To determine the cut height of fallen stems

Abstract A significant part of the harvested crops lies down by the beginning of harvesting, and the harvesting of fallen bread cereals is accompanied by an increase in grain losses. The productivity and quality of the cutting devices of harvesting machines, which are used for harvesting crops, largely depend on the cut height of the fallen stems. It was found out that with an increase in the cut height, grain losses increase, and with its decrease, the efficiency of agricultural machinery decreases due to clogging of mechanisms with plants and soil. The article considers the analytical dependencies between the characteristics of the height of the cut stems, the soil surface and the cutting machine in its general movement across the field. The basic formulas of such dependencies are given.