Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/23747 https://doi.org/Baptista, F.J., Silva, L.L., Murcho, D. (2018) Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal. Acta Horticulturae, 1227, 181-188. http://dx.doi.org/10.17660/ActaHortic.2018.1227.22 https://doi.org/http://dx.doi.org/10.17660/ActaHortic.2018.1227.22 |
Resumo: | In recent years, there has been a significant increase in the consumption of zucchini (Cucurbita pepo L.) in Portugal, which has led to increased production of this vegetable. There is still a deficit of production in winter, but, in summer, production is higher than demand, allowing exportation. At present, there is a positive ratio between zucchini annual exportation/importation values. This means that it is an attractive crop for farmers, especially in the western region of Portugal, which has a microclimate favourable for this crop. The mild winter conditions of the region allow crop growth in unheated greenhouses, which is an advantage for reducing production costs and energy consumption compared with other regions. Crop productivity, either in soil or hydroponics, has increased through the use of better production techniques, modern fertigation systems and new and more productive cultivars. Several improvements in technology and crop practices may now contribute to increased resource-use efficiency, decreasing the negative environmental impact sometimes associated with greenhouse production. The main objective of this work was to evaluate the energy consumption (direct and indirect) and the greenhouse gas (GHG) emissions of greenhouse zucchini produced in the western region of Portugal. All the data were obtained through questionnaires performed directly with growers, which have been previously selected as representative of crop practices and greenhouse type in the region. The results show total energy consumption varying between 4.69 and 6.57 GJ t-1, the electricity used for irrigation making up the largest contribution, followed by the greenhouse material and fertilizers. With this work, the most important inputs were identified, allowing the proposal of alternative measures to improve efficiency and sustainability |
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Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of PortugalhydroponicsenergyMediterranean conditionsIn recent years, there has been a significant increase in the consumption of zucchini (Cucurbita pepo L.) in Portugal, which has led to increased production of this vegetable. There is still a deficit of production in winter, but, in summer, production is higher than demand, allowing exportation. At present, there is a positive ratio between zucchini annual exportation/importation values. This means that it is an attractive crop for farmers, especially in the western region of Portugal, which has a microclimate favourable for this crop. The mild winter conditions of the region allow crop growth in unheated greenhouses, which is an advantage for reducing production costs and energy consumption compared with other regions. Crop productivity, either in soil or hydroponics, has increased through the use of better production techniques, modern fertigation systems and new and more productive cultivars. Several improvements in technology and crop practices may now contribute to increased resource-use efficiency, decreasing the negative environmental impact sometimes associated with greenhouse production. The main objective of this work was to evaluate the energy consumption (direct and indirect) and the greenhouse gas (GHG) emissions of greenhouse zucchini produced in the western region of Portugal. All the data were obtained through questionnaires performed directly with growers, which have been previously selected as representative of crop practices and greenhouse type in the region. The results show total energy consumption varying between 4.69 and 6.57 GJ t-1, the electricity used for irrigation making up the largest contribution, followed by the greenhouse material and fertilizers. With this work, the most important inputs were identified, allowing the proposal of alternative measures to improve efficiency and sustainabilityISHS2018-12-19T13:07:20Z2018-12-192018-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/23747https://doi.org/Baptista, F.J., Silva, L.L., Murcho, D. (2018) Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal. Acta Horticulturae, 1227, 181-188. http://dx.doi.org/10.17660/ActaHortic.2018.1227.22http://hdl.handle.net/10174/23747https://doi.org/http://dx.doi.org/10.17660/ActaHortic.2018.1227.22engICAAMfb@uevora.ptllsilva@uevora.ptdinam@uevora.pt580Baptista, F.J.Silva, L.L.Murcho, D.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:16:18Zoai:dspace.uevora.pt:10174/23747Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:14:35.780831Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal |
title |
Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal |
spellingShingle |
Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal Baptista, F.J. hydroponics energy Mediterranean conditions |
title_short |
Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal |
title_full |
Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal |
title_fullStr |
Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal |
title_full_unstemmed |
Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal |
title_sort |
Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal |
author |
Baptista, F.J. |
author_facet |
Baptista, F.J. Silva, L.L. Murcho, D. |
author_role |
author |
author2 |
Silva, L.L. Murcho, D. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Baptista, F.J. Silva, L.L. Murcho, D. |
dc.subject.por.fl_str_mv |
hydroponics energy Mediterranean conditions |
topic |
hydroponics energy Mediterranean conditions |
description |
In recent years, there has been a significant increase in the consumption of zucchini (Cucurbita pepo L.) in Portugal, which has led to increased production of this vegetable. There is still a deficit of production in winter, but, in summer, production is higher than demand, allowing exportation. At present, there is a positive ratio between zucchini annual exportation/importation values. This means that it is an attractive crop for farmers, especially in the western region of Portugal, which has a microclimate favourable for this crop. The mild winter conditions of the region allow crop growth in unheated greenhouses, which is an advantage for reducing production costs and energy consumption compared with other regions. Crop productivity, either in soil or hydroponics, has increased through the use of better production techniques, modern fertigation systems and new and more productive cultivars. Several improvements in technology and crop practices may now contribute to increased resource-use efficiency, decreasing the negative environmental impact sometimes associated with greenhouse production. The main objective of this work was to evaluate the energy consumption (direct and indirect) and the greenhouse gas (GHG) emissions of greenhouse zucchini produced in the western region of Portugal. All the data were obtained through questionnaires performed directly with growers, which have been previously selected as representative of crop practices and greenhouse type in the region. The results show total energy consumption varying between 4.69 and 6.57 GJ t-1, the electricity used for irrigation making up the largest contribution, followed by the greenhouse material and fertilizers. With this work, the most important inputs were identified, allowing the proposal of alternative measures to improve efficiency and sustainability |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-19T13:07:20Z 2018-12-19 2018-11-01T00:00:00Z |
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 |
http://hdl.handle.net/10174/23747 https://doi.org/Baptista, F.J., Silva, L.L., Murcho, D. (2018) Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal. Acta Horticulturae, 1227, 181-188. http://dx.doi.org/10.17660/ActaHortic.2018.1227.22 http://hdl.handle.net/10174/23747 https://doi.org/http://dx.doi.org/10.17660/ActaHortic.2018.1227.22 |
url |
http://hdl.handle.net/10174/23747 https://doi.org/Baptista, F.J., Silva, L.L., Murcho, D. (2018) Energy consumption and greenhouse gas emissions of zucchini (Cucurbita pepo L.) cultivated in hydroponic greenhouses in the western region of Portugal. Acta Horticulturae, 1227, 181-188. http://dx.doi.org/10.17660/ActaHortic.2018.1227.22 https://doi.org/http://dx.doi.org/10.17660/ActaHortic.2018.1227.22 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
ICAAM fb@uevora.pt llsilva@uevora.pt dinam@uevora.pt 580 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
ISHS |
publisher.none.fl_str_mv |
ISHS |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136627522535424 |