Patent ID: 7962266

Claim:
A method of performing agricultural operations on a field with parallel arranged rows having ends, comprising the following steps: propelling a vehicle past the ends of the rows; generating a position of the implement and deriving a heading of the implement by a location signal generation arrangement; performing agricultural operations related to formation of dams for surface water management with an implement connected to the vehicle at desired positions related to the positions of the rows under control of a controller; the controller controlling the implement to perform the operations based upon stored information about the orientation of the rows, stored information about a distance between adjacent rows, a distance signal related to a distance traveled by the vehicle and a direction signal related to the heading of the vehicle, and the desired position and angle of each of the dams with respect to a head ditch; and instructing, by the controller, an actuator of the implement to build the dam or deposit material for the dam at the desired position compensating for orientation of the rows with respect to the heading of the vehicle such that the required distance between adjacent ones of the dams is proportional to I/cosine α, where α is the angle between the heading of the vehicle and the longitudinal direction of the rows.