SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION

Detalhes bibliográficos
Autor(a) principal: Lima, Karla Rodrigues de
Data de Publicação: 2016
Outros Autores: Carvalho, Carlos Augusto Brandão de, Azevedo, Flavio Henrique Vidal, Malafaia, Pedro Antonio Muninz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/5057
Resumo: This study aimed to assess the effect of nitrogen (N) and potassium (K) fertilisation on the forage accumulation and nutritive value of Urochloa ruziziensis during the summer of 2010/2011 and autumn, winter, spring and summer of 2011/2012. A complete randomised block design with four treatments (0, 120, 240 and 360 kg ha-1 year-1 N and K2O) and five replicates were used. The data were analysed under the PROC MIXED of SAS®. The following variables were evaluated: sward height; forage mass; forage bulk density; percentages of leaf blade dry matter, stem dry matter, and dead material dry matter; leaf blade:stem ratio; contents of dry matter and crude protein; in vitro digestibility of dry matter; neutral detergent fibre content; and lignin content of Urochloa ruziziensis. There was an interaction between the N and K levels of fertilisation and the season for all variables. In addition, there was a positive linear effect of the N and K levels of fertilisation on the forage accumulation rate, the crude protein content and the in vitro digestibility of dry matter and a negative linear effect these levels on the neutral detergent fibre and lignin contents during the spring and summer of 2011/2012. N and K fertilisation and the climate changes characteristic of each season jointly affected the accumulation and nutritive value of Urochloa ruziziensis. N and K fertilisation up to 360 kg ha-1 year-1 improved the forage accumulation and nutritive value of Urochloa ruziziensis.
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spelling SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATIONESTRUTURA DO DOSSEL E VALOR NUTRITIVO DE UROCHLOA RUZIZIENSIS SOB ADUBAÇÃO NITROGENADA E POTÁSSICACrude protein. Forage mass. Lignin. Neutral detergent fibre. Sward height.Proteína bruta. Massa de forragem. Lignina. Fibra em detergente neutro. Altura do dossel.This study aimed to assess the effect of nitrogen (N) and potassium (K) fertilisation on the forage accumulation and nutritive value of Urochloa ruziziensis during the summer of 2010/2011 and autumn, winter, spring and summer of 2011/2012. A complete randomised block design with four treatments (0, 120, 240 and 360 kg ha-1 year-1 N and K2O) and five replicates were used. The data were analysed under the PROC MIXED of SAS®. The following variables were evaluated: sward height; forage mass; forage bulk density; percentages of leaf blade dry matter, stem dry matter, and dead material dry matter; leaf blade:stem ratio; contents of dry matter and crude protein; in vitro digestibility of dry matter; neutral detergent fibre content; and lignin content of Urochloa ruziziensis. There was an interaction between the N and K levels of fertilisation and the season for all variables. In addition, there was a positive linear effect of the N and K levels of fertilisation on the forage accumulation rate, the crude protein content and the in vitro digestibility of dry matter and a negative linear effect these levels on the neutral detergent fibre and lignin contents during the spring and summer of 2011/2012. N and K fertilisation and the climate changes characteristic of each season jointly affected the accumulation and nutritive value of Urochloa ruziziensis. N and K fertilisation up to 360 kg ha-1 year-1 improved the forage accumulation and nutritive value of Urochloa ruziziensis.Este estudo objetivou avaliar o efeito da adubação com nitrogênio (N) e potássio (K) sobre o acúmulo o valor nutritivo da forragem da Urochloa ruziziensis, durante as estações de verão de 2010/2011 (verão 1), outono, inverno, primavera e verão de 2011/2012. Foi utilizado o delineamento em blocos completos casualizados com quatro tratamentos (0, 120, 240 e 360 kg ha-1year-1 de N e K2O) e cinco repetições. Os dados foram analisados pelo PROC MIXED do SAS®. Foram avaliadas as variáveis: altura do dossel, massa de forragem, densidade volumétrica da forragem; porcentagens de massas secas de lâminas foliares, colmos de material morto; relação lâmina: colmo; teores de matéria seca, proteína bruta e digestibilidade in vitro da matéria seca, fibra em detergente neutro, lignina da forragem da Urochloa ruziziensis. Houve efeito de interação entre doses de adubação com N e K e estação do ano para todas as variáveis. Também houve efeito linear positivo de doses de fertilização com N e K sobre a taxa de acúmulo de forragem, o teor de proteína bruta e da digestibilidade in vitro da matéria seca, e efeito linear negativo sobre os teores de fibra em detergente neutro e de lignina durante a primavera e o verão 2. A adubação com N e K e as mudanças climáticas características de cada estação afetam de forma conjunta o acúmulo e valor nutritivo da Urochloa ruziziensis. A adubação com N e K com até 360 kg ha-1ano-1 aumenta o acúmulo de foragem e o valor nutritivo de Urochloa ruziziensis.Universidade Federal Rural do Semi-Árido2016-12-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/505710.1590/1983-21252017v30n124rcREVISTA CAATINGA; Vol. 30 No. 1 (2017); 220-229Revista Caatinga; v. 30 n. 1 (2017); 220-2291983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/5057/pdfLima, Karla Rodrigues deCarvalho, Carlos Augusto Brandão deAzevedo, Flavio Henrique VidalMalafaia, Pedro Antonio Muninzinfo:eu-repo/semantics/openAccess2023-07-20T10:41:23Zoai:ojs.periodicos.ufersa.edu.br:article/5057Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:20.909065Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION
ESTRUTURA DO DOSSEL E VALOR NUTRITIVO DE UROCHLOA RUZIZIENSIS SOB ADUBAÇÃO NITROGENADA E POTÁSSICA
title SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION
spellingShingle SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION
Lima, Karla Rodrigues de
Crude protein. Forage mass. Lignin. Neutral detergent fibre. Sward height.
Proteína bruta. Massa de forragem. Lignina. Fibra em detergente neutro. Altura do dossel.
title_short SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION
title_full SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION
title_fullStr SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION
title_full_unstemmed SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION
title_sort SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION
author Lima, Karla Rodrigues de
author_facet Lima, Karla Rodrigues de
Carvalho, Carlos Augusto Brandão de
Azevedo, Flavio Henrique Vidal
Malafaia, Pedro Antonio Muninz
author_role author
author2 Carvalho, Carlos Augusto Brandão de
Azevedo, Flavio Henrique Vidal
Malafaia, Pedro Antonio Muninz
author2_role author
author
author
dc.contributor.author.fl_str_mv Lima, Karla Rodrigues de
Carvalho, Carlos Augusto Brandão de
Azevedo, Flavio Henrique Vidal
Malafaia, Pedro Antonio Muninz
dc.subject.por.fl_str_mv Crude protein. Forage mass. Lignin. Neutral detergent fibre. Sward height.
Proteína bruta. Massa de forragem. Lignina. Fibra em detergente neutro. Altura do dossel.
topic Crude protein. Forage mass. Lignin. Neutral detergent fibre. Sward height.
Proteína bruta. Massa de forragem. Lignina. Fibra em detergente neutro. Altura do dossel.
description This study aimed to assess the effect of nitrogen (N) and potassium (K) fertilisation on the forage accumulation and nutritive value of Urochloa ruziziensis during the summer of 2010/2011 and autumn, winter, spring and summer of 2011/2012. A complete randomised block design with four treatments (0, 120, 240 and 360 kg ha-1 year-1 N and K2O) and five replicates were used. The data were analysed under the PROC MIXED of SAS®. The following variables were evaluated: sward height; forage mass; forage bulk density; percentages of leaf blade dry matter, stem dry matter, and dead material dry matter; leaf blade:stem ratio; contents of dry matter and crude protein; in vitro digestibility of dry matter; neutral detergent fibre content; and lignin content of Urochloa ruziziensis. There was an interaction between the N and K levels of fertilisation and the season for all variables. In addition, there was a positive linear effect of the N and K levels of fertilisation on the forage accumulation rate, the crude protein content and the in vitro digestibility of dry matter and a negative linear effect these levels on the neutral detergent fibre and lignin contents during the spring and summer of 2011/2012. N and K fertilisation and the climate changes characteristic of each season jointly affected the accumulation and nutritive value of Urochloa ruziziensis. N and K fertilisation up to 360 kg ha-1 year-1 improved the forage accumulation and nutritive value of Urochloa ruziziensis.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-02
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/5057
10.1590/1983-21252017v30n124rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/5057
identifier_str_mv 10.1590/1983-21252017v30n124rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/5057/pdf
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 30 No. 1 (2017); 220-229
Revista Caatinga; v. 30 n. 1 (2017); 220-229
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
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