info:oai:icrisat:5441info:ofi/fmt:xml:xsd:journalKamaraAlpha Y.Kamara, Alpha Y.EkelemeFridayEkeleme, FridayOmoiguiLucky O.Omoigui, Lucky O.AheigbeHakeem A.Aheigbe, Hakeem A.Phosphorus And Nitrogen Fertilization Of Soybean In The Nigerian SavannaExperimental Agriculture20111-10article