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Field Notes: Midsummer crop fertility update: tissue testing and nitrogen needs

tissue sampling corn minnesota nitrogen

An all-new weekly crops program from the University of Minnesota Extension Crops Team

Listen to a recording of our July 14, 2021 Field Notes webinar featuring Dr. Dan Kaiser, University of Minnesota Extension soil fertility specialist and Brad Carlson, University of Minnesota Extension educator - water resources, for a midsummer crop fertility checkup: tissue testing and nitrogen needs. 

This summer, many growers have experienced weather challenges due to below normal precipitation and warmer than average air temperatures. Our University of Minnesota Extension staff discuss the proper use of diagnostic tools such as crop tissue testing and nitrogen models to provide a checkup to crop growth and nutrient needs in Minnesota given the variable weather and soil moisture conditions.

What is Field Notes?

The Field Notes program is designed for farmers and agricultural professionals as a weekly webinar program addressing all your crop-related questions in real-time in an interactive, discussion-based format.

The Field Notes program will run Wednesday mornings from 7:30-8am throughout the growing season. It features a live webinar with interactive discussions that address in-season cropping issues as they arise. Topics may include nutrient management, agronomics, pest management, equipment, and more.

Do you have questions or topics you would like addressed during Field Notes? Submit them in advance of the program through the Google Form or send to In addition you will have the opportunity to ask questions during the webinar program.

Learn more and register

Can’t make the live session? No problem. The discussion-based series will be posted immediately following the webinar to your favorite podcast-streaming service to listen at your convenience ( Subscribe now on your favorite streaming service to get new episodes pushed to your device. Find us on SpotifyiTunesStitcherGoogle podcasts, and more!


For the latest nutrient management information, subscribe to Minnesota Crop News email alerts, like UMN Extension Nutrient Management on Facebook, follow us on Twitter, and visit our website.

Support for Minnesota Crop News nutrient management blog posts is provided in part by the Agricultural Fertilizer Research & Education Council (AFREC).
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