n the soils of South Africa, Dominy et al. (2002) also found high levels of TOC under sugarcane without burn (45 g kg−1 ),
whereas under the burned sugarcane, TOC did not exceed 30 g kg−1 . Assessing stocks of C and N in soil under different management systems and uses, Rangel and Silva (2007) observed that stocks of TOC were significantly affected by the management system, and those involving no-tillage or minimum tillage exhibited a tendency to store more TOC. Similar results were obtained in a meta-analysis of various trials conducted in Brazil (Kaschuk et al., 2011 )