Field, Lab, Earth

ASA, CSSA, SSSA

Past and present advances in the fields of agronomic, crop, soil, and environmental sciences. Enjoy interviews with researchers published in journals, books, and magazines from the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. Opinions and conclusions expressed by authors are their own and are not considered as those of the American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, its staff, its members, or its advertisers.

  1. May 22

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

    "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 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 Marshall, you can find him here: marsh@iastate.edu If you would like to reach out to Hillary, you can find her here: hillary.olson@usda.gov 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/ 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.

    1h 2m
  2. Apr 17

    Wild Bee Sunflower Nectar Preferences with Dr. Jarrad Prasifka

    "Wild bee visitation unaffected by disparate nectar phenotypes in a sunflower inbred line population" with Dr. Jarrad Prasifka. Bees are important pollinators for sunflowers. But, just like humans, they also have preferences, which means it's important for sunflower breeders to breed the kinds of sunflowers that bees like best. In this episode, Dr. Jarrad Prasifka joins me to discuss sunflower nectar and how much it affects wild bee preferences for sunflower lines. Tune in to learn: ·         How sunflower lines are bred ·         How researchers check for bee preferences ·         How nectar phenotypes affect wild bee preferences in sunflower ·         Which other factors affect wild bee preferences in sunflower If you would like more information about this topic, this episode's paper is available here: https://doi.org/10.1002/csc2.70093 This paper is always freely available. 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 Jarrad, you can find him here: Jarrad.Prasifka@ars.usda.gov Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b303FF088-DA39-F111-88B5-00224808D3E1%7d  Transcripts: https://www.rev.com/app/transcript/NjllMTRjNWM3NzQ2MzEwZDYwZDAxZjUzQ19FcFQxLVFkX2RC/o/VEMwOTU2NjY4ODM4  Xerces Society Wild Bees page: https://www.xerces.org/endangered-species/wild-bees Rachel Mallinger's Website: http://www.rachelmallinger.com/research.html Rachel Mallinger's Field, Lab, Earth podcast: https://fieldlabearth.libsyn.com/insect-pollinators-and-confection-sunflowers-with-dr-rachel-mallinger Review Article from Frontiers in Plant Science: https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2018.00812/full Entomological Society of America Instagram: https://www.instagram.com/entsocamerica/ Entomological Society of America Facebook: https://www.facebook.com/entsoc Entomological Society of America X: https://twitter.com/EntsocAmerica Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

    40 min
  3. Mar 20

    Living Mulches in Organic Corn with Ben Brockmueller

    "Mechanical management strategies improve corn production in organically managed living mulch systems" with Ben Brockmueller. Organic farming is a rich and rewarding challenge for farmers, but without the use of herbicides and other conventional methods, weed suppression can be a problem. Cover crops functioning as living mulches can be one way to overcome this challenge, but what works in one crop may not necessarily work in another. In this episode, Ben joins me to discuss cover crop management in corn as a means of weed suppression. Tune in to learn: ·         What a living mulch is ·         What challenges farmers face moving organic practices between soybean and corn ·         Which methods most effectively suppress cover crops without killing them ·         What can help close the yield gap between living mulch and conventional systems If you would like more information about this topic, this episode's paper is available here: https://doi.org/10.1002/agj2.70100 This paper is always freely available. 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 Ben, you can find him here: brockmueller@wisc.edu Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b30B00AB1-5E24-F111-8341-00224808D88D%7d  Transcripts: https://www.rev.com/app/transcript/NjliYWVlZDc0ODM3N2UwN2RjZGNkYzY0WmYzWkNjeHRBTUxx/o/VEMwNzk4NjQ3MDgx  Organic Grain Resources and Information Network (OGRAIN): https://ograin.cals.wisc.edu/ OGRAIN YouTube: https://www.youtube.com/@ograin-organicgrainresourc9263 Sustainable Cropping systems Lab at Cornell University: https://blogs.cornell.edu/scslab/   Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

    39 min
  4. Feb 20

    Sorgoleone with Drs. Sakiko Okumoto, Bill Rooney, and Guntur Subbarao

    "Synthesis, function, and genetic variation of sorgoleone, the major biological nitrification inhibitor in sorghum" with Drs. Sakiko Okumoto, Bill Rooney, and Guntur Subbarao When we fertilize our crops, some of the nitrogen from that fertilizer gets converted into different forms through processes called nitrification and denitrification. When non-plant available forms of nitrogen exit the soil through water or as gas, it's a serious environmental problem. Thankfully, plants have some pretty nifty ways to prevent nitrification, such as biological nitrification inhibition or BNI, a process that manages the bacteria that cause nitrification. In this episode, Sakiko, Bill, and Guntur join me to discuss sorgoleone, a product of sorghum roots that plays a key role in the BNI process. Tune in to learn: ·         What sorgoleone is ·         How it helps ·         What challenges breeders face in increasing it ·         What challenges researchers face in moving this research out into farms If you would like more information about this topic, this episode's paper is available here: https://doi.org/10.1002/csc2.70066 This paper is always freely available. 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 Sakiko, you can find her here: sakiko.okumoto@agnet.tamu.edu If you would like to reach out to Bill, you can find him here: william.rooney@ag.tamu.edu If you would like to reach out to Guntur, you can find him here: gunturs0148@jircas.go.jp   If you would like to reach out to Megan Baker from our Student Spotlight, you can find her here: megbaker1100@gmail.com Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7bAB41759C-0E0D-F111-8406-0022480A5E44%7d  Transcripts: https://www.rev.com/app/transcript/Njk5NDlkNTQ3MGMxYTkxMWE5MmU5ODhhc2RIRkw0Vm9MSkJ5/o/VEMwMjQ2NTEyODQ4 AgriLife Today Article: https://agrilifetoday.tamu.edu/2024/09/12/texas-am-agrilife-researchers-identify-novel-approach-to-minimize-nitrogen-loss-in-crops/  BNI consortium conference: JIRCAS organizes International BNI-consortium meetings in Tsukuba, Japan, every two years. The next BNI-consortium meeting will be in the first week of December 2026. Most BNI-researchers working with JIRCAS BNI-team are invited for this meeting along with researchers who wish to enter into this research and establish collaborative linkages with other members of this group. Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

    51 min
  5. Jan 30

    Connections, January 2026 with Drs. Wade Thomason, Felix Fritschi, and Aaron Daigh

    We're trying something a little bit different. In addition to our regular episodes with Abby, we'll be adding a monthly bonus episode with Jim Cudahy, the CEO of the Societies. In this first episode, Jim has a chat with the three Society presidents, discussing current challenges and opportunities for the Societies, including ways that members can get the most out of our programs, but guests will vary a lot from there! Please give a listen and let us know what you think. If there are specific guests or topics you want us to cover, let us know! 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 Jim, you can find him here: https://tinyurl.com/yeysfjw4 If you would like to reach out to Wade, you can find him here: https://tinyurl.com/864khur7 If you would like to reach out to Felix, you can find him here: https://tinyurl.com/39h2zy3a If you would like to reach out to Aaron, you can find him here: https://tinyurl.com/4yanbf7y   Resources Transcripts: https://www.rev.com/app/transcript/Njk3MjVkNWMzZWJkMTZmYTQzZTc5YTZmaXN3TVBMLWdkZlgz/o/VEMwOTU5NjUyMjUz Societies homepage: https://www.sciencesocieties.org/ American Society of Agronomy: https://www.agronomy.org/ Crop Science Society of America: https://www.crops.org/ Soil Science Society of America: https://www.soils.org/ Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

    26 min
  6. Jan 16

    Rescuing Potato from Buckwheat Volunteers with Dr. Andrew McKenzie-Gopsill

    "The critical period of cover crop management: A framework for maximizing biomass potential and minimizing volunteers with buckwheat" with Dr. Andrew McKenzie-Gopsill Buckwheat can be a powerful driver of ecosystem services in potato rotations grown in Canada, but with its long-lived seeds and ability to make a whole lot of them in a short time, it can also pose a serious volunteer problem. In this episode, Andrew joins me to discuss how creating a framework to reduce volunteers can help keep this helpful plant from turning into a fearsome weed. Tune in to learn: ·         How potato farming is done in Canada ·         What ecosystem services buckwheat provides ·         What qualities can turn buckwheat from a helpful crop to a difficult to control weed ·         How combining tools from weed management can help keep buckwheat under control If you would like more information about this topic, this episode's paper is available here: https://doi.org/10.1002/agj2.70097 This paper is always freely available. 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 Andrew, you can find him here: andrew.mckenzie-gopsill@agr.gc.ca Resources CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7bAEC405A7-85F1-F011-8407-6045BD006BB3%7d  Transcripts: https://www.rev.com/app/captions/Njk2OTMwMDM0NzRlNjAzMGE4ZTBiM2JlUGhMWW10UnF3c0h2/o/Q1AwODE3NDYyMDk1  Atlantic Grains Council: https://atlanticgrainscouncil.ca/ PEI Potato Board: https://peipotatoagronomy.com/ Canadian Weed Science Society, of which Andrew will be president as of Nov 6th 2025. https://weedscience.ca/ Agri-Food and Agriculture Canada: https://agriculture.canada.ca/en New Brunswick Potato Board: https://www.potatoesnb.com/ Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

    43 min
4.4
out of 5
27 Ratings

About

Past and present advances in the fields of agronomic, crop, soil, and environmental sciences. Enjoy interviews with researchers published in journals, books, and magazines from the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. Opinions and conclusions expressed by authors are their own and are not considered as those of the American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, its staff, its members, or its advertisers.

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