![]() | PRA field manual Auteur(s) : Barham, J. G Sullivan, A. J University of Florida | Partager |
![]() | On-farm experimentation Auteur(s) : Hammerton, John L Lauckner, F. B Caribbean Agricultural Research and Development Institute | Partager |
![]() | Incorporando las ciencias sociales a la investigaciâon agricola Auteur(s) : Hildebrand, Peter E Instituto de Ciencia y Tecnologâia Agrâicolas (Guatemala) | Partager |
![]() | Generando tecnología para agricultores tradicionales Auteur(s) : Hildebrand, Peter E Instituto de Ciencia y Tecnología Agrícolas (Guatemala) | Partager |
![]() | Study of soil characteristics as developed in a grass mulch system of vegetable cultivation in Jamaica Auteur(s) : Davis, Malcolm S | Partager |