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Browsing by Authors Ay, P.
Showing results 1 to 5 of 5
| Issue Date | Title | Author(s) | | 1989 | Elasticities of demand for major food items in a root and tuber crops based food system | Nweke, F.I.; Okorji, E.C.; Ay, P.; King, D.J. |
| 1986 | On Farm Research Activities and Cooperation Possibilities : workshop organised by IRA - IITA - IDRC On Farm Research Project Team, Dec. 10 and 11 1986 | Institute of Agronomic Research; International Institute of Tropical Agriculture; IDRC; Ay, P.; Nounamo, L.; Foaguegue, A.; Mankolo, R.; Poku, J. |
| 1991 | Production costs in the yam based cropping systems of Southeastern Nigeria | Nweke, F.I.; Ugwu, B.O.; Asadu, C.L.A.; Ay, P. |
| 1991 | Production costs in the yam based cropping systems of Southeastern Nigeria | International Institute of Tropical Agriculture; Nweke, F.I.; Ugwu, B.O.; Asadu, C.L.A.; Ay, P. |
| 1987 | Progress report 1986-1987 / IRA - IITA - IDRC On Farm Research Project | Institut de la recherche agronomique; International Institute of Tropical Agriculture; Ay, P.; Nounamo, L.; Foaguegue, A.; Bernard, M.; Mankolo, R. |
Showing results 1 to 5 of 5
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