Abstract
This research was carried out at Ninevah governorate to study work production criteria in economical evaluation in potato production operation during 2008. the study include using three areas with different mechanization system . These systems were different with each other in planted areas, human , technical and mechanical capabilities. The studied criteria were (Mechanical support , Mechanical power availability , Work productivity , Financial support , Coefficient of time exploitation and Hectare revenue). The results were summarized as follows: The third system showed the highest value in mechanical support 10.16 kw/person , while the first system showed the highest value in mechanical power availability 2.98 kw/ha . The third system showed the highest value in work productivity 9.05 kg/person.hr , financial support 1306791 Dinar/person, coefficient of time exploitation 0.62 and highest revenue 817061 Dinar/hectare.