Results in 1961-3 of the beef-production trial [see H.A. 34: 644] are given as 3-yr averages. Plots given NP in 1961 were also given N at 100 kg/ha in Apr. 1962 and May 1963. This treatment did not affect daily live-weight gain/steer, but increased number of steer days/ha and gain/ha on all grasses except Melinis minutiflora. Coastal Bermuda grass and Panicum maximum cv. Tanganyika appeared unsuited to the sandy loam soil used. Of the other 4 grasses, M. minutiflora performed worst in all respects. Digitaria decumbens gave lower gain/steer than Panicum maximum cv. Colonial Guinea and Hyparrhenia rufa, but the same number of steer days/ha (higher than H. rufa on manured plots) and the same gain/ha. Whether manured or not, D. decumbens was by far the most successful grass in competing with Paspalum notatum (undesirable here) and other weeds, which seriously invaded the originally pure stands of the other grasses. Manuring reduced P. notatum on Colonial Guinea, but increased it on H. rufa stands. It is suggested that large areas of Colonial Guinea pasture in Brazil, seriously threatened by P. notatum, might advantageously be re-established with D. decumbens. -W.M.S.R.