Soil fertility depletion has been described as the single most important constraint to food
security in West Africa. Over half of the African population is rural and directly dependent on …

West Africa is poorly endowed when it comes to soil fertility. Unlike for example the Rift
Valley area, west African soils never enjoyed volcanic rejuvenation. At low agricultural …

The beneficial effects of combined organic and inorganic nutrients on soil fertility have been
repeatedly shown, yet there are no guidelines for their management. Organic materials are …

Judged by their negative nutrient balances, low soil cover and low productivity, the
predominant agro-pastoral farming systems in the Sudano-Sahelian zone of West Africa are …

Success in long-term agricultural production in resource-poor farming systems relies on the
efficiency with which nutrients are conserved and recycled. Each transfer of nutrients across …

Many semiarid regions of Sub‐Saharan Africa (SSA) are experiencing vast increases in
human population pressure and urbanization. These augment the demand for agricultural …

Crop**, when possible, tends to become more important than animal production because,
in general, it can feed more people per area unit in terms of calories and protein. In such …

The increasing recognition of soil fertility depletion as the main biophysical factor limiting
crop production in many African smallholder farms has raised interest in using data from …

Effective natural resource management requires interrelated technical practices and social
arrangements that are appropriate to a region's biophysical characteristics and that address …

Global agriculture is now at the crossroads. The Green Revolution of the last century is
losing momentum. Rates of growth in food production are now declining, with land and …