Farmer's fields is the central location of Farmer Smurf's activities in the 1980s Smurfs cartoon show. It is usually where all the food that the Smurfs eat is grown and harvested, including smurfberry bushes. In the comic books, Farmer has a vegetable garden that he tends to while Miller takes care of the wheat fields.
In the 2021 cartoon show, it is mentioned in "Smurfy Secrets" when Jokey tells Brainy and Storm that he "smurfs" in Farmer's fields. It does not appear in this cartoon yet, as Farmer's garden is featured more prominently.