A digital service provides tailored agronomic advice to cassava growers through various decision support tools (DST), including printable guides, a smartphone app, and SMS messages. The DST use a cloud-based prediction engine to extrapolate recommendations based on farmer inputs and predict responses to interventions. Printable guides offer simplified recommendations that can be printed for farmers, while the smartphone app allows extension workers to provide more granular, dynamic recommendations to farmers by collecting input data offline. The tools aim to help farmers better understand the interaction between agronomy and their local environment.