Aaron Nygren - Extension Educator

Aaron Nygren

faculty
Work
PO Box 389 466 Rd 10 Schuyler NE 68661-0389
US

Faculty Bio

Nygren provides Extension agronomic support for Colfax, Cuming, and Stanton counties.
Twitter: @ColfaxCountyExt

Farmer on machinery

Farmer Focus: Nebraska Producers Evaluate Practices to Increase Soybean Yield, Profit Through On-Farm Research

April 21, 2022
Nebraska farmers highlight their results from a three-year on-farm research study that evaluated a suite of management practices to increase soybean yield and profitability.

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Kudera in field
Photo courtesy Kevin Kudera

Farmer Focus: Nebraska Growers Put Pivot Bio to the Test Via On-Farm Research Studies

April 7, 2022
This first installment of Nebraska On-Farm Research's new series highlights research done by two Nebraska farm families and a crop consultant on Pivot Bio products.

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Program flier

Confronting Cropping Challenges Program to be Offered in December 2021

November 17, 2021
The fifth annual Confronting Cropping Challenges program will highlight cropping issues for northeast Nebraska producers throughout 2021, such as fall armyworms and tar spot.

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Tractor in field
By incorporating residual nitrate-nitrogen into the nitrogen fertilizer prescription, there is potential to substantially reduce fertilizer cost per acre.

Now is the Time to Use the Nutrients You are Banking in Your Soils

October 20, 2021
With the recent increase in fertilizer prices, it is more important than ever to use the right amount of fertilizer to maximize the economic returns. Applying too little or too much fertilizer can result in substantial economic loss.

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Soybean pods
Figure 1. Soybean pods collected from stage R7 plants (one mature pod per plant) that were opened to determine if the pod wall interior membrane was still clinging tightly to the seeds (leftmost pod), or if it was beginning to detach from the seeds (second pod), or if the membrane was now permanently attached to the pod wall (third pod). After attaining physiological maturity, seeds undergo a dry-down period from about 60% moisture to about 13% moisture. Note that the Rx.x numbers used here are pod-based stages, not plant-based stages.

Understanding Ending Reproductive Stages in Soybean

August 27, 2021
The timing of the ending R stages in soybean is governed by planting date (PD) and varietal maturity group (MG), though the date of R7 can be hastened if water stress and high temperatures prevail in August — something we are seeing in portions of Nebraska this year.

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Pivot irrigation

Scheduling the Last Few Irrigations of the Season Deserves More of Your Management Time Than Earlier Irrigations

August 19, 2021
University of Nebraska irrigation scheduling recommendations encourage irrigators to allow crops to continue using more of the stored soil water starting in August and continuing into September when the crop matures.

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ET gage
ETgage installed near soybean field.

ET Resources

June 24, 2021
Online resources for viewing evapotranspiration (ET) information and changes, which can be used alongside your crop's stage of growth to estimate crop water use.

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Nebraska sample field map

What Have We Learned about Soybean Seed Constituents in Irrigated and Dryland Producer Fields in Nebraska?

June 14, 2021
With a continuous decline in seed protein concentration in U.S. soybeans, UNL researchers examined how irrigation practices in Nebraska may contribute to this issue for soybean growers.

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