Passar para o conteúdo principal

page search

Displaying 673 - 684 of 800
Journal Articles & Books
Novembro 1997

Cette étude est un document de synthèse dont l’objectif est de contribuer au développement d’une approche des SADA centrée sur le consommateur comme acteur autonome. Après un bref rappel sur la faible place qu’occupe le consommateur urbain africain dans les politiques, programmes et recherches…

Journal Articles & Books
Novembro 1996
Journal Articles & Books
Novembro 1996

La principale thèse de cet ouvrage est la structure des filières de commercialisation des vivres en Afrique subsaharienne qui, en fait, ne dépend que de deux facteurs, à savoir les caractéristiques de l’aliment en question et le niveau de développement du pays. Dans les pays africains, comme…

Journal Articles & Books
Dezembro 1995

Research scientists must have access to field records to ensure that their experimental treatments are neither masked nor affected by previous land usage. Research fields must be identified on the ground and accurate records kept of all operations and treatments carried out. Several procedures…

Conference Papers & Reports
Dezembro 1995

ILCA acknowledged the potential for increased animal agriculture in the subhumid zone of West Africa by establishing a research base at Kaduna in northern Nigeria. FulBe agropastoralists were selected at the target group because they own most of the cattle in the zone and cattle are the…

Journal Articles & Books
Novembro 1995

Tropical forest plantation resources

Journal Articles & Books
Dezembro 1994

Large areas of land are presently cleared of their natural cover, endangering the worldwide ecosystem. Land clearing, if necessary, should be carried out with great care after very careful consideration. Different land types require different clearing techniques. Often, soil needs to be…