U.S. farmers are confronting another surge in fertilizer costs just as planting season approaches, adding fresh uncertainty to crop planning across the country. The pressure comes as global energy tensions disrupt supply chains for key agricultural inputs, particularly urea, one of the most widely used nitrogen fertilizers in crop production.

Growers have been scrambling to secure supplies ahead of the spring planting window. South Dakota farmer Chet Edinger said he recently purchased urea at a price roughly 22% higher than late 2025, describing it as "the highest price I ever had to pay."

Urea production relies heavily on natural gas, and disruptions in global energy flows can quickly ripple through fertilizer markets. Recent tensions in the Middle East, including attacks linked to the conflict involving Iran and the temporary halt of liquefied natural gas production in parts of the region, have tightened global supplies. The situation has also raised concerns about shipping through the Strait of Hormuz, a critical energy corridor that handles a significant share of global LNG exports.

The fertilizer shock is unfolding at the same time that grain markets are navigating sharp swings tied to energy prices and geopolitical developments. Corn futures slipped in overnight trading after crude oil prices retreated from recent highs, easing some of the war-driven premium that had entered commodity markets earlier in the week.

May corn futures fell to around $4.51 per bushel, extending a pullback from recent highs as investors reacted to falling oil prices and heavy selling by speculative funds. Analysts estimate that investment funds sold approximately 43,000 corn futures contracts at the start of the week, contributing to the downward pressure on prices.

Oil markets have been particularly volatile. Crude oil surged above $119 per barrel earlier in the week amid fears that the Middle East conflict could disrupt energy supplies, before falling sharply to around $89 per barrel after comments from U.S. officials suggested the conflict might de-escalate.

Energy markets play an important role in shaping grain demand. Corn, for example, is closely tied to the ethanol sector, where it is used to produce biofuel blended into gasoline. Rising fuel prices often strengthen ethanol demand and support corn markets, while falling oil prices can have the opposite effect.

Even as corn prices have pulled back slightly, export demand for U.S. corn remains strong. Government estimates indicate that corn exports for the 2025-26 marketing year could reach a record 3.3 billion bushels, a level that has been revised upward several times due to robust international demand.

At the same time, analysts expect the U.S. Department of Agriculture's latest supply-and-demand update to show a modest increase in corn ending stocks, potentially adding around 28 million bushels to current estimates.

Soybean markets are also experiencing heightened volatility. Prices initially fell overnight but recovered part of the losses after finding technical support near key moving averages. May soybean futures were trading close to $12 per bushel, following a sharp reversal from recent highs above $12.30.

Traders are closely monitoring global production, particularly in Brazil, where the soybean harvest is progressing toward what could be another record crop. Brazilian production is projected at 180 million metric tons, reinforcing the country's position as the world's largest soybean exporter.

Meanwhile, wheat futures have also retreated after an earlier rally tied to geopolitical concerns. Chicago wheat futures slipped toward $6 per bushel, easing from recent highs as fears of a prolonged Middle East conflict began to fade.

Despite the pullback in grain prices, the underlying supply picture remains complex. U.S. wheat exports have strengthened recently, and shipments during the first part of March more than doubled compared with the same period last year.

Weather forecasts are also influencing market sentiment. Parts of the eastern Corn Belt are expected to receive moderate rainfall this week, while colder-than-normal temperatures could spread across the Midwest in the coming days. In contrast, drier conditions may persist across the Plains and western Corn Belt later in March.

For farmers, the combination of rising input costs, volatile grain prices and geopolitical uncertainty is making planting decisions particularly challenging this season. Fertilizer prices remain one of the most critical variables, as nitrogen inputs represent a significant share of production costs for crops such as corn and wheat.

With global energy markets continuing to influence fertilizer supply and commodity prices, many growers are entering the season facing one of the most unpredictable market environments in recent years.