02157nam a2200325 a 450000100080000000500110000800800410001910000200006024501200008026002590020052009860045965000230144565000110146865000240147965000250150365000190152865000130154765000090156065000250156965000230159465300260161765300310164370000260167470000230170070000170172370000250174070000200176570000220178570000240180720960762019-09-23       2018    bl uuuu     u00u1 u    #d1 aLOPES, B. K. M.  aCaracterísticas morfogênicas do capim-tamani irrigado sob doses de adubação nitrogenada.h[electronic resource]  aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal. Goiânia: Sociedade Brasileira de Zootecnia, 2018. 5 f.c2018  aAbstract: The objective of this study was to evaluate the effect of nitrogen fertilization on tamani-grass managed under cut. The experiment was carried out in the city of Fortaleza-CE, in the year 2017, in a randomized complete block design. The treatments consisted of increasing doses of 0; 100; 300; 600 and 1,200 kg N ha-1, being the experimental unit plot of 2.5 x 5 m, cultivated with tamani-grass. Leaf elongation rate and stem elongation rate behaved in a linear positive manner, with increments estimated to be 0.00141 and 0.00008643 cm tiller-1 to day-1, making 2.20380 and 3.8958 for the doses of 0 and 1200 kg N ha-1 respectively. The total senescence rate was not significant for the nitrogen doses, presenting 0.38 ± 0.18. The leaf life span responded in a linear negative fashion, with reductions estimated to be 0.00723 days. Nitrogen allowed for higher growth and forage biomass of the tamani-grass, handled under cut, without any increase of senescent material.  aBiomass production  aBrazil  aMegathyrsus maximus  aNitrogen fertilizers  aSemiarid soils  aBiomassa  aDose  aGramínea Forrageira  aNutrição Vegetal  aEfeito do nitrogênio  aTaxa de alongamento foliar1 aVASCONCELOS, E. C. G.1 aCÂNDIDO, M. J. D.1 aLOPES, M. N.1 aCONRADO, J. A. de A.1 aOLIVEIRA, M. M.1 aALMEIDA, B. P. de1 aPOMPEU, R. C. F. F.