#43: The Potassium Paradox with Dr. S.A. Khan at Universi...

What this episode covers

If you’ve ever questioned whether your K applications are delivering ROI, this episode is a must-listen. Join Sean Nettleton and Dr. S.A. Khan from the University of Illinois to discuss the eye-opening research behind the Potassium Paradox. Dr. Kahn unpacks decades of soil science and long-term field data, challenging the conventional wisdom around potassium (K) fertilization. Dr. Khan explains why most Midwestern soils already contain more than enough potassium to support crop production and why typical soil tests often fail to accurately represent the true soil availability. For full context and to follow Dr. Khan’s slides, we highly recommend watching the episode on our YouTube channel.Topics Covered:The science behind exchangeable vs. non-exchangeable potassiumHow soil moisture and weather cycles impact soil test valuesWhy overapplying K can hurt calcium, magnesium, and even your soil’s structureResults from over 2,000 response trials across North AmericaPractical, cost-saving fertility recommendations Don’t miss this deep dive into one of the most misunderstood nutrients in agronomy.

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Frequently Asked Questions

How long is this episode of Crop Cast by BW Fusion?

This episode is 1 hour and 17 minutes long.

When was this Crop Cast by BW Fusion episode published?

This episode was published on July 25, 2025.

What is this episode about?

If you’ve ever questioned whether your K applications are delivering ROI, this episode is a must-listen. Join Sean Nettleton and Dr. S.A. Khan from the University of Illinois to discuss the eye-opening research behind the Potassium Paradox. Dr. Kahn...

Can I download this Crop Cast by BW Fusion episode?

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