Josilene da Silva Trindade
Abstract:
Aiming to evaluate the bromatological composition and mass production of millet (Pennisetum glaucum (L.)) at different sowing densities and managed at two cutting heights, a field experiment was carried out at Santa Rosa do Rochedo Farm, Federal University of Goiás, Jataí Campus, from March to July 2012 (off season) after soybean harvest. The experimental design was randomized blocks in factorial arrangement (3x2) with three sowing densities (10, 15 and 20 kg.ha-¹) and two cutting heights (50 and 70 cm). Using the SAS data analysis version 9.2 program considering the effect of density and block on the plot and height in the subplot. In the comparison of means, the Tukey test was performed at 5% probability. Sowing density influenced (P <0.05) CP 13.98, 13.07 and 12.73% for the densities 10 and 15 and 20 kg.ha-¹ respectively. The height of cut influenced (P <0.05) in the bromatological composition and the productions when comparing a cut of each height, lower NDF (60.3%), ADF (35.7%) and higher percentage of MM ( 8.8%) and CNF (15.5%) were observed at the cutting height 50 cm. There was no (P> 0.05) effect of sowing density or cutting height on the total yield of the experimental period. Due to the better nutritional quality, with longer pasture utilization and lower seed expenditure at planting, it's possible to use millet for grazing in the Goiás Southwest, at sowing density of 10 kg.ha-¹ with cutting at 50 cm high.
