Avaliação da densidade populacional de perfilhos dos capins Marandu e Piatã submetidos à adubação com cama de frango e esterco de bovinos confinados

The aim of this study was to evaluate the population density of tillers from Brachiaria brizantha cv. Marandu and cv. Piata, submitted to fertilization with chicken litter and confined cattle manure. The experiment was carried out in the experimental field of Faculdades Unidas do Vale do Araguaia, in a randomized block design in a 2x2x2 factorial scheme, with Marandu and Piata, fertilized with chicken litter and cattle manure and doses 0 and 2.5 t.ha-1 , with four repetitions. When the height targets of 25 (Marandu) and 30 (Piata) cm were reached, cuts were made, then sampling of the population density of tillers was performed, counting the total number of tillers inside the pvc frame of 1.00 x 0.25 m. The cultivars used showed variation in the population density of tillers. Organic fertilization had an effect on the cutting interval. It is recommended the fertilization with chicken litter on the pastures to reduce the grazing interval.