Manejo de brachiaria decumbens e seu reflexo no desenvolvimento de Eucalyptus grandis

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dc.contributor.authorDe Toledo, Roberto Estêvão Bragion
dc.contributor.authorDa Costa Aguiar Alves, Pedro Luís [UNESP]
dc.contributor.authorDo Valle, Celina Ferraz
dc.contributor.authorAlvarenga, Sílvio Fernandes
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionVotorantim Celulose e Papel S.A.
dc.contributor.institutionPlant Serviços Agrícolas
dc.date.accessioned2014-05-27T11:19:44Z
dc.date.available2014-05-27T11:19:44Z
dc.date.issued1999-06-01
dc.description.abstractA field trial was carried out in Santa Rita do Passa Quatro, SP, on sandy soil, between February 1993 to February 1995, aiming to study the effects of fertilizer doses and brachiaria grass control on the growth of E. grandis. In the field the plots (9×9 plants, spacing 2×3 m) were located following a randomized block experimental design with four repetitions. The treatments were arranged in a factorial design with four systems of brachiaria grass control in the space between the Eucalyptus rows: mowing, cultivation, chemical control with glyphosate (2,08 kg eq. ác./ha) and hand hoeing were developed when the population reached the early flowering stage and four doses of the fertilizer 20-05-20: 0, 115, 230 and 345 kg/ha, handled at 3, 6 and 12 monthes after the transplantation. The hand hoeing was the most effective method of brachiaria grass control. However the hand hoeing controlled plots showed a decrease on the E. grandis growth exhibiting slower growth rate, shorter plants, thinner stems, smaller leaf area results and reduction on dry matter accumulation than the plants from the other plots under different weed control management's. The glyphosate promoted an excellent brachiaria grass control while the E. grandis plants grow better. Both remainder weed control management systems were intermediary in terms of efficacy. The mowing management was the most similar method as compared to the hand hoeing one and the cultivation treatments to the chemical control method. The growth rate differences observed between the hand hoeing and chemical control treatments were not caused directly by late fertilizations. There were no significative interactions among the weed control systems and the fertilization doses. Considering the brachiaria grass that grew between the E. grandis rows there were detected benefits to the crop and these effects increased when the chemical control was used for weed management.en
dc.description.affiliationEscola Superior de Agricultura Luiz de Queiroz - ESALQ/USP, Caixa Postal 9, Piracicaba, SP - 13400-970
dc.description.affiliationDepartamento de Biologia Aplicada à Agropecuária FCAVJ/UNESP, Jaboticabal, SP - 14870-000
dc.description.affiliationVotorantim Celulose e Papel S.A., Luiz Antonio, SP. 14210-000
dc.description.affiliationPlant Serviços Agrícolas, Ribeirão Preto, SP. 14001-970
dc.description.affiliationUnespDepartamento de Biologia Aplicada à Agropecuária FCAVJ/UNESP, Jaboticabal, SP - 14870-000
dc.format.extent129-141
dc.identifierhttp://www.ipef.br/publicacoes/scientia/nr55/cap11.pdf
dc.identifier.citationScientia Forestalis/Forest Sciences, n. 55, p. 129-141, 1999.
dc.identifier.file2-s2.0-0033139137.pdf
dc.identifier.issn1413-9324
dc.identifier.scopus2-s2.0-0033139137
dc.identifier.urihttp://hdl.handle.net/11449/65788
dc.language.isopor
dc.relation.ispartofScientia Forestalis/Forest Sciences
dc.relation.ispartofjcr0.500
dc.relation.ispartofsjr0,495
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBrachiaria grass
dc.subjectEucalyptus
dc.subjectInterference
dc.subjectWeed control
dc.titleManejo de brachiaria decumbens e seu reflexo no desenvolvimento de Eucalyptus grandispt
dc.title.alternativeBrachiaria decumbens management and effects on the crop development of Eucalyptus grandisen
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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