Weed suppression in the formation of brachiarias under three sowing methods
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.br/scielo.php?pid=S0100-83582014000400004&script=sci_arttext http://hdl.handle.net/11449/130293 |
Resumo: | The success of conservation systems such as no-till depends on adequate soil cover throughout the year, which is possible through the use of cover crops. For this purpose the species belonging to the genus Urochloa has stood out by virtue of its hardiness and tolerance to drought. Aiming ground cover for the no-till system, the objective was to evaluate the establishment of two species of the genus Urochloa, in three sowing methods, in the weed suppression and the sensitivity of these forages to glyphosate. The study design was a randomized block with a 2 x 3 x 3 factorial arrangement, in which factor A was composed of Urochloa ruziziensis and Urochloa hybrid CIAT 36087 cv. Mulato II, factor B was formed by sowing methods: sown without embedding, sown with light embedding and sown in rows, and factor C was composed of three doses of glyphosate (0.975, 1.625 and 2.275 kg ha(-1) of acid equivalent). For determination of weed suppression, assessment of biomass yield and soil cover was performed, by brachiaria and weeds, at 30, 60, 90, 120 and 258 days after sowing. Visual assessment of the desiccation efficiency at 7 and 14 days after herbicide application was performed. It is concluded that embedding Urochloa seeds stands out in relation to sowing in the soil surface. Urochloa ruziziensis is more efficient in the dry weight yield, weed suppression, in addition to being more sensitive to glyphosate herbicide. |
id |
UNSP_0eefd88ade3a2e211f4687c489146187 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/130293 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Weed suppression in the formation of brachiarias under three sowing methodsNo-tillCrop-livestock integrationUrochloa sp.DesiccationGlyphosateThe success of conservation systems such as no-till depends on adequate soil cover throughout the year, which is possible through the use of cover crops. For this purpose the species belonging to the genus Urochloa has stood out by virtue of its hardiness and tolerance to drought. Aiming ground cover for the no-till system, the objective was to evaluate the establishment of two species of the genus Urochloa, in three sowing methods, in the weed suppression and the sensitivity of these forages to glyphosate. The study design was a randomized block with a 2 x 3 x 3 factorial arrangement, in which factor A was composed of Urochloa ruziziensis and Urochloa hybrid CIAT 36087 cv. Mulato II, factor B was formed by sowing methods: sown without embedding, sown with light embedding and sown in rows, and factor C was composed of three doses of glyphosate (0.975, 1.625 and 2.275 kg ha(-1) of acid equivalent). For determination of weed suppression, assessment of biomass yield and soil cover was performed, by brachiaria and weeds, at 30, 60, 90, 120 and 258 days after sowing. Visual assessment of the desiccation efficiency at 7 and 14 days after herbicide application was performed. It is concluded that embedding Urochloa seeds stands out in relation to sowing in the soil surface. Urochloa ruziziensis is more efficient in the dry weight yield, weed suppression, in addition to being more sensitive to glyphosate herbicide.O sucesso de sistemas conservacionistas, como o plantio direto, depende da cobertura do solo durante todo o ano, o que é possível através da utilização de plantas de cobertura. Com esse propósito, as espécies do gêneroUrochloa têm se destacado em razão de sua rusticidade e tolerância ao déficit hídrico. Almejando a cobertura do solo para o sistema plantio direto, objetivou-se neste estudo avaliar o estabelecimento de duas espécies do gênero Urochloa, em três métodos de semeadura, na supressão de plantas daninhas, bem como a sensibilidade dessas forrageiras ao glyphosate. O delineamento adotado foi o de blocos casualizados, em arranjo fatorial 2 x 3 x 3, no qual o fator A foi composto por Urochloa ruziziensis e Urochloa híbrida CIAT 36087 cv. Mulato II; o fator B foi estabelecido pelos métodos de semeadura a lanço, a lanço com incorporação e em linha; e o fator C foi composto por três doses de glyphosate (0,975, 1,625 e 2,275 kg ha-1 de equivalente ácido). Para determinação da supressão de plantas daninhas, foram realizadas avaliações de produção de fitomassa e cobertura do solo, pelas braquiárias e plantas daninhas, aos 30, 60, 90, 120 e 258 dias após a semeadura. Foram feitas avaliações visuais de eficiência da dessecação aos 7 e 14 dias após a aplicação do herbicida. Conclui-se que a incorporação de sementes de Urochloa se destaca em relação à semeadura a lanço. Urochloa ruziziensis é mais eficiente na produção de massa vegetal, supressão de plantas daninhas, além de ser mais sensível ao herbicida glyphosate.Univ Fed Goias, Jatai, Go, BrazilUNESP, Jaboticabal, SP, BrazilEmater, Itaruma, Go, BrazilUNESP, Jaboticabal, SP, BrazilUniv Federal VicosaUniversidade Federal de Goiás (UFG)Universidade Estadual Paulista (Unesp)EmaterLima, S. F.Timossi, P. C.Almeida, D. P. [UNESP]Silva, U. R.2015-11-03T18:06:27Z2015-11-03T18:06:27Z2014-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article699-707application/pdfhttp://www.scielo.br/scielo.php?pid=S0100-83582014000400004&script=sci_arttextPlanta Daninha. Vicosa: Univ Federal Vicosa, v. 32, n. 4, p. 699-707, 2014.0100-8358http://hdl.handle.net/11449/13029310.1590/S0100-83582014000400004S0100-83582014000400004WOS:000348367500004S0100-83582014000400004.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanta Daninha0.5440,365info:eu-repo/semantics/openAccess2023-12-29T06:17:00Zoai:repositorio.unesp.br:11449/130293Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:34:18.584041Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Weed suppression in the formation of brachiarias under three sowing methods |
title |
Weed suppression in the formation of brachiarias under three sowing methods |
spellingShingle |
Weed suppression in the formation of brachiarias under three sowing methods Lima, S. F. No-till Crop-livestock integration Urochloa sp. Desiccation Glyphosate |
title_short |
Weed suppression in the formation of brachiarias under three sowing methods |
title_full |
Weed suppression in the formation of brachiarias under three sowing methods |
title_fullStr |
Weed suppression in the formation of brachiarias under three sowing methods |
title_full_unstemmed |
Weed suppression in the formation of brachiarias under three sowing methods |
title_sort |
Weed suppression in the formation of brachiarias under three sowing methods |
author |
Lima, S. F. |
author_facet |
Lima, S. F. Timossi, P. C. Almeida, D. P. [UNESP] Silva, U. R. |
author_role |
author |
author2 |
Timossi, P. C. Almeida, D. P. [UNESP] Silva, U. R. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Goiás (UFG) Universidade Estadual Paulista (Unesp) Emater |
dc.contributor.author.fl_str_mv |
Lima, S. F. Timossi, P. C. Almeida, D. P. [UNESP] Silva, U. R. |
dc.subject.por.fl_str_mv |
No-till Crop-livestock integration Urochloa sp. Desiccation Glyphosate |
topic |
No-till Crop-livestock integration Urochloa sp. Desiccation Glyphosate |
description |
The success of conservation systems such as no-till depends on adequate soil cover throughout the year, which is possible through the use of cover crops. For this purpose the species belonging to the genus Urochloa has stood out by virtue of its hardiness and tolerance to drought. Aiming ground cover for the no-till system, the objective was to evaluate the establishment of two species of the genus Urochloa, in three sowing methods, in the weed suppression and the sensitivity of these forages to glyphosate. The study design was a randomized block with a 2 x 3 x 3 factorial arrangement, in which factor A was composed of Urochloa ruziziensis and Urochloa hybrid CIAT 36087 cv. Mulato II, factor B was formed by sowing methods: sown without embedding, sown with light embedding and sown in rows, and factor C was composed of three doses of glyphosate (0.975, 1.625 and 2.275 kg ha(-1) of acid equivalent). For determination of weed suppression, assessment of biomass yield and soil cover was performed, by brachiaria and weeds, at 30, 60, 90, 120 and 258 days after sowing. Visual assessment of the desiccation efficiency at 7 and 14 days after herbicide application was performed. It is concluded that embedding Urochloa seeds stands out in relation to sowing in the soil surface. Urochloa ruziziensis is more efficient in the dry weight yield, weed suppression, in addition to being more sensitive to glyphosate herbicide. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-10-01 2015-11-03T18:06:27Z 2015-11-03T18:06:27Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.scielo.br/scielo.php?pid=S0100-83582014000400004&script=sci_arttext Planta Daninha. Vicosa: Univ Federal Vicosa, v. 32, n. 4, p. 699-707, 2014. 0100-8358 http://hdl.handle.net/11449/130293 10.1590/S0100-83582014000400004 S0100-83582014000400004 WOS:000348367500004 S0100-83582014000400004.pdf |
url |
http://www.scielo.br/scielo.php?pid=S0100-83582014000400004&script=sci_arttext http://hdl.handle.net/11449/130293 |
identifier_str_mv |
Planta Daninha. Vicosa: Univ Federal Vicosa, v. 32, n. 4, p. 699-707, 2014. 0100-8358 10.1590/S0100-83582014000400004 S0100-83582014000400004 WOS:000348367500004 S0100-83582014000400004.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Planta Daninha 0.544 0,365 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
699-707 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Federal Vicosa |
publisher.none.fl_str_mv |
Univ Federal Vicosa |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129337099026432 |