info:oai:icrisat:11233info:ofi/fmt:xml:xsd:journalBoubou DialloMBoubou Diallo, MAkponikpeP B IAkponikpe, P B IAbasseTAbasse, TFatondjiDFatondji, DAgbossouE KAgbossou, E KWhy is the spatial variability of millet yield high at farm level in the Sahel? Implications for research and developmentArid Land Research and Management (TSI)1532-4982June 20191-24article