Comparison of up to ten carrot cultivars at various sites in a three-year period did not show that any cultivar consistently outyielded the others. Investigations at Samaru between 1969 and 1971 indicated that application of 100 kg. of N was beneficial, response to P was not consistent and there was no response to K or trace elements. Economics of production by peasant farmers is discussed and conclusions drawn that irrigated carrots, grown in the dry season, could be very profitable. No successful control was found for blight (Alternaria dauci) which severely inhibits the production of a wet season crop.