Doses de potássio em cobertura na cultura da abóbora

Detalhes bibliográficos
Autor(a) principal: Sampaio Araújo, Humberto [UNESP]
Data de Publicação: 2012
Outros Autores: de Quadros, Bárbara Rodrigues [UNESP], Inácio Cardoso, Antonio Ismael [UNESP], Corrêa, Carla Verônica [UNESP]
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S1983-40632012000400004
http://hdl.handle.net/11449/73625
Resumo: Although there are recommendations for the fertilization of commercial squash crops, studies which connect the effect of topdressing potassium fertilization and yield are still rare. Thus, this study aimed at evaluating topdressing potassium doses on squash (Mirian hybrid) yield, in an experimental farm of the Universidade Estadual Paulista Júlio de Mesquita Filho, in São Manuel, São Paulo State, Brazil. The experimental design was randomized blocks, with five treatments (0.0 kg ha-1, 50.0 kg ha-1, 100.0 kg ha-1, 200.0 kg ha-1 and 400.0 kg ha-1 of K2O) and six replications. Plant growth parameters, yield and fruit quality were evaluated. After harvesting, plant (leaves + stem) and soil macronutrients were submitted to chemical analysis and data to variance and regression analysis. It was concluded that the highest yield resulted from the topdressing dose of 199.0 kg ha-1 of K2O. A reduction in calcium and magnesium contents in the plant canopy and a higher K+ content in the soil were observed for increasing K2O levels.
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spelling Doses de potássio em cobertura na cultura da abóboraTopdressing potassium doses on squash cropCucurbita moschataFruit yieldPlant nutritionAlthough there are recommendations for the fertilization of commercial squash crops, studies which connect the effect of topdressing potassium fertilization and yield are still rare. Thus, this study aimed at evaluating topdressing potassium doses on squash (Mirian hybrid) yield, in an experimental farm of the Universidade Estadual Paulista Júlio de Mesquita Filho, in São Manuel, São Paulo State, Brazil. The experimental design was randomized blocks, with five treatments (0.0 kg ha-1, 50.0 kg ha-1, 100.0 kg ha-1, 200.0 kg ha-1 and 400.0 kg ha-1 of K2O) and six replications. Plant growth parameters, yield and fruit quality were evaluated. After harvesting, plant (leaves + stem) and soil macronutrients were submitted to chemical analysis and data to variance and regression analysis. It was concluded that the highest yield resulted from the topdressing dose of 199.0 kg ha-1 of K2O. A reduction in calcium and magnesium contents in the plant canopy and a higher K+ content in the soil were observed for increasing K2O levels.Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp) Departamento de Produção Vegetal, Botucatu, SPUniversidade Estadual Paulista Júlio de Mesquita Filho (Unesp) Departamento de Produção Vegetal, Botucatu, SPUniversidade Estadual Paulista (Unesp)Sampaio Araújo, Humberto [UNESP]de Quadros, Bárbara Rodrigues [UNESP]Inácio Cardoso, Antonio Ismael [UNESP]Corrêa, Carla Verônica [UNESP]2014-05-27T11:27:05Z2014-05-27T11:27:05Z2012-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article469-475application/pdfhttp://dx.doi.org/10.1590/S1983-40632012000400004Pesquisa Agropecuaria Tropical, v. 42, n. 4, p. 469-475, 2012.1517-63981983-4063http://hdl.handle.net/11449/7362510.1590/S1983-40632012000400004S1983-406320120004000042-s2.0-848773210092-s2.0-84877321009.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporPesquisa Agropecuária Tropical0,3460,346info:eu-repo/semantics/openAccess2024-04-30T18:06:52Zoai:repositorio.unesp.br:11449/73625Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T18:06:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Doses de potássio em cobertura na cultura da abóbora
Topdressing potassium doses on squash crop
title Doses de potássio em cobertura na cultura da abóbora
spellingShingle Doses de potássio em cobertura na cultura da abóbora
Sampaio Araújo, Humberto [UNESP]
Cucurbita moschata
Fruit yield
Plant nutrition
title_short Doses de potássio em cobertura na cultura da abóbora
title_full Doses de potássio em cobertura na cultura da abóbora
title_fullStr Doses de potássio em cobertura na cultura da abóbora
title_full_unstemmed Doses de potássio em cobertura na cultura da abóbora
title_sort Doses de potássio em cobertura na cultura da abóbora
author Sampaio Araújo, Humberto [UNESP]
author_facet Sampaio Araújo, Humberto [UNESP]
de Quadros, Bárbara Rodrigues [UNESP]
Inácio Cardoso, Antonio Ismael [UNESP]
Corrêa, Carla Verônica [UNESP]
author_role author
author2 de Quadros, Bárbara Rodrigues [UNESP]
Inácio Cardoso, Antonio Ismael [UNESP]
Corrêa, Carla Verônica [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Sampaio Araújo, Humberto [UNESP]
de Quadros, Bárbara Rodrigues [UNESP]
Inácio Cardoso, Antonio Ismael [UNESP]
Corrêa, Carla Verônica [UNESP]
dc.subject.por.fl_str_mv Cucurbita moschata
Fruit yield
Plant nutrition
topic Cucurbita moschata
Fruit yield
Plant nutrition
description Although there are recommendations for the fertilization of commercial squash crops, studies which connect the effect of topdressing potassium fertilization and yield are still rare. Thus, this study aimed at evaluating topdressing potassium doses on squash (Mirian hybrid) yield, in an experimental farm of the Universidade Estadual Paulista Júlio de Mesquita Filho, in São Manuel, São Paulo State, Brazil. The experimental design was randomized blocks, with five treatments (0.0 kg ha-1, 50.0 kg ha-1, 100.0 kg ha-1, 200.0 kg ha-1 and 400.0 kg ha-1 of K2O) and six replications. Plant growth parameters, yield and fruit quality were evaluated. After harvesting, plant (leaves + stem) and soil macronutrients were submitted to chemical analysis and data to variance and regression analysis. It was concluded that the highest yield resulted from the topdressing dose of 199.0 kg ha-1 of K2O. A reduction in calcium and magnesium contents in the plant canopy and a higher K+ content in the soil were observed for increasing K2O levels.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-01
2014-05-27T11:27:05Z
2014-05-27T11:27:05Z
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://dx.doi.org/10.1590/S1983-40632012000400004
Pesquisa Agropecuaria Tropical, v. 42, n. 4, p. 469-475, 2012.
1517-6398
1983-4063
http://hdl.handle.net/11449/73625
10.1590/S1983-40632012000400004
S1983-40632012000400004
2-s2.0-84877321009
2-s2.0-84877321009.pdf
url http://dx.doi.org/10.1590/S1983-40632012000400004
http://hdl.handle.net/11449/73625
identifier_str_mv Pesquisa Agropecuaria Tropical, v. 42, n. 4, p. 469-475, 2012.
1517-6398
1983-4063
10.1590/S1983-40632012000400004
S1983-40632012000400004
2-s2.0-84877321009
2-s2.0-84877321009.pdf
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv Pesquisa Agropecuária Tropical
0,346
0,346
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 469-475
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
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