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Abstract
Field experiments were carried out during two growing seasons of (2006 – 2007). Fennel, caraway and coriander crops were planted manually in Abo El-Akhdar farm, Sharkia Governorate. The crops were harvested manually, then left for natural drying to start the threshing and cleaning operations by the developed machine for the used three crops at Department of Agricultural engineering, Faculty of Agriculture, Zagazig University to evaluate the performance of a threshing and cleaning machine.