Low-cost modifications of the traditional Ethiopian tine plough for land shaping and surface drainage of heavy clay soils: Preliminary results from on-farm verification trials

Describes modifications to the traditional ox-drawn ard plow (maresha) for use in the construction of terraces for soil conservation and of raised beds and furrows to facilitate drainage on heavy clay soils together with results of on-station and on-farm tests. Both modifications can be made by village craftsmen.