Panicum maximum is tolerant of shade and fire, but not to water logging or severe drought. It produces high yields of palatable fodder, responds well to manure and dies if continually grazed close to the ground and needs rest late in the growing season (FAO 2003). Cutting height as well as N fertilizer application influences the dry matter yield of herbage harvested from pasture swards (Olsen 1974, Tudsri et al. 2002, FAO 2003, Baatar 2008). The effect on grass productivity of differential cutting heights is conflicting. Langille and Warren (1961) and Clapp et al. (1965) have shown that increased yields can be obtained by lowering