تعيين شاخص هاي مكانيزاسيون عمليات خاك ورزي متداول در ده استان كشور

Determination of mechanization indices related to conventional primary tillage in ten different regions

Increasing productivity, reducing costs and suitable application of agricultural machines can be achieved by using uniform methods and application of social, economical and technical indices that is adaptable to agricultural conditions of different areas. There is no detail information for many parts of the country, hence providing and presenting development patterns will not have scientific credit and applicability without these fundamental data. In this study, tillage indices and coefficients as a agricultural main operation was determined by sampling from conventional tractors (MF285, U650 and John Deer 3140) in Tehran, Fars, Isfahan, Khoozestan, Darab, Hamedan,Moghan,Semnan, Khorasan, Shahrekord and Markazi areas during tillage. Results showed that average tillage mechanization degree was 98.6%. So, these areas were full mechanized in aspect of tillage. Mechanization level was 0.96 hp/ha (upper than average of the country). Mechanization capacity and hectare per tractor were 55kW.h/ha and 50.45 respectively that is showed the power consumption per hectare during one hour is 55kW and there was one tractor for each 50ha of field. The maximum and minimum application power coefficient was for Moghan and Fars areas respectively. Effective field capacity and theoretical capacity were 0.31 ha/h and 0.45 ha/h respectively. Field efficiency was 68.85 % that was less than world standards.