Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities

Detalhes bibliográficos
Autor(a) principal: Neto, Armindo Barth
Data de Publicação: 2013
Outros Autores: Carvalho, Paulo César de Faccio, Lemaire, Gilles, Sbrissia, André Fischer, Canto, Marcos Weber do, Savian, Jean Victor, Amaral, Glaucia Azevedo do, Bremm, Carolina
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/11154
Resumo: The objective of this work was to evaluate tiller density, herbage mass, pattern of tiller population, and sward stability index in Italian ryegrass (Lolium multiflorum) pastures established after soybean or corn, subjected to different stocking methods and grazing intensities by sheep. Rotational or continuous stockings were evaluated under moderate (forage allowance equivalent to 2.5 times the potential consumption of lambs) and low grazing intensities (equivalent to 5.0 times). It was used a completely randomized block design, with a 2x2x2 factorial arrangement with four replicates. Evaluations were done monthly, between August and October 2010, during the pasture period. The tiller population density differed significantly with stocking methods and grazing intensities and was higher in the area previously cultivated with soybean, in the evaluation performed in August. The highest herbage masses were observed in pastures established after soybean at low‑grazing intensity, whereas the lowest were observed in pastures established after corn with moderate grazing intensity. During the reproductive period, tillering density reduced, and the individual tiller mass increased. Moderate grazing intensity reduces the percentage of fertile tillers. Reduction in tiller density during flowering does not affect the sward stability index.
id EMBRAPA-4_859b36aab7d0038113d41733df78b5a3
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/11154
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensitiesPerfilhamento em pastagens de azevém em sucessão a soja ou milho, sob diferentes métodos e intensidades de pastejoLolium multiflorum; tiller density; sward stability index; integrated crop-livestock; forage mass; tillering population patternLolium multiflorum; densidade de perfilhos; índice de estabilidade do pasto; integração lavoura‑pecuária; massa de forragem; padrão populacional de perfilhamentoThe objective of this work was to evaluate tiller density, herbage mass, pattern of tiller population, and sward stability index in Italian ryegrass (Lolium multiflorum) pastures established after soybean or corn, subjected to different stocking methods and grazing intensities by sheep. Rotational or continuous stockings were evaluated under moderate (forage allowance equivalent to 2.5 times the potential consumption of lambs) and low grazing intensities (equivalent to 5.0 times). It was used a completely randomized block design, with a 2x2x2 factorial arrangement with four replicates. Evaluations were done monthly, between August and October 2010, during the pasture period. The tiller population density differed significantly with stocking methods and grazing intensities and was higher in the area previously cultivated with soybean, in the evaluation performed in August. The highest herbage masses were observed in pastures established after soybean at low‑grazing intensity, whereas the lowest were observed in pastures established after corn with moderate grazing intensity. During the reproductive period, tillering density reduced, and the individual tiller mass increased. Moderate grazing intensity reduces the percentage of fertile tillers. Reduction in tiller density during flowering does not affect the sward stability index.O objetivo deste trabalho foi avaliar a densidade populacional de perfilhos, a massa de forragem, o padrão populacional de perfilhamento e o índice de estabilidade de pastagens de azevém anual (Lolium multiflorum) estabelecidas após os cultivos de soja ou milho, submetidas a diferentes métodos e intensidades de pastejo por cordeiros. Foram avaliados os métodos de pastejo rotativo e contínuo, sob as intensidades moderada (oferta de forragem correspondente a 2,5 vezes o potencial de consumo de cordeiros) e baixa (correspondente a 5,0 vezes). Utilizou-se o delineamento experimental de blocos ao acaso, em arranjo fatorial 2x2x2, com quatro repetições. As avaliações foram feitas mensalmente, entre agosto e outubro de 2010, durante a fase de pastejo. A densidade populacional de perfilhos apresentou diferenças significativas para métodos e intensidades de pastejo, e foi maior na área previamente cultivada com soja. As maiores massas de forragem foram observadas em pastagens subsequentes à soja e com baixa intensidade de pastejo, enquanto as menores, nas pastagens subsequentes ao milho e com moderada intensidade de pastejo. No período de florescimento, a densidade de perfilhos reduziu-se e suas massas individuais aumentaram. A intensidade de pastejo moderada reduz o percentual de perfilhos florescidos. A redução da densidade de perfilhos durante o florescimento não compromete o índice de estabilidade do pasto. Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCNPq.Neto, Armindo BarthCarvalho, Paulo César de FaccioLemaire, GillesSbrissia, André FischerCanto, Marcos Weber doSavian, Jean VictorAmaral, Glaucia Azevedo doBremm, Carolina2013-06-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/11154Pesquisa Agropecuaria Brasileira; v.48, n.3, mar. 2013; 329-338Pesquisa Agropecuária Brasileira; v.48, n.3, mar. 2013; 329-3381678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/11154/11132https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/11154/6613info:eu-repo/semantics/openAccess2013-06-06T21:18:09Zoai:ojs.seer.sct.embrapa.br:article/11154Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2013-06-06T21:18:09Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities
Perfilhamento em pastagens de azevém em sucessão a soja ou milho, sob diferentes métodos e intensidades de pastejo
title Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities
spellingShingle Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities
Neto, Armindo Barth
Lolium multiflorum; tiller density; sward stability index; integrated crop-livestock; forage mass; tillering population pattern
Lolium multiflorum; densidade de perfilhos; índice de estabilidade do pasto; integração lavoura‑pecuária; massa de forragem; padrão populacional de perfilhamento
title_short Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities
title_full Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities
title_fullStr Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities
title_full_unstemmed Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities
title_sort Tillering in Italian ryegrass established after soybean or corn, under different stockings and grazing intensities
author Neto, Armindo Barth
author_facet Neto, Armindo Barth
Carvalho, Paulo César de Faccio
Lemaire, Gilles
Sbrissia, André Fischer
Canto, Marcos Weber do
Savian, Jean Victor
Amaral, Glaucia Azevedo do
Bremm, Carolina
author_role author
author2 Carvalho, Paulo César de Faccio
Lemaire, Gilles
Sbrissia, André Fischer
Canto, Marcos Weber do
Savian, Jean Victor
Amaral, Glaucia Azevedo do
Bremm, Carolina
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv
CNPq.
dc.contributor.author.fl_str_mv Neto, Armindo Barth
Carvalho, Paulo César de Faccio
Lemaire, Gilles
Sbrissia, André Fischer
Canto, Marcos Weber do
Savian, Jean Victor
Amaral, Glaucia Azevedo do
Bremm, Carolina
dc.subject.por.fl_str_mv Lolium multiflorum; tiller density; sward stability index; integrated crop-livestock; forage mass; tillering population pattern
Lolium multiflorum; densidade de perfilhos; índice de estabilidade do pasto; integração lavoura‑pecuária; massa de forragem; padrão populacional de perfilhamento
topic Lolium multiflorum; tiller density; sward stability index; integrated crop-livestock; forage mass; tillering population pattern
Lolium multiflorum; densidade de perfilhos; índice de estabilidade do pasto; integração lavoura‑pecuária; massa de forragem; padrão populacional de perfilhamento
description The objective of this work was to evaluate tiller density, herbage mass, pattern of tiller population, and sward stability index in Italian ryegrass (Lolium multiflorum) pastures established after soybean or corn, subjected to different stocking methods and grazing intensities by sheep. Rotational or continuous stockings were evaluated under moderate (forage allowance equivalent to 2.5 times the potential consumption of lambs) and low grazing intensities (equivalent to 5.0 times). It was used a completely randomized block design, with a 2x2x2 factorial arrangement with four replicates. Evaluations were done monthly, between August and October 2010, during the pasture period. The tiller population density differed significantly with stocking methods and grazing intensities and was higher in the area previously cultivated with soybean, in the evaluation performed in August. The highest herbage masses were observed in pastures established after soybean at low‑grazing intensity, whereas the lowest were observed in pastures established after corn with moderate grazing intensity. During the reproductive period, tillering density reduced, and the individual tiller mass increased. Moderate grazing intensity reduces the percentage of fertile tillers. Reduction in tiller density during flowering does not affect the sward stability index.
publishDate 2013
dc.date.none.fl_str_mv 2013-06-06
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/11154
url https://seer.sct.embrapa.br/index.php/pab/article/view/11154
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/11154/11132
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/11154/6613
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.48, n.3, mar. 2013; 329-338
Pesquisa Agropecuária Brasileira; v.48, n.3, mar. 2013; 329-338
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
_version_ 1793416689245749248