Battery tractors and biofuels compete as manufacturers test alternatives to diesel engines for tomorrow's farms.

If Old McDonald had tractors like the Monarch MK-V on his farm he'd have a lot more time to e-i-e-i-o out of the hot sun and in the comfort of the barn or house. The Monarch MK-V tractor is ...

WEST LAFAYETTE, Ind. — Modern agricultural tractors contain so much cutting-edge technology, they rival even the latest spacecraft. But the back end is still old-school, relying largely on fossil ...