Abstract: An experiment was conducted over three years to determine the residual effects of different rates of farmyard manure on growth and yield of cold tolerant sorghum variety E1291. The trial was conducted on a sandy loam soil at the KARI-Lanet Research Centre. The manure levels were: 0, 5, 10, 15, 20, 30, 40 Mg ha-1 and inorganic fertilizer at the rate of 60 kg N and 30 kg P2O5 ha-1 applied in the first year. Grain yield increased up to 20 Mg ha-1 farmyard manure beyond which a decline was observed whereas, stover yield increased up to 30 Mg ha-1. Residual farmyard manure consistently produced better yields than inorganic fertilizer. Grain yield increases over inorganic fertilizer ranged from 7.2 to 12.6% and those for stover were 2.3 to 8.4%. Plant population increased by 0.8 to 11.3% and harvestable heads increased from 2.6 to 20%. These results have demonstrated that high and consistent yields may be produced from residual farmyard manure for three consecutive seasons after the initial application.