In-season nitrogen: Tools for deciding on source, timing, placement, and inhibitors

In this episode of the Nutrient Management Podcast, we’re discussing nitrogen decision tools. How much are we actually at risk of losing fall or spring applied nitrogen because soils are saturated in May? What options do we have to assess nitrogen loss following heavy rain? If a grower is planning on applying nitrogen in season, what suggestions would you have for sources, timing, placement, and inhibitors? How late in the growing season can you apply nitrogen and what should you consider?

Transcript

Guests:

• Fabian Fernandez, Extension nutrient management specialist (St. Paul)
• Jeff Vetch, U of M researcher (Waseca)
• Daniel Kaiser, Extension nutrient management specialist (St. Paul)

Additional resources:

• Video: 6 takeaways on the pre-sidedress nitrate test
• PSNT as a way to manage nitrogen, Emerson Souza, University of Minnesota
• Late-season nitrogen application: Is it worth it?
• Corn fertilizer guidelines
• Nitrogen Smart

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Support for the Nutrient Management Podcast is provided by Minnesota's fertilizer tonnage fee through the Agricultural Fertilizer Research & Education Council (AFREC). Learn more at MNsoilfertility.com