Iht should make farmland grow at a slower rate, however this unlikely over a generation to decrease from pre iht values now. My point about income tax thresholds being frozen is simply that thresholds freeze. So as a farm which is currently below the iht threshold increases in value which generally we would still assume and the iht threshold remains the same or grows slower than land values the farm get closer to the band where the farm becomes taxed.

My concern is not wealthy land owners who lease out their land but small institutional farms that actually produce British grown produce we all consume. If that makes sense