By Lukie Pieterse, editor/publisher Potato News Today
As conflict disrupts fertilizer flows, fuel markets, and freight routes, potato growers worldwide face rising input uncertainty.
The current war in the Middle East is no longer only a geopolitical and humanitarian crisis. It is also becoming an agricultural risk event with real and potentially lasting consequences for potato growers around the world. What may appear at first glance to be a distant conflict is now affecting some of the most practical elements of farming – fertilizer access, input pricing, energy costs, shipping reliability, and the economics of storage and transport.
At the center of the issue is the Strait of Hormuz, one of the world’s most important maritime chokepoints. UN Trade and Development says the strait handles roughly a quarter of global seaborne oil trade, a major share of liquefied natural gas, and significant fertilizer traffic, and its latest briefing shows vessel transits through the corridor falling sharply in early March.
For the potato sector, this matters in immediate and practical ways. Potatoes are a relatively input-sensitive crop. Fertility programs need to be well timed and well balanced, and many production systems depend heavily on nitrogen, potash, phosphorus, diesel, electricity, and dependable transportation. When one of the world’s main energy and fertilizer corridors is disrupted, potato growers can feel the impact quickly – either through higher invoices, delayed deliveries, or added uncertainty when planning the next crop.
Why potatoes are especially exposed
Potatoes are not the most fertilizer-intensive crop in every farming system, but they are highly responsive to nutrient management, especially nitrogen. Michigan State University notes that optimizing nitrogen use in potatoes is critical because it affects tuber quality, storability, groundwater protection, and production cost. The University of Idaho likewise states that potatoes have high nutrient demands, citing approximate needs of 220 pounds of nitrogen, 30 pounds of phosphorus, and 300 pounds of potassium per acre to produce a 450 cwt./acre Russet Burbank crop in southern Idaho.
That is why any sustained rise in fertilizer prices matters for potato growers. This is not simply a bookkeeping issue. Poorly timed or underapplied fertility can influence yield, tuber size profile, crop uniformity, and storage performance. In other words, an input shock at planting can echo through the full potato value chain, from field to cellar to processor or fresh market buyer.
The fertilizer threat is already real
This is not a hypothetical future concern. Reuters reported on March 13 that the war-linked disruption to trade through Hormuz had already pushed fertilizer prices sharply higher and left U.S. and Canadian farmers struggling to secure supply ahead of spring planting. Reuters said fertilizer prices had risen more than 30% in some cases and quoted The Fertilizer Institute as saying the U.S. market can at times be roughly 25% short of usual spring urea supply.
IFPRI, in a March 6 analysis, warned that the conflict had disrupted exports of urea, ammonia, phosphates, and sulfur through the Gulf, while also lifting natural gas costs that underpin nitrogen fertilizer production. It said that 20% – 30% of global fertilizer exports move through the Strait of Hormuz. Reuters, citing analysts, separately reported that more than 30% of global nitrogen fertilizer exports move through the corridor. The precise share varies by product and estimate, but the underlying reality is clear: a major portion of the global fertilizer trade is exposed to disruption in that waterway.
One Reuters report quoted StoneX analyst Josh Linville saying, “Literally, this could not happen at a worse time of the year.” That is especially true for growers entering narrow planting and fertilization windows.
What this means for potato growers on the ground
For potato farmers, the issue is bigger than fertilizer price alone.
First, higher fertilizer costs directly pressure margins. Potatoes are already expensive to grow compared with many broadacre crops because they require careful nutrient management, multiple field passes, seed handling, crop protection, grading, and often irrigation. A sudden jump in nitrogen or phosphate costs can materially alter the economics of an acre of potatoes, especially where contracts are already fixed or where open-market returns remain uncertain.
Second, delayed input movement can be as serious as high pricing. Modern fertilizer distribution often operates on a just-in-time basis. Reuters quoted Veronica Nigh of The Fertilizer Institute describing the business that way. Potato growers who cannot secure the right product at the right time may be forced into suboptimal application decisions, substitutions, or reduced rates – none of which is ideal in a crop where agronomic precision matters.
Third, energy costs could become a major secondary burden. IFPRI reported that oil and gas prices rose sharply after the conflict escalated, reflecting the market’s concern over disrupted fuel and LNG movement through the Gulf. For potato farming, higher energy prices affect field operations, irrigation pumping, transport, refrigeration, forced-air ventilation, and long-term storage management.
Storage may become part of the problem
This is a particularly important issue for the potato sector because potatoes are not only grown – they are stored, often for long periods and under carefully managed conditions. Unlike many field crops that are sold and shipped relatively soon after harvest, potatoes may remain in storage for months, especially in table, seed, and processing systems.
That means electricity and fuel costs matter in a more sustained way. While storage systems differ widely by region and scale, energy is an unavoidable part of keeping potatoes in marketable condition through ventilation, cooling, humidity control, monitoring, and handling. Research from Michigan State University on low-cost storage systems underscores how important energy use is in designing and operating produce storage, including efforts to reduce electricity needs while maintaining crop quality.
If war-related energy disruptions persist, potato farms with heavy storage reliance could feel a double squeeze – higher production costs during the growing season, followed by higher storage costs after harvest.
Processors, fresh markets, and exporters are not immune
The ripple effects extend beyond the farm gate. Potato processors depend on a stable flow of raw product, predictable freight, and energy-intensive operations. Fresh potato supply chains also rely on affordable trucking, packaging, handling, and retail distribution. When fuel prices climb or shipping insurance rises, those costs do not stay neatly confined to international trade lanes.
IFPRI noted that energy prices feed into both production costs and post-farmgate costs across food systems. In the potato industry, that can include hauling from field to storage, storage to packer, packer to processor, processor to customer, and exporter to destination market. The longer the disruption lasts, the greater the chance that these accumulated costs begin to reshape procurement decisions, contract negotiations, and market behavior.
The future risk may be even more important than the current one
At present, not every potato grower will feel the same pain immediately. IFPRI has noted that some Northern Hemisphere farmers may have already secured part of their fertilizer needs before the disruption worsened. That could soften the immediate blow in certain regions. But it does not remove the broader threat.
If the conflict drags on, several longer-term risks become more serious.
One is continued volatility in fertilizer markets. Another is prolonged disruption to gas supply and fertilizer production in the Gulf. Reuters reported that QatarEnergy had halted production at the world’s largest single-site urea plant after losing natural gas feedstock, while sulfur output was cut elsewhere in the Middle East. Events like that matter because they affect not only freight movement, but also actual fertilizer production capacity.
A second risk is that governments respond with protective trade policies that make tight markets even tighter. IFPRI warned that the world has seen this pattern before during earlier crises, when countries reacted by restricting exports or prioritizing domestic markets. Such steps may be politically tempting, but they can worsen price spikes for import-dependent regions.
A third risk is that farmers adjust planting intentions or input use in ways that affect supply later on. IFPRI said higher fertilizer costs could push some producers toward less input-intensive crops or lower fertilizer rates. For potato growers, that does not necessarily mean a rapid shift away from potatoes, especially where contracts or rotations limit flexibility. But it does mean tighter decision-making, more caution, and potentially more reluctance to expand acres unless margins justify the risk.
A warning signal for a globally connected potato industry
The potato industry has become deeply globalized. Seed, fertilizer, crop protection products, machinery, processing ingredients, energy, packaging, and finished products all move through interconnected systems. That connectivity creates opportunity, but it also creates vulnerability.
The current Middle East war is exposing that vulnerability in real time. The most immediate concern is the effect on fertilizer flows and prices linked to the disruption of the Strait of Hormuz. But the wider lesson is that potato farming everywhere is now influenced by events far beyond the farm. A military escalation in one of the world’s key shipping corridors can quickly translate into tighter fertilizer supply in North America, market anxiety in Asia, cost pressure in Europe, and broader uncertainty across the global food economy.
That does not mean catastrophe is inevitable. Markets can adapt, alternative sourcing can emerge, and governments can choose to keep trade channels open rather than worsen instability. But it does mean potato growers, storage managers, processors, and industry leaders have reason to watch the situation very closely.
For now, the clearest conclusion is also the most sober one: the war in the Middle East is already affecting agriculture through fertilizer, fuel, and freight. For potato farmers, a crop that depends on careful nutrition, careful handling, and often careful storage, those pressures are especially relevant – and could become more severe if the conflict and shipping disruption continue.
Author: Lukie Pieterse, editor/publisher Potato News Today
Cover image: Credit Potato News Today
Discover more from Potato News Today
Subscribe to get the latest posts sent to your email.
