Many farmers run their tires with tubes, which can save a lot of money down the road on tire repair and replacement. In fact, a tube, just like a tire, can be patched, and if it needs to be replaced, it can be purchased for a fraction of the price of a new tire. That being said, if you can see the tube through the tire, then the tire should probably be replaced. Otherwise, you’re going to be fixing that tube constantly.
If you prefer a tubeless tire—and many farmers do—sealants can help hold in the air. Be mindful in buying sealants that the one you use is non-corrosive. Some contain certain salts that will corrode the tire rim and ruin it over time.