Gestion durable de la fertilite des sols a travers l'impact de l'ecume de sucrerie sur la mineralisation de la matiere organique dans un cambisol au centre ouest de Cote d'Ivoire [ Sustainable management of soil fertility through the incidence of foam of sugar refinery on the mineralization of the organic matter in a cambisol in the middle west of Cote d'Ivoire ]

The dynamics of organic matter was investigated in a Cambisol, in the middle west of Cote d'Ivoire, under irrigation condition, through incubation of foam in the inter-rows of sugar cane farm. In order to follow the organic matter's decomposition, Physico-chemical analyzes have been realized on two types of soil samples, one type containing foam and the other one without foam. In the absence of foam, changes in the levels of carbon (C) and total nitrogen (N) is remained very slight. In contrast, levels of total carbon in amended soil change one and a half time faster. The constants of loss of carbon are 0.0069 p.c. of C and 0.0054 p.c. of C per day, respectively, for the amended and the control soils. The incorporation of foam into the soil induced an increase in the organic matter content of 11 p.c. and the total nitrogen of 8 p.c.