2025 Corn, Soybean, Wheat Fungicide Efficacy Guides Now Available

By Kiersten Wise and Carl Bradley
Published on Mar. 30, 2025

The 2025 fungicide efficacy tables for foliar diseases of corn and soybean, and for soybean seedling diseases have been updated, and are now available through the Crop Protection Network website: https://cropprotectionnetwork.org/.

Grain Crop Phosphate and Potash Rate Recommendations: AGR-1 Updates

By John Grove and Edwin Ritchey
Published on Mar. 30, 2025

Grain crop fertilizer phosphate (P2O5) and potash (K2O) maintenance rate recommendations in AGR-1 (Ritchey and McGrath, 2020) have not been reexamined since their inception - 1992. Other UK extension faculty (G. Schwab, pers. comm.; B. Lee, pers.

Early Planted Soybean Does Benefit from Good Soil Fertility

By John Grove
Published on Mar. 30, 2025

I’ve been reading in both popular and scientific press that for soybean fields with low fertility, early planting substitutes for addition of needed soil-based nutrition (Allen, 2025, Loman et al., 2024).

Corn Nitrogen Rate Recommendations: AGR-1 Updates

By John Grove and Edwin Ritchey
Published on Mar. 30, 2025

Corn fertilizer nitrogen (N) rate recommendations had not been deeply reexamined in 20 years. Additionally, there have been no substantial change to AGR-1 (Ritchey and McGrath, 2020) corn N management recommendations since the 2004-2005 version of the document. Information on the use of urease inhibitors was added at that time.

Corn Yield Contest Analysis: What Has Driven Yield in Last 6 Years?

By Mohammad Shamim and Chad Lee
Published on Mar. 30, 2025

The Kentucky Corn Yield Contest is organized jointly by the University of Kentucky and the Kentucky Corn Growers Association. The yield contest can provide valuable insights into the highest-yielding corn fields across the state.

Set the Stage for a Successful Growing Season with a Strong Burndown

By Travis Legleiter
Published on Mar. 24, 2025

After a miserably wet February with several spells of unusually cold temps, March is finally bringing spring weather. Along with spring weather comes winter annual weed growth and burndown applications will begin in earnest in the very near future.

Biological N Fixation Products for Corn: An Update

By John Grove and Chad Lee
Published on Mar. 24, 2025

Replacing, economically, some or all of corn’s fertilizer nitrogen (N) need with biological N fixation (BNF) is becoming a major goal in commercial corn production. With BNF, microbes fix atmospheric N as ammoniacal N and provide additional N nutrition to the crop.

Historical Corn and Soybean Yield Improvement in Kentucky

By Dennis Egli
Published on Mar. 24, 2025

It won’t be long before Kentucky farmers start planting the 2025 corn and soybean crops. At this time of the year, farmers are always optimistic, expecting record yields if the weather cooperates. This expectation is a result of the yield trends over the last nearly 100 years.

Tariffs and Trade: The Cost of U.S. Agriculture

By Grant Gardner
Published on Mar. 24, 2025

Tariffs are a government tool used to raise the price of forei

Endangered Species Act – How Will it Affect You in the Near Future?

By Travis Legleiter
Published on Mar. 14, 2025

The Endangered Species Act (ESA) has existed since 1973 and was implemented to ensure that any actions taken by a government agency did not jeopardize any species that are federally listed as threatened or endangered. So, why are we now talking about this law in 2025, nearly fifty years after its original passing?