
What is Leonardite?
Unlock your potential with Leonardit! Leonardit is a natural organic mineraloid extracted from the upper layers of lignite deposits. It is rich in humic and fulvic acids (over 68%), making it ideal for improving soil and stimulating plant growth. It is a sustainable and environmentally friendly choice for modern agriculture. The extraction process is carefully controlled to maintain the purity of the product, and its properties are the result of millions of years of natural humification. This mineraloid is distinguished by its unique ability to enrich the soil with organic matter, supporting long-term fertility.
Improves the soil
Increases water retention capacity and aeration, reduces erosion.
Increases yields
Studies show up to 25–40% higher yields in corn and other crops Journal of Plant Nutrition and Soil Science, 2010 .
Efficient absorption of nutrients
It helps absorb nitrogen, phosphorus and trace elements such as iron and zinc.
Ecological
Reduces the need for chemical fertilizers and protects against nitrate pollution.
Suitable for organic farming
Approved for organic farming according to European regulations
Our Leonardite
Our product, offered by Flex OOD, is distinguished by its high content of humic acids (over 68%), which ranks it among the highest quality in the world. It is extracted from reliable sources with quality control by our team in Ukraine. It is available in convenient packaging: Big Bags for large farms, 20 kg bags for fertilizer manufacturers and branded BioSelect packaging for retail.
Big Bags
Ideal for large farms, they provide easy transportation and storage, and are suitable for extensive plantations with high fertilization needs.
20 kg bags
Perfect for small and medium-sized growers who want to create their own fertilizer blends, offering flexibility and ease of application.
BioSelect packaging
Specially designed for the retail market, with an attractive design and convenient size, making it easier for home gardeners and small farmers.
Why choose
Leonardite?
Choosing our Leonardite guarantees sustainability and high efficiency. It is the result of a long research and development process, focusing on the quality of the raw material and its impact on the ecosystem. Our customers note improved plant health and reduced soil maintenance costs, making it an economically viable choice.

Success stories
Many farmers in Bulgaria and abroad have shared positive results after using our Leonardite. For example, a farm in Dobrudzha reported a 30% increase in sunflower yields after two years of regular use, thanks to improved soil structure.
Want to improve your soil and yields? Contact us to learn more about Leonardite and how it can help your farm!