Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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/20.500.12207/5063 |
Resumo: | In intensive irrigated farming systems, the way to improve productive efficiency depends on the proper management of resources. With the implementation of the Alqueva global irrigation system in the southern Portugal region of Alentejo, agricultural intensification is a reality that imposes to farmers the challenge of producing more and more efficiently, ensuring the farming systems sustainability. This work resulted from an on-farm demonstration project carried out in two locations in the Alqueva region. Water use and water productivity were studied during 2012/2013 and 2013/2014, in three double cropping systems: a maize monoculture (MM) and two rotations, barley + maize-barley (BM-B) and sunflower-barley + maize (S-BM). Maize yields were influenced by the length of the crop cycle. In the rotation BM-B, with a predominance of autumn-winter crops, water requirements were lower and the total volume of irrigation applied was approximately half of the monoculture (5930 m3/ha and 13,230 m3/ha, respectively). When the potential crop yield was reached, maize had the higher water productivity (the highest value achieved was of 2.7 kg/m3). Overall, as a result of the lower yields achieved, the water productivity values indicate a less balanced performance of the S-BM rotation. |
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Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal)AlquevaMonocultureCrop rotationwater extractionwater productivityIn intensive irrigated farming systems, the way to improve productive efficiency depends on the proper management of resources. With the implementation of the Alqueva global irrigation system in the southern Portugal region of Alentejo, agricultural intensification is a reality that imposes to farmers the challenge of producing more and more efficiently, ensuring the farming systems sustainability. This work resulted from an on-farm demonstration project carried out in two locations in the Alqueva region. Water use and water productivity were studied during 2012/2013 and 2013/2014, in three double cropping systems: a maize monoculture (MM) and two rotations, barley + maize-barley (BM-B) and sunflower-barley + maize (S-BM). Maize yields were influenced by the length of the crop cycle. In the rotation BM-B, with a predominance of autumn-winter crops, water requirements were lower and the total volume of irrigation applied was approximately half of the monoculture (5930 m3/ha and 13,230 m3/ha, respectively). When the potential crop yield was reached, maize had the higher water productivity (the highest value achieved was of 2.7 kg/m3). Overall, as a result of the lower yields achieved, the water productivity values indicate a less balanced performance of the S-BM rotation.2019-12-16T12:21:20Z2017-01-01T00:00:00Z2017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12207/5063eng0133-372010.1556/0806.45.2017.036Tomaz, AlexandraPatanita, ManuelGuerreiro, IsabelBoteta, LuísFerro Palma, Joséinfo: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:RCAAP2022-06-23T07:47:25Zoai:repositorio.ipbeja.pt:20.500.12207/5063Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T14:59:13.314609Repositório 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 |
Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal) |
title |
Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal) |
spellingShingle |
Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal) Tomaz, Alexandra Alqueva Monoculture Crop rotation water extraction water productivity |
title_short |
Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal) |
title_full |
Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal) |
title_fullStr |
Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal) |
title_full_unstemmed |
Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal) |
title_sort |
Water use and productivity of maize-based cropping systems in the Alqueva region (Portugal) |
author |
Tomaz, Alexandra |
author_facet |
Tomaz, Alexandra Patanita, Manuel Guerreiro, Isabel Boteta, Luís Ferro Palma, José |
author_role |
author |
author2 |
Patanita, Manuel Guerreiro, Isabel Boteta, Luís Ferro Palma, José |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Tomaz, Alexandra Patanita, Manuel Guerreiro, Isabel Boteta, Luís Ferro Palma, José |
dc.subject.por.fl_str_mv |
Alqueva Monoculture Crop rotation water extraction water productivity |
topic |
Alqueva Monoculture Crop rotation water extraction water productivity |
description |
In intensive irrigated farming systems, the way to improve productive efficiency depends on the proper management of resources. With the implementation of the Alqueva global irrigation system in the southern Portugal region of Alentejo, agricultural intensification is a reality that imposes to farmers the challenge of producing more and more efficiently, ensuring the farming systems sustainability. This work resulted from an on-farm demonstration project carried out in two locations in the Alqueva region. Water use and water productivity were studied during 2012/2013 and 2013/2014, in three double cropping systems: a maize monoculture (MM) and two rotations, barley + maize-barley (BM-B) and sunflower-barley + maize (S-BM). Maize yields were influenced by the length of the crop cycle. In the rotation BM-B, with a predominance of autumn-winter crops, water requirements were lower and the total volume of irrigation applied was approximately half of the monoculture (5930 m3/ha and 13,230 m3/ha, respectively). When the potential crop yield was reached, maize had the higher water productivity (the highest value achieved was of 2.7 kg/m3). Overall, as a result of the lower yields achieved, the water productivity values indicate a less balanced performance of the S-BM rotation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01T00:00:00Z 2017-01-01T00:00:00Z 2019-12-16T12:21:20Z |
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/20.500.12207/5063 |
url |
http://hdl.handle.net/20.500.12207/5063 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0133-3720 10.1556/0806.45.2017.036 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
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 |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
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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1799129865485549568 |