International Fertilizer Development CenterInstitut d'économie ruraleDiamond, R.B.Traore, F.Henao, J.Sanogo, Z.Parish, D.H.2007-11-121991-04-012007-11-121989http://hdl.handle.net/10625/10799Text1 v. (unpaged)enFERTILIZERSPHOSPHATESSOIL IMPROVEMENTWEST AFRICACROP YIELDON-FARM RESEARCHFinal summary report to IDRC / Phosphate Fertilizers (IFDC / West Africa Project)IDRC Final Report