The Effect of Rice Husk Biochar and Cow Manure on Some Soil Characteristics, N and P Uptake and Plant Growth of Soybean in Alfisol. j Trop. Soils [Internet]. 2022 Mar. 15 [cited 2026 Jan. 27];27(2):59-66. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/475