Some authors suggest that the C/N ratio is an extremely important property in the decomposition of organic matter by
microorganisms (Marin, 2004), and for this reason, the organic matter added to saline soils plays an important role in the
positive effect observed in microbial activity and enzymatic activities such as urease, alkaline phosphatase and dehydrogenase. Tejada and Gonzalez (2005) demonstrated that an increase in the organic matter content of saline soils increases soil structural stability, soil bulk density and, therefore, soil microbial biomass.