Mostrando ítems 1-10 de 952
Valuing traits of indigenous cows in Central Ethiopia
This research aimed at identifying and estimating the relative weight assigned to the preferred traits of indigenous cow population in the most dominant crop?livestock mixed production system in Central Ethiopia. A choice ...
Responding to the challenges of impact assessment of participatory research and gender analysis
Since the Green Revolution, the public-sector's agricultural research strategy for increasing food crop productivity has been explicitly based on the premise that technology can cross political and agro-climatic boundaries, ...
Intensification or extensification? Factors affecting technology use in peri-urban lowlands along an agro-ecological gradient in West Africa
The paper analyses whether the increased use of lowlands in proximity to urban centres in West Africa is associated with technological intensification or extensification. Technologies are typified in terms of their orientation ...
Nitrogen leaching and soil nitrate, and ammonium levels in an irrigated wheat system in northern Mexico
Nitrate leaching from agricultural soils can represent a substantial loss of fertilizer nitrogen (N), but a large variation in losses has been reported. We report N leaching losses under four N fertilizer treatments and ...