Tractor Barns are special modules for crop farms, added in Bright Harvest DLC, which improve the productivity of crop farms and decrease the workforce needed in exchange of increasing the number of fields needed. Tractor Barns need fuel to operate and they consume 1 fuel every 5 minutes.
Tractors increase the productivity of crop farms by +200% and provide extra product every 3rd cycle, they also decrease the workforce required by 50%. The downside is that farms with tractor barns require +50% more fields to reach maximum productivity.
They need to be built right next to the farm building and they need their own road connection to the fuel station, which supplies them with fuel.
Each crop farm can have only one tractor barn.