The reason land is coming down soft, and it is coming down, is lots of cash and low interest rates. That's what is keeping rents up and that's whats keep land up. Farmers in the US are burning up cash and when that runs out then you will see some big drops in land and rents.
Its happening in some areas already. It's happening in land sales for sub grade A farm land, even on Class A with tile its now 12,000 or so instead of 14,000. That's about 8% per year drop in price. Lower B/C farms have dropped over 10% per year here. There are of course exceptions in certain sales and neighborhoods.
 That's my perspective