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