In order to distinguish the impacts of technology adoption at the extensive margin from those at the intensive margin, in the empirical analyses we tested these hypotheses focusing on the differences among marginal adopters of tractor hiring services and nonadopters of similar characteristics....

In this paper, we briefly explore these three perspectives that can be useful in the future assessment of irrigation potential in Nigeria: (1) factor endowments, (2) challenges inherent in the tropics, and (3) experiences in a favorable area within Nigeria.