THEORETICAL RESEARCH AND DEVELOPMENT OF INDICATOR OF PERMISSIBLE SOIL COMPACTION BY RUNNING SYSTEMS OF MACHINE-TRACTOR AGGREGATES

Abstract

To essentially reduce soil compaction under real operating conditions of agricultural machinery, it is undesirable to exceed its permissible values. A theoretical study and analysis of the range of the most common machine-tractor aggregates (MTA) made it possible to establish a relationship between their design parameters and the energy (or work) that is spent on moving them across the field in the process of growing various crops. On the basis of the conducted theoretical research a new indicator of the allowed soil compaction by the running systems of the machine-tractor aggregates was developed, which regulates their movement across the field without deteriorating the state of the soil environment. Within the same field area, with the same working width of the machine-tractor aggregate, the value of the indicator of the allowed soil compaction by its running system does not exceed the maximum allowed value (0.75 GJ·ha-1) and is practically indifferent with respect to changes in the length of the field headland and its width. Under the condition of more than one pass of the machine-tractor aggregate across the field, the constructive width of capture should increase according to the derived analytical regularity.