Adubação nitrogenada e idade de corte na produção de matéria seca do capim-elefante no Cerrado

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dc.contributor.authorFlores, Rilner A.
dc.contributor.authorUrquiaga, Segundo S.
dc.contributor.authorAlves, Bruno J. R.
dc.contributor.authorCollier, Leonardo S.
dc.contributor.authorde Morais, Rafael F.
dc.contributor.authorPrado, Renato de M. [UNESP]
dc.contributor.institutionEscola Agron & Engn Alimentos UFG
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionInst Fed Roraima
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:31:27Z
dc.date.available2014-05-20T15:31:27Z
dc.date.issued2012-12-01
dc.description.abstractThe objective of this study was to investigate the effect of the application of N fertilizer and the cutting age on the dry biomass production of elephant grass. The experiment was performed with the variety Paraiso and planted in a Ferralsol in 2008 in the district of Gurupi (State of Tocantins). Four different rates of urea application were tested (0, 50, 100 and 150 kg ha(-1)) and harvests were made at 120, 150 or 180 days after germination (DAG) of the setts. The dry matter and total N accumulation were evaluated. Dry matter production increased with dose of N, the greatest effect being observed at 180 DAG. There was a linear increase in dry matter (R-2 = 0.75**) and N accumulation (R-2 = 0.96**) permitting a productivity of 34 t ha(-1) of dry matter and an accumulation of 471 kg N ha(-1). The N utilization efficiency (biomass production per unit of applied N) increased with plant age. The higher efficiency of N use favored the quality of biomass production for energy production owing to the higher fibre content.en
dc.description.affiliationEscola Agron & Engn Alimentos UFG, BR-74001970 Goiania, Go, Brazil
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Agrobiol, BR-23890000 Seropedica, RI, Brazil
dc.description.affiliationInst Fed Roraima, Amajari, RR, Brazil
dc.description.affiliationUniv Estadual Paulista, BR-14870000 Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, BR-14870000 Jaboticabal, SP, Brazil
dc.format.extent1282-1288
dc.identifierhttp://dx.doi.org/10.1590/S1415-43662012001200004
dc.identifier.citationRevista Brasileira de Engenharia Agricola E Ambiental. Joao Pessoa Pb: Universidade Federal da Paraíba (UFPB) Ccsa, v. 16, n. 12, p. 1282-1288, 2012.
dc.identifier.issn1415-4366
dc.identifier.urihttp://hdl.handle.net/11449/40582
dc.identifier.wosWOS:000315456900004
dc.language.isopor
dc.publisherUniversidade Federal da Paraíba (UFPB) Ccsa
dc.relation.ispartofRevista Brasileira de Engenharia Agrícola e Ambiental
dc.relation.ispartofsjr0,541
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectPennisetum purpureumen
dc.subjectbiomassen
dc.subjectbioenergyen
dc.titleAdubação nitrogenada e idade de corte na produção de matéria seca do capim-elefante no Cerradopt
dc.title.alternativeEffect of nitrogen fertilizer and cutting age on the dry matter production of elephant grass in Savanaen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbeaa/paboutj.htm
dcterms.rightsHolderUniversidade Federal da Paraíba (UFPB) Ccsa
unesp.author.orcid0000-0003-1998-6343[6]
unesp.author.orcid0000-0002-6484-7150[1]
unesp.author.orcid0000-0002-6911-8037[4]

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