The product is based on an aqueous colloidal solution of leonardite enriched with a unique complex of biogenic meso-, micro- and ultra-micronutrients chelated with citric acid. Leonardite is one of the most effective humic sources in the world. The main difference between leonardite is the high biological activity of its molecular structures due to the optimal ratio of humic and fulvic acids.Humic acids (HA) increase the cation exchange capacity (CEC) of soils, i.e. the ability of the soil to retain nutrients and also, as an excellent natural chelating product, they accumulate microelements in forms that are easy for plantsto absorb. The humic acid content of ECO AGRO-WIN is 24%. The many negatively charged anions of humic acids attract and retain in the soil numerous positively harged cations of microelements, such as calcium, ammonium, magnesium, iron, etc., which are beneficial for plant development. This function of producing chelated cations results in a significant increase in yield for humic acid. Humic substances increase the capacity of cation exchange, increase the agronomic value of the soil structure and improve the water-air regime, thermal properties, and soil buffering.