Effect of tillage practices on the soil carbon dioxide flux during fall and spring seasons in a Mediterranean Vertisol (En) Moussadek, R. (INRA, Rabat (Ma) centre Régional de la Recherche Agronomique de Rabat), E-mail:rachidmoussadek@yahoo.fr; Mrabet, R. (INRA,Tanger (Ma) centre Régional de la Recherche Agronomique de Tanger), E-mail:rachidmrabet@yahoo.co.uk; DOUAIK, A. (INRA, Rabat (Ma) centre Régional de la Recherche Agronomique de Rabat), E-mail:ahmed_douaik@yahoo.com; Verdoodt, A. (Department of Geology and Soil Science (WE1 3), Laboratory of Soil Science, Ghent University, Krijgslaan 281/58,) Van Ranst, E. (Department of Geology and Soil Science (WE1 3), Laboratory of Soil Science, Ghent University, Krijgslaan 281/58,) Corbeels, M. (Centre de Coopération Internationale en Recherche Agronomique pour le Developpement (CIRAD), France) ; In: Journal of Soil Science and Environmental Management ; Nov. 2011 V. 2(11)