Abstract: In a sugar-cane harvesting machine with a mobile machine base frame and a chopping mechanism (8), harvesting attachments which can be optionally fixed on the machine base frame are provided for adapting to different harvesting circumstances and terrain conditions, of which harvesting attachments one is designed for single-row harvesting and another for multi-row harvesting. The harvesting attachments contain row dividers (5, 6, 7), a mowing mechanism (23, 24, 25, 26) and a feeding mechanism (b 19, 20, 21, 41, 42). The multi-row harvesting attachment projects beyond the chopping mechanism (8) predominantly on one side so that symmetry is produced with respect to the running gear. In the uniform feeding space behind the mowing mechanism, the stream of material is laterally constricted and, specifically, preferably on one side.