Gutierrez, G.2007-11-131999-03-082007-11-131979http://hdl.handle.net/10625/22660French version available in IDRC Digital Library: Caqueza a fait d'huileSpanish version available in IDRC Digital Library: Frutos de una experiencia investigativap. 18-19enAGRICULTURAL RESEARCHNEW TECHNOLOGYMAIZEON-FARM RESEARCHSMALLHOLDERSCOLOMBIAJournal Article