acidic soils Adesina and Mnangagwa African Development Bank (AfDB) AGRA Akinwumi Adesina Alliance for green revolution africa Bill & Melinda Gates Foundation Boko Haram killing seeds farmers cellphone geolocation Nigeria Chemical fertilizers in Nigeria former Minister of Agriculture Nigeria France Funders of AfDB. Germany GMO cassava GMO cow peas GMO Maize GMO rice GMOs in Africa Imperialism in African agriculture Japan Nigerian agriculture Pesticide resistance Rockefeller Foundation rural farmers Nigeria soil infertility traditional seed farmers being killed US Zimbabwe food sovereignty Seed dependency in Africa