BARUS, J. Soil Chemical Properties and Soybean Yield Due to Application of Biochar and Compost of Plant Waste. JOURNAL OF TROPICAL SOILS, [S. l.], v. 21, n. 1, p. 1–7, 2017. DOI: 10.5400/jts.2016.v21i1.1-7. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/236. Acesso em: 29 jul. 2025.