The tractor is the modern day workhorse of agriculture. From 200 pound walk-behinds to 27 ton behemoths, and everything in between, the tractor allows producers to maximize time and production like never before. Many tractors have a multi-purpose role, as different pieces of machinery (called implements) can be attached to perform different tasks. In addition, some tractors specialize in harvesting corn, soybeans and other grains. These are called combine harvesters, because they combine the processes of reaping, threshing, gathering, and winnowing into a single process. Other specialize in harvesting cotton.
Popular brands include John Deere, Case International Harvester (Case IH for short), Kubota, New Holland and Massey Ferguson.