Brazil is oneofthe largest sugarcane producers around the world, however the effects concerning environment issues in soil are still no well described.Soilelectrochemical can provide important information about residues uses and environmental contamination, andthenzeropointof charge (ZPC)is a parameter that may demonstrate this variation. In this study, It wasanalyzedthesoil behavior when submitted to sugarcane vinasseapplication in different doses simulating high and low doses application as regularlydone by the manufacturesin typical tropical weathered oxisols. To procedure ZPC test, microcosmsexperiment wasmanagedwith all parameters measured and controlled in a factorial design:2 soil depths (superficial group–0.0 –20.0 cm and sub-superficial group–60.0 –80.0 cm), 3 salt concentration (0.002; 0.02 and 0.2 mL NaCl), and 4vinassedoses (Without application;Low –164.28 mL L-1; Intermediate –328.57 mL L-1and High657.14 mL L-1), after incubation all the samples were measured electrochemically.Based on these analyses, data rised two main highlights: 1. vinasselow dosesbehaved like a buffer solution, 2. High doses in sub-superficial layer disturbed ZCP. Then, vinasse seems correlate with lixiviation capacity, and then over-applications can disrupt soil solution on this soil.

No abstract