A method for planning the cultivation of an at least quadrangular area of an agricultural field is presented. The area has edge sections between its corners, including a first edge section and a second edge section. The second edge section is arranged opposite of and oblique to the first edge section. A plurality of first working paths and a plurality of second working paths are determined. A lane that runs at least partially along the first working paths and the second working paths and along which an agricultural machine is to be moved over the area is determined. A plurality of turning points along the lane at which the machine is steered is determined, such that the lane runs less along the first working paths and further along the second working paths as the distance from the first edge section increases.