General papers.- Alleviating fertilizer policy constraints to increased fertilizer use and increased food production in West Africa.- Alleviating fertilizer supply constraints in West Africa.- Alleviating fertilizer technology transfer constraints.- Climatic constraints to crop production and fertilizer use.- Alleviating soil fertility constraints to food production in West Africa: Efficiency of nitrogen fertilizers applied to food crops.- Fate and efficiency of sulfur fertilizer applied to food crops in West Africa.- Overcoming soil fertility constraints to crop production in West Africa: Impact of traditional and improved cropping systems on soil fertility.- Management of fertilizer research data: General concepts.- Overcoming soil nutrient constraints to crop production in West Africa: Importance of fertilizers and priorities in soil fertility research.- Country papers.- Utilisation efficace des engrais azotés pour une augmentation de la production vivrière: L’expérience du Burkina Faso.- Utilisation efficace des engrais azotés pour une augmentation de la production vivrière: L’expérience de la Côte d’Ivoire.- Efficient fertilizer use for increased crop production: The Gambian experience.- Efficient fertilizer use for increased crop production: The Ghana experience.- Efficient fertilizer use for increased crop production: Use of phosphorus fertilizers in concretional soils of northern Ghana.- Efficient fertilizer use for increased crop production: The Liberia experience.- Efficient fertilizer use for increased crop production: The humid Nigeria experience.- Efficient fertilizer use for increased crop production: The sub-humid Nigeria experience.- Alleviating soil fertility constraints to increased crop production in West Africa: The experience in theSahel.- Role of manures and crop residue in alleviating soil fertility constraints to crop production: With special reference to the Sahelian and Sudanian zones of West Africa.- Utilisation efficace des engrais pour accroître la production végétale: Efficience de l’urée apportée sur maïs (Senegal).- Efficient fertilizer use for increased crop production: The IFDC- Africa experience in Togo.