The Nitrogen Chokepoint: Why Fertiliser Disruption Is the Slow-Burning Catastrophe Inside the Hormuz Crisis
If you wanted to design a slow-burning catastrophe — one whose consequences would unfold over months and years rather than days and weeks, affecting hundreds of millions of people before the connection to its origin became fully visible — you could not do better than a disruption to the global nitrogen fertiliser market. Nitrogen is the element that feeds half of humanity. The Haber-Bosch process for synthesising ammonia from atmospheric nitrogen — one of the most important technological achievements in human history — is what made it possible to feed eight billion people from the finite agricultural land on earth. And the Strait of Hormuz is a critical node in the global supply chain for the natural gas that feeds that process.
How Fertiliser Gets From Gas to Field
The journey from natural gas molecule to nitrogen fertiliser in a field in Kenya or Brazil starts in the gas wells of Qatar, Saudi Arabia, and the UAE — countries that use their abundant and cheap gas not just for power generation but as the feedstock for industrial-scale ammonia synthesis. The ammonia is then processed into urea (the world's most widely traded nitrogen fertiliser), ammonium nitrate, or other nitrogen compounds, loaded onto tankers, and exported globally.
The Persian Gulf region is responsible for approximately 15–20% of global urea production and a higher proportion of global urea exports, because Gulf producers have a decisive cost advantage over producers in Europe or the United States whose gas prices are much higher. When the Strait of Hormuz closes, Gulf urea cannot get out by sea, and the world must source the same quantities of fertiliser from higher-cost producers who either lack spare capacity or can only supply at significantly elevated prices.
The Price Transmission
Urea prices respond to supply disruptions with a speed and sensitivity that reflects how tightly the global fertiliser market operates. In normal conditions, the market is already running with relatively thin inventories — fertiliser is expensive to store, and just-in-time procurement has become standard practice for distributors and traders. A sudden reduction in Gulf export capacity therefore hits a market with limited buffer, producing sharp price spikes that transmit quickly to farm-gate fertiliser prices around the world.
The price increase from $475 to $680 per metric ton since the Hormuz closure began represents a 43% rise in six weeks — a pace of increase last seen during the 2022 Russian invasion of Ukraine, when Russia's role as a major fertiliser exporter was suddenly in question. The 2022 spike contributed directly to reduced fertiliser use across South Asia, Africa, and Latin America in the 2022 and 2023 planting seasons, with yield consequences that persisted for two agricultural cycles.
The Long Tail
The most important thing to understand about fertiliser disruptions is that their food security consequences are not felt immediately — they arrive in the form of reduced harvests six to twelve months after the disruption occurs, and they persist for one to two years beyond that as depleted soil nutrients reduce yields even after fertiliser supply normalises. The food price impacts of a disruption in March 2026 will be most visible on dining tables and in market stalls from September 2026 through 2027.
This temporal lag is one of the most dangerous features of the current crisis. The political attention and international response capacity that currently exists is focused on the immediate energy price spike and the naval standoff in the Gulf. By the time the food security consequences become fully visible — in falling harvests, rising malnutrition rates, and escalating food import bills across the developing world — the political window for preventive action will have closed, and the response will be reactive rather than anticipatory. The nitrogen chokepoint is the slow catastrophe hiding inside the fast one.