Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal

Detalhes bibliográficos
Autor(a) principal: Patanita, Manuel
Data de Publicação: 2019
Outros Autores: Tomaz, Alexandra, Ramos, Tiago, Oliveira, Patrícia, Boteta, Luís, Dôres, José
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/102891
Resumo: POCI-01-0145-FEDER-023262 LISBOA-01-0145-FEDER-023262 SAICT-POL/23262/2016
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spelling Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern PortugalClimate changeClimate uncertaintyEnhanced efficiency fertilizersGrain yieldIrrigationNitrogen fertilizationWheatEcology, Evolution, Behavior and SystematicsEcologyPlant ScienceSDG 2 - Zero HungerSDG 13 - Climate ActionPOCI-01-0145-FEDER-023262 LISBOA-01-0145-FEDER-023262 SAICT-POL/23262/2016Global climate change accentuates the seasonal and interannual irregularity of temperature and precipitation of the Mediterranean climate. The consequences of this variability on wheat production are felt on its development cycle and productivity, making the production chain of this crop vulnerable to the occurrence of years with abnormal distributions of precipitation and with extreme temperatures. Adaptation strategies like irrigation or fertilization can help to cope with the negative impacts of climate uncertainty. This study evaluated the effects of water regime and nitrogen (N) fertilization techniques on wheat production in southern Portugal based on the results of three trials conducted in two agricultural years (2016/2017 and 2017/2018) with contrasting climate conditions. Phenology and yield were evaluated by comparing water regimes (R1, full irrigation; R2, supplemental irrigation at four stages: start of stem extension, booting, anthesis, grain filling; R0, rainfed (in 2017/2018)) and N fertilization splitting/timing and type (conventional and enhanced efficiency fertilizers (EEFs): controlled-release N, stabilized with nitrification inhibitor, and stabilized with urease inhibitor). Significant effects of water regime on grain yield were obtained in 2016/2017, a year with extreme aridity and high water requirements felt from the tillering stage, in the trial with conventional fertilizers. In 2017/2018, when a beneficial seasonal rainfall distribution occurred, water regime did not influence grain yield, pointing to the feasibility of supplementary irrigation to maximize water productivity. Nitrogen fertilization influenced yield and its components, with the highest values of grain yield being obtained with conventional fertilizer. Regardless of the possible effects on grain quality, the use of EEF did not prove to have an indisputable effect on wheat yield in the conditions under which the trials were conducted. Comparison of the results in the two years accentuates the need to continue the evaluation of the influence of agronomic management in wheat production in the context of adaptation to the climatic uncertainty in Mediterranean regions.GeoBioTec - Geobiociências, Geoengenharias e GeotecnologiasRUNPatanita, ManuelTomaz, AlexandraRamos, TiagoOliveira, PatríciaBoteta, LuísDôres, José2020-08-25T22:48:53Z2019-10-192019-10-19T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/102891eng2223-7747PURE: 18998588https://doi.org/10.3390/plants8100429info: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:RCAAP2024-03-11T04:48:28Zoai:run.unl.pt:10362/102891Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:39:46.798259Repositório 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 regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal
title Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal
spellingShingle Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal
Patanita, Manuel
Climate change
Climate uncertainty
Enhanced efficiency fertilizers
Grain yield
Irrigation
Nitrogen fertilization
Wheat
Ecology, Evolution, Behavior and Systematics
Ecology
Plant Science
SDG 2 - Zero Hunger
SDG 13 - Climate Action
title_short Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal
title_full Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal
title_fullStr Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal
title_full_unstemmed Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal
title_sort Water regime and nitrogen management to cope with wheat yield variability under the mediterranean conditions of Southern Portugal
author Patanita, Manuel
author_facet Patanita, Manuel
Tomaz, Alexandra
Ramos, Tiago
Oliveira, Patrícia
Boteta, Luís
Dôres, José
author_role author
author2 Tomaz, Alexandra
Ramos, Tiago
Oliveira, Patrícia
Boteta, Luís
Dôres, José
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv GeoBioTec - Geobiociências, Geoengenharias e Geotecnologias
RUN
dc.contributor.author.fl_str_mv Patanita, Manuel
Tomaz, Alexandra
Ramos, Tiago
Oliveira, Patrícia
Boteta, Luís
Dôres, José
dc.subject.por.fl_str_mv Climate change
Climate uncertainty
Enhanced efficiency fertilizers
Grain yield
Irrigation
Nitrogen fertilization
Wheat
Ecology, Evolution, Behavior and Systematics
Ecology
Plant Science
SDG 2 - Zero Hunger
SDG 13 - Climate Action
topic Climate change
Climate uncertainty
Enhanced efficiency fertilizers
Grain yield
Irrigation
Nitrogen fertilization
Wheat
Ecology, Evolution, Behavior and Systematics
Ecology
Plant Science
SDG 2 - Zero Hunger
SDG 13 - Climate Action
description POCI-01-0145-FEDER-023262 LISBOA-01-0145-FEDER-023262 SAICT-POL/23262/2016
publishDate 2019
dc.date.none.fl_str_mv 2019-10-19
2019-10-19T00:00:00Z
2020-08-25T22:48:53Z
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/10362/102891
url http://hdl.handle.net/10362/102891
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2223-7747
PURE: 18998588
https://doi.org/10.3390/plants8100429
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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
repository.mail.fl_str_mv
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