARDO FERNANDES SARKIS, UFRRJ; CLAUDIA POZZI JANTALIA, CNPAB. |
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Título: |
Energy efficiency in maize crops in different regions of Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 42, n. 4, p. 2271-2292, 2021. |
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DOI: |
10.5433/1679-0359.2021v42n4p2271 |
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Idioma: |
Inglês |
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Conteúdo: |
Assessment of energy efficiency (EE) enables the evaluation of the sustainability of agrosystems, as well as decision-making regarding reduction in production costs and environmental pollution and even to increase production in a sustainable way. In this context, the objective of this study was to assess energy efficiency in maize in different regions of Brazil. For this purpose, 32 areas of maize crop distributed across the major producing states and regions were assessed. Energy inputs and outputs of agricultural operations and/or agricultural inputs were calculated by multiplying the amount used by their calorific value or energy coefficient at each stage of production. Energy efficiency was calculated as the ratio between the total output energy and the total input energy during the production process. For every megajoule (MJ) of energy consumed in the production of second-crop maize and first-crop maize seasons, 9.9 and 8.7 MJ respectively of renewable energy were produced in the form of grain. In both maize cropping seasons, most of the energy use was attributed to fertilizers, herbicides and fuel. To be representative the evaluation of energy efficiency of the maize crop should be performed in different Brazilian cultivation regions, as it will represent different edaphoclimatic and management conditions spread over the national territory within an agricultural year. |
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Palavras-Chave: |
Brazilian territory; Energy consumption. |
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Thesagro: |
Zea Mays. |
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Thesaurus NAL: |
Grain yield. |
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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/227577/1/Energy-efficiency-in-maize-crops-in-different-regions-of-Brazil.pdf
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Marc: |
LEADER 02133naa a2200253 a 4500
001 2135963
005 2021-11-09
008 2021 bl uuuu u00u1 u #d
024 7 $a10.5433/1679-0359.2021v42n4p2271$2DOI
100 1 $aGUARESCH, R. F.
245 $aEnergy efficiency in maize crops in different regions of Brazil.$h[electronic resource]
260 $c2021
520 $aAssessment of energy efficiency (EE) enables the evaluation of the sustainability of agrosystems, as well as decision-making regarding reduction in production costs and environmental pollution and even to increase production in a sustainable way. In this context, the objective of this study was to assess energy efficiency in maize in different regions of Brazil. For this purpose, 32 areas of maize crop distributed across the major producing states and regions were assessed. Energy inputs and outputs of agricultural operations and/or agricultural inputs were calculated by multiplying the amount used by their calorific value or energy coefficient at each stage of production. Energy efficiency was calculated as the ratio between the total output energy and the total input energy during the production process. For every megajoule (MJ) of energy consumed in the production of second-crop maize and first-crop maize seasons, 9.9 and 8.7 MJ respectively of renewable energy were produced in the form of grain. In both maize cropping seasons, most of the energy use was attributed to fertilizers, herbicides and fuel. To be representative the evaluation of energy efficiency of the maize crop should be performed in different Brazilian cultivation regions, as it will represent different edaphoclimatic and management conditions spread over the national territory within an agricultural year.
650 $aGrain yield
650 $aZea Mays
653 $aBrazilian territory
653 $aEnergy consumption
700 1 $aSILVA, E. P. da
700 1 $aURQUIAGA, S.
700 1 $aALVES, B. J. R.
700 1 $aBODDEY, R. M.
700 1 $aSARKIS, L. F.
700 1 $aJANTALIA, C. P.
773 $tSemina: Ciências Agrárias$gv. 42, n. 4, p. 2271-2292, 2021.
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Embrapa Agrobiologia (CNPAB) |
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