Agronomic performance and severity of common rust in maize under different nitrogen sources

Detalhes bibliográficos
Autor(a) principal: Pereira, Hélcio Duarte
Data de Publicação: 2019
Outros Autores: Von Pinho, Renzo Garcia, Fiorini, Ivan Vilela Andrade, Resende, Ewerton Lélys, Resende, Felipe Ribeiro, Pires, Luiz Paulo Miranda
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/43122
Resumo: Nitrogen is the most required and complex management element in maize crop, promoting the highest responses in crop yield. The objective of this work was to verify the effect of different N sources on topdressing in minimum tillage and conventional tillage systems on the agronomic performance of the Pioneer 32R22YHR single cross and on the severity of common rust disease. Two experiments were carried out in a randomized block design (DBC) in the 2013/14 crop in minimum tillage and conventional tillage systems. The treatments were: control without nitrogen, ammonium sulfate, urea, ammonium nitrate, a physical mixture of nitrate (70%) and ammonium sulfate (30%) and a chemical mixture of these same sources in the same proportion just explained. Nitrogen sources had no significant effect on plant height, ear insertion height, ear prolificacy, grain yield and leaf severity of common rust, regardless of the sowing system. Under conventional tillage, the plants presented higher plant height, ear insertion and grain yield. There was no effect of sowing systems on prolificacy. With the exception of nitrogen free treatment, for all others, the severity of common rust was higher in minimum tillage system.
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spelling Agronomic performance and severity of common rust in maize under different nitrogen sourcesDesempenho agronômico e severidade de ferrugem comum em milho sob diferentes fontes de nitrogênioNo-tillZea maysPuccinia sorghiNitrateAmmoniumPlantio diretoMilho - Doenças e pragasFerrugem comumNitratoAmônioNitrogen is the most required and complex management element in maize crop, promoting the highest responses in crop yield. The objective of this work was to verify the effect of different N sources on topdressing in minimum tillage and conventional tillage systems on the agronomic performance of the Pioneer 32R22YHR single cross and on the severity of common rust disease. Two experiments were carried out in a randomized block design (DBC) in the 2013/14 crop in minimum tillage and conventional tillage systems. The treatments were: control without nitrogen, ammonium sulfate, urea, ammonium nitrate, a physical mixture of nitrate (70%) and ammonium sulfate (30%) and a chemical mixture of these same sources in the same proportion just explained. Nitrogen sources had no significant effect on plant height, ear insertion height, ear prolificacy, grain yield and leaf severity of common rust, regardless of the sowing system. Under conventional tillage, the plants presented higher plant height, ear insertion and grain yield. There was no effect of sowing systems on prolificacy. With the exception of nitrogen free treatment, for all others, the severity of common rust was higher in minimum tillage system.O nitrogênio é o elemento mais requerido e de manejo mais complexo na cultura do milho, promovendo as maiores respostas na produtividade da cultura. Objetivou-se com este trabalho verificar o efeito de diferentes fontes de N em cobertura, em sistemas de semeadura em cultivo mínimo e semeadura em preparo convencional do solo, no desempenho agronômico do híbrido simples de milho Pioneer 32R22YHR e na severidade da doença ferrugem comum. Foram implantados dois experimentos em delineamento blocos ao acaso (DBC) na safra 2013/14 em sistemas de semeadura em cultivo mínimo e semeadura em preparo convencional do solo. Os tratamentos foram: testemunha sem N, sulfato de amônio, ureia, nitrato de amônio, uma mistura física de nitrato (70%) e sulfato de amônio (30%) e uma mistura química dessas mesmas fontes na mesma proporção. As fontes de N não tiveram efeito significativo na altura de planta, altura de inserção de espiga, prolificidade, produtividade de grãos e severidade foliar de ferrugem comum, independentemente do sistema de semeadura. Sob sistema de semeadura em preparo convencional do solo, as plantas apresentaram maior altura de planta, inserção de espiga e produtividade de grãos. Não houve efeito dos sistemas de semeadura para a prolificidade. Com exceção do tratamento sem N, para todos os demais, a severidade de ferrugem comum foi maior em sistema de semeadura em cultivo mínimo.Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais - IFSULDEMINAS2020-09-17T20:01:36Z2020-09-17T20:01:36Z2019-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfPEREIRA, H. D. P. et al. Agronomic performance and severity of common rust in maize under different nitrogen sources. Revista Agrogeoambiental, Pouso Alegre, v. 11, n. 4, dez. 2019. DOI: http://dx.doi.org/10.18406/2316-1817v11n420191405.http://repositorio.ufla.br/jspui/handle/1/43122Revista Agrogeoambientalreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessPereira, Hélcio DuarteVon Pinho, Renzo GarciaFiorini, Ivan Vilela AndradeResende, Ewerton LélysResende, Felipe RibeiroPires, Luiz Paulo Mirandaeng2023-05-26T18:52:01Zoai:localhost:1/43122Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:52:01Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Agronomic performance and severity of common rust in maize under different nitrogen sources
Desempenho agronômico e severidade de ferrugem comum em milho sob diferentes fontes de nitrogênio
title Agronomic performance and severity of common rust in maize under different nitrogen sources
spellingShingle Agronomic performance and severity of common rust in maize under different nitrogen sources
Pereira, Hélcio Duarte
No-till
Zea mays
Puccinia sorghi
Nitrate
Ammonium
Plantio direto
Milho - Doenças e pragas
Ferrugem comum
Nitrato
Amônio
title_short Agronomic performance and severity of common rust in maize under different nitrogen sources
title_full Agronomic performance and severity of common rust in maize under different nitrogen sources
title_fullStr Agronomic performance and severity of common rust in maize under different nitrogen sources
title_full_unstemmed Agronomic performance and severity of common rust in maize under different nitrogen sources
title_sort Agronomic performance and severity of common rust in maize under different nitrogen sources
author Pereira, Hélcio Duarte
author_facet Pereira, Hélcio Duarte
Von Pinho, Renzo Garcia
Fiorini, Ivan Vilela Andrade
Resende, Ewerton Lélys
Resende, Felipe Ribeiro
Pires, Luiz Paulo Miranda
author_role author
author2 Von Pinho, Renzo Garcia
Fiorini, Ivan Vilela Andrade
Resende, Ewerton Lélys
Resende, Felipe Ribeiro
Pires, Luiz Paulo Miranda
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Pereira, Hélcio Duarte
Von Pinho, Renzo Garcia
Fiorini, Ivan Vilela Andrade
Resende, Ewerton Lélys
Resende, Felipe Ribeiro
Pires, Luiz Paulo Miranda
dc.subject.por.fl_str_mv No-till
Zea mays
Puccinia sorghi
Nitrate
Ammonium
Plantio direto
Milho - Doenças e pragas
Ferrugem comum
Nitrato
Amônio
topic No-till
Zea mays
Puccinia sorghi
Nitrate
Ammonium
Plantio direto
Milho - Doenças e pragas
Ferrugem comum
Nitrato
Amônio
description Nitrogen is the most required and complex management element in maize crop, promoting the highest responses in crop yield. The objective of this work was to verify the effect of different N sources on topdressing in minimum tillage and conventional tillage systems on the agronomic performance of the Pioneer 32R22YHR single cross and on the severity of common rust disease. Two experiments were carried out in a randomized block design (DBC) in the 2013/14 crop in minimum tillage and conventional tillage systems. The treatments were: control without nitrogen, ammonium sulfate, urea, ammonium nitrate, a physical mixture of nitrate (70%) and ammonium sulfate (30%) and a chemical mixture of these same sources in the same proportion just explained. Nitrogen sources had no significant effect on plant height, ear insertion height, ear prolificacy, grain yield and leaf severity of common rust, regardless of the sowing system. Under conventional tillage, the plants presented higher plant height, ear insertion and grain yield. There was no effect of sowing systems on prolificacy. With the exception of nitrogen free treatment, for all others, the severity of common rust was higher in minimum tillage system.
publishDate 2019
dc.date.none.fl_str_mv 2019-12
2020-09-17T20:01:36Z
2020-09-17T20:01:36Z
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 PEREIRA, H. D. P. et al. Agronomic performance and severity of common rust in maize under different nitrogen sources. Revista Agrogeoambiental, Pouso Alegre, v. 11, n. 4, dez. 2019. DOI: http://dx.doi.org/10.18406/2316-1817v11n420191405.
http://repositorio.ufla.br/jspui/handle/1/43122
identifier_str_mv PEREIRA, H. D. P. et al. Agronomic performance and severity of common rust in maize under different nitrogen sources. Revista Agrogeoambiental, Pouso Alegre, v. 11, n. 4, dez. 2019. DOI: http://dx.doi.org/10.18406/2316-1817v11n420191405.
url http://repositorio.ufla.br/jspui/handle/1/43122
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais - IFSULDEMINAS
publisher.none.fl_str_mv Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais - IFSULDEMINAS
dc.source.none.fl_str_mv Revista Agrogeoambiental
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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