Field, Lab, Earth

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

  “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 [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 David, you can find him here: [email protected] 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.

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• Cover Crops and the Transition to Organic with Nick Boogades

  “Early impacts of cover crop selection on soil biological parameters during a transition to organic agriculture” with Nick Boodages. Incorporating cover crops is an important step in the transition from conventional to organic growing practices, but in Texas, limited resources can bring complications. In this episode, Nick joins me to discuss his work researching how to help farmers make the leap. Tune in to learn: ·        What challenges Texan farmers face when hoping to transition to organic agriculture ·        Which cover crops perform best in the Texas high plains ·        Which challenges Texan farmers face when growing cover crops ·        How cover crops impact crop yields during the transition to organic If you would like more information about this topic, this episode’s paper is available here: https://doi.org/10.1002/agg2.20532 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 Nick, you can find him here: [email protected] Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b16FD85DA-8B61-F011-BEC3-6045BD0A85F5%7d  Transcripts: https://www.rev.com/app/transcript/Njg2ZTdhM2M3MTljMjMzZjYxOWE2ODlidXpYcmF2ZDF0Z04x/o/VEMwNzYxNzAyNjY3  Texas A&M AgriLife extension: https://agrilifeextension.tamu.edu/ Lewis and Burke Labs: www.txsoillab.com Organic Transition-Cotton Peanut Rotation extension paper: https://agriliferollingplainsagronomy.org/2022/11/22/organic-transition-cotton-peanut-rotation/ Alternative Certifications for Organic Transition: Quality Assurance Initiative (QAI)-Certified Organic Transition: https://www.qai-inc.com/certification-services/transitional.php/ Non GMO project: https://www.nongmoproject.org/ Certified naturally grown: https://www.naturallygrown.org/ Grazing Cover Crops in the Great Plains with Drs. John Holman and Augustine Obour: https://fieldlabearth.libsyn.com/grazing-cover-crops-in-the-great-plains-with-drs-john-holman-and-augustine-obour Thank you to our volunteer Om Prakash Ghimire for help with the shownotes and other assets. Thank you to Cole Shalk from 12twelve Media for the Audio Processing on today's episode. 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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• Soybean Seed Protein Decline with Dr. Anuj Chiluwal

  “United States soybean seed protein concentrations – current status, challenges and some potential crop management solutions” with Dr. Anuj Chiluwal. Soybeans are a crucial crop in the United States for a variety of uses, including for its use as a protein source in animal feed. However, in recent years, high yield varieties have seen a steady decline in seed protein concentration. In this episode, Anuj joins me to discuss the sources of this decline and some potential strategies to combat it. Tune in to learn: ·         Why soybean seed protein is declining in US soybean ·         How the US may be a template for other countries with similar problems ·         What temporary solutions may be available for this problem ·         Which future research paths may bring about more sustainable solutions If you would like more information about this topic, this episode’s paper is available here: https://doi.org/10.1002/agj2.21731 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 Anuj, you can find him here: [email protected] https://www.kysu.edu/directory/faculty-staff/anuj-chiluwal.php https://www.linkedin.com/in/anuj-chiluwal/ Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7bAC0EA3C0-3F50-F011-877A-00224808D254%7d  Transcripts: https://www.rev.com/app/captions/Njg1MWI0MjE2MDAzODViYzNhZjVkNjYzWE4wOEZYc1pLNHNQ/o/Q1AwMTA4NTk3MzE4 “Soybean management for seed composition: The perspective of U.S. farmers” paper: https://doi.org/10.1002/agj2.21082 “Exploring Nitrogen Limitation for Historical and Modern Soybean Genotypes” paper: https://doi.org/10.2134/agronj2018.04.0271 “Quantification of Soybean Leaf Senescence and Maturation as Impacted by Soil- and Foliar-Applied Nitrogen” paper: https://doi.org/10.2134/cftm2018.07.0051 “Probability of Yield Response to Inoculants in Fields with a History of Soybean” paper: https://doi.org/10.2135/cropsci2009.04.0185 “Late-Season Nitrogen Applications Increase Soybean Yield and Seed Protein Concentration” paper: https://doi.org/10.3389/fpls.2021.715940 “Is soybean yield limited by nitrogen supply?” paper: https://doi.org/10.1016/j.fcr.2017.08.009 “Assessing Variation in US Soybean Seed Composition (Protein and Oil)” paper: https://doi.org/10.3389/fpls.2019.00298 “Regional analysis of planting date and cultivar maturity recommendations that improve soybean oil yield and meal protein concentration” paper: https://doi.org/10.3389/fpls.2022.954111 Extension fact sheet: https://www.kysu.edu/documents/college-of-agriculture-communities-the-sciences/2025-Fact%20Sheet%20Soybean%20Seed%20Quality.pdf University of Minnesota annual soybean quality reports: https://extension.umn.edu/soybean/soybean-seed-quality Thank you to our volunteer Om Prakash Ghimire for help with the shownotes and other assets. Thank you to Cole Shalk from 12twelve Media for the Audio Processing on today's episode. 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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• Precision Turfgrass Management with Dr. Briana Wyatt and Dallas Williams

  “Using electromagnetic induction to inform precision turfgrass management strategies in sand-capped golf course fairways” with Dr. Briana Wyatt and Dallas Williams Golf courses are well known for their beautiful greens, but overusing fertilizer and water to keep them looking pristine can lead to inefficient, expensive, and environmentally damaging waste. Precision turfgrass management can help, but only if we can find the right methods to put it into use. In this episode, Briana and Dallas join me to discuss their research on how electrical conductivity can be used to help determine golf course needs. Tune in to learn: ·         How many management zones might be in a fairway ·         How turfgrass type can effect electromagnetic induction correlations ·         Which properties are most correlated with electromagnetic induction readings ·         How researchers can get readings on large areas of a golf course fairway If you would like more information about this topic, this episode’s paper is available here: https://doi.org/10.1002/agg2.70020 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 Briana, you can find her here: [email protected] If you would like to reach out to Dallas, you can find her here: [email protected] Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7bD35BC10D-F821-F011-9989-000D3A32C099%7d Transcripts: https://www.rev.com/app/transcript/NjgyNGU4NmRkZjIzY2FlOWRmYTQ4ZmEwV2Y5WFhuVTFpTnR3/o/VEMwODY4NTQyOTM4 TAMU turfgrass website: https://soilcrop.tamu.edu/research/turfgrass/ TAMU Department of Soil and Crop Sciences Facebook: https://www.facebook.com/tamusoilcrop TAMU Department of Soil and Crop Sciences Twitter: https://x.com/tamusoilcrop Thank you to our volunteer Om Prakash Ghimire for help with the shownotes and other assets. Thank you to Cole Shalk from 12twelve Media for the Audio Processing on today's episode. 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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• The Soil Health Cycle with Dr. Bijesh Maharjan

  “Soil Health Cycle” with Dr. Bijesh Maharjan Researchers, advisers, and farmers alike know that soil health is important, but taking steps forward in the knowledge of which practices to use and their impacts can be difficult. Enter the soil health cycle, an iterative approach to help track how practices and their implementation take soil health forward. In this episode, Bijesh joins me to discuss his work on the soil health cycle. Tune in to learn: ·         How the soil health cycle is similar to human health care cycles ·         What the four steps of the soil health cycle are ·         Why it’s important to have a soil health cycle ·         What the literature says about the current state of the soil health cycle If you would like more information about this topic, this episode’s paper is available here: https://doi.org/10.1002/agg2.20504 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 Bijesh, you can find him here: [email protected] https://x.com/Nebraska_soils Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b3687C77E-BE1E-F011-998A-0022480989AC%7d  Transcripts: https://www.rev.com/app/transcript/NjgwMDExNTJlZGVmODgyNjliNWNhMmQzbEVZNXpiYV8xWGtU/o/VEMwOTY5NDE4NDEw Supracentennial special section call for papers for Soil Science Society of America Journal: https://acsess.onlinelibrary.wiley.com/journal/14350661/specialsectioncall#supracentennial-field-experiments Maharjan Lab: www.maharjanlab.com Thank you to our volunteer Om Prakash Ghimire for help with other assets. Thank you to Cole Shalk from 12twelve Media for the Audio Processing on today's episode. 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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