Effect of Mineral and Humic Substances on Tailing Soil Properties and Nutrient Uptake by Pennisetum purpureum Schumach. j Trop. Soils [Internet]. 2016 May 10 [cited 2025 Nov. 5];20(2):101-9. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/226