Prolonged Iran War Could Impact Farm Decisions, Corn Acres

Farm Equipment
Farm EquipmentMar 27, 2026

Why It Matters

Disruptions to Persian Gulf fertilizer supplies could erode farm profitability and shift U.S. crop patterns, affecting commodity markets worldwide.

Key Takeaways

  • Iran war threatens natural‑gas‑based fertilizer supply chains globally
  • Fertilizer and fuel costs surge, pressuring planting budgets
  • Timing limits farmers’ ability to adjust input purchases
  • Some growers may shift corn acres to soybeans
  • Persistent Gulf closures could push nitrogen prices higher

Summary

Spring planting in the United States and Canada is now being shadowed by the escalating conflict in Iran, which threatens the flow of natural‑gas‑derived ammonia used in nitrogen fertilizers.

Natural gas underpins the production of urea, the world’s most common solid nitrogen fertilizer, containing about 46 % nitrogen. With the Persian Gulf at risk of closure, analysts warn that fertilizer and fuel prices could jump sharply just as farmers are finalizing seed purchases and field preparations, leaving little room to react.

American Farm Bureau Federation economist Faith Pum noted that the timing is critical because early‑season fertilizer applications are already underway. Some growers, she said, are already weighing a reduction in corn acreage in favor of soybeans, which are less fertilizer‑intensive.

If Gulf shipments remain disrupted, higher nitrogen costs could compress farm margins, reshape crop rotations, and ripple through commodity markets, underscoring the broader economic stakes of the geopolitical tension.

Original Description

As spring planting season approaches, farmers across the U.S. and Canada are facing soaring fertilizer and fuel prices as the war in Iran escalates.
According to Faith Parum, Ph.D, an economist with the American Farm Bureau Federation, Iran holds some of the world’s largest natural gas reserves, and natural gas is the key feedstock used to produce ammonia, the foundational input for most nitrogen fertilizers. Urea, which contains about 46% nitrogen, is the most widely used solid nitrogen fertilizer globally and plays a central role in crop production systems.
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