Rexolin Q40/D12 — mineral fertilizer in granular form. The active ingredient content — Fe-EDDHA-DTPA chelate, which constitutes 6–11.6%. The preparation is intended for use on greenhouse vegetable crops such as tomatoes and cucumbers. The iron chelate provides plants with necessary microelements, promoting their healthy growth and high yield. The preparation can be used as a base fertilizer or during top-dressing. Using Rexolin Q40/D12 improves the physical and chemical properties of the soil, ensures a balance of microelements, and increases plant resistance to diseases. Additionally, the preparation aids in fruit formation, growth, and improved quality. Rexolin Q40/D12 is an effective and reliable product designed for agriculture. Using this fertilizer allows achieving better results in growing greenhouse vegetable crops, ensuring stable and high productivity.