Retail fertilizer prices showed mixed movement during the final week of May 2026, but the bigger story is that American farmers are still paying dramatically more for crop nutrients than they were a year ago. While urea prices declined 5% month over month, six major fertilizers moved higher and every major nutrient category remains above 2025 levels. The trend matters because fertilizer is one of the largest operating expenses on U.S. farms, directly affecting corn, soybean, wheat, and livestock feed production costs, as well as overall farm profitability.

For many producers, the modest decline in urea offers little relief when compared to the broader reality: input costs remain historically elevated, commodity markets remain volatile, and many growers are heading into another season of tight margins.

Bioinputs

Tank Mix Compatibility Emerges as a New Challenge for Biological and Chemical Crop Protection Programs

Fertilizer Prices Ease Slightly, but the Pressure Isn't Going Away

The most notable monthly change came from urea, which fell to an average retail price of $823 per ton, making it the only fertilizer to record a significant decline during the latest survey period.

UAN32 also moved slightly lower, averaging $585 per ton.

However, most fertilizers continued moving upward:

The most expensive product remains anhydrous ammonia, a critical nitrogen source widely used in corn production. At $1,118 per ton, its price continues to raise concerns across the Corn Belt.

Retail Fertilizer Price Trends Show a Sharp Year-Over-Year Climb

Dry Fertilizers

Liquid Fertilizers

The Real Story: Every Major Fertilizer Is More Expensive Than Last Year

The latest numbers reveal a troubling trend for growers.

Every major fertilizer tracked is now more expensive than it was one year ago, highlighting how persistent inflationary pressure remains throughout the agricultural supply chain.

The largest annual increases include:

• Anhydrous ammonia: +44%
• UAN28: +27%
• Urea: +24%
• UAN32: +18%
• DAP: +15%
• MAP: +15%
• 10-34-0: +8%
• Potash: +4%

These increases are especially important because fertilizer expenses can represent 20% to 35% of total crop production costs, depending on the operation and crop mix.

For many corn growers, the combination of higher fertilizer costs, uncertain grain prices, and elevated borrowing expenses continues to squeeze profit margins.

Federal Investigation Signals Growing Concern Over Fertilizer Markets

The fertilizer pricing debate is now attracting attention in Washington.

Federal regulators recently confirmed an investigation into potential anti-competitive practices within the fertilizer industry, following concerns raised by producers across multiple states.

More than 100 corn farmers participated in a public meeting with regulators, arguing that fertilizer prices have remained stubbornly high despite shifts in global supply conditions.

Officials noted that according to USDA data, fertilizer has been among the fastest-growing farm input expenses since 2020, contributing significantly to higher production costs across American agriculture.

The investigation could become a major issue for the farm sector if regulators determine that market concentration has reduced competition and contributed to elevated prices.

Why This Matters for Farmers in 2026

The decline in urea may grab headlines, but the broader message is clear: fertilizer remains one of the biggest financial challenges facing U.S. agriculture.

As growers prepare budgets for upcoming planting decisions, many are increasingly relying on:

• Precision agriculture technologies
• Variable-rate nutrient applications
• Soil testing programs
• Data-driven fertilizer management
• Input cost optimization strategies

The goal is simple: maximize yields while protecting margins in an environment where fertilizer prices remain far above pre-2020 levels.

For now, the market is sending mixed signals. One fertilizer may be getting cheaper, but the overall cost burden on American farmers remains stubbornly high-and that continues to shape planting decisions, farm profitability, and the future of U.S. crop production.