Energy balance of irrigated maize silage

Detalhes bibliográficos
Autor(a) principal: Ferreira, Tomás de Aquino
Data de Publicação: 2018
Outros Autores: Ferreira, Sílvia Costa, Barbosa, Jackson Antônio, Volpato, Carlos Eduardo Silva, Ferreira, Rute Costa, Silva, Marielle Jordane da, Barbosa, Leonardo Maia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/33048
Resumo: The aim of the present study is to evaluate the energy balance and energy efficiency of the silage maize crop in the Center for Research, Development and Technology Transfer of the Universidade Federal de Lavras (CDTT-UFLA). The crop was irrigated by center pivot and the stages of maize cultivation and energy inputs were monitored for the 1st and 2nd crops of the 2014/2015 harvest. Results from the energy analysis showed the crop had a total energy input of 45,643.85 MJ ha-1 and 47,303.60 MJ ha-1 for the 1st and 2nd crops and a significant predominance of direct energy type (about 92% of the matrix). Regarding direct energy inputs, the diesel oil was the most representative, contributing with approximately 38% of the total energy demand. Conversely, the irrigation system contribute with 3.92% e 5.97% in the 1st and 2nd crops, representing the largest indirect energy input. Nevertheless, irrigation and crop management allowed the system achieving high levels of productivity, resulting in an energy efficiency of 25.1 and 28.1 for the first and second crops respectively.
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spelling Energy balance of irrigated maize silageBalanço energético da cultura do milho para silagem com irrigaçãoEnergy efficiencyEnergy in agricultureCenter pivotMaize silageEficiência energéticaenergia na agriculturaPivô centralMilho - SilagemThe aim of the present study is to evaluate the energy balance and energy efficiency of the silage maize crop in the Center for Research, Development and Technology Transfer of the Universidade Federal de Lavras (CDTT-UFLA). The crop was irrigated by center pivot and the stages of maize cultivation and energy inputs were monitored for the 1st and 2nd crops of the 2014/2015 harvest. Results from the energy analysis showed the crop had a total energy input of 45,643.85 MJ ha-1 and 47,303.60 MJ ha-1 for the 1st and 2nd crops and a significant predominance of direct energy type (about 92% of the matrix). Regarding direct energy inputs, the diesel oil was the most representative, contributing with approximately 38% of the total energy demand. Conversely, the irrigation system contribute with 3.92% e 5.97% in the 1st and 2nd crops, representing the largest indirect energy input. Nevertheless, irrigation and crop management allowed the system achieving high levels of productivity, resulting in an energy efficiency of 25.1 and 28.1 for the first and second crops respectively.Este trabalho tem como objetivo avaliar o balanço energético e a eficiência energética da cultura milho para silagem implantada no Centro de Desenvolvimento e Transferência de Tecnologia da Universidade Federal de Lavras (CDTT-UFLA). A cultura foi irrigada por pivô central sendo que as etapas de cultivo do milho e entradas de energia foram acompanhadas para 1ª e 2ª safras do ano agrícola de 2014/2015. Os resultados da análise energética mostraram que a cultura teve uma entrada total de energia de 45.643,85MJ ha-1 e 47.303,60MJ ha-1 para a 1ª e 2ª safra, com uma predominância significativa de energia do tipo direta (cerca de 92% da matriz). O óleo diesel foi a fonte de energia direta que mais impactou na matriz, com uma participação de aproximadamente 38%. Já a irrigação teve uma participação de 3,92% e 5,97% na 1ª e 2ª safra respectivamente, representando a maior fonte de energia indireta. Apesar disso, a irrigação e o manejo da cultura permitiram que o sistema alcançasse altos níveis de produtividade, resultando em uma eficiência energética de 25,1 e 28,1 para a 1ª e 2ª safra.Universidade Federal de Santa Maria2019-02-25T19:11:29Z2019-02-25T19:11:29Z2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFERREIRA, T. de A. et al. Energy balance of irrigated maize silage. Ciência Rural, Santa Maria, v. 48, n. 5, p. 1-7, 2018. doi: 10.1590/0103-8478cr20170625.http://repositorio.ufla.br/jspui/handle/1/33048Ciência Ruralreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessFerreira, Tomás de AquinoFerreira, Sílvia CostaBarbosa, Jackson AntônioVolpato, Carlos Eduardo SilvaFerreira, Rute CostaSilva, Marielle Jordane daBarbosa, Leonardo Maiaeng2019-02-25T19:11:29Zoai:localhost:1/33048Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-02-25T19:11:29Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Energy balance of irrigated maize silage
Balanço energético da cultura do milho para silagem com irrigação
title Energy balance of irrigated maize silage
spellingShingle Energy balance of irrigated maize silage
Ferreira, Tomás de Aquino
Energy efficiency
Energy in agriculture
Center pivot
Maize silage
Eficiência energética
energia na agricultura
Pivô central
Milho - Silagem
title_short Energy balance of irrigated maize silage
title_full Energy balance of irrigated maize silage
title_fullStr Energy balance of irrigated maize silage
title_full_unstemmed Energy balance of irrigated maize silage
title_sort Energy balance of irrigated maize silage
author Ferreira, Tomás de Aquino
author_facet Ferreira, Tomás de Aquino
Ferreira, Sílvia Costa
Barbosa, Jackson Antônio
Volpato, Carlos Eduardo Silva
Ferreira, Rute Costa
Silva, Marielle Jordane da
Barbosa, Leonardo Maia
author_role author
author2 Ferreira, Sílvia Costa
Barbosa, Jackson Antônio
Volpato, Carlos Eduardo Silva
Ferreira, Rute Costa
Silva, Marielle Jordane da
Barbosa, Leonardo Maia
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Ferreira, Tomás de Aquino
Ferreira, Sílvia Costa
Barbosa, Jackson Antônio
Volpato, Carlos Eduardo Silva
Ferreira, Rute Costa
Silva, Marielle Jordane da
Barbosa, Leonardo Maia
dc.subject.por.fl_str_mv Energy efficiency
Energy in agriculture
Center pivot
Maize silage
Eficiência energética
energia na agricultura
Pivô central
Milho - Silagem
topic Energy efficiency
Energy in agriculture
Center pivot
Maize silage
Eficiência energética
energia na agricultura
Pivô central
Milho - Silagem
description The aim of the present study is to evaluate the energy balance and energy efficiency of the silage maize crop in the Center for Research, Development and Technology Transfer of the Universidade Federal de Lavras (CDTT-UFLA). The crop was irrigated by center pivot and the stages of maize cultivation and energy inputs were monitored for the 1st and 2nd crops of the 2014/2015 harvest. Results from the energy analysis showed the crop had a total energy input of 45,643.85 MJ ha-1 and 47,303.60 MJ ha-1 for the 1st and 2nd crops and a significant predominance of direct energy type (about 92% of the matrix). Regarding direct energy inputs, the diesel oil was the most representative, contributing with approximately 38% of the total energy demand. Conversely, the irrigation system contribute with 3.92% e 5.97% in the 1st and 2nd crops, representing the largest indirect energy input. Nevertheless, irrigation and crop management allowed the system achieving high levels of productivity, resulting in an energy efficiency of 25.1 and 28.1 for the first and second crops respectively.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019-02-25T19:11:29Z
2019-02-25T19:11:29Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv FERREIRA, T. de A. et al. Energy balance of irrigated maize silage. Ciência Rural, Santa Maria, v. 48, n. 5, p. 1-7, 2018. doi: 10.1590/0103-8478cr20170625.
http://repositorio.ufla.br/jspui/handle/1/33048
identifier_str_mv FERREIRA, T. de A. et al. Energy balance of irrigated maize silage. Ciência Rural, Santa Maria, v. 48, n. 5, p. 1-7, 2018. doi: 10.1590/0103-8478cr20170625.
url http://repositorio.ufla.br/jspui/handle/1/33048
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Rural
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1807835090098585600

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