Efeito de irrigação e adubação nitrogenada nas characterísticas agronômicas de milho doce

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dc.contributor.authorde Souza, Epitácio José [UNESP]
dc.contributor.authorda Cunha, Fernando França
dc.contributor.authorMagalhães, Fernando Fagner
dc.contributor.authorda Silva, Thiago Ramos
dc.contributor.authordos Santos, Osvaldir Feliciano
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)
dc.date.accessioned2018-12-11T16:39:12Z
dc.date.available2018-12-11T16:39:12Z
dc.date.issued2015-01-01
dc.description.abstractIrrigation and nitrogen fertilization are management practices that have positive results for the corn crop. This study aimed at evaluating the effect of nitrogen fertilization and irrigation on agronomic traits of sweet corn. Two experiments were carried out in two crop seasons (winter/spring and summer/autumn), in a split-plot design, with the main plots consisting of four irrigation levels (50 %, 75 %, 100 % and 125 % of the crop evapotranspiration - ETc) and subplots consisting of four nitrogen doses (0 kg ha<sup>-1</sup>, 100 kg ha<sup>-1</sup>, 200 kg ha<sup>-1</sup> and 300 kg ha<sup>-1</sup>), applied at the V3 and V8 stages, via urea, in a randomized blocks design experiment, with four replications. Leaf nitrogen content, root depth, plant height, stem diameter, ear yield and water use efficiency were evaluated. In the winter/spring season, nitrogen fertilization did not affect yield, while in the summer/autumn season the dose that maximized yield was 300 kg ha<sup>-1</sup>. Sweet corn showed better results when irrigated with replacements of 50 % and 125 % of ETc, respectively in the summer/autumn and winter/spring seasons.en
dc.description.affiliationUniversidade Estadual Paulista ‘Júlio de Mesquita Filho’ (Unesp), Departamento de Fitossanidade, Engenharia Rural e Solos
dc.description.affiliationUniversidade Federal de Viçosa (UFV), Departamento de Engenharia Agrícola
dc.description.affiliationUniversidade Federal de Mato Grosso do Sul (UFMS)
dc.description.affiliationUnespUniversidade Estadual Paulista ‘Júlio de Mesquita Filho’ (Unesp), Departamento de Fitossanidade, Engenharia Rural e Solos
dc.format.extent282-290
dc.identifierhttp://dx.doi.org/10.1590/1983-40632015v4533628
dc.identifier.citationPesquisa Agropecuaria Tropical, v. 45, n. 3, p. 282-290, 2015.
dc.identifier.doi10.1590/1983-40632015v4533628
dc.identifier.fileS1983-40632015000300005.pdf
dc.identifier.issn1983-4063
dc.identifier.issn1517-6398
dc.identifier.scieloS1983-40632015000300005
dc.identifier.scopus2-s2.0-84941361871
dc.identifier.urihttp://hdl.handle.net/11449/168006
dc.language.isoeng
dc.relation.ispartofPesquisa Agropecuaria Tropical
dc.relation.ispartofsjr0,346
dc.relation.ispartofsjr0,346
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectDrip irrigation
dc.subjectSpecialty corn
dc.subjectWater use efficiency
dc.subjectZea mays var. saccharata sturt
dc.titleEfeito de irrigação e adubação nitrogenada nas characterísticas agronômicas de milho docept
dc.title.alternativeEffect of irrigation and nitrogen fertilization on agronomic traits of sweet cornen
dc.typeArtigo

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