Water is scarce and pivotal for the Sahel, not only for increasing the productivity for millions of small-scale farmers but also for countering loss of arable land resulting from erosion and warming temperatures. A major barrier to the use of water in the Sahel is the lack of infrastructure and technologies – 45 percent of the population do not have access to water, and only 2 percent of arable land is irrigated (OECD, 2022).

This collection of posters from the TAP-AIS project illustrates key achievements of the project towards strengthening national agricultural innovation systems (AIS) in Africa (Burkina Faso, Eritrea, Malawi, Rwanda, Senegal), Latin America (Colombia), Asia and the Pacific (Cambodia, Lao PDR, Pakistan). For each of these nine countries, and for their respective regions, the posters provide: i) thematic focus and context; ii) constraints in the AIS; iii) capacity development interventions; iv) outcomes; v) the way forward.