The study examined costs and returns of crop production under Jibiya Irrigation Project as well as problems that were militating against the achievement of the Project objectives. 120 farmers were randomly sampled and interviewed. The data were analysed using descriptive statistics and farm budgeting model. The average age and land holding of the farmers were 42 years and 0.8ha, respectively. Majority of the farmers were married and can read and write. Most of them had between 0-5 and 0-3 children and dependants, respectively. Their average costs of crop production were N 94,513.61, N 90,969.20 and N 3,544.41 per hectare of total, variable and fixed cost, respectively. Whereas the total revenue, gross margin and net farm income they obtained were N 190,329.36, N 99,360.16 and N 95,815.75 per hectare, respectively. They enjoyed a net return on investment of N 1.01. There were many problems facing the farmers, which if not addressed adequately, will not only significantly reduce the productivity of crop production but will also discourage farmers from farming under the Project. The performance of the farmers, though good, could be improved if there is adequate funding of the Project; inputs are made readily available to farmers at subsidized rate and in good time and the farmers offer hands in ensuring the safety and security of the Project's facilities.

The study investigates willingness to pay for extension service delivery among crop farmers in Katsina State, Nigeria. Primary data from a cross section of 260 farmers through multi stage random-sampling techniques were used. The data were analysed using descriptive statistics and probit model. The results from the socio-economics of the farmers show that majority of the farmers (76.4%) fall within the productive age of 31-50years. The crop farmers were male dominated (86.4%). The result from the probit analysis shows that the Age of the farmers were negatively significant (P<0.01) on the willingness to pay. This implies that the older the farmer the lesser the likelihood to pay for extension service. Farmer's income and proportion of commodity sold were positively significant (P<0.01). This implies that as the income of the farmers increase the more likelihood the farmer pay for the extension service. Also, as the proportion of commodity sold increase the more likelihood the farmer to pay for extension service. Land ownership is negatively significant (P<0.10), while the household size is negatively significant (P<0.05). These indicate that owning a land reduce the likelihood of payment for the extension service delivery. In addition, as the household size increases the likelihood to pay for extension service delivery decrease. The study concludes that farmers are willing to pay for extension service and also recommends that efficient machinery should be put in place on marketing of farmer's produce. Government should encourage Young people into crop farming.