INVESTIGATION OF THE SOIL TILLAGE PROCESS BY VIBRATORY SUBSOILER

Abstract

There is substantiated a method for subsoil tillage of soil to the depth of up 45 cm to cultivate modern high-yielding agricultural crops. There is proposed a technique for intense decompaction of the soil structure by the directed impact of vibrational energy transmitted by working tools. A comparative evaluation of the field surface after passages of the vibratory subsoiler in various modes of its operation, including non-vibration mode, has shown that the use of tool’s vibrations allows reducing lumpiness and ridgeness of tilled soil, while preserving stubble. It has been found that the use of tool’s vibrations allows improving the soil structure due to intense crushing of large soil fractions and increasing the content of aggregates of agronomic value. It has been determined that the increase in the amplitude of tool’s vibrations within the range investigated results in increased efficiency of the use of vibrations, while the increase in forward speed shows the opposite effect. It has been found that the use of tool’s vibrations allows reducing tractive resistance of the subsoiler and improving its performance, thus reducing cost per unit of work done. Soil tillage with the vibratory subsoiler is superior to other well-known techniques of deep subsoil tillage.