A potato-digging plough comprises a frame, a plough body with a shortened mouldboard, a rotor mounted behind hereof. The rotor is fixed on a shaft. The axle of the latter is allowed regulating an inclination angle to the soil surface, the rotor is made as a truncated cone with longitudinal openings, in the lower part of which an assembly spring, made of rods, is disposed. Higher on the axis of the rotor a lightened disk, made of rods, with fingers is mounted. In the upper part of which a cross-like rake is fixed hingedly, and a flexible spiral is fixed to the walls of the rotor.
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