Drainage systems installed in agricultural areas help to regulate the soil moisture regime, improve field cultivation conditions, however, at the same time drainage water washes away unabsorbed plant nutrients (i.e. nitrogen and phosphorus compounds) into surface waters, the entry of which into water bodies causes their eutrophication. Of the drained lands, 80% of the total nitrogen and 53% of the total phosphorus enter the Baltic Sea. Addressing this issue through agronomic or rigid farming limitation measures alone, due to the diversity of natural factors and changing climatic conditions, often does not achieve the expected result. It is obvious that technological transformations are needed in the drainage systems themselves, therefore, their reconstruction, integrating new, environmentally friendly technologies, would be a relevant and important solution for the country's economy. <...>