Amid “a growing sense of risk in the farm sector,” bankers across the U.S. are demanding farm real estate as collateral on short-term operating loans, says the Ag Finance Databook compiled by the Kansas City Fed. Real estate provided one third of the collateral on loans of $250,000 or more issued during the summer vs. 10% a year earlier. It was an abrupt reversal of the five-year decline that began during the ag boom. Interest on non-real estate loans is shifting higher. Some 85% of loans carry a floating rate, for only the second time since 1977.