Developing the use of organic waste in gardening in Senegal: opportunities, constraints and risks | Développer l’Utilisation des Déchets Organiques dans la Culture Maraîchère au Sénégal: Opportunités, Contraintes et Risques
2014
Tounkara, S. | Zelem, M.C.
Within a context of demographic and urban growth, and taking ecological requirements into consideration, can urban horticulture be one of the solutions for managing urban waste? How can a process for developing the use of organic matter in peri-urban agriculture be implemented in truck farming in Dakar (Senegal), where agricultural endeavors are frequently undermined by constraints such as access to irrigation water, levels of population pressure and insecurity, and access to supply of organic matter? The physical environment creates a context for utilizing organic matter by truck farmers (i.e., market-gardeners). Many players are involved in this situation, and each brings different rationales and ideas for using the many types of organic matter potentially available for truck farming (compost from cow, horse, sheep, poultry, slaughter-house, or fish manure; groundnut by-products; clarification sludge; etc.). However, the demand for these organic wastes in other sectors has created a context of competition between truck farmers and these other sectors. Moreover, there are many constraints in using these wastes: their physical characteristics (thick granulometry and mud-like character; high heat of poultry and horse manures; etc.); availability; accessibility; poorly controlled urbanization; effects of seasonal variation; and so on. In addition, there are health risks to the population which must be better controlled. This is why, in spite of recommendations from scientists and NGOs, is it very difficult for truck-farmers to change their habits and use urban wastes as fertilizers on their peri-urban and urban farms.
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