A plough device (100) and a method for ploughing a ground (120). A rotatable first plate-like cutting element (102) having a circumferential first cutting edge (103) is arranged on a support structure (101) and is designed such that when the support structure (101) is moved on the ground (120) along a ploughing direction (110), a side region (202) of a soil ridge (201) of the ground (120) can be cut by means of a first cutting region (104) of the first cutting edge (103). A second disc-shaped cutting element (105) having a second cutting edge (106) is arranged on the support structure (101) and is designed such that when the support structure (101) is moved on the ground (120) along a ploughing direction (110), a base region (203) of a soil ridge (201) of the ground (120) can be cut by means of a second cutting region (118) of the second cutting edge (106), wherein the second cutting element (105) is arranged relative to the first cutting element (102) in the ploughing direction (110) such that the second cutting region (118) is arranged before the first cutting region (104) in the ploughing direction.