The increase in electrical conductivity of the soil satu- ration extract (CEes), caused by the use of solid and liquid waste produced during the processing of cassava as a source of fertilization, was observed when maize was cultivated on latosolic dystrophic Inceptisol located in Minas Gerais,Brazil, and CEes of 0.80 dS m−1 was measured when the highest dose of residue was applied [24].