De nombreux agriculteurs africains pratiquent des formes d'agriculture potentiellement qualifiables de "?biologiques?". Pourtant, la capacité de l'agriculture biologique à répondre aux enjeux de la sécurité alimentaire en Afrique est encore mal connue, car il existe peu de références expérimentales disponibles dans cette région. L'élicitation probabiliste est une méthode permettant de rendre compte de manière précise des connaissances d'experts sur une ou plusieurs quantités d'intérêt, et de décrire les niveaux d'incertitude associés.
The main goal of the study is to quantify the effects of a) change in nitrogen fertilization rate, b) adjustment of sowing date, c) implementation of new cultivars, and d) supplementary irrigation on maize cropping systems across six African countries including Ghana, Nigeria, Kenya, Malawi, Ethiopia and Burkina Faso. For this purpose, 30 years (1980-2010) of climate data are used as well as soil and management information obtained from global datasets at 0.5° x 0.5° spatial resolution.
Xanthomonas Wilt of Banana (BXW) is a complex problem in the African Great Lakes Region that is affecting the livelihoods of millions of smallholder farmers. Since the first disease reports from Uganda and the Democratic Republic of Congo in 2001, BXW has been studied widely. The majority of these studies focus on the technological or biophysical dimensions, while aspects and influence of socio-cultural, economic and institutional dimensions only recently started to gain attention.
Atentos a la dinámica que han seguido los mercados internacionales de productos agrícolas, y con el interés de contribuir al debate, al análisis y a la toma de decisiones informadas para hacer frente al complejo problema de la volatilidad de precios, nos complace presentar este primer número del Boletín interinstitucional CEPAL-FAOIICA, que forma parte de la iniciativa que nuestras instituciones vienen emprendiendo desde 2009 para elaborar, cada año, una publicación sobre las perspectivas de la agricultura y el desarrollo rural en América Latina y el Caribe.
In the Netherlands, agroforestry is still in its infancy with silvoarable agroforestry systems being the most rarely adopted form of agroforestry. In order to reach a broader adoption of agroforestry, many regulatory and practical obstacles have to be overcome. By using a systems innovation approach this paper show that this transition process can be facilitated and accelerated in a targeted manner. System innovations in agriculture are multi-objective changes on the technological, social, economic and institutional level.
La complexité des facteurs de la migration rurale en ASS rend impossible la prévision du nombre de personnes qui migreront et pourquoi, ni qui elles seront, ni où elles iront. Pourtant, il est possible d’explorer comment ce système complexe de forces interdépendantes pourrait évoluer, de prendre des décisions proactives et d’agir pour construire le futur. Il est peu probable que les migrants ruraux d’ASS soient dans une position favorable pour émigrer hors d’Afrique, ce qui pose un grand défi pour la prospérité future du continent : migration par nécessité ou par choix ?
The latest turmoil of production and price volatility in the global food sector has put agriculture back to the top of the development agenda. Population growth, changing consumer preferences, bioenergy demand and climate change are some of the huge challenges for agricultural production today and in the future. In the last decades, productivity has been constantly improved through the introduction of improved crop varieties and the greater use of mechanization, irrigation, chemical fertilizer and pesticides.
The case studies reported here form part of ‘GENNOVATE: Enabling gender equality through agricultural and environmental innovation’; a qualitative comparative research to examine the gender dimensions of innovations – new agricultural and natural resource management technologies, institutions, and practices. Despite significant historical, socio-political and environmental differences, the five case studies in East Kalimantan, Indonesia, and the case from southwest Kyrgyzstan exhibit pronounced and rapid changes in the relationship between people and for forests
La revisión que se hace en este artículo aborda intereses de tres investigadores quienes, preocupados por analizar los sentidos de la dimensión ambiental y la institucionalidad, deciden hacer algunos aportes frente al desarrollo de capacidades sociales en lo que implicaría la consolidación del desarrollo local, particularmente, en aquellos territorios en los que ésta presenta una crisis, no sólo en sus ecosistemas, sino en la gestión institucional para protegerlos y evitar daños irreparables.
Food sustainability transitions refer to transformation processes necessary to move towards sustainable food systems. Digitization is one of the most important ongoing transformation processes in global agriculture and food chains. The review paper explores the contribution of information and communication technologies (ICTs) to transition towards sustainability along the food chain (production, processing, distribution, consumption). A particular attention is devoted to precision agriculture as a food production model that integrates many ICTs.