Canopy structure and forage nutritive value of elephantgrass subjected to different stocking rate and N fertilization in the “Mata Seca” ecoregion of Pernambuco

dc.creatorDourado, Diego Loiola
dc.creatorDubeux Junior, José Carlos Batista
dc.creatorMello, Alexandre Carneiro Leão de
dc.creatorSantos, Mércia Virginia Ferreira dos
dc.creatorLira, Mário de Andrade
dc.creatorFreitas, Erinaldo Viana de
dc.creatorApolinário, Valéria Xavier de Oliveira
dc.creatorSantos, Erick Rodrigo da Silva
dc.date2023-05-30T16:44:15Z
dc.date2023-05-30T16:44:15Z
dc.date2019-04-15
dc.date.accessioned2023-09-27T21:57:34Z
dc.date.available2023-09-27T21:57:34Z
dc.identifierDourado, D. L.; Dubeux Junior, J. C. B.; Mello, A. C. L.; Santos, M. V. F.; Lira, M. A.; Freitas, E. V.; Apolinário, V. X. O. and Santos, E. R. S. 2019. Canopy structure and forage nutritive value of elephantgrass subjected to different stocking rate and N fertilization in the “Mata Seca” ecoregion of Pernambuco. Revista Brasileira de Zootecnia 48:e20180134
dc.identifier1806-9290
dc.identifierhttps://locus.ufv.br//handle/123456789/30980
dc.identifierhttps://doi.org/10.1590/rbz4820180134
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8968671
dc.descriptionThe objective was to evaluate the effect of three stocking rates (2, 3.9, and 5.8 animal units ha−1) and three fertilization levels (0, 150, and 300 kg N ha−1 yr−1) on herbage mass and nutritive value of elephantgrass (Pennisetum purpureum Schum.) cv. IRI-381. The experiment was conducted from May to August of 2009 and 2010 in Itambé, PE, Brazil, during the rainy season. Treatments were allocated in a split-plot arrangement in a completely randomized block design. The variables measured included leaf mass (pre- and post-grazing), botanical composition, soil cover, leaf area index, light interception, leaf angle, and concentrations of dry matter, organic matter, N, and in vitro digestible dry matter. When fertilized with 300 kg N ha−1 yr−1, leaf mass reached 18,560 kg ha−1. Leaf area index decreased with increasing stocking rate. The relationship between sward height and light interception was R2 = 0.0126. Increased stocking rate resulted in greater contribution of signalgrass [Brachiaria decumbens (Stapf.) R.D. Webster] in the botanical composition, with a contribution up to 29% in 2010. Elephantgrass nutritive value is directly affected by the fertilization levels and stocking rate, with highest nutrient concentrations observed with 2 AU ha−1 and 300 kg N ha−1 yr−1
dc.formatapplication/pdf
dc.languageeng
dc.publisherBrazilian Journal of Animal Science
dc.relationR. Bras. Zootec., 48:e20180134, 2019
dc.rightsCreative Commons Attribution License
dc.subjectgrazing
dc.subjectlivestock
dc.subjectnitrogen
dc.subjectpasture
dc.subjectPennisetum purpureum
dc.titleCanopy structure and forage nutritive value of elephantgrass subjected to different stocking rate and N fertilization in the “Mata Seca” ecoregion of Pernambuco
dc.typeArtigo


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