The nitrogen value of cover crops

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October 15, 2025

The Nitrogen Value of Cover Crops with Dr. Guillermo Marcillo | Field, Lab, Earth Podcast #133

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 of the Field, Lab, Earth podcast, Dr. Guillermo Marcillo discusses his work collating research data to get to the bottom of cover crop nitrogen replacement values.

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This episode is based on the Agricultural & Environmental Letters article, “The Nitrogen Value of Cover Crops: How Much N Can Cover Crops Replace?”: https://doi.org/10.1002/ael2.70006 .
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