The disclosure refers to a method for operating an agricultural system having a tractor (1)； a plough (2) hitched to the tractor (1) through a hitch mechanism (20)； working tools (23) received on a frame of the plough (2)； a depth control wheel (10b, 22) adjustable in height relative to the frame； a top link (10a, 21) connected to the frame for lifting the frame； and a control system provided on at least one of the tractor (19 and the plough (2). The method comprises: operating the plough (2) in a normal mode of operation while the plough (2) is moved by the tractor (1) over the field, the working tools (23) of the plough (2) being engaged with the soil in the normal mode of operation； providing a request signal in the control system, the request signal indicating a request for starting a headland control mode of operation； and, in response to the request signal, starting the headland control mode of operation. The headland control mode of operation comprises: providing control signals in the control system (9), the control signals defining a sequence of positions for both the top link (10a, 21) and the depth control wheel (10b, 22), wherein the sequence of positions comprises positions assigned to an intermediate plough working position in which some of the working tools (23) are disengaged from the soil and a transport plough position in which all working tools (23) are disengaged from the soil； and operating the top link (10a, 21) and the depth control wheel (10b, 22) according to the control signals while the tractor (1) with the plough (2) is arriving at the headland, moving through the headland and leaving the headland. Further, an agricultural system is provided.
