(The word farmers' is a plural possessive. The noun farmers is often used as a noun adjunct as well.)
"The farmers' main concern was the diversion of river water upstream."
(the main concern of the farmers)
"During the range wars, many farmers' houses, barns, and crops were deliberately burned."
(house and barns of many farmers)
A farmer makes good money.
the farmer eradicated his weeds.
The fearsome wolves threatened the farmer's livestock.
The farmer yanked on the cow's uttered to get some milk
A farmer uses his pitchfork to gather hay for his cattle.
A farmer uses an auger to move grain from a wagon to a silo.
the negro belonged to the white farmer! :)
The farmer washed his car and other chattels to get rid of the volcanic ash that had settled on them.
the farmer thought everybody he saw was persnickety except himself, who was the most persnickety of all.
The age of the small farmer is past, and now agribusiness dominates the American farming community.
Forbidden: Not allowed, prohibited. You use the word forbidden as follows: Farmer Jones has forbidden us from entering his vegetable patch.
tentant farmer is one who resides on and farms land owned by its or there landlord.
the farmer hoed the plants