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A Kolwezi, les sols sont generalement de texture sableu se Leurs richesse s chimique s se situe nt a un niveau tres bas pour tous les elements nutritifs avec une incidence directe sur les rend ements des cultures. Afin d’evaluer l’impact du compost menager sur la restauration de la fertilite des sols maraichers de Kolwezi, un essai conduit en split plot avec deux varietes de tomate (Tanya et Tengeru) et trois doses (20, 25 et 30 t.ha -1 ) de compo st menager appliquees seules et/ou combinees a 250 kg ha -1 de NPK en comparaison d’un temoin sans fertilisation a ete installe dans deux sites maraichers (Musompo et Mwangeji). Les dechets collectes aupres de 100 menages ont ete tries et peses en vue de de terminer la composition physique d’une poubelle et la part biodegradable a ete compostee. Pour renseigner la valeur agronomique du compost l’analyse chimique a ete effectuee. De cette etude, il a ete revele qu’en moyenne, une poubelle a Kolwezi est compos ee de plus de 50 % de dechets degradables dont le compost qui en est issu est un reservoir de N, P, K et autres elements indispensables a la culture Appliquees sur un sol percu pauvre et confirme par les analyses chimiques, les doses de compost ameliorent la fertilite de sol consecutivement le rendement de la tomate . 11,4 t.ha 1 contre 11,7 t.ha 1 obtenu respectivement aux apports de 30 t.ha -1 de compost et 30 t.ha -1 + 250 kg.ha 1 de NPK, suppose que le compost issu des dechets menag er s serait utilise en l egume cult u re sans etr e combiner aux engrais mineraux L ’application supplementaire de 250 kg NPK induit in evitablement une baisse de la profi tabilite ainsi , 20 t.ha -1 de compost est recommand able L’analyse microbienne et l’usage de compost menager sur l es legumes feuilles seraient une seconde phase de l’etude. Mots cles : Compost de d echet menager, restauration de sol , gestion, Kolwezi. English Title: Effects of household composts on soil properties and productivity of  vegetable crops: The case of tomato ( Lycopersicon esculentum Mill) In Kolwezi, the soils are generally sandy in texture. Their chemical richness is at a very low level for all nutrients with a direct impact on crop yields. In order to assess the impact of household compost on restoring the fertility of market garden soils in Kolwezi, a spl it plot trial with two tomato varieties (Tanya and Tengeru) and three doses (20, 25 and 30 t.ha -1 ) of household compost applied alone and/or combined with 250 kg ha -1 of NPK compared to a control without fertilizer was set up in two market garden sites (Musompo and Mwangeji). The waste collected from 100 households was sorted and weighed to determine the physical composition of a bin and the biodegradable part was composted. To inform the agronomic value of the compost, chemical analysis was carried out. From this study, it was revealed that on average, a bin in Kolwezi is composed of more than 50%  degradable waste, from which the compost that is produced is a reservoir of N, P, K and other elements essential for cultivation. Applied on a soil perceived as poor and confirmed by chemical analyses, the compost doses improve soil fertility as a result of the tomato yield. 11.4 t.ha -1 against 11.7 t.ha -1 obtained respectively with the inputs of 30 t.ha -1 of compost and 30 t.ha -1 + 250 kg.ha-1 of NPK, supposes that the compost from household waste would be used in legume-cultivation without being  combined with mineral fertilizers. The additional application of 250 kg NPK inevitably leads to a decrease in profitability, so 20 t.ha -1 of compost is recommended. Microbial analysis and the use of household compost on leafy vegetables would be a second phase of the study. Keywords : Household waste compost, soil restoration, market gardening, management, Kolwezi.

international journal of biological and chemical sciences

Effets des composts ménagers sur les propriétés du sol e t sur la productivité des cultures légumières : Cas de la tomate (&lt;i&gt;Lycopersicon esculentum&lt;/i&gt; Mill)