Influence of biochar on the microflora in reclaimed soils in the area of the Medet mine from the Asarel-Medet metallurgical plant in Bulgaria. BJCS [Internet]. 2025 Aug. 26 [cited 2026 May 13];62(4):91-7. Available from: https://agriacad.eu/ojs/index.php/bjcs/article/view/4913