A method for feeding granular material in an agricultural implement, comprising: providing at least two take-up zones, the extent of each of which, viewed in a horizontal plane, is defined by a roof (1022, 1026) above each take-up zone, providing an airflow through the take-up zones in the direction toward an outlet from each take-up zone, providing side walls (1023, 1027) extending downward from the roof, so that a space, which is open in the downward direction and toward the outlet, is formed between the roof (1022, 1026) and the side walls (1023, 1027), providing a feed zone separating two take up zones, wherein a base of each take-up zone constitutes a common base with the feed zone, feeding the material to the feed zone, feeding the material from the feed zone to the take-up zones with the aid of gravity, so that the material falls in a direction transversely to the airflow into the take-up zones and thus delimits the space in the downward direction, characterised in that the method further comprises: providing a part (1022, 1025) which is adjustable between at least two positions, with the aid of the adjustable part (1022, 1025), regulating a flow rate of the airflow in the space between the roof, the side walls and the material, with the aid of the adjustable part: I) regulating a flow area for the airflow in the space, or II) controlling a flow area for a bypass flow (Ff), so that a part of the air flow is led past the space, or III) controlling a height position of the side walls. providing at least two take-up zones, the extent of each of which, viewed in a horizontal plane, is defined by a roof (1022, 1026) above each take-up zone, providing an airflow through the take-up zones in the direction toward an outlet from each take-up zone, providing side walls (1023, 1027) extending downward from the roof, so that a space, which is open in the downward direction and toward the outlet, is formed between the roof (1022, 1026) and the side walls (1023, 1027), providing a feed zone separating two take up zones, wherein a base of each take-up zone constitutes a common base with the feed zone, feeding the material to the feed zone, feeding the material from the feed zone to the take-up zones with the aid of gravity, so that the material falls in a direction transversely to the airflow into the take-up zones and thus delimits the space in the downward direction, characterised in that the method further comprises: providing a part (1022, 1025) which is adjustable between at least two positions, with the aid of the adjustable part (1022, 1025), regulating a flow rate of the airflow in the space between the roof, the side walls and the material, providing a part (1022, 1025) which is adjustable between at least two positions, with the aid of the adjustable part (1022, 1025), regulating a flow rate of the airflow in the space between the roof, the side walls and the material, with the aid of the adjustable part: I) regulating a flow area for the airflow in the space, or II) controlling a flow area for a bypass flow (Ff), so that a part of the air flow is led past the space, or III) controlling a height position of the side walls. I) regulating a flow area for the airflow in the space, or II) controlling a flow area for a bypass flow (Ff), so that a part of the air flow is led past the space, or III) controlling a height position of the side walls.