Effect of Soil Moisture Content, Forward Speed and Bent Leg Blade Spaces on Soil Pulverization

The factors influencing the efficiency of tillage tools are such as soil moisture content, tool geometry and forward speed. This study was a spilit-spilit plot experimental design with three replications to determine the effect of new bent leg tillage on soil pulverization. Treatments were three soil moisture content levels of 7-10, 10-13 and 13-16 as the main plots, three forward speeds of 5, 7.5 and 10 km/h as the sub-plots and three blade spaces of 12, 16 and 20 cm as the sub-sub-plots. In this research, the effect of bent leg tillage on soil moisture content, forward speed and clod mean weight diameter (MWD) were studied. Results indicated that forward speed, shank spaces and soil moisture content during tillage affected MWD. Increasing forward speed and soil moisture content during tillage and also reducing blade spaces reduced MWD. The findings show that the technology of the new bent leg tillage has the potential to increase forward speed during tillage operation with reducing MWD. Also, it can improve work-rate and reduce the time of seed-bed preparation.