info:oai:icrisat:1887info:ofi/fmt:xml:xsd:journalBationoABationo, ANtareB RNtare, B RRotation and nitrogen fertilizer effects on pearl millet, cowpea and groundnut yield and soil chemical properties in a sandy soil in the semi-arid tropics, West AfricaJournal of Agricultural Science1469-51462000134277-2843article