World Rice Combine Harvester

The combine harvester, or simply combine, also known as a thresher is a machine that combines the tasks of harvesting, threshing, and cleaning grain crops. The objective is to complete these three processes, which used to be distinct, in one pass of the machine over a particular part of the field. Among the crops harvested with a combine are wheat, oats, rye, barley, corn (maize), soybeans, and flax (linseed).