Economic analysis of a Service Provider model for scaling smallholder farm mechanization in Southern Africa: a case study from Zimbabwe

Smallholder agriculture in sub-Saharan Africa remains constrained by limited access to farm power, high labour requirements, and low machinery ownership. This study evaluated the labour-saving potential, financial viability, client reach, and scaling constraints of a Service Provider (SP)-based mechanization model in Masvingo, Zimbabwe. SPs received a starter package comprising a two-wheel tractor, a trailer, a no-till planter, and a thresher. Machinery was field-assessed, while one SP’s business was monitored over 42 months using records of services, income, costs, clients, repairs, and spare-parts use. The no-till planter reduced crop establishment labour requirements by 58–65% and total crop production labour by 14–24% compared with conventional ox-drawn practices, without significantly affecting maize yield. The thresher achieved upto 100% maize shelling efficiencies and 95% labour saving. The SP served 136 farmers and two groups, generating US$9318 gross revenue. Returns on investment were 379% with a 50% subsidy and 167% without subsidy. Transport generated most revenue, while demand for no-till planting was negligible. Women comprised 50% of clients. The findings show that SP-based mechanization can expand access to farm power without individual machinery ownership. Policies should support affordable machinery, financing, after-sales services, and technologies aligned with local farming practices.