1. A feeding unit for introducing an active substance into the root zone of many plants, comprising:! subsurface feeder with a cutting element for forming a furrow in the ground,! injector associated with the cutting element, to ensure the injection of the active substance into the furrow,! a positioning device configured to provide a change in the position of the cutting element so that a groove is formed in some material in the root zone when the cutting element moves through another material in the root zone,! a surface feeder configured to apply the active substance to the surface of the soil, and; ! a deflector configured to repel low branches from the path of the feeding station. ! 2. The assembly according to claim 1, in which the positioning device provides positioning of the cutting element so that it can form a furrow in softer materials such as soil and thinner roots when moving through solid materials such as stones and thick roots. ! 3. The node according to claim 1, in which the positioning device is made in the form of a suspension, which is actuated for the elastic displacement of the cutting element relative to the ground. ! 4. The node according to any one of claims 1 to 3, in which the cutting element rotates around an axis and creates a furrow during rotation. ! 5. The node according to claim 1, in which the cutting element is a disk. ! 6. The node according to claim 1, in which the cutting element is a spur. ! 7. The node according to claim 1, in which the surface feeder contains a spray nozzle. ! 8. The node according to claim 1, in which the surface feeder includes a dispensing device for granules. ! 9. The node according to claim 1, wherein1. Подкормочный узел для внесения активного вещества в прикорневую зону множества растений, содержащий: ! подпочвенный подкормщик с режущим элементом для образования борозды в грунте, ! инжектор, связанный с режущим элементом, для обеспечения впрыскивания активного вещества в борозду, ! позиционирующее у