DETERMINATION OF THE SUITABLE PARAMETERS FOR MODIFIED CHISEL PLOUGH AS A PART FOR COMBINATION TILLAGE UNIT

Experiments were conducted to study the suitable parameters for a modified chisel plough, which can be used as attached part with primary or secondary tillage machines. The main parameters used in this study were different implement forward speeds, types of shares, number of shanks and entrance angle. The experiments showed that the best parameters of manufacturing chisel unit was by using 4 tines, pointed share and 30° degree of entrance angle to obtain the best value of soil penetration resistance and good percentage less than 10 cm.