Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes

Detalhes bibliográficos
Autor(a) principal: Santos, Manoel Eduardo Rozalino
Data de Publicação: 2022
Outros Autores: Carvalho, Angélica Nunes, Paiva, Adenilson José, Carvalho, Bruno Humberto Rezende, Borges, Gustavo Segatto, Silva, Simone Pedro da, Oliveira, Davi Moraes, Oliveira, Dallety Haloma Alves Miler de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44022
Resumo: Based on the hypothesis that climate and fertilizers influence the proportion of tiller age categories in the canopy and, consequently, in herbage accumulation, the objective of this study was to determine the population density and the contribution of tiller age categories for herbage accumulation of Urochloa brizantha cv. Marandu during the year and in response to phosphate and nitrogen fertilization. The treatments consisted of two fertilization strategies: low and high fertilization and three tiller ages (young, mature and old), evaluated at four times of the year: winter, early and late spring, and summer. The total number of tillers and the proportion of young tillers were higher in late spring and summer. The growth and herbage accumulation rates showed a typical seasonal pattern and were higher in the canopy under high fertilization. Old tillers contributed more to control the total stem growth rate, as well as the canopy senescence rate. The highest percentage of young tillers is related to the high herbage accumulation in the Marandu palisadegrass canopy.
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spelling Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimesContribuição da categoria de idade do perfilho para o acúmulo de forragem de capim-marandu sob dois regimes de fertilizaçãoBrachiaria brizanthaForage productionNitrogen and phosphate fertilizationTropical pastureUrochloa brizantha.Adubação nitrogenada e fosfatadaBrachiaria brizanthaPastagem tropicalProdução de forragemUrochloa brizantha.Based on the hypothesis that climate and fertilizers influence the proportion of tiller age categories in the canopy and, consequently, in herbage accumulation, the objective of this study was to determine the population density and the contribution of tiller age categories for herbage accumulation of Urochloa brizantha cv. Marandu during the year and in response to phosphate and nitrogen fertilization. The treatments consisted of two fertilization strategies: low and high fertilization and three tiller ages (young, mature and old), evaluated at four times of the year: winter, early and late spring, and summer. The total number of tillers and the proportion of young tillers were higher in late spring and summer. The growth and herbage accumulation rates showed a typical seasonal pattern and were higher in the canopy under high fertilization. Old tillers contributed more to control the total stem growth rate, as well as the canopy senescence rate. The highest percentage of young tillers is related to the high herbage accumulation in the Marandu palisadegrass canopy.Levando em consideração que os fertilizantes e o clima podem influenciar na faixa etária de perfilhos de um dossel e consequentemente no acúmulo de forragem, o objetivo desse trabalho foi determinar a densidade populacional e a contruibuição das faixas etárias de perfilhos para o acúmulo de forragem Uruchloa brizanta cv Marandu durante o ano e em resposta a fertização com fosfato e nitrogênio. O tratamento foi constituido de duas estratégias de fertilização: baixa e alta fertilização e três faixas etárias de perfilhos (jovem, maduro e velho) avaliadas em quatro épocas do ano (inverno, início e fim da primavera e verão). O número total de perfilhos e a proporção de perfilhos jovens foram maiores no final da primavera e no verão. As taxas de crescimento e de acumulação de forragem mostraram um padrão sazonal típico e foram maiores no dossel com alto nivel de fertilização do que com baixo nível de fertilizante. O perfilho velho contribuiu mais para controlar as taxas de crescimento total do caule, bem como para a taxa de senescência do dossel. A maior porcentagem de perfilhos jovens está relacionada ao alto acúmulo de forragem no dossel do capim-marandu.UEL2022-01-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionMethodapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4402210.5433/1679-0359.2022v43n1p211Semina: Ciências Agrárias; Vol. 43 No. 1 (2022); 211-228Semina: Ciências Agrárias; v. 43 n. 1 (2022); 211-2281679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44022/30551Copyright (c) 2021 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessSantos, Manoel Eduardo RozalinoCarvalho, Angélica NunesPaiva, Adenilson JoséCarvalho, Bruno Humberto RezendeBorges, Gustavo SegattoSilva, Simone Pedro daOliveira, Davi MoraesOliveira, Dallety Haloma Alves Miler de2022-09-29T15:47:38Zoai:ojs.pkp.sfu.ca:article/44022Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-09-29T15:47:38Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes
Contribuição da categoria de idade do perfilho para o acúmulo de forragem de capim-marandu sob dois regimes de fertilização
title Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes
spellingShingle Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes
Santos, Manoel Eduardo Rozalino
Brachiaria brizantha
Forage production
Nitrogen and phosphate fertilization
Tropical pasture
Urochloa brizantha.
Adubação nitrogenada e fosfatada
Brachiaria brizantha
Pastagem tropical
Produção de forragem
Urochloa brizantha.
title_short Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes
title_full Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes
title_fullStr Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes
title_full_unstemmed Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes
title_sort Contribution of tiller age category to herbage accumulation of Marandu palisadegrass under two fertilization regimes
author Santos, Manoel Eduardo Rozalino
author_facet Santos, Manoel Eduardo Rozalino
Carvalho, Angélica Nunes
Paiva, Adenilson José
Carvalho, Bruno Humberto Rezende
Borges, Gustavo Segatto
Silva, Simone Pedro da
Oliveira, Davi Moraes
Oliveira, Dallety Haloma Alves Miler de
author_role author
author2 Carvalho, Angélica Nunes
Paiva, Adenilson José
Carvalho, Bruno Humberto Rezende
Borges, Gustavo Segatto
Silva, Simone Pedro da
Oliveira, Davi Moraes
Oliveira, Dallety Haloma Alves Miler de
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos, Manoel Eduardo Rozalino
Carvalho, Angélica Nunes
Paiva, Adenilson José
Carvalho, Bruno Humberto Rezende
Borges, Gustavo Segatto
Silva, Simone Pedro da
Oliveira, Davi Moraes
Oliveira, Dallety Haloma Alves Miler de
dc.subject.por.fl_str_mv Brachiaria brizantha
Forage production
Nitrogen and phosphate fertilization
Tropical pasture
Urochloa brizantha.
Adubação nitrogenada e fosfatada
Brachiaria brizantha
Pastagem tropical
Produção de forragem
Urochloa brizantha.
topic Brachiaria brizantha
Forage production
Nitrogen and phosphate fertilization
Tropical pasture
Urochloa brizantha.
Adubação nitrogenada e fosfatada
Brachiaria brizantha
Pastagem tropical
Produção de forragem
Urochloa brizantha.
description Based on the hypothesis that climate and fertilizers influence the proportion of tiller age categories in the canopy and, consequently, in herbage accumulation, the objective of this study was to determine the population density and the contribution of tiller age categories for herbage accumulation of Urochloa brizantha cv. Marandu during the year and in response to phosphate and nitrogen fertilization. The treatments consisted of two fertilization strategies: low and high fertilization and three tiller ages (young, mature and old), evaluated at four times of the year: winter, early and late spring, and summer. The total number of tillers and the proportion of young tillers were higher in late spring and summer. The growth and herbage accumulation rates showed a typical seasonal pattern and were higher in the canopy under high fertilization. Old tillers contributed more to control the total stem growth rate, as well as the canopy senescence rate. The highest percentage of young tillers is related to the high herbage accumulation in the Marandu palisadegrass canopy.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-10
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Method
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44022
10.5433/1679-0359.2022v43n1p211
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44022
identifier_str_mv 10.5433/1679-0359.2022v43n1p211
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/44022/30551
dc.rights.driver.fl_str_mv Copyright (c) 2021 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2021 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 43 No. 1 (2022); 211-228
Semina: Ciências Agrárias; v. 43 n. 1 (2022); 211-228
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
_version_ 1799306085576736768

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