U.S. farm profitability in 2026 is being shaped less by any single input price than by the combined effects of fertilizer and fuel costs, weather conditions, and commodity prices. According to the USDA Economic Research Service, total U.S. farm production expenses are projected to rise by $21.2 billion, or 4.5%, from 2025 to $492.8 billion in 2026.
Fertilizer, lime, and soil-conditioner expenses are projected to increase by $5.3 billion, or 15.3%, while fuel and oil expenses are expected to rise by $4.8 billion, or 28.8%. For growers already facing tight crop margins, these increases make decisions about input purchasing, application rates, and production planning even more consequential.
Why margins are tightening
The core challenge is not simply that inputs cost more; it is that rising production costs can put pressure on profitability when commodity prices do not increase enough to offset them. According to the USDA’s September 2026 forecast, net farm income is projected at $158.4 billion, down 2.6% from 2025 in nominal terms and 5.5% after adjusting for inflation. Net cash farm income is also forecast to decline by 2.5% in inflation-adjusted terms.
Fertilizer is a particularly important cost for corn growers. McKinsey estimates that fertilizer accounts for approximately 20% of revenue for a U.S. corn grower. This makes volatility in nitrogen, phosphate, and potash markets more than a procurement concern; it can directly affect farm-level profitability.
Energy is embedded in every input
Energy affects U.S. agriculture through both direct operating expenses and indirect production costs.
Diesel and machinery fuel: Field operations, transportation, irrigation pumping, and harvest logistics are sensitive to diesel prices. Higher fuel costs can increase the expense of planting, crop maintenance, and moving produce to market.
Natural gas: Natural gas is a major feedstock and energy source for nitrogen fertilizer production. Changes in gas prices can therefore influence fertilizer manufacturing costs and, in turn, the prices farmers pay.
Electricity: Irrigation, grain drying, cold storage, livestock facilities, and controlled-environment agriculture all depend on reliable electricity. Higher power costs can add pressure to operating margins.
Biofuels and renewable energy: Demand for ethanol, renewable diesel, and sustainable aviation fuel can influence demand for agricultural feedstocks. Meanwhile, solar, wind, biogas, and battery storage can offer farms opportunities to diversify energy sources and manage exposure to conventional energy prices.
Grid reliability: Power interruptions during irrigation, harvest, or cold storage can disrupt operations, threaten product quality, and create additional financial risks.
Energy is therefore more than a fuel expense. It is a structural cost factor that influences fertilizer affordability, field operations, post-harvest handling, and the resilience of U.S. farms.
Weather is now a margin variable
Weather affects more than yield; it also influences the cost and effectiveness of farm inputs. Delayed planting or harvest, excessive rainfall, drought, and unexpected pest outbreaks can disrupt fertilizer timing, increase fuel consumption, require additional field operations, and affect crop-insurance claims and revenue. Delays in U.S. corn and soybean harvesting also highlight the importance of weather-resilient agricultural technology.
The practical question for growers is: How can weather intelligence improve input decisions rather than simply forecast conditions? The answer lies in combining field-level forecasts, soil moisture, crop growth stages, equipment data, and market prices to support timely, informed decisions.
Where technology can help
Technology cannot eliminate input-price volatility, but it can help farmers manage costs and respond more precisely to changing field conditions.
Variable-rate fertilization: Apply nutrients according to soil tests, management zones, and in-season crop requirements rather than relying on uniform application rates.
Fuel and machinery analytics: Monitor idle time, field efficiency, fuel consumption, and equipment utilization to identify opportunities to reduce avoidable diesel costs.
Weather-linked application planning: Schedule fertilizer, crop protection, irrigation, and harvest operations around rainfall forecasts, wind conditions, soil moisture, and field trafficability.
Scenario-based budgeting: Model how changes in fertilizer prices, diesel costs, yields, and commodity prices affect breakeven points before committing to a production plan.
Integrated agronomy and financial data: Combine agronomic recommendations, input purchases, field records, and margin projections to support more informed operational and financial decisions.
The goal is not more data—it is clearer decisions on what to apply, when to apply it, and whether the expected return justifies the cost.
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