Editing Tractor (section)

=== Standard ===
The earliest tractors were called "standard" tractors, and were intended almost solely for [[plough|plowing]] and [[harrow (tool)|harrowing]] before planting, which were difficult tasks for humans and [[working animal|draft animals]]. They were characterized by a low, rearward seating position, fixed-width tread, and low ground clearance. These early tractors were cumbersome, and ill-suited to enter a field of planted row crops for weed control. The "standard" tractor definition is no longer in current use. However, tractors with fixed wheel spacing and a low center of gravity are well-suited as loaders, forklifts and backhoes, so that the configuration continues in use without the "standard" nomenclature.