FIELD: agriculture; engineering industry.SUBSTANCE: proposed system for delivering seeds and processing material to a furrow formed by two discs moving along a movement direction comprising a first and a second tube, first and second valves. First tube has a first outlet and is configured to periodically dispense one or more seeds through the first outlet. Second tube has an upper end, a lower end and a second outlet at the lower end, and is configured to discharge the processing material through the second outlet opening into the furrow. Latter is located in front of the first outlet with respect to the movement direction. First valve is located at the upper end of the second tube and is configured to be substantially outside the furrow during operation and is also configured to control the movement of the treatment material to the second tube. Second valve is located at the lower end of the second tube and is designed to be substantially in the groove during operation, and is also configured to control the