The invention comprises a device for conveying granular material to be applied on an agricultural surface, comprising a reservoir (1) for the granular material, a separating device (5), and a pneumatic conveying channel (4) for pneumatically conveying granular material from the reservoir (1 ) to the separating device (5), wherein in the region (14) of the mouth of the pneumatic conveying channel (4) in the separating device (5) at least one air channel (13) opens into the separating device (5), and an air supply channel (17) the area ( 14) of the mouth of the pneumatic conveying channel (4) into the separating device (5) with a housing (10) of a singling drum or separating disc (6) of the singling device (5), wherein in the region of the mouth of the at least one air duct (13) in the Separation device (5) is provided a nozzle, so that over the at least one Luftkana L (13) supplied to the air at a higher speed than the air supplied via the pneumatic conveying channel (4) in the singulator (5), and wherein a bypass line is provided with adjustable air flow, which upstream of the nozzle from at least one air duct ( 13) or branches off from the pneumatic conveying channel (4) and opens into the air supply channel (17) or into the housing (10) of the separating drum or separating disk (6).
