Higher Fertilizer and Fuel Prices Raise Costs Heading Into Fall 2026

Farmdoc reports fertilizer and diesel prices are elevated heading into fall 2026, raising harvest costs and 2027 input expenses. Illinois anhydrous ammonia is 16% above last year, DAP 7% higher, and diesel more than 50% higher, adding pressure to crop and timing decisions.

The Bigger Picture

Higher input costs squeeze farm margins and can change what farmers plant, when they apply nutrients, and how much financial risk they carry. The story also shows how geopolitical conflict can quickly move through fertilizer and fuel markets into U.S. farm economics and food-system resilience.