MASSA DE FORRAGEM EM PASTAGENS CULTIVADAS E CONSORCIADAS COM LEGUMINOSAS, ESTABELECIDAS COM E SEM QUEIMA DA VEGETAÇÃO SECUNDÁRIA

It was evaluate the mass of forage on pasture of  B. brizantha and B. humidicola grass, with the association of legums  Arachis pintoi , Cratylia argentea and Leucaena leucocephala with and without burning. Three pastures were tested for each experiment: 1. QB - B. humidicola + B. brizantha cv. Marandu. 2. QBAL - B. humidicola + B. brizantha + A. pintoi cv. Amarilo + L. leucocephala cv. Cunninghan . 3. QBAC - B. humidicola + B. brizantha + A. pintoi cv. Amarilo + C. argentea. The experiments took place from April 15th of 2002 to the 18th of March of 2003. The samples, in the plots of grasses in six places, while in the consorted, twelve places. There were seasonal differences in the total mass, marandu grasses leaf mass, of Arachis pintoi, species of capoeira and dead material. As to the methodology of area preparation, all the response variables were differents. The total mass, leaf and stem of B. brizantha and dead material were greater in the pasture of grasses (QB). The mass of leaf and stem of B. humidicola and Arachis pintoi were greater in the pasture of QBAL and the mass of capoeiras species was greater in the pasture of QBAC. KEY WORDS: B. humidicola, B. brizantha, Arachis pintoi, burning.