Effect of Coating Chisel Plow Shares with Some Materials on Draft Force Requirement

This study was devoted to verifying the effect of using three different coating materials on draft requirement chisel plow shares. Four types shares with same geometric dimensions (70 mm width, 0.26 rad as lift angle and 45° for cutting angel) were used.  One share kept without its standard iron a control, other coated copper, aluminum stainless steel. Experiments conducted an open air soilbin digital electronic dynamometer attached Kobota tractor 26 KW measure required each in term horizontal force values. Measurements all assessed at depths 15, 20 25 cm, forward speeds 0.58, 0.75 1 m/s (2.1, 2.7 3.6 km/h) replications completely randomized design silty clay loam soil. The results revealed that steel-coated has lowest almost speeds. Therefore, it is recommended coat steel due low price locally internationally because lower use maintain levels corrosion.