Tillering dynamics in massai grass fertilized with nitrogen and grazed by sheep.

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dc.contributorMarcos Neves Lopes, Pós-graduação - Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil; Magno José Duarte Cândido, UFC - Fortaleza, CE, Brasil; ROBERTO CLAUDIO FERNANDES F POMPEU, CNPC; Rodrigo Gregório da Silva, Instituto Federal de Educação, Ciência e Tecnologia do Ceará (IFCE) - Limoeiro do Norte, CE, Brasil; Luiz Barreto de Morais Neto, UFC - Fortaleza, CE, Brasil; Maria Socorro de Souza Carneiro, UFC - Fortaleza, CE, Brasil.
dc.creatorLOPES, M. N.
dc.creatorCÂNDIDO, M. J. D.
dc.creatorPOMPEU, R. C. F. F.
dc.creatorSILVA, R. G. da
dc.creatorMORAIS NETO, L. B. de
dc.creatorCARNEIRO, M. S. de S.
dc.date2016-11-30T11:11:11Z
dc.date2016-11-30T11:11:11Z
dc.date2016-11-30
dc.date2016
dc.date2017-02-23T11:11:11Z
dc.date.accessioned2026-07-01T00:19:53Z
dc.descriptionTo evaluate the tillering dynamics of massai grass under rotational sheep stocking and fertilized with nitrogen (control - 0; 400; 800 and 1200 kg ha-1 year-1), this study was carried out, in a completely randomized design with repeated measures over time. The mob-grazing technique was applied to perform the grazing by employing groups of animals for rapid defoliation. The tiller appearance, survival and mortality rates, tiller biomass, and green/dead tillers ratio, have presented increase responses to nitrogen levels, with the three rates and the tiller biomass varying between evaluation periods. There was a quadratic response for the tiller flowering rate, population density of vegetative and reproductive tillers, reaching maximum values (0.051 tiller 100 tiller-1 day-1; 4,818 and 35 tillers m-2, respectively) under the nitrogen levels of 613.5; 993.5 and 623.9 kg ha-1 year-1, respectively. For the tiller flowering rate and population density of reproductive tillers, it was verified a fluctuation between periods. The nitrogen fertilization promotes positive changes in tillering dynamics of massai grass, allowing the use of up to 800 kg ha-1 year-1 for maintaining the pasture stability. The tillering demography of the forage had varied little between assessment periods.
dc.identifierBioscience Journal, v. 32, n. 2, p. 446-454, Mar./Apr. 2016.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1057490
dc.identifier.urihttp://hdl.handle.net/123456789/401984
dc.languageeng
dc.rightsopenAccess
dc.subjectMassai grass
dc.subjectTillering stability index
dc.subjectTiller survival rate
dc.subjectEcofiosiologia vegetal
dc.subjectPerfilhamento
dc.subjectPanicum infestum
dc.subjectCapim massai
dc.subjectMassa de forragem
dc.subjectPlant developmental stages
dc.subjectPastejo
dc.subjectOvino
dc.subjectGramínea forrageira
dc.subjectConsorciação de cultura
dc.subjectPanicum Maximum
dc.subjectSheep
dc.subjectNitrogen fertilizers
dc.titleTillering dynamics in massai grass fertilized with nitrogen and grazed by sheep.
dc.typeArtigo de periódico

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