U.S. farmers are entering the 2026 growing season under significant financial strain. Fertilizer costs remain historically high, while commodity prices have softened, tightening already slim profit margins. In many operations, fertilizer now represents up to 40% of corn production costs-a figure that demands close scrutiny.

Experts agree: cutting fertilizer inputs without reducing yields is possible-but it requires strategic planning, solid data, and localized decisions. Agronomists from Farm Journal, land-grant universities, and independent crop services have outlined key actions that farmers can take now to prepare for a more cost-effective fertility program next year.

Optimize What You Apply

Precision is power. Farmers are urged to use soil test data to adjust application rates field-by-field. "Pull back on high-testing zones and hold or increase in low-testing areas," says Ken Ferrie, Farm Journal Field Agronomist.

Highlighted Insight: Applying below nutrient removal rates may save money short-term, but risks soil depletion long-term. Strategic reduction, not elimination, is key.

Additionally, starter fertilizers, banding, and site-specific applications can improve nutrient efficiency without increasing total volume.

Budget Smarter, Spend Wisely

According to industry benchmarks, 16% to 20% of expected crop revenue is typically reinvested into fertility. For example, a 200 bu./acre corn crop at $5/bu. suggests a $200/acre fertility budget. Use this as a starting point-not a fixed rule.

Rather than making uniform cuts across all acres, target cuts to specific fields where fertility is adequate. Prioritize fields with high yield response probability and protect your investment there.

Highlighted Insight: "This is the year to trim anything that doesn't clearly pay its way," advises agronomist Kyle Stull. That includes add-on products, unnecessary tillage, or overly expensive seed.

Know What Really Limits Your Yield

Don't fall for blanket solutions. If potassium is your main limitation, micronutrient treatments won't solve the problem. Invest in diagnostics and address your No. 1 constraint first.

Highlighted Insight: "If corn runs out of nitrogen, it's game over-no matter how much phosphorus or potassium is present," says Ferrie.

Soil pH levels should also be corrected. A pH of 5.8 to 6.2 supports nutrient availability, herbicide activity, and stronger ROI. Lime remains a low-cost way to improve multiple crop responses.

Plan for 2026-But Think Beyond

Many farms trimmed fertilizer expenses sharply in 2025. Can they cut deeper in 2026? Possibly-but with caution. "If you rent land and funds are tight, still apply full rates in fields testing ‘Very Low,'" recommends Iowa State's Virgil Schmitt. These fields offer the best ROI on applied nutrients.

Highlighted Insight: Don't rely on luck. Have a Plan B-and C. If prices spike, you need contingencies. If prices drop, be ready to lock in deals. Flexibility can protect margins.

Above all, own your fertility plan. While collaboration is important, each farm must tailor its strategy based on local conditions, available resources, and long-term goals.

Highlighted Insight: "We're focused on 2026, but don't forget about your soil's long-term health," Ferrie says. "The decisions you make this season will affect yields for years to come."