FIELD: agriculture; machine building.SUBSTANCE: invention relates to agricultural machine building, particularly to tillage tools. Ground-treatment device comprises a base frame and arranged thereon soil working tools and at least one additional ground-treatment device, including a further frame and arranged thereon soil working tools. Additional ground-treatment device via at least one hinge point in the height movable with respect to the base frame is arranged, whereby the mobility can be limited by limiting means. Chassis, comprising at least one impeller and at least one frame also via at least one hinge point in the height movable with respect to the base frame is arranged. In a lowered position, the ground cultivating tools and the additional ground-treatment device are operatively connected and in a raised position are lifted above the floor. Chassis with at least one connecting element is connected with the additional ground-treatment device. In a raised position of the ground working apparatus to the
