EFFECT TRACTOR TIRES PRESSURE AND PRACTICAL SPEED TO EVALUATION THE PERFORMANCE AND EFFICIENCY PULLING OF THE LOCALLY MODIFIED

A. Jasim, A.; A. Mankhi, M.

	EFFECT TRACTOR TIRES PRESSURE AND PRACTICAL SPEED TO EVALUATION THE PERFORMANCE AND EFFICIENCY PULLING OF THE LOCALLY MODIFIED
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 19, Issue 3, 2014, Pages 0-0
Authors
A. A. Jasim; M. A. Mankhi
Abstract
The experiment was conducted in a field of the Faculty of Agriculture /University of Baghdad in 2011 to evaluate the effect of tractor tires pressure and practical speed on the performance and efficiency pulling of the locally modified Sweep plow with two tractors Massey included Ferguson MF (650) 140 hp and New Howland (TD80) 80 hp as a machine unit to plow silt clay loam soil. Three levels of tires pressure included 1,1.5, 2 bar and three levels of practical speeds included 2.458,5,298 and 6.654 km/m were study in this experiment included: slippage percentage, pulling force, horse power losses due to slippage and pulling efficiency were measured in this study. Split plot designs under randomized complete block design with three replications were used in this study. The results were as follow: The interaction between tires pressure 1 bar and practical speed 2.458 km/h was superior in getting less slippage percentage 5.164%, horse power losses due to slippage 0.359 kW and highest pulling efficiency 67.206% .The interaction between tires pressure 2 bar and practical speed 2.458 km/h was superior in getting highest pulling force 6.226 kN. We recommend to work at tires pressure 1 bar and practical speed 2.458 km/h get less slippage percentage, and horse power losses due to slippage and pulling efficiency.

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