Harvesting header having harvesting units for harvesting stalk-type plants, and having at least one mulching implement, arranged behind the harvesting units, for processing plant stubble, wherein the mulching implement comprises the following: a drive shaft which is rotatable about a vertical axis, or an axis inclined in relation to the vertical, by way of a transmission and which is pivotable, so as to follow the ground, about an axis oriented transversely to the forward direction of the mulching implement, a tool, coupled to the drive shaft, for processing the plant stubble, which tool is able to be set in rotational motion by way of the drive shaft, and connecting means for torque-transmitting connection of the drive shaft to the tool, characterized in that the connecting means comprise an overload prevention means which is configured such that, in the event of exceedance of a maximum torque acting between the drive shaft and the tool, it tears off if the torque causes the tool to tilt about an axis directed transversely to the axis of rotation of the drive shaft in relation to the drive shaft, in that the connecting means comprise a holder, which is coupled rotationally conjointly and axially immovably to the drive shaft, and multiple pins, which are arranged between the holder and the tool and tear off in the event of overload and are oriented parallel to the axis of rotation, and in that the holder is equipped with projections which make it possible for torque to be transmitted from the holder to the tool and vice versa in the direction of rotation, while exceedance of a maximum torque which causes the tool to be twisted in relation to the drive shaft in relation to the direction of rotation is protected against by way of an overload coupling in the transmission and does not lead to the pins being torn off, since this torque is transmitted from the tool to the holder by way of the projections. a drive shaft which is rotatable about a vertical axis, or an axis inclined in relation to the vertical, by way of a transmission and which is pivotable, so as to follow the ground, about an axis oriented transversely to the forward direction of the mulching implement, a tool, coupled to the drive shaft, for processing the plant stubble, which tool is able to be set in rotational motion by way of the drive shaft, and connecting means for torque-transmitting connection of the drive shaft to the tool, characterized in that the connecting means comprise an overload prevention means which is configured such that, in the event of exceedance of a maximum torque acting between the drive shaft and the tool, it tears off if the torque causes the tool to tilt about an axis directed transversely to the axis of rotation of the drive shaft in relation to the drive shaft, in that the connecting means comprise a holder, which is coupled rotationally conjointly and axially immovably to the drive shaft, and multiple pins, which are arranged between the holder and the tool and tear off in the event of overload and are oriented parallel to the axis of rotation, and in that the holder is equipped with projections which make it possible for torque to be transmitted from the holder to the tool and vice versa in the direction of rotation, while exceedance of a maximum torque which causes the tool to be twisted in relation to the drive shaft in relation to the direction of rotation is protected against by way of an overload coupling in the transmission and does not lead to the pins being torn off, since this torque is transmitted from the tool to the holder by way of the projections.