I bought it from ordinary garden shop. It is potting soil from brand Pokon. Contains peat, lime and fertilizers (i supoose synthetic).
Amount of added fertilizer:
-1 kg 14-16-18 (NPK fertilizer with trace elements) per 1 m3
-1 kg 18-6-12 (resin coated NPK with long-acting fertilizer) per 1 m3