Tractors increase a farm's cultivation area and productivity while reducing the workforce requirement. Tractors also consume fuel.
Tractor Barn is an Agricultural Improvement module for crop farms, which improves the efficiency of crop farms when provided with Fuel. It consumes 1 ton of fuel every 5 minutes (0.2 tons per minute), so by default one Fuel Station can support up to 20 tractor barns. When operational, it increases the productivity of its crop farm by +200%, makes it provide extra ton of the product every 3rd cycle and decreases the workforce required by 50%. The downside is that farms with tractor barns require +50% more fields to reach maximum productivity. Effectively, with no other bonuses being active, a farm with a tractor barn has its output increased to 400%.
Tractor Barn requires Bright Harvest DLC and can be built in the Old World (and Cape Trelawney), the New World and Enbesa. It has to be adjacent to the crop farm's main building or to its other modules, and it needs its own road connection to the Fuel Station. Each crop farm can have only one tractor barn.