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Industrial poultry farming is a booming sector in Africa. This activity generates a significant amount of manure that could be used to improve crop yields on low-productivity soils. We wanted to characterize the variability in the chemical composition of poultry manure and its ability to release mineral nitrogen when applied to soils compared to other organic sources of nutrients such as cattle manure and human feces. We conducted a survey in 79 poultry farms to characterize their practicesdoi:10.5539/jas.v12n3p95 fatcat:bqmwvn5m5jbtpm7nee25obvpli