Effectiveness of Bio-organic Fertilizer Formulas to Increase Productivity of Upland Rice and Dehydrogenase Activity in Lampung Acid Upland. j Trop. Soils [Internet]. 2016 Apr. 21 [cited 2025 Nov. 19];20(2):85-93. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/224