Suppressive effects on weeds and dry matter yields of cover crops

Detalhes bibliográficos
Autor(a) principal: Ferreira, Alexandre Cunha de Barcellos
Data de Publicação: 2018
Outros Autores: Borin, Ana Luiza Dias Coelho, Bogiani, Julio Cesar, Lamas, Fernando Mendes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/25243
Resumo: The objective of this work was to evaluate the dry matter yield of cover crops and their suppressive effects on weeds. The experiment was carried out during three years in a cerrado area of the state of Goiás, Brazil, and consisted of 16 treatments with fallow and cover crops cultivated in single cropping and intercropping. Fallow allowed high weed infestation. Cover crops affected the composition of weeds, which showed greater diversity in fallow, followed by the Pennisetum glaucum 'BRS 1501' and Cajanus cajan crops. In the average of the three experimental years, the highest dry matter yield was observed for the treatments Panicum maximum (10,857 kg ha-1), Urochloa brizantha 'Piatã' (11,437 kg ha-1), U. ruziziensis (9,463 kg ha-1), and U. ruziziensis intercropped with Crotalaria spectabilis (9,167 kg ha-1), which prevented weed infestation. Pennisetum glaucum 'BRS 1501' had a low dry matter yield (<5,000 kg ha-1) and did not suppress weeds. Panicum maximum, U. brizantha 'Piatã', U. ruziziensis, and U. ruziziensis intercropped with C. spectabilis provide high dry matter yield and suppress weed infestation in the cerrado area.
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spelling Suppressive effects on weeds and dry matter yields of cover cropsSupressão de invasoras e produtividade de matéria seca por plantas de coberturafallow; species composition; straw mulch; weed controlpousio; composição de espécies; cobertura morta; controle de plantas daninhasThe objective of this work was to evaluate the dry matter yield of cover crops and their suppressive effects on weeds. The experiment was carried out during three years in a cerrado area of the state of Goiás, Brazil, and consisted of 16 treatments with fallow and cover crops cultivated in single cropping and intercropping. Fallow allowed high weed infestation. Cover crops affected the composition of weeds, which showed greater diversity in fallow, followed by the Pennisetum glaucum 'BRS 1501' and Cajanus cajan crops. In the average of the three experimental years, the highest dry matter yield was observed for the treatments Panicum maximum (10,857 kg ha-1), Urochloa brizantha 'Piatã' (11,437 kg ha-1), U. ruziziensis (9,463 kg ha-1), and U. ruziziensis intercropped with Crotalaria spectabilis (9,167 kg ha-1), which prevented weed infestation. Pennisetum glaucum 'BRS 1501' had a low dry matter yield (<5,000 kg ha-1) and did not suppress weeds. Panicum maximum, U. brizantha 'Piatã', U. ruziziensis, and U. ruziziensis intercropped with C. spectabilis provide high dry matter yield and suppress weed infestation in the cerrado area.O objetivo deste trabalho foi avaliar a produção de matéria seca de plantas de cobertura e seus efeitos supressivos sobre plantas daninhas. O experimento foi conduzido durante três anos em área de cerrado do Estado de Goiás e consistiu de 16 tratamentos com pousio e plantas de cobertura em cultivos solteiros e consorciados. O pousio propiciou alta infestação de plantas daninhas. As plantas de cobertura influenciaram a composição de plantas daninhas, que apresentaram maior diversidade no pousio, seguido dos cultivos de Pennisetum glaucum 'BRS 1501' e de Cajanus cajan. Na média dos três anos experimentais, as maiores produções de matéria seca foram observadas para os tratamentos Panicum maximum (10.857 kg ha-1), Urochloa brizantha 'Piatã' (11.437 kg ha-1), U. ruziziensis (9.463 kg ha-1) e U. ruziziensis consorciada com Crotalaria spectabilis (9.167 kg ha-1), o que impediu a infestação de plantas daninhas. Pennisetum glaucum 'BRS 1501' teve baixa produção de matéria seca (<5.000 kg ha-1) e não suprimiu as plantas daninhas. Panicum maximum, U. brizantha 'Piatã', U. ruziziensis e U. ruziziensis consorciada com C. spectabilis apresentam grande produção de matéria seca e suprimem a infestação de plantas daninhas em área de cerrado.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFundação GoiásFerreira, Alexandre Cunha de BarcellosBorin, Ana Luiza Dias CoelhoBogiani, Julio CesarLamas, Fernando Mendes2018-08-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/25243Pesquisa Agropecuaria Brasileira; v.53, n.5, May 2018; 566-574Pesquisa Agropecuária Brasileira; v.53, n.5, May 2018; 566-5741678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/25243/14204https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25243/17016Direitos autorais 2018 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2018-08-13T13:38:43Zoai:ojs.seer.sct.embrapa.br:article/25243Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2018-08-13T13:38:43Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Suppressive effects on weeds and dry matter yields of cover crops
Supressão de invasoras e produtividade de matéria seca por plantas de cobertura
title Suppressive effects on weeds and dry matter yields of cover crops
spellingShingle Suppressive effects on weeds and dry matter yields of cover crops
Ferreira, Alexandre Cunha de Barcellos
fallow; species composition; straw mulch; weed control
pousio; composição de espécies; cobertura morta; controle de plantas daninhas
title_short Suppressive effects on weeds and dry matter yields of cover crops
title_full Suppressive effects on weeds and dry matter yields of cover crops
title_fullStr Suppressive effects on weeds and dry matter yields of cover crops
title_full_unstemmed Suppressive effects on weeds and dry matter yields of cover crops
title_sort Suppressive effects on weeds and dry matter yields of cover crops
author Ferreira, Alexandre Cunha de Barcellos
author_facet Ferreira, Alexandre Cunha de Barcellos
Borin, Ana Luiza Dias Coelho
Bogiani, Julio Cesar
Lamas, Fernando Mendes
author_role author
author2 Borin, Ana Luiza Dias Coelho
Bogiani, Julio Cesar
Lamas, Fernando Mendes
author2_role author
author
author
dc.contributor.none.fl_str_mv
Fundação Goiás
dc.contributor.author.fl_str_mv Ferreira, Alexandre Cunha de Barcellos
Borin, Ana Luiza Dias Coelho
Bogiani, Julio Cesar
Lamas, Fernando Mendes
dc.subject.por.fl_str_mv fallow; species composition; straw mulch; weed control
pousio; composição de espécies; cobertura morta; controle de plantas daninhas
topic fallow; species composition; straw mulch; weed control
pousio; composição de espécies; cobertura morta; controle de plantas daninhas
description The objective of this work was to evaluate the dry matter yield of cover crops and their suppressive effects on weeds. The experiment was carried out during three years in a cerrado area of the state of Goiás, Brazil, and consisted of 16 treatments with fallow and cover crops cultivated in single cropping and intercropping. Fallow allowed high weed infestation. Cover crops affected the composition of weeds, which showed greater diversity in fallow, followed by the Pennisetum glaucum 'BRS 1501' and Cajanus cajan crops. In the average of the three experimental years, the highest dry matter yield was observed for the treatments Panicum maximum (10,857 kg ha-1), Urochloa brizantha 'Piatã' (11,437 kg ha-1), U. ruziziensis (9,463 kg ha-1), and U. ruziziensis intercropped with Crotalaria spectabilis (9,167 kg ha-1), which prevented weed infestation. Pennisetum glaucum 'BRS 1501' had a low dry matter yield (<5,000 kg ha-1) and did not suppress weeds. Panicum maximum, U. brizantha 'Piatã', U. ruziziensis, and U. ruziziensis intercropped with C. spectabilis provide high dry matter yield and suppress weed infestation in the cerrado area.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-13
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/25243
url https://seer.sct.embrapa.br/index.php/pab/article/view/25243
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/25243/14204
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25243/17016
dc.rights.driver.fl_str_mv Direitos autorais 2018 Pesquisa Agropecuária Brasileira
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2018 Pesquisa Agropecuária Brasileira
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.53, n.5, May 2018; 566-574
Pesquisa Agropecuária Brasileira; v.53, n.5, May 2018; 566-574
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
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