@mark s posted:Sparty - I know the wheeled tractor's function, but what is the tractor with treads used for?
Tractors with treads are used for the same function as tractors with wheels. Just different method of traction. I believe that some think the treads produce better traction than wheels, especially in muddy conditions, but I am not a farmer and am not sure. I know that one can also find treads on bobcat type loaders.