GA pilot reported a near miss during final approach with an agriculture aircraft performing an aerobatic maneuver at the departure end of the runway and then landing on the runway before the GA pilot had exited.

Narrative

Landing ZZZ off IFR flight plan from ZZZ1. IFR was cancelled 10 miles s of runway XX and advisory calls were made on ZZZ UNICOM announcing my intention to land straight in to runway XX. The FBO desk replied to acknowledge my call and ask if I was full stop and if I would need fuel. At 3 miles; I made another transmission on UNICOM to announce that I was on short final for XX and reviewed my checklist items. When I again directed my attention outside (now at about 200' AGL on glidepath) I noticed an aircraft (an air tractor) performing an acrobatic maneuver at the far end of the runway; apparently intent on a midfield landing on XY. I then watched it bail out from this and establish a tight pattern on the west side of the runway to follow me on XX. This traffic never showed up on ADS-B and never made any radio calls. Following my landing roll; as I turned to exit at the far end of XX; I noticed the aircraft had already touched down before I had cleared.There have been too many headline garnering accidents in aviation this year. I believe the main cause of this near miss was that the air tractor did not have / utilize either ADSB or radios - we were fortunate to have not made news. Further; the airfield manager told me that per local MOU (Memorandum of Understanding); these ag aircraft are supposed to cross over midfield to enter the pattern so FBO desk can make traffic callouts on their behalf. In light of all the recent accidents this year; I believe it is time for the FAA to force all categories of aircraft flying within class E to be ADSB compliant and to be equipped with - and utilize -functioning two-way radios.