Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Bioresource Technology 1002-1013 Solid urban wastes Composting Stabilization Inorganic nitrogen Sub-Saharan Africa 2010 fdi:010048390 ENG Bioresource Technology 0960-8524 ISI:000271664600025 3 10.1016/j.biortech.2009.08.101 https://www.documentation.ird.fr/hor/fdi:010048390 https://www.documentation.ird.fr/intranet/publi/2009/12/010048390.pdf 101 Horizon (IRD) The effect of raw materials and their proportions in initial mixtures on organic matter (OM) stabilization and nitrogen (N) availability during pit composting in Sub-Saharan Africa was assessed using biochemical fractionation and laboratory incubations to characterize composts sampled throughout the composting process. Stabilization of OM occurred more rapidly in mixtures with slaughter-house wastes, it was progressive in mixture with household refuses while tree leaves compost remained unstable. Carbon mineralization from compost samples was positively correlated to water soluble and hemicellulose-like organic fractions. Mixtures containing large proportions of household refuses reached the highest stability and total N but available N remained weak. Slaughter-house wastes in the initial mixtures made possible to reach good OM stabilization and the largest N availability. The nature of initial mixing influenced composting parameters, OM stabilization and N availability. it is suggested mixing household refuses and slaughter-house wastes with tree leaves to reach better amending and fertilizer qualities of composts. 068 ; 076 UR210 Burkina Faso