In this episode of The Crop Science Podcast Show, Dr. Christopher Graham from South Dakota State University shares how soil health influences nitrogen management in crop systems. The conversation explores soil health definitions, practical indicators, and how biological processes affect fertilizer responsiveness. Dr. Graham explains why some soils respond differently to nitrogen and how producers can use soil data to guide decisions. Listen now on all major platforms.

"Soil health is the ability to maintain long term productivity, but also to reduce external inputs, especially nitrogen fertilizer."

Meet the guest: Dr. Christopher Graham is a Professor and Extension Specialist Agronomist at South Dakota State University and Manager of the SDSU West River Research Farm. His work focuses on soil health, nitrogen cycling, and the role of soil biological processes in crop production systems. Dr. Graham’s research emphasizes practical tools for improving nitrogen efficiency in semi arid environments. 

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What you will learn:

• (00:00) Highlight
• (00:56) Introduction
• (03:41) Projects in soil health
• (07:26) Soil indicators
• (12:00) Nitrogen rates
• (16:26) Nutrients insights
• (23:46) Microorganism response
• (34:25) Final three questions

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- KWS

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