Forage harvester (10) with a harvesting attachment (20) for harvesting maize or other stem-like plants having detachable fruit heads, wherein: The harvesting head (20) comprises a supporting frame (60) extending over the width of the harvesting head (20) and across the width of which are devices for harvesting plants in the form of mowing and intake units (56), which are equipped with lower
cutting discs for
cutting the stems from the stumps remaining in the ground and above them conveying discs with recesses distributed around their edge for receiving the stems of the plants, and above the mowing and intake units (56) are means for separating fruit heads of the plants in the form of picking units (54), The fruit
bunches separated by means of the picking units (54) can be conveyed together by an upper transverse conveyor (48) and fed to the rear by a conveyor (44) into a first intake channel of the
forage harvester (10) which is laterally offset from the longitudinal center plane of the harvesting head (20), while the remaining
plant parts can be conveyed together by a lower transverse conveyor (50) and fed to the rear into a second intake channel of the
forage harvester (10) adjacent to the longitudinal center plane of the harvesting head (20), the
forage harvester (10) comprises a chopping drum (22) with knives (62, 64) distributed around its circumference, into which the fruit heads can be fed through the first intake channel in a first section (70) of the chopping drum (22) and separately the remaining
plant parts through the second intake channel in a second section (68) of the chopping drum (22), wherein the second section (68) is axially offset from the first section (70) and rigidly connected to the first section (70), the circumferentially successive knives (62) of the chopping drum (22) in the first section (70) have a smaller distance between them than the circumferentially successive knives (64) in the second section (68) and / or the conveying speed in the first feed channel is greater than the conveying speed in the second feed channel, only the first section (70) is assigned a downstream post-crushing arrangement with two cooperating rollers (28, 28') which serves to break up the grains of the fruit heads for better digestibility, and Downstream of the chopping drum (22) is a
discharge device with a
discharge conveyor (24) for accelerating the chopped fruit heads entering from the secondary chopping device and the chopped remaining
plant parts entering from the second section (68) and a
discharge spout (26) through which both the chopped fruit heads and the chopped remaining plant parts can be transferred to a transport vehicle.