| ⚠ ACTIVE IRAN CONFLICT – Day 19 – The Strait of Hormuz handles 43% of global seaborne urea and 44% of global seaborne sulphur. Both are effectively blocked as of March 18, 2026. This article draws on Navadhi’s 77-page intelligence report published today – the most comprehensive available analysis of the crisis’s impact on global fertilizers. |
I want to start with something personal.
When I began building Navadhi’s Global Fertilizer Market Strategic Research Report in January 2026, I was focused on a straightforward analytical question: where is this USD 226 billion market heading over the next six years? I was writing about the structural crossing of Specialty & Biofertilizers over Potash by 2030, about the geopolitical bifurcation of supply chains, about the green ammonia transition, about nano-fertilizer globalisation.
I was not writing about a war.
By the time we published that report – March 18, 2026 – the world had fundamentally changed. US-Israel strikes on Iran began February 28. By Day 19, the Strait of Hormuz was effectively closed. QatarEnergy had declared force majeure. At least 21 ships carrying approximately one million metric tonnes of fertilizer were physically stranded in the Persian Gulf. And China had announced it would not export urea until August 2026.
We published a second report on the same day: a 77-page real-time intelligence assessment of what the Iran War is doing to the global fertilizer industry.
This post is my personal account of what that research revealed – and why I believe the implications are not just about fertilizer prices, but about food security for hundreds of millions of people who are not in the news cycle.
| $683+/MT Urea NOLA Peak Up from $516 on Feb 27 | 65–70% Seaborne Supply Cut Urea withdrawn in 19 days | 21 Ships Stranded ~1 million MT stuck in Gulf | +44% Peak Surge Largest w/w rise this decade |
Why Fertilizer Is Not Just a Commodity Story
Most people do not think about fertilizer until something goes wrong. In normal times, it is background infrastructure — the invisible input that allows the world’s farmers to produce enough food to feed eight billion people. In abnormal times, it is the first upstream indicator of a food crisis, arriving months before the shortages become visible at the grocery store or the humanitarian agency.
The 2022 Russia-Ukraine war gave us a warning. Russia and Belarus together supplied a significant share of the world’s potash. Russia also supplied a meaningful share of ammonia and urea. When those supply chains were disrupted, fertilizer prices doubled and then tripled. Farmers in India, Brazil, Sub-Saharan Africa, and Southeast Asia reduced application rates. The yield losses from under-fertilisation in 2022 contributed to the global food price inflation that disproportionately affected the world’s poorest populations throughout 2022–2023.
The 2026 crisis is structurally more dangerous on every dimension that matters.
The Hunger Chokepoint — What the Strait of Hormuz Actually Controls
I use the phrase ‘hunger chokepoint’ because it is analytically accurate, not because it is dramatic.
The Strait of Hormuz is a 33-kilometre-wide waterway separating Iran from the Arabian Peninsula. Through it, in normal conditions, transit:
▸ 43% of global seaborne urea Urea is the world’s most widely used nitrogen fertilizer. The Persian Gulf’s concentration of low-cost gas-to-fertilizer production — built over four decades at Saudi Arabia’s Ma’aden, Qatar’s QAFCO, UAE’s FERTIL, and Iran’s own massive production complexes — makes the Gulf the single most important source of traded nitrogen on earth.
▸ 44% of global seaborne sulphur This is the number almost nobody is reporting. Sulphur is not a fertilizer itself — it is the essential processing input for converting phosphate rock into DAP and MAP, the phosphate fertilizers that supply phosphorus to crops. Without sulphur, the world’s largest phosphate producer — Morocco’s OCP Group — cannot convert its own rock into fertilizer regardless of how much demand exists.
▸ 23–30% of global merchant ammonia Ammonia is the feedstock for ammonium nitrate, UAN, and numerous other nitrogen compounds, as well as a direct soil application in some markets.
| Here is what makes 2026 categorically different from 2022: the Strait closure does not just affect the price of fertilizer. It affects the physical availability of nitrogen AND the physical availability of the processing input for phosphate — simultaneously, during the three-week window when spring planting decisions are being finalised across the Northern Hemisphere. |











