a machine that plows the soil and, at the same time, breaks up large clumps of soil. The plowing combine produced in the USSR has a plow to work the soil, a drag to cut the stubble and place it in windrows, and a ring roller to break up large clumps, pack the subsurface layer, and loosen the top layer of the soil. The plowing combine is used with tractors in the 3-ton class. Its productivity is 0.92 hectares per hr, its operating width is 1.75 m, and its maximum plowing depth is 27 cm.