Up in 2009, but as the saying goes, 'Real estate is local.' This survey notes the differences in cropland and rangeland values in addition to the impact of regulatory concerns on cropland.
More info at:
http://cornandsoybeandigest.com/ag-issues/agricultural-land-values-up-0316/index.html
http://www.agecon.unl.edu/realestate.html
http://www.agecon.unl.edu/Cornhuskereconomics/3-10-10.pdf
