Kans grass (kaans) has taken over my fallow land, how to clear it?

Kans grass (kaans, Saccharum spontaneum) is a tough perennial grass that spreads by deep, creeping underground rhizomes, so cutting or shallow ploughing only chops the rhizomes into pieces that each grow into new plants, which is why ordinary tillage seems to spread it. Clearing it needs a sustained, integrated effort over a season or more. The most effective approach is deep summer ploughing to bring the rhizomes to the surface, then collecting and removing or letting them dry and die in the hot sun, repeated a few times so the rhizome network is exhausted. On non-crop and fallow land, a registered systemic herbicide that moves down into the rhizomes can be used when the grass is actively growing, but it must be a product allowed for that situation and applied per label, often needing repeat sprays. Once cleared, bringing the land into a competitive crop or dense cover keeps kaans from re-establishing, since bare fallow lets it return. Patience matters: a single operation rarely finishes it. Use only herbicides registered for non-crop or fallow land, follow the label, and confirm with your KVK or agriculture department, because the right method depends on whether you plan to crop the land soon.