Fertilizer prices across the United States increased significantly in late March 2026, with all major nutrients posting monthly gains, adding to financial pressure on farmers ahead of spring planting. The rise in prices is influencing crop planning, fertilizer application decisions, and farm budgets across key producing regions.

The most notable increase was in urea, which rose 34% month over month to an average of $838 per ton, making it the main driver behind higher nitrogen fertilizer costs. Other nitrogen products also recorded substantial increases, with UAN28 and UAN32 both up 21%, while anhydrous ammonia increased 18% to $1,060 per ton.

Dry fertilizers showed more moderate movement. DAP averaged $863 per ton, MAP reached $917, and potash was priced at $489, all slightly higher than the previous month. While less dramatic, these increases continue to contribute to elevated overall input costs for crop production.

On a nitrogen basis, urea averaged $0.91 per pound, compared to $0.65 for anhydrous ammonia, reinforcing differences in cost efficiency among nitrogen sources and influencing purchasing decisions.

Fertilizer Price Index Trends

The index shows a steady upward trend, with a noticeable jump at the end of March 2026, particularly in liquid fertilizers.

Market conditions suggest that strong seasonal demand and tightening supply are supporting higher prices. Many producers have already secured a portion of their fertilizer needs, but others continue to face challenges as prices rise and margins tighten.

Survey data indicates that about 65% of farmers have pre-purchased their fertilizer, while others report partial coverage or financial strain due to higher costs. This reflects a mixed situation where supply is available, but affordability remains a concern.

Year-over-year comparisons show sustained increases across all nutrients. Urea is up 48% compared to last year, while anhydrous ammonia and UAN28 have risen 38%, and UAN32 is up 34%. Even potash has increased 6%, confirming a broad upward trend across fertilizer markets.

These developments are expected to influence crop mix decisions, fertilizer application rates, and risk management strategies. Higher input costs may lead some producers to adjust acreage or reduce application levels, with potential implications for yields and commodity markets.

As planting progresses, fertilizer prices will remain a key factor shaping the economic outlook for U.S. agriculture, particularly in a season already defined by tight margins and uncertain market conditions.