Importance of sugarcane straw maintenance to prevent soil organic matter depletion in a Nitisol in the central-southern region of Brazil - Popin, Gustavo Vicentini; Santos, Artur Klebson Belarmino dos; Melo, Paul Lineker Amaral de; Cherubin, Maurício Roberto; Cerri, Carlos Eduardo Pellegrino; Siqueira-Neto, Marcos (Soil Research, 2020)