Utilisation des déchets humains recyclés pour l’augmentation de la production du maïs (Zea mays L.) sur un ferralsol du sud-est de la RD Congo

Abstract

Objectif : La population des pays en développement est en pleine expansion, entrainant une augmentation des besoins alimentaires et de la production des déchets et effluents. Le recyclage de déchets participe à la lutte contre la pauvreté et à l'assainissement environnemental. Cette étude a été menée en vue d'évaluer les effets des doses croissantes des déchets humains recyclé.sur le comportement du maïs. Méthodologie et résultats : L'expérimentation a été conduite à la ferme Kassapa de l'Université de Lubumbashi (UNILU) selon un dispositif split splot comprenant 3 répétitions. Les traitements comprenaient 3 variétés de maïs (Katanga, Unilu et Babungo) et 5 doses des fèces humaines collectées sur les cités universitaires et compostées à 14 mois (témoin ou contrôle, 1 t.ha -1 , 10 t.ha -1 , 20 t.ha -1 , 30 t.ha -1 et 50 t.ha -1 ). Ces traitements ont été comparés aux témoins avec et sans engrais minéral. Les résultats obtenus ont montré que les 3 variétés de maïs ont donné des rendements similaires et que les doses des fèces humaines accroissent significativement le rendement du maïs. Par conséquent, deux apports de ces déchets humains recyclés. (30 et 50 t.ha -1 ) ont créé de meilleures conditions de croissance et de nutrition pour les cultures, augmentant ainsi le rendement du maïs par rapport aux fertilisants inorganiques. Le rapport valeur sur cout (RVC) diminue cependant avec la dose appliquée et les doses de 1, 10, 20 et 30 t.ha -1 ont donné de RVC supérieurs à ceux obtenus avec les fertilisants inorganiques. Conclusion et application de la recherche : la valorisation de déchets en agriculture permet d'assainir le milieu tout en améliorant les propriétés des ferralsols en vue d'accroitre les rendements des cultures vivrières.Useni et al J. Appl. Biosci. 2013. Utilisation des déchets humains recycles pour la production du maïs de la RD Congo 5071 Use of recycled human waste to increase the production of maize (Zea mays L.) on a Ferralsol of southeast DR Congo Abstract Objective: By 2030, world population will increase by 3 billion people, 95% in developing countries, food production will have to double, and waste and effluents will quadruple in cities. The urban agriculture practiced contributes to the fight against poverty and environmental sanitation. It is a source of income and participates in Urban Sanitation using recycled waste as fertilizer The population of developing countries is growing, leading to an increase in need for food and an increase in the production of waste and effluents. Recycling of waste is involved in the fight against poverty and in environmental sanitation. This study was conducted to evaluate the effects of increasing doses of recycled human waste on the behavior of three maize varieties grown in the region of Lubumbashi. Methods and Results: The experiment was conducted at the Kassapa farm in the University of Lubumbashi (UNILU), in a factorial arrangement with 3 replications. Treatments included three varieties of maize (Katanga, and UNILU Babungo) and 5 doses of recycled human...

Changes in Soil Physicochemical Properties under Selected Climate-Smart Agricultural Practices in Central African Republic

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