A high-concentration organic complex based on lake peloids (sapropel). Suitable for all types of crops, soils, and processing technologies. For the production of Bigus Extra, only high-quality ecological raw materials are used—peloids from Russia's cleanest northern lakes. Peloids are natural clay formations that form at the bottom of reservoirs under anaerobic conditions over a long period. The unique natural composition differentiates Bigus Extra from most chemically synthesized products. Primarily, it is intended for use in organic farming.