Abstract: A method for automatically turning an agricultural machinery to follow a set route in a defined work area when carrying out a farming procedure in a field controls the machine to decelerate and change direction when a turn round command is received. The work area includes at least two work channels, the agricultural machinery reaching the straight-line end of one work channel is turned to enter the next work channels. The agricultural machine is slowed down to a speed set for safe turning, any working equipment is retracted, and the agricultural machinery is turned round into new work channel. The working equipment is released again, and the agricultural machine continues its farming procedure along the new work channel. A system for such automatic turning and applications are also disclosed.