Field, Lab, Earth ASA, CSSA, SSSA

“Comparative productivity of six bioenergy cropping systems on marginal lands in the Great Lakes Region, USA” with Dileepa Jayawardena.
Bioenergy crops present a promising source for biofuel production, offering a potential solution to reduce reliance on fossil fuels. However, they face criticism for potentially encroaching on arable land essential for food production to sustain growing populations. To address this issue, there is a growing focus on utilizing marginal lands for growing bioenergy crops, which are less suitable for crop production. Marginal lands typically suffer from poor soil health and low nutrient and water availability. Therefore, it is crucial to identify and develop bioenergy crops that can thrive in such conditions and produce biomass for biofuel production while also confirming which marginal lands are best suited to these uses.  In this episode, Dileepa Jayawardena, a Research Associate at The Great Lakes Bioenergy Research Center, Michigan State University, sheds light on his research aimed at finding suitable bioenergy cropping systems for marginal lands in Michigan and Wisconsin for producing biomass for long-term bioenergy production while minimizing the competition of land for food crops. 
Tune in to learn more about
·         What are bioenergy crops?
·         What is the importance of bioenergy crops?
·         Why marginal lands can be suitable for bioenergy crops?
·         Which cropping system is better for marginal lands?
·         How to make sustainable biofuel production?
If you would like more information about this topic, this episode’s paper is available here: https://doi.org/10.1002/agj2.21416
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 Dileepa Jayawardena, you can find them here: jayawar7@msu.edu
https://www.canr.msu.edu/people/dileepa-jayawardena
If you would like to reach out to Anthony Mirabito, you can find him here:
Anthony.Mirabito@ucf.edu
Resources
CEU Quiz: Coming soon
Transcripts: https://www.rev.com/transcript-editor/shared/BF5AEqaoPuNl34XUrsRV6b0-ENkI6RnfdnwTpXSltqUHE4ziwT1MwFCYpCMwukPlq4w64fDdmnp5VdIPx3RepxMiNmY?loadFrom=SharedLink
Great Lakes Bioenergy Research Center: https://www.glbrc.org/
Special thanks to Om Prakash Ghimire for help on the shownotes and other assets.
Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

“Key soil properties and their relationships with crop yields as affected by soil-landscape rehabilitation” with Dr. Sharon Schneider.
Soil erosion is one of the major issues in agriculture that causes loss of the topsoil layer, reducing soil health and crop productivity. There are several ways to check soil erosion and its impacts on crop and soil health. One of the potential strategies to reduce the effect of past soil erosion is to reverse the soil erosion process by moving soil from where it was deposited by erosion to where soil was lost by erosion. In this episode, Dr. Sharon Schneider shares her research on replacing topsoil in eroded landscapes.
Tune in to learn more about
·         What are the impacts of soil erosion on crop productivity and soil properties?
·         What are strategies for reducing soil erosion?
·         What is the importance of soil organic carbon?
·         Soil and crop benefits of replacing topsoil in eroded landscapes
If you would like more information about this topic, this episode’s papers are available here:  
https://doi.org/10.1002/agj2.21428
https://doi.org/10.1002/agj2.20635
These papers are 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 Sharon Schneider, you can find her here:
sharon.schneider@usda.gov
https://www.ars.usda.gov/people-locations/person/?person-id=18554
Resources
CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7bEB81DC50-BBFD-EE11-A1FE-6045BD00B487%7d 
Transcripts: https://www.rev.com/transcript-editor/shared/WC-PeR5791dk2tkR2u75p-GOs1oUF7Gi_x80IfNi_8mCiCNvGQVi8yRoAhXnh0w-Fv0hIdbMAvqKTsriQFNgmEBE-pE?loadFrom=SharedLink 
“Soil properties and productivity as affected by topsoil movement within an eroded landform,” published in Soil and Tillage Research: https://doi.org/10.1016/j.still.2008.07.018
Integrated Cropping Systems Research Group: https://www.ars.usda.gov/plains-area/brookings-sd/ncarl/
Data from the study: Schneider, Sharon K.; Sutradhar, Apurba K.; Schumacher, Thomas E.; Lobb, David A. (2024). Soil, crop, and weed communities as affected by soil erosion and topsoil replacement in a Mollisol landform (a six-year soil-landscape rehabilitation study). Ag Data Commons. Dataset. https://doi.org/10.15482/USDA.ADC/25206968.v1
Recorded presentation by Sharon Schneider available at USDA: https://www.ars.usda.gov/ARSUserFiles/30800500/Schneider%202021%20virtual%20field%20day%20720p.mp4
Presentation to the Sustainability of Canadian Agriculture Conference, 2022 by David Lobb: https://umanitoba.ca/agricultural-food-sciences/sites/agricultural-food-sciences/files/2022-04/scac2022lobb.pdf
EA Consumables is the exclusive US distributor of organic elemental analysis products by UK laboratory supplies manufacturer, Elemental Microanalysis. Visit the EA Consumables website for high quality elemental analysis consumable supplies that offer performance you can trust. 
Special thank you to Om Prakash Ghimire for help with the creation of the shownotes and other assets.
Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

“Recalibrating the Pennsylvania pre-sidedress soil nitrate test recommendations for modern corn production” with Charles White.
Nitrogen management is one of the most important agronomic practices in modern crop production systems. The Pre-Sidedress Soil Nitrate Test, also known as the PSNT, gives farmers an estimation of plant available nitrogen in the soil, allowing them to calculate how much nitrogen the plants still need. The existing PSNT method was developed during the 1990’s. Now, farming practices are improved, altering the amount of nitrogen fertilizer plants need. Thus, it is important to re-calibrate the test so farmers can have a more accurate estimation of nitrogen requirements and reduce the cost of production.  In this episode, Dr. Charlie White shares his insights on re-calibrating the pre-side dress soil nitrate test for modern corn production systems.
Tune in to learn more about:
·        What the Pre-Sidedress Soil Nitrate Test does
·        The importance of Nitrogen mineralization
·        Which improved practices have impacted the test’s accuracy
·        Which factors most impact the test results now
If you would like more information about this topic, this episode’s paper is available here:
https://doi.org/10.1002/agj2.21426
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 Charlie, you can find him here:
cmw29@psu.edu
https://plantscience.psu.edu/directory/cmw29
Resources
CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b3A5B06DD-B9FD-EE11-A1FE-6045BD00B487%7d 
Transcripts: https://www.rev.com/transcript-editor/shared/jwOgsvZ0Ye6QLkhgHfzs6VMnOhv92tS5cwYKzr5JDZZlqorAGmEi0ay_XYUdTeGIx0_WFOs4wDJ9jp93XktnxPkcM1Y?loadFrom=SharedLink 
Extension article: https://extension.psu.edu/re-calibrating-the-pre-sidedress-soil-nitrate-test-for-modern-corn-production
Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

“Precision nitrogen management for improving yield and protein content in wheat” with Dr. Olga Walsh.
Nitrogen is one of the most important nutrients for crops, which is required in large amounts for crop production and demands precise nutrient management methods due to its highly mobile property in plants and soils and high chances of leaching. Precise nutrient management is also important for improving the yield and quality of grains, minimizing the input, and maximizing the efficiency. Assessing the real-time plant growth, biomass production, and nutrient depletion in the soil using different precision agriculture techniques like drones, remote sensing, unmanned aerial vehicles (UAVs), and other camera-based devices helps optimize nutrient management. In this episode, Dr. Olga Walsh shares her research on precision nitrogen management for yield and protein content estimation on spring wheat and sugar beet by using different hand-held sensors, drones, and remote sensing approaches.
Tune in to learn more about
·         What values are best to look for when doing remote sensing in wheat
·         How drones, remote sensing, and camera applications are helping predict biomass and nutrient requirements
·         What yield and protein content was estimated from the sensors tested
·         How hand-held and UAV sensors compare
If you would like more information about this topic, this episode’s paper is available here:  https://doi.org/10.1002/agg2.20309
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 Olga Walsh, you can find her here:
oswalsh@vt.edu
https://spes.vt.edu/faculty-staff/faculty/walsh_olga.html
If you would like to reach out to Ayush Kachrulal Sharma, you can find him here:
ayushsharma@ufl.edu
https://twitter.com/Ayushsharma9770 
Resources
CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b0C58D320-47CB-EE11-9079-000D3A355FD1%7d
Transcripts: https://www.rev.com/transcript-editor/shared/-6STl4uhGJ_6rdM6-VHBcgpSzZoxD_pvMZqu-k9mwXKl0cSZPvAyPvz5J4XcoYMjUF3NlRgTD1hYymCEdyPW0CwO2iM?loadFrom=SharedLink 
Extension outreach bulletins:
Estimation of Wheat Yield and Grain Protein with Handheld and UAV-Mounted Sensors. UI Extension Bulletin 1033: https://www.uidaho.edu/extension/publications/publication-detail?id=bul1033
Nitrogen Management in Field Crops with Reference Strips and Crop Sensors. UI Extension Bulletin 896: https://www.uidaho.edu/extension/publications/publication-detail?id=bul0896
Southern Idaho Soft White Spring Wheat Quick Facts. UI Extension Bulletin 979: https://www.uidaho.edu/extension/publications/publication-detail?id=bul0979
Southern Idaho Hard Spring Wheat Quick Facts. UI Extension Bulletin 986: https://www.uidaho.edu/-/media/UIdaho-Responsive/Files/Extension/topic/cereals/scse/publications/SI-Wheat-Quick-Facts-HSW.pdf
Optimum Nitrogen Rates for Wheat Depend on the Environment and Field-Specific Conditions. UI CIS 1028: https://www.uidaho.edu/extension/publications/publication-detail?id=bul1028
School of Plant and Environmental Sciences, Virginia Tech University, Blacksburg, Virginia: https://spes.vt.edu/
Thank you to Om Prakash Ghimire for help in assembling show notes and other assets.
Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

“Nitrogen mitigation scenarios to reduce coastal eutrophication” with Wafa and Patrick.
Eutrophication is a state of overgrowth of aquatic plants, such as algae and seaweeds, in water bodies due to the excessive pouring of nutrients from different sources like agriculture, industry, and human settlements, causing disturbances to the ecosystems. Coastal eutrophication is a major issue worldwide due to the increasing discharge of nutrient emissions from agricultural activities into coastal ecosystems. Several efforts have been made to reduce eutrophication, achieving up to 35–40% reduction, but these measures are not sufficient to eliminate the problem. For more sustainable and effective solutions, the root causes of the nutrient emissions, especially nitrogen, need to be addressed in current agricultural practices. In this episode, Drs. Wafa Malik and Patrick Durand share their research on the reduction of coastal eutrophication in Brittany, France, focusing on changing cropping systems and reducing the sources through modeling the effectiveness of different approaches and taking into consideration the interests of farmers and the local community.
Tune in to learn more about
·         How eutrophication happens
·         What are the causes and consequences of coastal eutrophication
·         What are the agricultural impacts of eutrophication
·         How we can change cropping systems to reduce eutrophication
·         What mitigation challenges exist in reducing coastal eutrophication
If you would like more information about this topic, this episode’s paper is available here:  
https://doi.org/10.1002/agg2.20319
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 Wafa Malik, you can find her here:
wafa.malik@inrae.fr
LinkedIn: https://www.linkedin.com/in/wafa-malik-research/
ResearchGate: https://www.researchgate.net/profile/Malik-Wafa
If you would like to reach out to Patrick, you can find him here:
patrick.durand@inrae.fr
https://eng-umrsas.rennes.hub.inrae.fr/directory/DURAND-Patrick
Resources
CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b1C0B77B1-B4B0-EE11-A569-6045BD08CB18%7d
Transcripts: https://www.rev.com/transcript-editor/shared/2QrnHUUs0fUBR99df6xrCcMwgGt406XWlBMVDo2AWNTtsMZD9JbluyEPgVYlPMYqN2PwkWJ_DwkxmN4HJ1kK_dNutuE?loadFrom=SharedLink 
National Research Institute for Agriculture, Food and the Environment (INRAE), France
https://eng-umrsas.rennes.hub.inrae.fr/
 
Thank you to our volunteer, Om Prakash Ghimire, for his assistance on show notes and other materials.
Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.

“Focusing the GWAS Lens on days to flower using latent variable phenotypes derived from global multienvironment trials” with Sandesh Neupane and Derek Wright.
Lentil, a pivotal pulse crop, is recognized as an important part of food and nutrition security in the world. It has rich sources of important nutrients, is easy to cook, and thrives well on the farm. Due to its rich dietary benefits, lentil has been introduced to North America, especially in Canada. Originating as a warmer climate crop, domesticated in the Middle East and North Africa, and widely adopted in Southeast Asia, lentil can face adaptation issues in the cooler Canadian climate. This struggle directly impacts flowering, pod-bearing, and overall yield. What precisely are the adaptation constraints hindering lentil introduction in North America? How do varying photoperiods and temperatures exert influence on lentil production? Delving deeper, what genes govern the crop's sensitivity to photoperiods and temperatures? In this episode, Sandesh Neupane and Derek Wright share insights into their research on lentil adaptation and how they dissect the genetic mechanisms orchestrating the photoperiod and temperature sensitivity in lentils with multi-location trials and advanced image-based phenotyping. This groundbreaking work promises to contribute significantly to the breeding of well-suited lentil varieties tailored to thrive in North American conditions.
Tune in to learn about:
·         Lentil and its nutritional value
·         Lentil’s history
·         The challenges of lentil adaptation in Canada
·         How the environment affects lentil growth
If you would like more information about this topic, this episode’s paper is available here:  https://doi.org/10.1002/tpg2.20269
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 Derek Wright, you can find him here:
derek.wright@usask.ca
If you would like to reach out to Sandesh Neupane, you can find him here:
sandesh.neupane@usask.ca
If you would like to reach out to Om Prakash Ghimire from our Student Spotlight, you can find him here:
oghimir@g.clemson.edu
Twitter: https://twitter.com/baizalla
 
Resources
CEU Quiz: https://web.sciencesocieties.org/Learning-Center/Courses/Course-Detail?productid=%7b66CDC952-F899-EE11-BE37-000D3A32379C%7d
Transcripts: https://www.rev.com/transcript-editor/shared/DTO7pupG1PWFmpaCbjNkVKnhQuE9eybRhp_s83uNy5AoLyIlNwjjoi5_3tjqm5lbMxn3ESqOuz1EuC4_GuWmV5Ri604?loadFrom=SharedLink
Plant Sciences, Crop Development Centre – University of Saskatchewan: https://agbio.usask.ca/faculty-and-staff/people-pages/kirstin-bett.php#top/
Know Pulse - https://knowpulse.usask.ca/
Thank you to Om Prakash Ghimire for help on the creation of show notes and other assets.
Field, Lab, Earth is Copyrighted by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.