A device (1) for mixing agricultural products, comprising an inlet conduit (2) of a first product an outlet conduit (3) of a product mixed in fluid communication with the inlet conduit (2) a mixing chamber (4) movement means (6) of the mixing chamber (4) to move it between picking and mixing positions with a frequency (f) a sensor (22) to detect a flow rate of first product in the inlet conduit (2) a processing unit (23) comprising a reading module (24) configured to acquire a flow rate value (Q) of first product, a control module (25) configured to obtain a target value (f0) of frequency (f) as a function of the value (Q), an operative module (26) configured to activate the movement means (6) and vary the frequency (f) as a function of the target value (f0).
