Iowa crop land values fell 3.7 percent during the past six months, continuing a downturn that began after land prices peaked in 2013, according to the Iowa Realtors Land Institute.

"For the most part, it’s a very uniform reduction across the state," said land values survey coordinator Kyle Hansen, an agent with Hertz Real Estate Services.

All nine Iowa crop-reporting districts showed a decrease in the average land values, ranging from 1.9 percent in west-central Iowa to 5.4 percent in the south-central district.

However, the south-central district showed an increase in prices for low-quality land, which Hansen said is likely due to competition for pasture land. High ...