Guardiola, Marden Daniel Espinoza, José Frutuoso Vale Júnior, Edmilson Evangelista da Silva, Celeste Queiroz Rossi, and Marcos Gervasio Pereira. “Chemical and Physical Fractions of Soil Organic Matter under Various Management Regimes in Roraima, Brazil”. Semina: Ciências Agrárias 38, no. 4Supl1 (August 25, 2017): 2419–2432. Accessed December 19, 2025. https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27560.