The Fertilizer Lag: What the Iran Conflict Means for Grocery Prices and Crop Yields

The natural gas price spike and oil shock from the Iran conflict reached consumers within days. Fertilizer is a slower story, but the math is already moving.

Between the weeks ending February 27 and March 6, the price per short ton of urea imported into the United States jumped 30 percent, according to data from The Fertilizer Institute. In New Orleans, a major domestic fertilizer trading hub, urea prices have risen from $475 per metric ton to $680 per metric ton since the conflict began, according to Darrell Fletcher, managing director of commodities at Bannockburn Global Forex. Globally, the price of urea has crossed $600 per tonne, up from $450 the week prior, according to Euronews. These figures represent what happens in the first two weeks of a disruption. What happens over the next six to eight weeks, during the Northern Hemisphere’s spring planting window, will determine how much of this input shock eventually reaches grocery shelves.

What’s Stuck in the Gulf

Commodity intelligence platform Kpler, tracking vessel movements in real time as of March 11, reported 23 vessels carrying fertilizer anchored or loading in the Middle East Gulf with no clear transit path. Only one vessel has exited the Strait of Hormuz since the conflict began on February 28: the KSL Hengyang, carrying 51,500 tonnes of sulfur, which transited on March 7. No other fertilizer-laden carrier has followed. Insurance cancellations by major providers effective March 5 have made Gulf transit economically unviable regardless of military conditions, and the few ships testing the route are doing so under Chinese ownership and crew, the only flag showing any transit willingness so far.

The scale of the chokepoint matters. UNCTAD, in a rapid analysis released this week, estimates that roughly one-third of global seaborne fertilizer trade, approximately 16 million tonnes annually, transits the Strait of Hormuz. The Fertilizer Institute puts the exposure more specifically: countries west of the Strait account for nearly half of global urea exports and half of global sulfur exports. Saudi Arabia, the leading supplier of phosphate imports to the United States, is among the exporters with product stranded. QatarEnergy, which operates Ras Laffan, the world’s largest liquefied natural gas liquefaction and industrial complex, has halted urea, ammonia, and methanol production following Iranian drone strikes on the facility, according to Food Ingredients First.

None of this is buffered by strategic reserves the way oil is. Joseph Glauber, research fellow emeritus with the International Food Policy Research Institute’s director general’s office, has noted that fertilizers are largely made-to-order against seasonal demand, not warehoused in depth, because the cost of storage makes it more economical to buy as needed. There is no fertilizer equivalent of the IEA’s 400-million-barrel emergency oil release announced this week.

The Spring Timing Problem

Fertilizer is applied at the start of the crop cycle, not the end. Corn, soybeans, wheat, and rice all require nitrogen application before or at planting, and application rates set early in the season largely determine yield months later. The spring window in the U.S. Midwest is narrow, typically running from late March through mid-May depending on crop and region. Farmers who cannot secure affordable supply in time face a binary choice: apply at reduced rates and accept yield risk, or shift acreage toward less nutrient-intensive crops. The American Farm Bureau Federation’s market intelligence team noted in a recent analysis that farmers are already, anecdotally, weighing a shift away from corn toward soybeans to reduce fertilizer exposure.

Wolfe Research chief economist Stephanie Roth, in a note published Tuesday, estimated that if the disruption persists, food-at-home inflation could rise by roughly two percentage points, adding approximately 0.15 percentage points to headline U.S. inflation on top of the roughly 0.40 points from energy. The Bureau of Labor Statistics reported Wednesday that food-at-home inflation was already running at 2.4 percent year over year in February, before the conflict started. The USDA’s February 2026 Food Price Outlook, released earlier this month, had projected food-at-home prices to rise 2.5 percent for the full year under stable conditions, roughly in line with historical averages. The Roth scenario would roughly double that trajectory for the food-at-home component if disruptions continue through the planting window.

Veronica Nigh, chief economist at The Fertilizer Institute, framed the pass-through risk in direct terms. “This is a global impact on fertilizer costs,” she said, adding that consumer cost pass-through in this scenario would be substantially greater than anything the market has seen before.

The Lag in the Supply Chain

The reason food inflation from a fertilizer disruption is not immediate is structural. David Ortega, professor of food economics and policy at Michigan State University, explained in recent public commentary that on-farm input costs represent only a fraction of what consumers pay at retail. Processing, packaging, and transportation account for a larger share, and transportation in particular runs on diesel, not fertilizer. Patrick Penfield, professor of supply chain practice at Syracuse University, noted that fuel accounts for 50 to 60 percent of the total operating cost of shipping goods by sea, meaning the energy shock and the fertilizer shock are amplifying each other through different timelines across the same supply chain.

The near-term effect at retail is primarily logistics-driven. Rerouting vessels around Africa’s Cape of Good Hope adds roughly $1 million per voyage in fuel costs and weeks of delivery time, according to Food Ingredients First, affecting not just fertilizer but every ingredient category moving through Gulf ports. The Chartered Institute of Procurement and Supply warned in recent research that rising costs of transport, energy, and raw materials could drive consumer goods prices substantially higher across 2026. Ed Anderson, professor of supply chain and operations management at the McCombs School of Business at the University of Texas, was direct about the corporate calculus: “If the conflict is only in the short run, companies will eat it.” The longer the disruption runs, the less capacity companies have to absorb costs without passing them through.

For CPG operators, this creates different exposure depending on portfolio and contracting posture. Brands with longer-dated supply agreements for grain inputs, vegetable oils, or packaging materials face less immediate pressure than those relying on spot markets. Commodity-intensive categories, including cereals, baked goods, and animal proteins that depend on corn and soybean feed costs, will feel price transmission sooner than categories where input costs have already been largely locked in. Soybean oil, already a key ingredient across CPG categories, has reached a two-and-a-half-year price high, according to Food Ingredients First, partly reflecting demand displacement as biofuel markets compete with food uses when petroleum prices spike.

A Market Already Short on Slack

The Hormuz disruption is colliding with a phosphate supply structure that had no cushion left to absorb a second shock. China’s phosphate industry groups, operating under direction from the National Development and Reform Commission, reached a consensus in December 2025 to suspend phosphate exports through August 2026. The move, reported by Bloomberg and the American Farm Bureau Federation, has the practical force of a ban despite being framed as a voluntary industry action. Josh Linville, vice president of fertilizer at StoneX Group, told Brownfield Ag News in January that losing China from the phosphate export market through mid-summer would be “devastating,” particularly for buyers who had assumed prices would ease in the second half of the year.

That context matters for reading the current price signals. The Fertilizer Institute has noted that Saudi Arabia is now the leading U.S. phosphate supplier precisely because Chinese exports have collapsed since 2021. Saudi product moves through the Strait of Hormuz. With both the dominant historical supplier (China) and the current substitute supplier (Saudi Arabia) simultaneously constrained, global buyers are competing for product from Morocco and a short list of secondary producers that lack the scale to absorb concentrated demand.

The American Farm Bureau Federation sent a letter to the White House this week calling for U.S. Navy escorts for fertilizer vessels transiting the Strait and a temporary suspension of countervailing duties on imported fertilizer products, acknowledging directly that without prioritized delivery of urea, ammonia, and phosphate, the United States faces a meaningful shortfall in crop production. The agriculture coalition framed the issue as both food security and national security, noting that a production shock would contribute to inflationary pressure across the U.S. economy.

What Retailers and Brands Are Watching

The question most relevant to grocery operators and CPG commercial teams is not whether fertilizer prices are rising, they clearly are, but whether the disruption clears before the spring planting window closes. If Hormuz transit resumes within the next two to three weeks, reduced crop yields remain possible but likely limited. If the disruption extends into late April or May, the supply and yield mathematics become significantly harder to reverse within the current crop cycle, and price pressure would start building toward the fall harvest and subsequent contract periods.

Rerouting costs and logistics inflation are already measurable. But the larger, slower risk is a harvest shortfall late in 2026. If fertilizer application rates drop materially across the spring window, as the American Farm Bureau Federation’s market analysis warns is possible, global grain stocks for key crops including corn, soybeans, and wheat would tighten heading into harvest, pushing commodity costs higher for the 2027 contract cycle and arriving as brands and retailers are already mid-negotiation on next-year pricing. For category managers across cereal, baked goods, snacks, and packaged proteins, a grain market that was expected to be relatively stable in 2026 is now running a scenario that looks more like 2022, when disruption of agricultural inputs, not grain exports, was the central shock.

The financial markets have already begun pricing in that scenario. CF Industries hit an all-time high on Monday, with shares up approximately 10 percent over the previous week, according to CNBC, their largest multi-day gain since 2022. Domestic nitrogen fertilizer producers benefit when import prices spike and global competition for Gulf supply tightens. That dynamic also creates some offset for U.S. crop production, since domestic urea output does not depend on Hormuz access. The United States imports roughly 20 percent of total fertilizer use, with nitrogen sourced from Canada, Trinidad and Tobago, Russia, and other suppliers beyond the Gulf, according to The Fertilizer Institute. The exposure is real but partial, and the domestic production base provides a floor under availability that countries more dependent on Gulf imports, including India and several African economies, do not have.

Those downstream markets matter to CPG operators sourcing globally. Countries absorbing the full force of the disruption will be competing more aggressively for non-Gulf supply across nitrogen and phosphate markets, pushing global benchmark prices higher regardless of where specific product originates. The global integration of fertilizer markets, as The Fertilizer Institute has consistently noted, means U.S. prices respond to international supply dynamics even when the direct trade flows affected are not the primary U.S. sourcing lanes. The current disruption is testing that integration at an unusual moment: with the planting window open, Chinese phosphate constrained, and no strategic buffer available in fertilizer markets to replicate what the IEA is providing in oil.

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