The Green Markets North American fertilizer price index rose for a second week to $725.10 per ton, up 2.5 percent from last Friday. The index rose to its highest price since the week ending Aug. 29.

Wholesale urea prices increased over the past month, pushing the index higher. MAP prices also increased slightly through January. Corn Belt potash prices rose following weeks of declines.

Nitrogen fertilizer prices saw a sizable spike this week, as supply concerns remained in focus. Ammonia was steady throughout January after falling from its fall peak, but prices in Tampa surged by $40 this week. Meanwhile, urea prices have firmed in recent weeks after China halted urea exports through the first half of this year. UAN prices also spiked higher this week, rising to the highest since mid-November.

Tight global supplies have kept upward pressure on phosphate prices to end 2025. U.S. inventories will likely remain constrained after China suspended exports through the third quarter of this year, according to Bloomberg analysts. China represents about 30 percent of global trade – when they are trading. DAP affordability in relation to corn prices remains at a record low, driven by supply constraints and large corn plantings last season.

U.S. DAP/MAP imports for January through November 2025 totaled 1.18 million tons, down 45 percent year-over-year, according to the U.S. Census Bureau this week. Monthly data continued to reflect very low imports, with total shipments at the lowest for the period since 2015.

That doesn’t bode well after U.S. farmers reportedly planted about 99 million acres of corn last year. The Corn:Soybean ratio continues to favor corn plantings this upcoming season even if acreage normalizes with the typical crop rotation.

The US Department of Commerce will begin a sunset review on US phosphate duties in March. That includes anti-dumping duties on imports from Morocco, which have largely limited fertilizer imports since 2021. However, the duties are expected to survive the review and continue to restrict fertilizer flows.

Potash prices remain fairly priced compared to corn prices. Inventories have been adequate due to limited supply disruptions for North American producers. U.S. potash imports for the first 11 months of 2025 reached 13 million tons, down 8 percent year-over-year. Still, shipments were the third-largest out of the past five years, as Canada remained a reliable supplier.

President Donald Trump recently threatened to impose hefty tariffs on Canada in response to Canada trying to shore up trade relations with China. Potash imports from Canada represent more than 80 percent of total shipments, which would be vulnerable to tariffs.

Check out the latest fertilizer import data from the U.S. Census Bureau below. The agency will release December data on Feb. 19 and should resume its normal reporting in March.

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