Soil Health Principles in Iowa with Dr. Marshall McDaniel and Hillary Olson episode artwork

EPISODE · May 22, 2026 · 1H 1M

Soil Health Principles in Iowa with Dr. Marshall McDaniel and Hillary Olson

from Field, Lab, Earth

"Putting the Soil Health Principles to the Test in Iowa, USA" with Dr. Marshall McDaniel and Hillary Olson Soil health principles can help guide farmers in best practices for long term soil health and improvement. However, it's important to test these principles across locations and contexts to see how their implementation is actually shaping soil health. In this episode, Marshall and Hillary join me to discuss testing the soil health principles in Iowa and how this might be expanded into further regions. Tune in to learn: ·        What the soil health principles are ·        Which soil health indicators are fast or slow movers ·        Why it's difficult to weight soil health principles ·        What future research is yet to be done If you would like more information about this topic, this episode's paper is available here: https://doi.org/10.1002/saj2.20761 This paper is always freely available. Contact us at [email protected] or on Twitter @FieldLabEarth if you have comments, questions, or suggestions for show topics, and if you want more content like this don't forget to subscribe. If you'd like to see old episodes or sign up for our newsletter, you can do so here: https://fieldlabearth.libsyn.com/. If you would like to reach out to Marshall, you can find him here: [email protected] If you would like to reach out to Hillary, you can find her here: [email protected] Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid={599CC6CF-E055-F111-BEC7-0022480A5E44} Transcripts: https://www.rev.com/app/transcript/NmEwZWZmOWI2MGY5M2E0NzIxNzBhMzk0N3dEdVNTQTJSZlpW/o/VEMwNzE0NTg0MjI2  NRCS Soil Health website: https://www.nrcs.usda.gov/conservation-basics/natural-resource-concerns/soil/soil-health In field soil health assessment: https://www.nrcs.usda.gov/conservation-basics/soil/soil-health/soil-health-assessment McDaniel lab: https://www.soil-plant.com McDaniel lab X: https://x.com/Soil_Plant_IXNs McDaniel lab Blue Sky: https://bsky.app/profile/soil-plant.bsky.social McDaniel Lab LinkedIn: https://www.linkedin.com/in/soil-plant-ixns/ Soil Health Institute: https://soilhealthinstitute.org/ Soil Health Institute Slakes Test: https://soilhealthinstitute.org/our-work/initiatives/slakes/#overview Maximum water holding capacity with a DIY method: A simple, affordable, do-it-yourself method for measuring soil maximum water holding capacity. Communications in Soil Science and Plant Analysis, 55(8), 1190-1204. Permanganate oxidizable carbon (POXC) study: Permanganate oxidizable carbon reflects a processed soil fraction that is sensitive to management. https://doi.org/10.2136/sssaj2011.0286 A Soil Owner's Manual: How to Restore and Maintain Soil Health by John Stika: https://www.amazon.com/Soil-Owners-Manual-Restore-Maintain/dp/1530431263 Teaming with Microbes by Jeff Lowenfels and Wayne Lewis: https://www.amazon.com/Teaming-Microbes-Organic-Gardeners-Revised/dp/1604691131 Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

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Soil Health Principles in Iowa with Dr. Marshall McDaniel and Hillary Olson

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