OMAHA (DTN) -- Retail fertilizer prices continue to be mostly higher than a month ago, according to retailers tracked by DTN for the fourth full week of May 2026.

Two fertilizers were less expensive while the remaining six fertilizers were slightly more expensive. DTN designates a significant move as anything 5% or more.

The two fertilizers that were lower-priced were urea, which was 5% less expensive with an average price of $823/ton. UAN32 was just slightly lower and had an average price of $585/ton.

The six fertilizers slightly higher in price compared to last month were DAP with an average price of $914/ton, MAP $953/ton, potash $494/ton, 10-34-0 $723/ton, anhydrous $1,118/ton and UAN28 $530/ton.

On a price per pound of nitrogen basis, the average urea price was $0.90/lb.N, anhydrous $0.68/lb.N, UAN28 $0.95/lb.N and UAN32 $0.91/lb.N.

The chairman of the Federal Trade Commission (FTC) told a group of farmers gathered in Texas last Tuesday that the commission is investigating anticompetitive behavior in the fertilizer industry. DTN's Chris Clayton reported the FTC would need farmers' help to bring a case against the industry (https://www.dtnpf.com/…).

More than 100 corn farmers from as many as 18 states organized their own field hearing with the FTC staff and Chairman Andrew Ferguson at a farm about an hour north of the Dallas metro area. Farmers pointed to consistently high fertilizer prices while arguing that a small number of fertilizer suppliers are profiting at the expense of hundreds of thousands of farmers.

"We want the commission to understand how the prices move here in the United States," Ohio farmer John Settlemyre said. "We want them to understand what substitution looks like when there isn't any."

Ferguson told the farmers in attendance the FTC has launched an investigation into the fertilizer industry. He pointed to USDA data showing the single-largest rise in input costs for farmers since 2020 has come from fertilizer prices.

All eight fertilizers are now higher in price compared to one year earlier.

Potash is 4% higher, 10-34-0 is 8% more expensive, both DAP and MAP are now 15% higher, UAN32 is 18% more expensive, urea is 24% higher, UAN32 is 27% higher and anhydrous is 44% more expensive looking back to last year.

DTN gathers fertilizer price bids from agriculture retailers each week to compile the DTN Fertilizer Index. DTN first began reporting data in November 2008.

In addition to national averages, MyDTN subscribers can access the full DTN Fertilizer Index, which includes state averages, here: https://www.mydtn.com/….

The U.S. Department of Transportation Federal Motor Carrier Safety Administration (FMCSA) issued a waiver for the transportation of fertilizer products in certain states last week. You can read about it here: https://www.dtnpf.com/….

Russ Quinn can be reached at Russ.Quinn@dtn.com

Follow him on social platform X @RussQuinnDTN

(c) Copyright 2026 DTN, LLC. All rights reserved.