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Welcome to the web home for Field, Lab, Earth, the podcast from the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. The podcast all about past and present advances in agronomic, crop, soil, and environmental sciences, our show features timely interviews with our authors about research in these fields.

Field, Lab, Earth releases on the third Friday of each month in addition to the occasional bonus episode. If you enjoy our show, please be sure to tell your friends and rate and review. If you have a topic, author, or paper you would like featured or have other feedback, please contact us on Twitter @fieldlabearth or use the email icon below. You can join our newsletter to receive notifications about new episodes and related resources here.

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Mar 15, 2024

“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:

This paper is always freely available.

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