Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000600484 |
Resumo: | Gradual reduction of legumes in mixed tropical pastures requires periodic oversowing. Exploiting the carrying capacity of grass for an extra year after the disappearance of legumes can be economically advantageous to the farmer. This study aimed to evaluate the productivity of Xaraés palisadegrass (Brachiaria brizantha) pastures in response to its historical association with stylo (Stylosanthes guianensis) under two canopy heights to determine whether different grazing management conditions affect the defoliation pattern left by grazing animals. The split-plot experimental design was used, with the historical botanical composition (HBC) (24, 34, 45 and 52 % legume composition) corresponding to the main plots and the canopy frequency of defoliation determined at heights of 30 and 45 cm for Xaraés palisadegrass corresponding to the subplots with two replicates (500 m2) grazed by Tabapuã cows. Pastures with over 34 % stylo in the botanical composition remained productive for one year after legume disappearance, accumulating more than 8 mg ha−1 of forage per year. Xaraés palisadegrass pastures at a height of 30 cm provided better canopy structure, with 64 % less stem production and 43 % less dead material. The 30-cm pre-grazing canopy height provided a grazing environment conducive to forage intake by animals that resulted in efficient use of the pasture. In response to the improved canopy structure, the cows grazed an average of 60 fewer minutes. A HBC greater than 34 % of legumes in the pastures allows for the postponement of legume oversowing until the next growing season. |
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Scientia Agrícola (Online) |
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Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pastureBrachiaria brizanthaStylosanthes guianensismixed pasturesanimal behaviorGradual reduction of legumes in mixed tropical pastures requires periodic oversowing. Exploiting the carrying capacity of grass for an extra year after the disappearance of legumes can be economically advantageous to the farmer. This study aimed to evaluate the productivity of Xaraés palisadegrass (Brachiaria brizantha) pastures in response to its historical association with stylo (Stylosanthes guianensis) under two canopy heights to determine whether different grazing management conditions affect the defoliation pattern left by grazing animals. The split-plot experimental design was used, with the historical botanical composition (HBC) (24, 34, 45 and 52 % legume composition) corresponding to the main plots and the canopy frequency of defoliation determined at heights of 30 and 45 cm for Xaraés palisadegrass corresponding to the subplots with two replicates (500 m2) grazed by Tabapuã cows. Pastures with over 34 % stylo in the botanical composition remained productive for one year after legume disappearance, accumulating more than 8 mg ha−1 of forage per year. Xaraés palisadegrass pastures at a height of 30 cm provided better canopy structure, with 64 % less stem production and 43 % less dead material. The 30-cm pre-grazing canopy height provided a grazing environment conducive to forage intake by animals that resulted in efficient use of the pasture. In response to the improved canopy structure, the cows grazed an average of 60 fewer minutes. A HBC greater than 34 % of legumes in the pastures allows for the postponement of legume oversowing until the next growing season.Escola Superior de Agricultura "Luiz de Queiroz"2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000600484Scientia Agricola v.72 n.6 2015reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0103-9016-2015-0039info:eu-repo/semantics/openAccessMenezes,Rodrigo CarvalhoAlves,Eveline BuenoCasagrande,Daniel RumeLara,Márcio André StefanelliEvangelista,Antônio RicardoBernardes,Thiago Fernandeseng2015-10-21T00:00:00Zoai:scielo:S0103-90162015000600484Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2015-10-21T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture |
title |
Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture |
spellingShingle |
Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture Menezes,Rodrigo Carvalho Brachiaria brizantha Stylosanthes guianensis mixed pastures animal behavior |
title_short |
Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture |
title_full |
Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture |
title_fullStr |
Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture |
title_full_unstemmed |
Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture |
title_sort |
Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture |
author |
Menezes,Rodrigo Carvalho |
author_facet |
Menezes,Rodrigo Carvalho Alves,Eveline Bueno Casagrande,Daniel Rume Lara,Márcio André Stefanelli Evangelista,Antônio Ricardo Bernardes,Thiago Fernandes |
author_role |
author |
author2 |
Alves,Eveline Bueno Casagrande,Daniel Rume Lara,Márcio André Stefanelli Evangelista,Antônio Ricardo Bernardes,Thiago Fernandes |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Menezes,Rodrigo Carvalho Alves,Eveline Bueno Casagrande,Daniel Rume Lara,Márcio André Stefanelli Evangelista,Antônio Ricardo Bernardes,Thiago Fernandes |
dc.subject.por.fl_str_mv |
Brachiaria brizantha Stylosanthes guianensis mixed pastures animal behavior |
topic |
Brachiaria brizantha Stylosanthes guianensis mixed pastures animal behavior |
description |
Gradual reduction of legumes in mixed tropical pastures requires periodic oversowing. Exploiting the carrying capacity of grass for an extra year after the disappearance of legumes can be economically advantageous to the farmer. This study aimed to evaluate the productivity of Xaraés palisadegrass (Brachiaria brizantha) pastures in response to its historical association with stylo (Stylosanthes guianensis) under two canopy heights to determine whether different grazing management conditions affect the defoliation pattern left by grazing animals. The split-plot experimental design was used, with the historical botanical composition (HBC) (24, 34, 45 and 52 % legume composition) corresponding to the main plots and the canopy frequency of defoliation determined at heights of 30 and 45 cm for Xaraés palisadegrass corresponding to the subplots with two replicates (500 m2) grazed by Tabapuã cows. Pastures with over 34 % stylo in the botanical composition remained productive for one year after legume disappearance, accumulating more than 8 mg ha−1 of forage per year. Xaraés palisadegrass pastures at a height of 30 cm provided better canopy structure, with 64 % less stem production and 43 % less dead material. The 30-cm pre-grazing canopy height provided a grazing environment conducive to forage intake by animals that resulted in efficient use of the pasture. In response to the improved canopy structure, the cows grazed an average of 60 fewer minutes. A HBC greater than 34 % of legumes in the pastures allows for the postponement of legume oversowing until the next growing season. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000600484 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000600484 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-9016-2015-0039 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.72 n.6 2015 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936463813181440 |