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Cover crops control nitrogen and phosphorus transport from two agricultural watersheds at multiple measurement scales

Environmental impacts on freshwater ecosystems persist due to inputs of excess fertilizer to agricultural landscapes. Conservation efforts, such as cover crops, are being encouraged to reduce nitrogen (N) and phosphorus (P) runoff from fields, but their effects on working lands are rarely documented. We quantified reductions of nitrate-N and soluble reactive phosphorus (SRP) losses from cropland in response to widespread planting of cover crops in two agricultural watersheds (Indiana, USA) over four water years (2016–2019). We collected water samples bimonthly from tile drains and stream sites to measure nitrate-N and SRP losses across scales.

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Will you be attending Commodity Classic?

GO Seed will once again be attending Commodity Classic! If you’re interested in joining us for farmer led discussions on cover crops with GO Seed Director of Research and soil scientist, Dr. Shannon Cappellazzi, please email us by clicking the button below!
We hope you’ll come by our exhibit space and chat with the team, at space 2803!