​​The Strait of Hormuz is the most important transit route not just for oil but also for fertilizers. Persian Gulf countries account for about 46 percent of global seaborne urea transit and around 30 percent of ammonia transit. These nitrogen compounds are integral for efficient cultivation of almost every food crop. However, their shipping from the Persian Gulf is almost completely paralyzed.

Disruptions to maritime transit through the strait have already triggered a sharp surge in nitrogen and phosphorus fertilizer prices. According to Platts, as of March 19, the free on board (FOB) price for Middle East granular urea rose to $604–710 per ton, up from $436–494 before the start of the war. The Southeast Asia granular urea was at $750 per ton on March 19, up from $490–498 in late February. While these prices are still below the 2022 record highs, they continue to grow.

Furthermore, unlike with oil, there are no strategic reserves of urea, no alternate pipelines for ammonia, and no military escort programs. Saudi Arabia has created infrastructure to export oil bypassing the Strait of Hormuz, but no such solutions exist for fertilizers.

The lag between disruptions in fertilizer supply and rising food prices is measured in seasons rather than days. A farmer who doesn’t have access to urea at the start of the planting season might use less fertilizer, switch to a different crop, or forgo planting altogether. This decision affects the harvest in three to six months, and takes longer still to impact supermarket prices. Today we are at the very beginning of this cycle.

The UN World Food Program estimates that the number of people experiencing acute food insecurity could rise by 45 million to a record-high 363 million if the war in Iran doesn’t end by mid-2026, and oil prices remain above $100 a barrel.
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