The AB-Consult at College of Economics and Business Studies (CoEBS), Sokoine University of Agriculture (SUA), in collaboration with the University of Illinois at Urbana-Champaign, the University of Sussex, and OCP Tanzania, is conducting a cluster randomized controlled trial (RCT) to evaluate the impact of customized fertilizer recommendations based on plot-level soil testing on smallholder farmer investment, yields, profitability, and learning in selected villages in Tanzania. The study will involve administering structured household and plot-level survey questionnaires, conducting follow-up data checks, and collecting data on fertilizer use, input markets, and agrodealer stock availability in Mbeya, Njombe, and Iringa.
