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Welcome to the web home for Field, Lab, Earth, the podcast from the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. The podcast all about past and present advances in agronomic, crop, soil, and environmental sciences, our show features timely interviews with our authors about research in these fields.

Field, Lab, Earth releases on the third Friday of each month in addition to the occasional bonus episode. If you enjoy our show, please be sure to tell your friends and rate and review. If you have a topic, author, or paper you would like featured or have other feedback, please contact us on Twitter @fieldlabearth or use the email icon below. You can join our newsletter to receive notifications about new episodes and related resources here.

Field, Lab, Earth features graduate and undergraduate students at the end of each episode. If you would like to be featured, please let us know by filling out this brief application form. Please note you must be a student member with ASA, CSSA, or SSSA to apply.

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  2. Compost Organic Matter in a Snap with Dr. David C. Weindorf

Compost Organic Matter in a Snap with Dr. David C. Weindorf

Aug 15, 2025

“Toward sustainable compost use: Prediction of organic matter via smartphone image analysis” with Dr. David C. Weindorf

Compost needs to be regularly tested to ensure labels regarding organic matter, nutrients, and more remain accurate. However, getting compost tested is time- and cost-intensive. This episode, Dr. Weindorf joins me to discuss how developing a model to predict organic matter from cell phone pictures might make this process a whole lot easier.

Tune in to learn:

·         Which factors best correlated with organic matter

·         How the team collected 157 different compost samples

·         How application can affect the acceptable window for success on accuracy

·         What camera-related factors affected the methods and results

If you would like more information about this topic, this episode’s paper is available here: https://doi.org/10.1002/agj2.70121

It will be freely available from August 15-August 31, 2025.

Contact us at podcast@sciencesocieties.org 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 David, you can find him here:
dweindorf@georgiasouthern.edu
https://www.linkedin.com/in/david-c-weindorf-43875b110/

Resources

CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b91295D26-E579-F011-B4CC-000D3A599510%7d

Transcripts: https://www.rev.com/app/transcript/Njg5ZTBjNDZjMjFjM2ZlZThkNTdhYmJiWEhIRXQ0eUl3WlRi/o/VEMwMzgxNjg4NTA4

Compost Research and Education Foundation: https://www.compostfoundation.org/

Agronomy Journal: https://acsess.onlinelibrary.wiley.com/journal/14350645

Compost Science and Utilization: https://www.tandfonline.com/journals/ucsu20

Waste Management: https://www.sciencedirect.com/journal/waste-management

Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.