2026-06-27http://hdl.handle.net/123456789/147581Presents and discusses the effects of animal power use for improved soil surface drainage on food and feed production on the vertisols of the Ethiopian highlands. Examines the on-farm technology validation programme at ILCA; describes crop/livestock interactions in these vertisol areas; highlights the seasonal pattern of draft oxen use; and assesses the economic impact of animal power use for surface drainage.Limited Accesshighlandsvertisolsanimal powerdrainagemixed farmingeconomic aspectsfood productionfeed productionfarm implementsConference Paper