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Baixa umidade do solo na eficácia de herbicidas aplicados em pré-emergência

dc.contributor.authorde Souza, Guilherme Sasso Ferreira [UNESP]
dc.contributor.authorPereira, Maria Renata Rocha [UNESP]
dc.contributor.authorMartins, Dagoberto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:24:37Z
dc.date.available2018-12-11T17:24:37Z
dc.date.issued2014-01-01
dc.description.abstractThe aim of this study was to evaluate the effect of low soil moisture on the efficacy of applying herbicides ametryn + clomazone, sulfentrazone and tebuthiuron in pre-emergence application submitted to simulated rainfalls at different time intervals after application in control of B. pilosa, C. echinatus and U. plantaginea plants. The experiment was carried out in pots with a capacity of 2.5 L in green-house conditions and experimental design was completely randomized with four replications, arranged in a 3x5 factorial (three herbicides and five rains intervals). The herbicides clomazone + ametryn (Sinerge EC) 5.0 L commercial product (cp) ha-1, sulfentrazone (Boral 500 SC) 1.2 L cp ha-1 and tebuthiuron (combine SC) 2.0 L cp ha-1 were applied in pre-emergence and the precipitation of 20 mm were applied under de pots in five time intervals after the herbicide application (0h, 4h, 8h, 12h and 24hours). Visual evaluations of plants control that emerged plants were realized at 14 and 21 days after treatment application and the plant emergence percentage was calculated. The application of these three herbicides in dry soil then rain within 24 hours after application provided C. echinatus plants emergence, reduced B. pilosa emergency but in the end of the experiment effectively controlled these two species and U. plantaginea plants.en
dc.description.affiliationUniversidade Estadual Paulista 'Júlio de Mesquita Filho' - UNESP
dc.description.affiliationUnespUniversidade Estadual Paulista 'Júlio de Mesquita Filho' - UNESP
dc.format.extent555-562
dc.identifier.citationBioscience Journal, v. 30, n. 5, p. 555-562, 2014.
dc.identifier.issn1981-3163
dc.identifier.issn1516-3725
dc.identifier.scopus2-s2.0-84907768177
dc.identifier.urihttp://hdl.handle.net/11449/177245
dc.language.isopor
dc.relation.ispartofBioscience Journal
dc.relation.ispartofsjr0,303
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectBidens pilosa
dc.subjectCenchrus echinatus
dc.subjectSulfentrazone
dc.subjectTebuthiuron
dc.subjectUrochloa plantaginea
dc.titleBaixa umidade do solo na eficácia de herbicidas aplicados em pré-emergênciapt
dc.title.alternativeLow soil moisture in effectiveness of pre-emergence herbicide applicationen
dc.typeArtigo
dspace.entity.typePublication
unesp.departmentEngenharia Rural - FCApt
unesp.departmentProdução e Melhoramento Vegetal - FCApt

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