Fertilizer costs and proposed tariffs spotlighted as immediate threat to farm margins

Members of the House Agriculture Committee and producers told the panel that elevated fertilizer prices and possible tariffs on energy and fertilizer imports are immediate drivers of declining farm margins.

Rodney Weinzierl, an Illinois corn and soybean grower and executive director of the Illinois Corn Growers, told the committee that ‘‘we import about 90% of our potassium fertilizer, which is one of the three macronutrients that row crops need,” and that uncertainty around tariffs is already prompting suppliers to limit future deliveries and raise prices. Several members used examples and committee testimony to calculate the potential per‑acre impact of a tariff on potash.

Why it matters: fertilizer (nitrogen, phosphorus, potassium) is a large share of per‑acre input costs for many row crops. Witnesses said fertilizer and nitrogen costs remain ‘‘sticky’’ after inflation‑era increases, and even modest percentage hikes are material to farms operating on tight margins.

Testimony highlights: Newton and other witnesses cited 2022 as an income peak followed by falling commodity prices; the panel noted that fertilizer input is a major fraction of variable costs — examples given included roughly $300 per acre on corn for fertilizer on some Midwestern farms — and that a 10–25% tariff or a supply disruption would increase costs substantially. Lawmakers pressed witnesses about who could absorb higher input prices, and witnesses warned that landlords and renters might not reduce cash rent accordingly, meaning farmers would carry added expense.

Ending: Committee members called for both short‑term monitoring of supply and price signals and farm bill tools to address structural input cost risk; some members also asked for trade exclusions and targeted policy responses rather than blanket tariffs.