Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5039/agraria.v9i2a3708 http://hdl.handle.net/11449/227836 |
Resumo: | The objective of this study was to evaluate the effect of nitrogen doses using urea or coated urea by polymers, in contents of nitrogen and chlorophyll in leaf, agronomic characteristics and yield of corn under no-tillage system, cultivated in Savanna region. The experiment was conducted during the growing season of 2008/09 and 2009/10, in Selvíria -MS in an Oxisol with loamy texture. A randomized block design with four replications was used, disposed in a factorial scheme 4 × 2, being: four N doses (0, 40, 80 and 120 kg ha-1) applied in topdressing, as urea in two forms (conventional and coated by polymers). The polymer that covers the urea is not efficient under the soil and climatic conditions of low altitude Savannah with the use of irrigation, because it provided similar results to conventional urea for agronomic characteristics and grain yield of corn. The increase of N dose influence positively the N and chlorophyll leaf contents, plant height, number of grains per line and mass of 100 grains. The topdressing application of 88 kg ha-1 of N provides maximum grain yield of corn, regardless of the form of urea used. |
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Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura diretaTopdressing application of coated urea in irrigated corn under no-tillage systemCoated fertilizerGradual release fertilizerNitrogenNitrogen fertilizationZea mays L.The objective of this study was to evaluate the effect of nitrogen doses using urea or coated urea by polymers, in contents of nitrogen and chlorophyll in leaf, agronomic characteristics and yield of corn under no-tillage system, cultivated in Savanna region. The experiment was conducted during the growing season of 2008/09 and 2009/10, in Selvíria -MS in an Oxisol with loamy texture. A randomized block design with four replications was used, disposed in a factorial scheme 4 × 2, being: four N doses (0, 40, 80 and 120 kg ha-1) applied in topdressing, as urea in two forms (conventional and coated by polymers). The polymer that covers the urea is not efficient under the soil and climatic conditions of low altitude Savannah with the use of irrigation, because it provided similar results to conventional urea for agronomic characteristics and grain yield of corn. The increase of N dose influence positively the N and chlorophyll leaf contents, plant height, number of grains per line and mass of 100 grains. The topdressing application of 88 kg ha-1 of N provides maximum grain yield of corn, regardless of the form of urea used.Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia de Ilha Solteira, Departamento de Fitossanidade, Engenharia Rural e Solos, Av. Brasil 56, Centro, CEP 15385-000, Ilha Solteira-SPUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Medicina Veterinária e Zootecnia de Botucatu, Distrito de Rubião Júnior, s/n, CEP 18618-000, Botucatu-SPBP Biocombustiveis S.A., Rua Principal, Zona Rural, CEP 38300-898, Ituiutaba-MGUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia de Ilha Solteira, Departamento de Fitossanidade, Engenharia Rural e Solos, Av. Brasil 56, Centro, CEP 15385-000, Ilha Solteira-SPUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Medicina Veterinária e Zootecnia de Botucatu, Distrito de Rubião Júnior, s/n, CEP 18618-000, Botucatu-SPUniversidade Estadual Paulista (UNESP)BP Biocombustiveis S.A.Maestrelo, Paulo R. [UNESP]Buzetti, Salatiér [UNESP]Teixeira Filho, Marcelo C.M. [UNESP]De Garcia, Cássia M.P. [UNESP]De Rodrigues, Mateus A.C. [UNESP]Lino, Ana C.M.Andreotti, Marcelo [UNESP]2022-04-29T07:20:24Z2022-04-29T07:20:24Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article192-199http://dx.doi.org/10.5039/agraria.v9i2a3708Revista Brasileirade Ciencias Agrarias, v. 9, n. 2, p. 192-199, 2014.1981-09971981-1160http://hdl.handle.net/11449/22783610.5039/agraria.v9i2a37082-s2.0-84905187095Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileirade Ciencias Agrariasinfo:eu-repo/semantics/openAccess2022-04-29T07:20:24Zoai:repositorio.unesp.br:11449/227836Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T07:20:24Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta Topdressing application of coated urea in irrigated corn under no-tillage system |
title |
Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta |
spellingShingle |
Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta Maestrelo, Paulo R. [UNESP] Coated fertilizer Gradual release fertilizer Nitrogen Nitrogen fertilization Zea mays L. |
title_short |
Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta |
title_full |
Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta |
title_fullStr |
Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta |
title_full_unstemmed |
Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta |
title_sort |
Aplicação de ureia revestida em cobertura no milho irrigado sob sistema de semeadura direta |
author |
Maestrelo, Paulo R. [UNESP] |
author_facet |
Maestrelo, Paulo R. [UNESP] Buzetti, Salatiér [UNESP] Teixeira Filho, Marcelo C.M. [UNESP] De Garcia, Cássia M.P. [UNESP] De Rodrigues, Mateus A.C. [UNESP] Lino, Ana C.M. Andreotti, Marcelo [UNESP] |
author_role |
author |
author2 |
Buzetti, Salatiér [UNESP] Teixeira Filho, Marcelo C.M. [UNESP] De Garcia, Cássia M.P. [UNESP] De Rodrigues, Mateus A.C. [UNESP] Lino, Ana C.M. Andreotti, Marcelo [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) BP Biocombustiveis S.A. |
dc.contributor.author.fl_str_mv |
Maestrelo, Paulo R. [UNESP] Buzetti, Salatiér [UNESP] Teixeira Filho, Marcelo C.M. [UNESP] De Garcia, Cássia M.P. [UNESP] De Rodrigues, Mateus A.C. [UNESP] Lino, Ana C.M. Andreotti, Marcelo [UNESP] |
dc.subject.por.fl_str_mv |
Coated fertilizer Gradual release fertilizer Nitrogen Nitrogen fertilization Zea mays L. |
topic |
Coated fertilizer Gradual release fertilizer Nitrogen Nitrogen fertilization Zea mays L. |
description |
The objective of this study was to evaluate the effect of nitrogen doses using urea or coated urea by polymers, in contents of nitrogen and chlorophyll in leaf, agronomic characteristics and yield of corn under no-tillage system, cultivated in Savanna region. The experiment was conducted during the growing season of 2008/09 and 2009/10, in Selvíria -MS in an Oxisol with loamy texture. A randomized block design with four replications was used, disposed in a factorial scheme 4 × 2, being: four N doses (0, 40, 80 and 120 kg ha-1) applied in topdressing, as urea in two forms (conventional and coated by polymers). The polymer that covers the urea is not efficient under the soil and climatic conditions of low altitude Savannah with the use of irrigation, because it provided similar results to conventional urea for agronomic characteristics and grain yield of corn. The increase of N dose influence positively the N and chlorophyll leaf contents, plant height, number of grains per line and mass of 100 grains. The topdressing application of 88 kg ha-1 of N provides maximum grain yield of corn, regardless of the form of urea used. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 2022-04-29T07:20:24Z 2022-04-29T07:20:24Z |
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/10.5039/agraria.v9i2a3708 Revista Brasileirade Ciencias Agrarias, v. 9, n. 2, p. 192-199, 2014. 1981-0997 1981-1160 http://hdl.handle.net/11449/227836 10.5039/agraria.v9i2a3708 2-s2.0-84905187095 |
url |
http://dx.doi.org/10.5039/agraria.v9i2a3708 http://hdl.handle.net/11449/227836 |
identifier_str_mv |
Revista Brasileirade Ciencias Agrarias, v. 9, n. 2, p. 192-199, 2014. 1981-0997 1981-1160 10.5039/agraria.v9i2a3708 2-s2.0-84905187095 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileirade Ciencias Agrarias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
192-199 |
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_ |
1797790402516877312 |