Due to the scale of leachate formation in soilless crop technologies, water and nutrient management is becoming more and more important and can determine the production efficiency. Closed systems, including recirculation or recovery of leachate from fertilisation, are an opportunity to retard unfavourable nutrients and water, which has become an important element of modern technology and has a significant environmental impact. Re-application of leachate, despite very low concentrations of macro- and microelements, must be performed taking into account the properties of the substrate/soil, the requirements of the plant and the dose of leachate. In the case of maize cultivation on two soils, irrigation of the crop with leachate from soilless strawberry production led to the soil salinization. From the point of view of the leachate fertiliser value, the source of water for fertigation and the component concentration in the media, which can cause ion imbalance, remain important.