Nugroho SG, Dermiyati ., Lumbanraja J, Triyono S, Ismono H, Sari YT, Ayuandari E. Optimum Ratio of Fresh Manure and Grain Size of Phosphate Rock Mixture in a Formulated Compost for Organomineral NP Fertilizer. j Trop. Soils [Internet]. 2012Nov.13 [cited 2025Jul.27];17(2):121-8. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/142