Este libro tiene como propósito servir como texto guía para la formación en extensión agropecuaria de los profesionales de las Ciencias Agrarias de la Universidad de Antioquia y como material de referencia para todas las universidades del país que hacen parte de la Red Nacional de Extensión Rural (RENER), al igual que para los profesionales en servicio que quieren mejorar sus capacidades en extensión agropecuaria, en un nuevo escenario de construcción de paz que requiere ajustes en la preparación del talento humano para apoyar la implementación del recientemente creado servicio de
Smallholder farmers in developing countries often suffer from high risk and limited market access. Contract farming may improve the situation under certain conditions. Several studies analyzed effects of contracts on smallholder productivity and income with mixed results. Most existing studies focused on one particular contract scheme. Contract characteristics rarely differ within one scheme, so little is known about how different contract characteristics may influence the benefits for smallholders.
This paper examines the impact of mobile phones on farmers’ marketing decisions and prices they receive based on household- and village-level information collected from rural Ethiopia. It explains the reason for the weak impact of mobile phones observed in this study as well as in previous studies in Africa. We argue that even though many farmers participate in information searching, the number of farmers who use mobile phones for information searching is very small.
Agricultural expansion areas in the Egyptian deserts are one of the main governmental inputs that increased during the last decade. Evaluation of such agricultural lands helps decision makers in strategic planning of future projects. The present review paper highlights recent research studies conducted to evaluate some of the newly agricultural expansion areas in the Egyptian deserts using Geographic Information Systems (GIS) integrated with Remote Sensing technologies considering the main evaluation criteria and constraints.
This paper analyses a biotechnology-focused project which aims to promote the development and adoption of tissue culture bananas by small-scale farmers in Kenya. The paper highlights the generation of several important narratives that are used to justify the development and dissemination of this technology. First, a disaster narrative, a series of claims regarding rural livelihoods and banana production in Kenya, is generated. This creates a political and technical space for the creation of a new science that can solve these problems.
Communication is essential to making biotechnology and genomics relevant to developing countries and poor people. Few would disagree with that. But many are sceptical about public relations efforts to impose inappropriate technological ‘solutions’ on developing countries. This paper is a partial reflection on how PR and advocacy ‘mixes’ can be understood and whether they can be useful to innovation in developing country contexts.
L’article analyse, à l’aide de la méthode ImpresS conçue par le Cirad, un processus d’innovation impulsé par les utilisatrices d’un équipement de transformation : le décortiqueur et blanchisseur de fonio (Digitaria exilis Stapf) en Afrique de l’Ouest. L’identification du système d’acteurs et le récit chronologique du processus d’innovation ont été mobilisés pour caractériser les mécanismes et les conditions qui expliquent la réussite de cette innovation.
On observe depuis une vingtaine d'années l'émergence de bassins de production maraîchère dans le Sahara algérien par la mobilisation des eaux souterraines profondes, en marge des oasis traditionnelles. Dans la vallée du Souf, les agriculteurs se sont orientés vers la culture de la pomme de terre, irriguée par des petits pivots artisanaux. L'objectif de l'article est d'analyser le processus d'innovation ayant permis l'émergence et la diffusion du pivot artisanal.
L’agriculture oasienne reflète l’ingéniosité d’une société ayant pu vaincre un milieu hostile et défavorable au peuplement. En Algérie, cette agriculture traditionnelle a été bouleversée par l’introduction des emplois non-agricoles, qui ont perturbé la stratification sociale établie.