Abstract: Systems and methods for distributing granular products into the soil, comprising a mechanism for opening a furrow in the soil, a mechanism for filling the furrow, a first assembly for distributing a first granular product, comprising a main hopper, a first distribution mechanism for distributing a first granular product, in communication with said main hopper, a first conveyor mechanism for carrying said first granular product to the soil, to a first relative distribution position located between said mechanisms for opening and filling the furrow, at least one additional dispensing assembly for at least one additional granular product comprising mechanisms capable of depositing the said at least one additional granular product in the said relative dispensing position, and in another relative dispensing position situated before the said furrow opening mechanism, or in another relative dispensing position, located after the said furrow closing mechanism, said additional dispensing assembly, cooperating with or

Abstract: Systems and methods for distributing granular products onto or into the soil, comprising a chassis, a first assembly for distributing a first granular product comprising a main hopper, fixed to a frame, which can move in relation to said chassis and is able to adopt a position known as the “lowered” position, which is the working position of said sowing unit, and a position known as the “raised” position, which is the maintenance position of said sowing unit, and that is able to move from said “lowered” position to said “raised” position and vice versa, said sowing unit also comprising a mechanism for tilting said frame and comprising a collapsible quadrangle or double quadrangle that connects said frame to said chassis, said tilting mechanism being arranged substantially perpendicular to the plane X-X? formed by said chassis, and maintained substantially perpendicular to said plane X-X? in said “lowered” and “raised” positions and when moving from one position to the other, and vice versa.