Global fertilizer prices have pulled back from the peaks reached during the Iran conflict, but North American growers have not yet seen meaningful relief in their input bills, Rabobank's Farm Inputs team reported. The Dutch agribusiness bank's analysts cautioned that even with wholesale values easing, farm margins remain stretched heading into the next production cycle.

Country Guide, a Canadian agriculture publication, ran the headline "Fertilizer prices ease from Iran war peaks but farmers remain stretched" in its summary of the Rabobank research. The full Rabobank document sits behind Country Guide's subscription wall.

What did the Rabobank note cover?

Rabobank's Farm Inputs team tracks pricing for the major nitrogen, phosphate and potash products that drive fertilizer budgets across North America. The team's notes, distributed to bank clients and select media, typically benchmark Gulf urea, New Orleans barge values, Tampa ammonia, NOLA DAP and the Western Canada potash corridor.

This particular note focused on the post-conflict window, mapping how benchmarks responded once shipping through the Persian Gulf resumed and Iranian tonnage returned to export channels.

Why did the Iran war spike prices?

Iran ranks among the world's largest urea and ammonia exporters. The brief conflict, and the shipping disruption it triggered, pushed spot benchmarks sharply higher within days.

Phosphate benchmarks reacted less sharply, given that phosphate flows depend on Chinese export quotas and Moroccan OCP output rather than Gulf shipping lanes. Potash, sourced overwhelmingly from Saskatchewan and from Russia and Belarus, saw only indirect effects.

Why are farmers still stretched?

Most North American growers and retailers locked in fall application purchases before the conflict peak. Those inventory positions are still being drawn down, which means the lower wholesale prices Rabobank now reports will not flow through to retail bills until the spring top-dress and sidedress buying window.

Even with wholesale easing, the working-capital position on grain farms has eroded over consecutive years of negative margins. The Rabobank team framed this as a cushion problem: lower wholesale values do not immediately translate into cash-flow relief when the underlying inventory was acquired at peak levels.

What's the forward view?

The Rabobank note pointed clients toward three signals in the global fertilizer complex. Chinese export quotas for the second half will set the floor under nitrogen pricing. North American natural gas pricing will determine whether domestic producers can undercut imports. And potash producer discipline at Nutrien and Mosaic will shape whether potash holds its current range or pushes higher.

The bank advised booking a portion of fall 2026 needs before the midsummer demand window, arguing that geopolitical risk remains elevated and that spot purchasing exposes growers to renewed spikes if shipping lanes tighten again.

What it means for the 2026 crop

Fertilizer typically represents 15-20% of variable input costs on a corn or wheat rotation. Even a moderate decline from the conflict peak still leaves 2026 cost structures well above the pre-2022 baseline, and growers running tighter rotations will see nitrogen lines eat a larger share of the budget.

The Rabobank note's bottom line, as reflected in Country Guide's headline: the price war has cooled, but the margin war on the farm continues. Growers enter 2026 with wholesale relief on the board but working-capital relief still to come.