Field, Lab, Earth

• Halloween Special: Spring Dead Spot with Dr. Wendell Hutchens

  "Fifteen years of findings: Advancements in spring dead spot research from 2009 to 2024" with Dr. Wendell Hutchens Spring dead spot is a disease that lies in wait before going after your turfgrasses, transforming your favorite golf course into the set of your favorite PG-13 slasher. This episode, Wendell joins me to discuss the mega gains made in the last 15 years of spring dead spot research, in hopes that someday we can turn this slow-moving monster into just the stuff of legend. Tune in to learn: ·        What symptoms point to spring dead spot ·        What methods are best to combat spring dead spot ·        How spring dead spot spreads ·        Where the future of spring dead spot research is moving If you would like more information about this topic, this episode's paper is available here: https://doi.org/10.1002/csc2.21367 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 Wendell, you can find him here: [email protected] https://www.x.com/HutchensWendell Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b8E8886F1-08B4-F011-BBD3-0022480989AC%7d  Transcripts: https://www.rev.com/app/transcript/NjhmYTU3NzFiNTllYWMyNmM4YjM4NzA5Ry0zb3pZSElDQS1a/o/VEMwNzU3NDY4Njgz  University of Arkansas Division of Agriculture Spring Dead Spot fact sheet:  https://www.uaex.uada.edu/publications/pdf/fsa-7551.pdf Trade magazine articles: https://gcmonline.com/course/environment/news/what-weve-learned-about-spring-dead-spot NCSU TurfFiles: https://www.turffiles.ncsu.edu/diseases-in-turf/spring-dead-spot-in-turf/ A Practical Guide to Turfgrass Fungicides: https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46734 The Compendium of Turfgrass Diseases, Fourth Edition: https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46871 Dr. Nathan Walker at Oklahoma State University: https://experts.okstate.edu/nathan.walker Dr. Lee Miller at Purdue: https://turf.purdue.edu/author/mill3054/ Dr. Jim Kerns at North Carolina State University: https://cals.ncsu.edu/entomology-and-plant-pathology/people/jpkerns/ Lee Butler at North Carolina State University: https://cals.ncsu.edu/entomology-and-plant-pathology/people/elbutler/ Dr. David McCall at Virginia Tech: https://spes.vt.edu/faculty-staff/faculty/mccall-david.html 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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• Genomic Selection with Dr. Jianming Yu

  "Genomic Selection: Essence, Applications, and Prospects" with Dr. Jianming Yu Genomic Selection is a plant breeding innovation that aims to speed plant breeding by using predictions from a training model enabled by genomics and statistics to guide the breeding decisions. With around thirty years of history around this innovation, it was about time to develop a review on it. Enter Dr. Jianming Yu and his team of coauthors. This episode, we skate the surface of a topic that could go down for miles, covering key areas of genomic selection, what it is, how to use it, and where we can aim to go in the future. Tune in to learn: ·         How genomic selection was developed ·         Why genomic selection should be seen as an innovation in rather than alternative to plant breeding ·         Why growing out crosses still matters ·         How AI could be integrated to further genomic selection If you would like more information about this topic, this episode's paper is available here: https://doi.org/10.1002/tpg2.70053 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 Jianming, you can find him here: [email protected] https://www.agron.iastate.edu/people/yu-jianming/ https://www.linkedin.com/in/jianming-yu-92b6617b/ https://www.linkedin.com/company/iowa-state-university-raymond-f-baker-center-for-plant-breeding/ Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b001D06ED-D9AA-F011-BBD3-000D3A599510%7d  Transcripts: https://www.rev.com/app/captions/NjhlZmI3ODYwMWFmOTFkYzdlYWRiMjhhM29MVTM2MVduOEFD/o/Q1AwNDYyNDc5Mzkz  CSA News article: https://www.sciencesocieties.org/publications/csa-news/2025/november/essence-of-genomic-selection  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 Nitrogen Value of Cover Crops with Dr. Guillermo Marcillo

  "The Nitrogen Value of Cover Crops" with Dr. Guillermo Marcillo. Cover crops are known for their ability to provide economic and ecosystem services to farmers, including, for example, impacting soil nitrogen. But how much nitrogen, exactly, can cover crops add or remove and how do we find out? In this episode, Guillermo joins me to discuss his work collating research data to get to the bottom of cover crop nitrogen replacement values. Tune in to learn: ·         What a nitrogen replacement value is ·         Why negative nitrogen replacement values are sometimes a positive ·         Which cover crops have, generally, which nitrogen replacement values ·         How nitrogen replacement values can be reverse engineered from existing data If you would like more information about this topic, this episode's paper is available here: https://doi.org/10.1002/ael2.70006 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 Guillermo, you can find him here: [email protected] Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b9A6669B5-C497-F011-B4CC-000D3A599510%7d  Transcripts: https://www.rev.com/app/transcript/NjhjYWFkNTBhZDQ3ZGFjZGUyZjMxYmQ4ajBOeXVVX3ZKb2t5/o/VEMxMDIwODkyMDA5 Water working group at West Texas A&M University: https://www.wtamu.edu/academics/college-engineering/water-working-group/people.html Practical Farmers of Iowa: https://practicalfarmers.org/ Precision Sustainable Agriculture: https://www.precisionsustainableag.org/ 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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• 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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