Olive Tuyishime grew up watching her parents work hard on their small farm in Butare, southern Rwanda, without seeing the full fruit of their labor. “We planted potatoes, cassava, bananas, and coffee, but we didn’t get the best results, probably because we didn’t use high-yield varieties or enough fertilizer—either inorganic or organic material—and we didn’t have enough knowledge about good agricultural practices,” she reflects. Because she was fascinated by agriculture, and particularly soil fertility, she decided to pursue a bachelor’s degree in crop production and horticulture.