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FIRST soybean tests show strong yields

Yield reports are in from fields across the Midwest and impacts of the ongoing drought are proving to be less than expected.

This year’s Farmers’ Independent Research of Seed Technologies (FIRST) soybean yield results showed strong production overall despite some tough conditions.

Iowa saw wide variability in soybean yields across the state. In the northernmost sites, yields ranged from 37.6 bushels per acre in Iowa Falls to 67.7 in Hull. The 37.6 bu./acre figure was an outlier, with only one of the other six sites, Osage, posting a sub-50 average yield.

The variability is illustrated comparing Iowa Falls’ low yield to nearby Ventura, which averaged 63.4 bushels per acre. Both those sites are in the north central region, roughly 56 miles from each other.

In the southern portion of Iowa, yields were exceptional. In the FIRST sites managed by Randy Meinsma, yields ranged from 60.7 in Central City to 80.3 in Washington. Cambria, in south central Iowa, posted an average 72.3 bu./acre, while the westernmost site in Oakland reached an average of 70.1.

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Trending Video

Supplemental Nitrogen on Soybeans: Can Early Nitrogen Increase Yield?

Video: Supplemental Nitrogen on Soybeans: Can Early Nitrogen Increase Yield?

Can supplemental nitrogen help soybeans reach higher yield potential? Technical Agronomist Tim Sickman walks through an ongoing trial at the Nutrien Innovation Farm in Owensboro, Kentucky, exploring whether a modest amount of nitrogen applied at planting can support higher-yielding soybean environments.

The trial compares 30 pounds of supplemental nitrogen across both 15- and 30-inch rows, along with treatments that include sulfur and micronutrients. Similar trials conducted in 2024 and 2025 delivered a six- to seven-bushel yield response, prompting the team to expand the research this season.

Early observations show that treated soybeans are slightly taller and averaging about two additional nodes on the main stem. These added nodes could create more opportunities for blooms and pods, but the true results will come at harvest when the team evaluates pod development, seed fill and final yield.

In This Video:

Why high-yield soybeans may need supplemental nitrogen

Results from the 2024 and 2025 trials

Nitrogen treatments in 15- and 30-inch rows

Fertilizer placement and application methods

Differences in plant height and node counts

Potential effects on pod development and yield