AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER

Detalhes bibliográficos
Autor(a) principal: Oliveira, Regis de Paula
Data de Publicação: 2007
Outros Autores: França, Aldi Fernandes de Souza, Rodrigues Filho, Osvaldo, Oliveira, Euclides Reuter de, Rosa, Beneval, Soares, Tatiana Vieira, Mello, Susana Queiroz Santos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/2288
Resumo: The objective of this study was to evaluate characteristics of four forage sorghum cultivars at three levels of nitrogen fertilizer in an Oxisoil. A randomized complete block design in a 4x3 factorial scheme (CMSXS 762, BRS 610, BR 700 and BR 506 hybrid cultivars combined with 50 kg.ha-1, 75 kg.ha-1 and 100 kg.ha-1 nitrogen levels). A Tukey test was used for comparison of treatment means. The yields of natural matter, with general average 59.31 t.ha-1, were significantly different among sorghum cultivars; but there was no difference caused by nitrogen levels in this trait. The dry matter yield mean (15.17 t.ha-1) did not differ among cultivars or nitrogen levels. As opposed, dry matter and panicle and stalk contents in the natural matter were different among cultivars as well as among N levels. The plant height (with general average 2.39 m) and stalk dry matter means were different only among cultivars. BR 700 and CMSXS 762 cultivars showed the best panicle/stalk/leaf ratio and the largest panicle percentage. Increased amounts of nitrogen resulted in increased panicle and decreased stalk percentage. KEY-WORDS: Sorghum; nitrogen fertilization; agronomic valuation.
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spelling AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZERCARACTERÍSTICAS AGRONÔMICAS DE CULTIVARES DE SORGO (Sorghum bicolor (L.) Moench) SOB TRÊS DOSES DE NITROGÊNIOSorghumnitrogen fertilizationagronomic valuationSorgoadubação nitrogenadaavaliação agronômica The objective of this study was to evaluate characteristics of four forage sorghum cultivars at three levels of nitrogen fertilizer in an Oxisoil. A randomized complete block design in a 4x3 factorial scheme (CMSXS 762, BRS 610, BR 700 and BR 506 hybrid cultivars combined with 50 kg.ha-1, 75 kg.ha-1 and 100 kg.ha-1 nitrogen levels). A Tukey test was used for comparison of treatment means. The yields of natural matter, with general average 59.31 t.ha-1, were significantly different among sorghum cultivars; but there was no difference caused by nitrogen levels in this trait. The dry matter yield mean (15.17 t.ha-1) did not differ among cultivars or nitrogen levels. As opposed, dry matter and panicle and stalk contents in the natural matter were different among cultivars as well as among N levels. The plant height (with general average 2.39 m) and stalk dry matter means were different only among cultivars. BR 700 and CMSXS 762 cultivars showed the best panicle/stalk/leaf ratio and the largest panicle percentage. Increased amounts of nitrogen resulted in increased panicle and decreased stalk percentage. KEY-WORDS: Sorghum; nitrogen fertilization; agronomic valuation. O objetivo do trabalho foi avaliar as características agronômicas de quatro cultivares de sorgo forrageiros, submetidas a três doses de nitrogênio, em solo classificado como Latossolo vermelho distrófico argiloso. Utilizou-se o delineamento blocos casualizados, em esquema fatorial 4x3. As cultivares foram os híbridos CMSXS 762, BRS 610, BR 700 e a variedade BR 506, com três doses de nitrogênio: 50 kg.ha-1, 75 kg.ha-1 e 100 kg.ha-1. A produção de matéria natural, com média geral de 59,31 t.ha-1, diferiu entre as cultivares (teste Tukey a 5% de probabilidade), porém, não diferiu em função das doses de nitrogênio. A produção de massa seca, com média de 15,17 t.ha-1, não diferiu entre as cultivares, nem entre as doses de N. Já os teores de matéria seca e as porcentagens de panícula e de colmo na matéria natural diferiram tanto entre as cultivares como em função das doses. A altura das plantas, com média geral de 2,39 m, e o teor de matéria seca do colmo diferiram somente entre as cultivares. As cultivares BR 700 e CMSXS 762 apresentaram uma melhor relação entre panícula/colmo/folha e uma maior porcentagem de panícula. E, à medida que se aumentou a dose de nitrogênio, verificou-se maior participação de panícula, com redução na percentagem de colmo. PALAVRAS-CHAVE: Sorgo; adubação nitrogenada; avaliação agronômica.Escola de Agronomia - Universidade Federal de Goiás2007-11-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimental;application/savehttps://revistas.ufg.br/pat/article/view/2288Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 35, n. 1, Jan./Apr. 2005; 45-53Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 35, n. 1, jan./abr. 2005; 45-53Pesquisa Agropecuária Tropical; v. 35, n. 1, jan./abr. 2005; 45-531983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/2288/2248Oliveira, Regis de PaulaFrança, Aldi Fernandes de SouzaRodrigues Filho, OsvaldoOliveira, Euclides Reuter deRosa, BenevalSoares, Tatiana VieiraMello, Susana Queiroz Santosinfo:eu-repo/semantics/openAccess2020-02-26T23:59:12Zoai:ojs.revistas.ufg.br:article/2288Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:01.642543Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER
CARACTERÍSTICAS AGRONÔMICAS DE CULTIVARES DE SORGO (Sorghum bicolor (L.) Moench) SOB TRÊS DOSES DE NITROGÊNIO
title AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER
spellingShingle AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER
Oliveira, Regis de Paula
Sorghum
nitrogen fertilization
agronomic valuation
Sorgo
adubação nitrogenada
avaliação agronômica
title_short AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER
title_full AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER
title_fullStr AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER
title_full_unstemmed AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER
title_sort AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER
author Oliveira, Regis de Paula
author_facet Oliveira, Regis de Paula
França, Aldi Fernandes de Souza
Rodrigues Filho, Osvaldo
Oliveira, Euclides Reuter de
Rosa, Beneval
Soares, Tatiana Vieira
Mello, Susana Queiroz Santos
author_role author
author2 França, Aldi Fernandes de Souza
Rodrigues Filho, Osvaldo
Oliveira, Euclides Reuter de
Rosa, Beneval
Soares, Tatiana Vieira
Mello, Susana Queiroz Santos
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, Regis de Paula
França, Aldi Fernandes de Souza
Rodrigues Filho, Osvaldo
Oliveira, Euclides Reuter de
Rosa, Beneval
Soares, Tatiana Vieira
Mello, Susana Queiroz Santos
dc.subject.por.fl_str_mv Sorghum
nitrogen fertilization
agronomic valuation
Sorgo
adubação nitrogenada
avaliação agronômica
topic Sorghum
nitrogen fertilization
agronomic valuation
Sorgo
adubação nitrogenada
avaliação agronômica
description The objective of this study was to evaluate characteristics of four forage sorghum cultivars at three levels of nitrogen fertilizer in an Oxisoil. A randomized complete block design in a 4x3 factorial scheme (CMSXS 762, BRS 610, BR 700 and BR 506 hybrid cultivars combined with 50 kg.ha-1, 75 kg.ha-1 and 100 kg.ha-1 nitrogen levels). A Tukey test was used for comparison of treatment means. The yields of natural matter, with general average 59.31 t.ha-1, were significantly different among sorghum cultivars; but there was no difference caused by nitrogen levels in this trait. The dry matter yield mean (15.17 t.ha-1) did not differ among cultivars or nitrogen levels. As opposed, dry matter and panicle and stalk contents in the natural matter were different among cultivars as well as among N levels. The plant height (with general average 2.39 m) and stalk dry matter means were different only among cultivars. BR 700 and CMSXS 762 cultivars showed the best panicle/stalk/leaf ratio and the largest panicle percentage. Increased amounts of nitrogen resulted in increased panicle and decreased stalk percentage. KEY-WORDS: Sorghum; nitrogen fertilization; agronomic valuation.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-06
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa experimental;
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/2288
url https://revistas.ufg.br/pat/article/view/2288
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/2288/2248
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/save
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 35, n. 1, Jan./Apr. 2005; 45-53
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 35, n. 1, jan./abr. 2005; 45-53
Pesquisa Agropecuária Tropical; v. 35, n. 1, jan./abr. 2005; 45-53
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874813890658304

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