A method for applying agricultural products on a field with an implement guided by an external guidance system, wherein the implement comprises a plurality of sections that can be turned on to apply the products or turned off to stop applying the products, includes mapping the field to determine an implement travel path； determining overlap areas in the field where a section of the implement on a later pass will travel over a portion of an earlier pass of the implement； moving the implement along the implement travel path with sections turned on as required to apply the products on the field outside the overlap areas； and for at least one overlap area, during the earlier pass turning sections of the implement that are completely in the overlap area off, and during the later pass turning sections of the implement that are in the overlap area on.
