How a Strait Disruption Shook the Corn Belt

Middle East disruptions push urea past $650/ton, cutting corn acreage 3% and squeezing food and fuel supply chains

13 Apr 2026

A sharp rise in global urea prices is reshaping planting decisions across the United States ahead of the 2026 growing season, as disruptions to shipping through the Strait of Hormuz reduce the supply of nitrogen fertiliser available to American growers.

Urea prices climbed from around $500 to more than $650 per metric tonne following an escalation of Middle East tensions in early March. Some spot markets cleared above $800 a tonne. The increase lifted estimated nitrogen costs for corn production to $166 per acre, according to industry estimates, a level that has prompted many farmers to shift toward soybeans, which draw nitrogen from the atmosphere and carry lower input requirements.

USDA data show corn acreage intentions for 2026 fell to 95.3 million acres, a 3% decline from the prior year. The shift has consequences beyond farm economics. Reduced corn supplies are expected to raise livestock feed costs and compress margins for corn-based ethanol producers, tightening cost conditions across both food and fuel supply chains.

Rabobank's semi-annual fertiliser outlook, published on 7 April, found that its affordability index has moved into negative territory, with nitrogen and phosphate prices rising faster than crop commodity values. The bank cautioned that even a de-escalation of geopolitical tensions would bring only limited relief, citing physical damage to export infrastructure in the affected region as a factor that will slow any supply recovery. The report characterised 2026 as a year of prolonged price pressure, with modest improvement expected only in the second half.

The episode is accelerating two longer-term shifts in US agriculture. Domestic nitrogen producers, including CF Industries and Nutrien, are drawing increased attention from buyers seeking to reduce exposure to import disruptions. Separately, precision application technologies that allow farmers to reduce fertiliser volumes without cutting yields are attracting greater interest from cost-pressured growers.

Whether domestic supply capacity can expand quickly enough to offset continued import constraints remains an open question, particularly given that infrastructure repairs in affected export regions are likely to extend well into the second half of the year.