Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://irriga.fca.unesp.br/index.php/irriga/article/view/617 http://hdl.handle.net/11449/76861 |
Resumo: | The aim of this work was to determine crop coefficients (Kc) of drip irrigated watermelon in the climatic and growing conditions of the Gurgueia Vale, State of Piaui, Brazil, located at 8 ° 26' S, 43 ° 47' W and altitude of 251 m. The reference evapotranspiration (ET0) was determined by the sum of hourly values of ET0 obtained by the Penman-Monteith method parameterized by FAO with climatic data obtained from an automatic weather station. The daily crop evapotranspiration (ETc) was measured by three weighing lysimeters of load cells. Aiming high fruit yield in this region, we recommend that the following local values of Kc and Kcb be used for planning and management of irrigation, respectively: initial stage (crop establishment) - 0.34 and 0.24; intermediate stage (growth and fruit maturation) - 1.16 and 1.10; end stage (harvest) - 0.93 and 0.86. These Kc values of initial and intermediate phases are statistically higher than the values of Kc and Kcb already adjusted according to the methodology presented in the FAO Irrigation and Drainage Paper 56. The values of Kc and Kcb at the end phase are not statistically different from the FAO values. |
id |
UNSP_d73cf577f2bbbedd51d26e25090d7d63 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/76861 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PICrop coefficients of drip irrigated watermelon in the Gurgueia Vale, Piaui - BrazilBasal KcCitrullus lanatusEvapotranspirationLysimetersSemi-aridThe aim of this work was to determine crop coefficients (Kc) of drip irrigated watermelon in the climatic and growing conditions of the Gurgueia Vale, State of Piaui, Brazil, located at 8 ° 26' S, 43 ° 47' W and altitude of 251 m. The reference evapotranspiration (ET0) was determined by the sum of hourly values of ET0 obtained by the Penman-Monteith method parameterized by FAO with climatic data obtained from an automatic weather station. The daily crop evapotranspiration (ETc) was measured by three weighing lysimeters of load cells. Aiming high fruit yield in this region, we recommend that the following local values of Kc and Kcb be used for planning and management of irrigation, respectively: initial stage (crop establishment) - 0.34 and 0.24; intermediate stage (growth and fruit maturation) - 1.16 and 1.10; end stage (harvest) - 0.93 and 0.86. These Kc values of initial and intermediate phases are statistically higher than the values of Kc and Kcb already adjusted according to the methodology presented in the FAO Irrigation and Drainage Paper 56. The values of Kc and Kcb at the end phase are not statistically different from the FAO values.A obtenção de valores locais dos coeficientes de cultura é importante para a estimativa mais acurada das necessidades de irrigação. Com esse objetivo foram determinados os coeficientes de cultura locais - simples (Kc) e basais (Kcb) - da melancieira irrigada por gotejamento no Vale do Gurgueia - PI. A evapotranspiração de referência diária (ET0) foi determinada pelo somatório dos valores horários de ET0aplicando-se o método de Penman-Monteith parametrizado pela FAO com dados climáticos obtidos em estação automática instalada na área. A evapotranspiração diária da cultura foi medida em três lisímetros com células de carga. Visando alta produtividade de frutos nesta região, recomendamos que sejam utilizados para o planejamento e manejo da irrigação os seguintes valores locais de Kc e de Kcb, respectivamente: fase inicial (estabelecimento da cultura) - 0,34 e 0,24; fase intermediária (crescimento e maturação dos frutos) - 1,16 e 1,10; fase final (colheita) –0,93 e 0,86.Esses valores das fases inicial e intermediária são superiores e os da fase final não diferem dos de Kc e de Kcb já ajustados para as variáveis climáticas locais,altura média da cultura e para a duração da fase final, conforme metodologia da FAO apresentada no Boletim 56 de Irrigação e Drenagem.Colegio Agricola de Bom Jesus Universidade Federal do Piaui, Rodovia Municipal Bom Jesus-Viana, 64900-000, Bom Jesus - PIDepartamento de Engenharia Rural Universidade Estadual Paulista, Via de acesso Prof. Paulo Donato Castellane, s/n, 14884-900, Jaboticabal - SPEmbrapa Meio-Norte, Av. Duque de Caxias 5650, CEP: 64006-220, Teresina-PIDepartamento de Engenharia Rural Universidade Estadual Paulista, Via de acesso Prof. Paulo Donato Castellane, s/n, 14884-900, Jaboticabal - SPUniversidade Federal do Piauí (UFPI)Universidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Ferreira, José Orlando PiauilinoPavani, Luiz Carlos [UNESP]Bastos, Edson Alves2014-05-27T11:30:51Z2014-05-27T11:30:51Z2013-10-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article509-521application/pdfhttp://irriga.fca.unesp.br/index.php/irriga/article/view/617Irriga, v. 18, n. 3, p. 509-521, 2013.1413-78951808-37651808-8546http://hdl.handle.net/11449/768612-s2.0-848852227792-s2.0-84885222779.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporIrriga0,283info:eu-repo/semantics/openAccess2024-01-17T06:22:38Zoai:repositorio.unesp.br:11449/76861Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-17T06:22:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI Crop coefficients of drip irrigated watermelon in the Gurgueia Vale, Piaui - Brazil |
title |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI |
spellingShingle |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI Ferreira, José Orlando Piauilino Basal Kc Citrullus lanatus Evapotranspiration Lysimeters Semi-arid |
title_short |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI |
title_full |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI |
title_fullStr |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI |
title_full_unstemmed |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI |
title_sort |
Coeficientes de cultura para a melancieira irrigada por gotejamento no Vale do Gurgueia - PI |
author |
Ferreira, José Orlando Piauilino |
author_facet |
Ferreira, José Orlando Piauilino Pavani, Luiz Carlos [UNESP] Bastos, Edson Alves |
author_role |
author |
author2 |
Pavani, Luiz Carlos [UNESP] Bastos, Edson Alves |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Piauí (UFPI) Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Ferreira, José Orlando Piauilino Pavani, Luiz Carlos [UNESP] Bastos, Edson Alves |
dc.subject.por.fl_str_mv |
Basal Kc Citrullus lanatus Evapotranspiration Lysimeters Semi-arid |
topic |
Basal Kc Citrullus lanatus Evapotranspiration Lysimeters Semi-arid |
description |
The aim of this work was to determine crop coefficients (Kc) of drip irrigated watermelon in the climatic and growing conditions of the Gurgueia Vale, State of Piaui, Brazil, located at 8 ° 26' S, 43 ° 47' W and altitude of 251 m. The reference evapotranspiration (ET0) was determined by the sum of hourly values of ET0 obtained by the Penman-Monteith method parameterized by FAO with climatic data obtained from an automatic weather station. The daily crop evapotranspiration (ETc) was measured by three weighing lysimeters of load cells. Aiming high fruit yield in this region, we recommend that the following local values of Kc and Kcb be used for planning and management of irrigation, respectively: initial stage (crop establishment) - 0.34 and 0.24; intermediate stage (growth and fruit maturation) - 1.16 and 1.10; end stage (harvest) - 0.93 and 0.86. These Kc values of initial and intermediate phases are statistically higher than the values of Kc and Kcb already adjusted according to the methodology presented in the FAO Irrigation and Drainage Paper 56. The values of Kc and Kcb at the end phase are not statistically different from the FAO values. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-10-15 2014-05-27T11:30:51Z 2014-05-27T11:30:51Z |
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://irriga.fca.unesp.br/index.php/irriga/article/view/617 Irriga, v. 18, n. 3, p. 509-521, 2013. 1413-7895 1808-3765 1808-8546 http://hdl.handle.net/11449/76861 2-s2.0-84885222779 2-s2.0-84885222779.pdf |
url |
http://irriga.fca.unesp.br/index.php/irriga/article/view/617 http://hdl.handle.net/11449/76861 |
identifier_str_mv |
Irriga, v. 18, n. 3, p. 509-521, 2013. 1413-7895 1808-3765 1808-8546 2-s2.0-84885222779 2-s2.0-84885222779.pdf |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
Irriga 0,283 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
509-521 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965641428434944 |