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From waste to wealth: uses of agricultural residues in Africa (A review)RESUMEIntroduction. This summary report provides an overview of the state of the art regarding the possible uses of crop residues for populations in the sub-Saharan agricultural sector with a view to building their resilience in the face of socio-economic and climate-related challenges. Literature. Crop residues are present in large quantities on farms and represent real assets for the resilience and sustainability of agricultural systems. Unfortunately, due to the lack of transfer of scientific knowledge to farming practices and problems with the collection and processing of residues, many are underutilised. The main uses of crop residues for those involved in the agricultural sector are: Agronomic uses, with the production of biochar, compost and organic manure from crop residues to improve soil fertility. Zootechnical uses, with crop residues being used in animal feed and in the manufacture of bedding and shelters for animals. Finally, energy uses of crop residues with the production of briquettes; the manufacture of green charcoal, the production of natural biogas and the production of bioethanol. Conclusion. The wide availability and diverse uses of crop residues can contribute significantly to increasing the sustainability and resilience of agricultural systems in sub-Saharan countries. However, this requires the effective implementation of a system for educating stakeholders on the uses of crop residues. Sombénéwendé Rasmata Zoungrana 1*, Tionyélé Fayama2 |
