Produção E Composição De Milheto Utilizando Diferentes Fontes De Nitrogênio

Abstract

Were noted in this study the effects of increasing doses and different nitrogen sources in the production, chemical composition and the N contained in the shoots of millet forage conditions in the Bioma Cerrado. Two N sources (urea and Novatec), four doses (0, 40, 80 and 160 kg ha-1 ) and three cuts with four replicates totaling 32 experimental units were used. The cuts were made assessment when at least 50% of the plants reached 0.80 m in height. The variables analyzed were GMP, DMP, DM, CP, NDF, ADF and CN of all cuts. There was no significant interaction between the variables analyzed for sources and rates of N, N and cuts, cuts and sources of N and also the triple interaction sources, cuts and N. The dose of GMP was higher than the second and third (1691 and 1862 kg ha-1 , respectively) that differed from the first cut (1362 kg ha-1 ). The MS was statistically different from the third (15.44%) and similar cutting the first and second sections (12.30 and 13.08%, respectively). The CP content significantly in all courts where the first cut differed from the second cut and third cut differed from the others. The NDF and ADF differed between cuts, rising as the cuts progressed. The two N sources are suitable for supplying N to growing millet.