Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118259
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dc.contributor.authorRAMALHO, I. O.eng
dc.contributor.authorREZENDE, C. de P.eng
dc.contributor.authorPEREIRA, J. M.eng
dc.contributor.authorSANTOS, C. A. doseng
dc.contributor.authorMONTEIRO, R. C.eng
dc.contributor.authorALVES, B. J. R.eng
dc.contributor.authorCARVALÇHO, I. das N. O. deeng
dc.contributor.authorURQUIAGA, S.eng
dc.contributor.authorBODDEY, R. M.eng
dc.date.accessioned2020-01-07T18:12:50Z-
dc.date.available2020-01-07T18:12:50Z-
dc.date.created2020-01-07
dc.date.issued2019
dc.identifier.citationCiência Rural, v. 49, n. 12, Epub Dec. 02, 2019eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1118259-
dc.descriptionThe objectives of this study were to determine the rates of plant litter deposition and decomposition in Marandu pastures (Urochloa brizantha cv. Marandu) under a) three forms of nitrogen (N) supply, b) at different stages of rotational grazing and c) to compare the single-exponential decay constant (?k?) derived from litterbags with values derived from estimates of deposited and existing litter (DEL technique). The three N supply treatments were: without or with N fertilization (zero or 150 kg N ha-1 yr-1) or with the legume Desmodium ovalifolium. There were no significant differences (p<0.05) between existing litter and rates of litter deposition and decomposition between the three N supply treatments. The litter decomposition rate was estimated using the DEL technique for the 7-day grazing periods and two subsequent 14-day periods in each 35-day grazing cycle. The litter decomposition rate was (P<0.05) higher for the second rest period (days 21 to 35) at 0.089 g g-1 day-1, than for the grazing period (0.038 g g-1 day-1) and for the first rest period (0.040 g g-1 day-1). The mean half-life of the litter was 12 days using the DEL technique while the estimate from the litterbags was 136 days. Results showed that estimates provided by litterbags severely underestimate the decomposition in relation to the DEL technique and predict a long-term accumulation of litter which is not observed.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectDecomposition constanteng
dc.subjectMethodological comparisoneng
dc.subjectCapim marandueng
dc.subjectComparação de metodologiaseng
dc.titleDeposition and decomposition of litter in periods of grazing and rest of a tropical pasture under rotational grazing.eng
dc.typeArtigo de periódicoeng
dc.date.updated2020-01-07T18:12:50Z
dc.description.notesTítulo em Português: Deposição e decomposição de serapilheira em períodos de pastejo e descanso de uma pastagem tropical sob pastejo rotativo.eng
riaa.ainfo.id1118259eng
riaa.ainfo.lastupdate2020-01-07
dc.identifier.doihttp://dx.doi.org/10.1590/0103-8478cr20190266eng
dc.contributor.institutionIsrael Oliveira Ramalho, UFRRJ; Claudia de Paula Rezende, CEPLAC, Itabela, BA; José Marques Pereira, CEPLAC, Itabela, BA; Camila Almeida dos Santos, UFRRJ; Rafael Cassador Monteiro, UFRRJ; BRUNO JOSE RODRIGUES ALVES, CNPAB; Isabel das Neves Oiticica de Carvalho, BOLSISTA DA EMBRAPA AGROBIOLOGIA; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; ROBERT MICHAEL BODDEY, CNPAB.eng
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