The experiment was conducted to evaluate the effect of primary tillage equipment on practical productivity, slippage percentage and total cost for machinery units. Three treatments including primary tillage equipment (mold board , chisel   and rotary plows).Randomized complete block design with three replications and LSD (0.05) was used to compare the means of treatments at 0.05. The experiment results showed the following:- 1-Chisel plow indicated significant superiority upon moldboard and rotary plows in achieving higher practical productivity combined with lower total cost. 2-Rotary plow indicated significant superiority upon moldboard and chisel plows in achieving slippage percentage