ISRIC colleague Johan Leenaars will be in St. Louis, Sénégal, from June 9-12 to contribute to the start of an experimental campaign to validate newly developed site-specific, multi-nutrient fertiliser products on 360 farms. These new fertilisers, containing N, P, K, S, Zn, Cu and B, have been produced by OCP Africa for irrigated rice farming in the Senegal river valley and delta in Senegal, and the Office du Niger in Mali.