When the land included in a subdivision plat or certified map abuts
upon or is adjacent to land used for farming or grazing purposes,
the subdivider shall erect, keep, and maintain partition fences, satisfying
the requirements of the Wis. Stats. for a legal and sufficient fence,
between such land and the adjacent land. A covenant binding the developer,
its grantees, heirs, successors, and assigns to erect and maintain
such fences, without cost to the adjoining property owners, so long
as the land is used for farming or grazing purposes, shall be included
upon the face of the final plat or Certified Survey Map.