... , also known as a rototiller, rotavator, rotary hoe, power tiller, or rotary plough (in US: plow), is a motorised cultivator that ... as an attachment behind either a two-wheel tractor or four-wheel tractor. For two-wheel tractors they are rigidly fixed and powered ... ).In some parts of the world, the term "power tiller" can encompass the larger and similar appearing two-wheeled tractor, a machine ...