Dr. John Jones: P and K Insights | Ep. 125
From The Crop Science Podcast Show by Wisenetix
May 5, 2026 · 29 min · Season 2 · Episode 125
About this episode
Dr. John Jones discusses phosphorus and potassium recommendations, nutrient behavior in soils, and data-driven fertilizer decisions.
In this special re-run episode of The Crop Science Podcast Show, we bring back our conversation with Dr. John Jones from the University of Illinois Urbana-Champaign, who explains how phosphorus and potassium recommendations are developed and why nutrient test methods vary by region. He explores nutrient behavior in soils, calibration approaches, and how agronomists can make better data-driven fertilizer decisions. Learn how to fine-tune your nutrient management strategies and why accurate soil testing matters. Listen now on all major platforms! "We treat phosphorus and potassium as more immobile nutrients that remain in the soil for years or even decades, which makes soil testing a reliable tool for guiding fertilization decisions." Meet the guest: Dr. John Jones https://www.linkedin.com/in/john-jones-7951b72b/ is an Assistant Professor of Agronomy and Soil Fertility Extension Specialist at the University of Illinois Urbana Champaign. His work focuses on soil fertility, nutrient management, and water quality, with experience across major cropping systems. His research connects soil testing, nutrient cycling, and practical agronomic decisions to improve crop production. Liked this…
People in this episode
Guest: Dr. John Jones
Topics covered
- phosphorus
- potassium
- nutrient management
- soil testing
- agronomy
- data-driven decisions
Keywords
- phosphorus
- potassium
- soil testing
- nutrient management
- agronomy
- fertilizer decisions
- calibration
Mentioned in this episode
Organizations: University of Illinois Urbana-Champaign
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