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Field, Lab, Earth

Field, Lab, Earth

By: ASA CSSA SSSA
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 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.Copyright ASA, CSSA, SSSA Biological Sciences Natural History Nature & Ecology Science
Episodes
  • Soybean Seed Protein Decline with Dr. Anuj Chiluwal

    Soybean Seed Protein Decline with Dr. Anuj Chiluwal
    Jun 20 2025
    “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 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 Anuj, you can find him here: anuj.chiluwal@kysu.edu 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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    37 mins
  • Precision Turfgrass Management with Dr. Briana Wyatt and Dallas Williams

    Precision Turfgrass Management with Dr. Briana Wyatt and Dallas Williams
    May 16 2025

    “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 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 Briana, you can find her here:
    briana.wyatt@tamu.edu

    If you would like to reach out to Dallas, you can find her here:
    dmwilliams22@tamu.edu

    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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    34 mins
  • The Soil Health Cycle with Dr. Bijesh Maharjan

    The Soil Health Cycle with Dr. Bijesh Maharjan
    Apr 18 2025

    “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 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 Bijesh, you can find him here:
    maharjan@unl.edu
    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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    39 mins
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