Harvesting starts when the leaves and stem turn yellow in color and become fairly dry. Remember that the wheat must be harvested before it is dead ripe to avoid loss in yield. Thus, timely harvesting is necessary for good quality as well as maximum production of wheat. When the moisture content in the wheat reaches to about 25 - 30%, then the wheat is ready to be harvested. Combine harvester are available in the market for harvesting, threshing and winnowing of wheat crop in a single operation.