U.S. corn planting 2026 is shaping up as a harder sell for many farmers this spring. Ahead of the USDA acreage report due on March 31, analysts told Reuters they expect corn acres to fall while soybean acres rise as fertilizer and diesel costs climb during the planting season.
That shift matters because corn is usually one of the most expensive row crops to plant. Soybeans typically need less nitrogen fertilizer, so when input prices jump, they can start to look like the safer choice. Sometimes the decision really does come down to what works on paper before the planter rolls.
Why corn is losing some ground
Reuters reported that analysts on average expected corn plantings at 94.371 million acres, down from 98.788 million in 2025. They also expected soybean seedings to rise to 85.549 million acres from 81.215 million a year earlier.
The basic math is easy to follow. Corn needs more fertilizer, especially nitrogen, and that input has become much more expensive since the war with Iran disrupted energy and fertilizer markets. In practical terms, that means some growers may decide soybeans carry less risk this season.
What USDA had already been signaling
The USDA already pointed in a similar direction in its February 19 Grains and Oilseeds Outlook. That outlook projected 94.0 million corn acres and 85.0 million soybean acres for 2026, showing that even before the latest spring cost shock, the balance between the two crops was starting to tilt.
That does not mean every farmer will make the same move. Crop rotation, local basis, soil needs, and weather still matter a lot. But when fuel and fertilizer bills rise fast, even a well-planned rotation can suddenly look different.
Why farmers and markets may stay cautious
There is another wrinkle here. Reuters noted that the USDA farmer survey was conducted in the first half of March, which may not fully capture how quickly costs changed after the February 28 start of the war. That is why some traders may treat the first acreage figures with caution.
For readers tracking the same trend, Agroinformacion recently covered how fewer corn acres and more soybeans are becoming a bigger part of the 2026 outlook. The main report has been published by Reuters.