Milne succeeds Dr William Rolleston who steps aside after his three-year tenure.
A previous Federation board member and West Coast Provincial president, Milne was Dairy Woman of the Year and a Rural Woman of Influence in 2015.
Manawatu dairy farmer Andrew Hoggard was elected National Vice President while South Canterbury farmer Miles Anderson takes over as National Meat and Fibre chair with Rick Powdrell stepping aside.
Waikato farmer Chris Lewis takes over as National Dairy Industry Chair succeeding Andrew Hoggard.
North Canterbury farmer Lynda Murchison has been elected as one of two board members at large alongside Chris Allen who was reappointed.
Arable chair Guy Wigley remains on the board pending next week’s arable sector AGM.