Root system and root and stem base organic reserves of pasture Tanzania grass fertilizer with nitrogen under grazing

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dc.contributor.authorSoares Filho, Cecilio Viega [UNESP]
dc.contributor.authorCecato, Ulysses
dc.contributor.authorRibeiro, Ossival Lolato
dc.contributor.authorCruz Roma, Claudio Fabricio da
dc.contributor.authorJobim, Cloves Cabrera
dc.contributor.authorBeloni, Tatiane
dc.contributor.authorVenturoli Perri, Silvia Helena [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.contributor.institutionUniversidade Federal da Bahia (UFBA)
dc.contributor.institutionTecn Empresa Tortuga
dc.date.accessioned2014-12-03T13:10:41Z
dc.date.available2014-12-03T13:10:41Z
dc.date.issued2013-01-01
dc.description.abstractThe goal of this study was to evaluate the concentrations of non-structural carbohydrate (NSC) and of total nitrogen (N), as well as, to evaluate the root system in Tanzania-grass pastures fertilized with doses of urea in fall, spring and summer. The experiment was conducted at the Experimental Farm of Iguatemi, Maringa, Parana, Brazil, from March 2007 to March 2008. The experimental design was complete random blocks with subplots and four repetitions. The plots showed doses of N (50, 100 e 150 kg ha(-1) of N) plus the control (no N fertilization), and the subplots the season of the year. Root samples were taken at depths of 0-10, 10-20 and 20-40 cm. Root biomass showed a trend for mass accumulation up to a dosage of 100 kg ha(-1) for all seasons evaluated. Also, about 80% of the root system of Tanzaniagrass plants was found on the 0-10 cm layer for all dosages of N. Nitrogen fertilizer above 100 kg ha(-1) may foster fast forage plant growth reducing its NSC root storage capacity although favoring NSC and total N storage at stem base. NSC and total N concentrations were highest in fall, demonstrating that its usage is greater in spring due to the weather conditions being favorable to plant growth. In the regrowth, the largest reserve of total N was at the 0-10 cm root layer and the largest NSC reserve is at stem base.en
dc.description.affiliationUNESP, Fac Med Vet, Dept Apoio Prod & Saude Anim, Aracatuba, SP, Brazil
dc.description.affiliationUniv Estadual Maringa, Dept Zootecnia, Maringa, Parana, Brazil
dc.description.affiliationUniv Fed Bahia, Dept Zootecnia, Salvador, BA, Brazil
dc.description.affiliationTecn Empresa Tortuga, Rondonia, RO, Brazil
dc.description.affiliationUnespUNESP, Fac Med Vet, Dept Apoio Prod & Saude Anim, Aracatuba, SP, Brazil
dc.format.extent2415-2426
dc.identifierhttp://dx.doi.org/10.5433/1679-0359.2013v34n5p2415
dc.identifier.citationSemina-ciencias Agrarias. Londrina: Univ Estadual Londrina, v. 34, n. 5, p. 2415-2426, 2013.
dc.identifier.doi10.5433/1679-0359.2013v34n5p2415
dc.identifier.fileWOS000328272600040.pdf
dc.identifier.issn1676-546X
dc.identifier.lattes2245919840729611
dc.identifier.lattes0810837598202634
dc.identifier.urihttp://hdl.handle.net/11449/112400
dc.identifier.wosWOS:000328272600040
dc.language.isoeng
dc.publisherUniversidade Estadual de Londrina (UEL)
dc.relation.ispartofSemina: Ciências Agrárias
dc.relation.ispartofjcr0.349
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectPanicum maximumen
dc.subjectnon-structural carbohydratesen
dc.subjecttotal nitrogenen
dc.subjectroot biomassen
dc.titleRoot system and root and stem base organic reserves of pasture Tanzania grass fertilizer with nitrogen under grazingen
dc.typeArtigo
dcterms.rightsHolderUniv Estadual Londrina
unesp.author.lattes2245919840729611[1]
unesp.author.lattes0810837598202634
unesp.author.orcid0000-0003-1585-5450[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária, Araçatubapt

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