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• Organization: Department of the Interior
• Updated: 20230515 | Harvested: July 16, 2025 at 09:07 AM

This data release contains input and output data tables from a SPAtially Referenced Regression On Watershed attributes (SPARROW) model, which estimated total nitrogen loads in streams of the...

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• Organization: Department of the Interior
• Updated: 20220519 | Harvested: July 16, 2025 at 10:40 AM

This data release contains in situ biomass samples collected from cereal grain winter cover crop fields at the USDA-ARS Beltsville Agricultural Research Center, Beltsville, MD, in the winters of...

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• Organization: Department of the Interior
• Updated: 20250519 | Harvested: August 25, 2025 at 08:13 PM

This data release contains in situ winter cover crop biomass sampling data collected from fields located on the Delmarva Peninsula (Talbot, Queen Anne’s and Caroline County, Maryland, USA) and at...

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• Organization: Department of the Interior
• Updated: 20240812 | Harvested: July 16, 2025 at 01:35 AM

This data release includes winter cover crop field sampling data (2006-2021) collected from Maryland farms, along with two seasons of Maryland cost-share program field enrollment data (2019-20 and...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2023-03-24 | Harvested: June 27, 2025 at 10:33 PM

The spatial data and metadata are in a Geopackage geodatabase accessible through the open-source geographic information system QGIS, and through R, the open-source statistical computing and...

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