Evapotranspiration and crop coefficient of adult coffee trees

Detalhes bibliográficos
Autor(a) principal: Lena, Bruno Patias
Data de Publicação: 2011
Outros Autores: Flumignan, Danilton Luiz, Faria, Rogério Teixeira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/10178
Resumo: The objective of this work was to determine the evapotranspiration (ET) of adult coffee trees irrigated by sprinkler and drip and under no irrigation, as well as the crop coefficient (Kc) under both water regimes. The experiment was performed in Londrina, PR, Brazil, with the coffee cultivar Iapar 59, from September 2006 to August 2008, with five and six-year-old plants. Evapotranspiration was measured by five weighting lysimeters, two of which were under sprinkler irrigation, one under drip system and two others without irrigation. Irrigation was applied twice a week to maintain soil moisture near field capacity. The crop coefficient was determined by the ratio between ET of the irrigated plants and the reference crop evapotranspiration (ETo). A higher ET mean was found for coffee plants under sprinkler irrigation (3.2 mm day-1), in comparison to the ones under the other treatments, which showed similar means (2.8 mm day-1). Kc values followed the same trend of ET, due to the ET and ETo ratios, with a higher mean for sprinkler irrigation (1), followed by drip irrigation (0.88). 
id EMBRAPA-4_025213a2fbe73d9013f98962966ce4f3
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/10178
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Evapotranspiration and crop coefficient of adult coffee treesEvapotranspiração e coeficiente de cultivo de cafeeiros adultosCoffea arabica; water demand; lysimeters; irrigationCoffea arabica; demanda hídrica; lisímetros; irrigaçãoThe objective of this work was to determine the evapotranspiration (ET) of adult coffee trees irrigated by sprinkler and drip and under no irrigation, as well as the crop coefficient (Kc) under both water regimes. The experiment was performed in Londrina, PR, Brazil, with the coffee cultivar Iapar 59, from September 2006 to August 2008, with five and six-year-old plants. Evapotranspiration was measured by five weighting lysimeters, two of which were under sprinkler irrigation, one under drip system and two others without irrigation. Irrigation was applied twice a week to maintain soil moisture near field capacity. The crop coefficient was determined by the ratio between ET of the irrigated plants and the reference crop evapotranspiration (ETo). A higher ET mean was found for coffee plants under sprinkler irrigation (3.2 mm day-1), in comparison to the ones under the other treatments, which showed similar means (2.8 mm day-1). Kc values followed the same trend of ET, due to the ET and ETo ratios, with a higher mean for sprinkler irrigation (1), followed by drip irrigation (0.88). O objetivo deste trabalho foi determinar a evapotranspiração (ET) de cafeeiros adultos, irrigados por aspersão e gotejamento, e não irrigados, bem como os coeficientes de cultivo (Kc) de cafeeiros sob os dois regimes hídricos. O experimento foi realizado em Londrina, PR, com cafeeiros da cultivar Iapar 59, com cinco e seis anos de idade, de setembro de 2006 a agosto de 2008. A evapotranspiração foi medida por cinco lisímetros de pesagem, dos quais dois irrigados por aspersão, um por gotejamento e os outros dois sem irrigação. A irrigação foi aplicada, em média, duas vezes por semana, para manter o solo com umidade próxima à de capacidade de campo. O coeficiente de cultivo foi determinado pela razão entre a ET das plantas dos tratamentos irrigados e a evapotranspiração de referência (ETo). Os cafeeiros adultos apresentaram valor médio de ET mais elevado no tratamento irrigado por aspersão (3,2 mm dia-1), em comparação aos de outros tratamentos, que apresentaram médias equivalentes entre si (2,8 mm dia-1). A mesma tendência foi observada para Kc, em razão da relação ET e ETo, com valor médio maior para o tratamento irrigado por aspersão (1) e menor para o gotejamento (0,88).Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCNPq, CapesLena, Bruno PatiasFlumignan, Danilton LuizFaria, Rogério Teixeira2011-10-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/10178Pesquisa Agropecuaria Brasileira; v.46, n.8, ago. 2011; 905-911Pesquisa Agropecuária Brasileira; v.46, n.8, ago. 2011; 905-9111678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/10178/6499https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10178/5505info:eu-repo/semantics/openAccess2014-06-05T18:13:57Zoai:ojs.seer.sct.embrapa.br:article/10178Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-06-05T18:13:57Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Evapotranspiration and crop coefficient of adult coffee trees
Evapotranspiração e coeficiente de cultivo de cafeeiros adultos
title Evapotranspiration and crop coefficient of adult coffee trees
spellingShingle Evapotranspiration and crop coefficient of adult coffee trees
Lena, Bruno Patias
Coffea arabica; water demand; lysimeters; irrigation
Coffea arabica; demanda hídrica; lisímetros; irrigação
title_short Evapotranspiration and crop coefficient of adult coffee trees
title_full Evapotranspiration and crop coefficient of adult coffee trees
title_fullStr Evapotranspiration and crop coefficient of adult coffee trees
title_full_unstemmed Evapotranspiration and crop coefficient of adult coffee trees
title_sort Evapotranspiration and crop coefficient of adult coffee trees
author Lena, Bruno Patias
author_facet Lena, Bruno Patias
Flumignan, Danilton Luiz
Faria, Rogério Teixeira
author_role author
author2 Flumignan, Danilton Luiz
Faria, Rogério Teixeira
author2_role author
author
dc.contributor.none.fl_str_mv
CNPq, Capes
dc.contributor.author.fl_str_mv Lena, Bruno Patias
Flumignan, Danilton Luiz
Faria, Rogério Teixeira
dc.subject.por.fl_str_mv Coffea arabica; water demand; lysimeters; irrigation
Coffea arabica; demanda hídrica; lisímetros; irrigação
topic Coffea arabica; water demand; lysimeters; irrigation
Coffea arabica; demanda hídrica; lisímetros; irrigação
description The objective of this work was to determine the evapotranspiration (ET) of adult coffee trees irrigated by sprinkler and drip and under no irrigation, as well as the crop coefficient (Kc) under both water regimes. The experiment was performed in Londrina, PR, Brazil, with the coffee cultivar Iapar 59, from September 2006 to August 2008, with five and six-year-old plants. Evapotranspiration was measured by five weighting lysimeters, two of which were under sprinkler irrigation, one under drip system and two others without irrigation. Irrigation was applied twice a week to maintain soil moisture near field capacity. The crop coefficient was determined by the ratio between ET of the irrigated plants and the reference crop evapotranspiration (ETo). A higher ET mean was found for coffee plants under sprinkler irrigation (3.2 mm day-1), in comparison to the ones under the other treatments, which showed similar means (2.8 mm day-1). Kc values followed the same trend of ET, due to the ET and ETo ratios, with a higher mean for sprinkler irrigation (1), followed by drip irrigation (0.88). 
publishDate 2011
dc.date.none.fl_str_mv 2011-10-26
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/10178
url https://seer.sct.embrapa.br/index.php/pab/article/view/10178
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/10178/6499
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10178/5505
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.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.46, n.8, ago. 2011; 905-911
Pesquisa Agropecuária Brasileira; v.46, n.8, ago. 2011; 905-911
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
_version_ 1793416706122579968

Registros relacionados