I was an intern at the IH Research and Engineering Center on County Line Road in Hinsdale, IL when this
http://www.antiquefarm.org/mainsite/museum/turbine_tractor.html
turbine machine was in the building. I never touched it, but was told the concept failed because of high fuel consumption, noise, and expense. I saw it and heard it run. Never did see it plow or operate in the fields. I didn't think the noise was that bad, but the higher frequencies disturbed the livestock or something.
The same tractor was on display in the Smithsonian when we took the boys to DC a few years ago. The younger couldn't grasp that I was that old. Something I knew about was already in the museum. He was floored.
These small turbines have been around for decades. Marine tac air used turbine driven air compressors to start their F4s in Vietnam. That was noisy.
Good on this guy in Kansas. Hope he finds something that can be a commercial success. Many others have tried and failed.