{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["005:18"], "contactPoint": {"fn": "Del Grosso, Steve", "hasEmail": "mailto:steve.delgrosso@ars.usda.gov"}, "description": "<p>Nitrogen Rate Study for Greenhouse gas Reduction through Agricultural Carbon Enhancement network in Fort Collins, Colorado\nNitrogen fertilization is essential for optimizing crop yields; however, it increases N2O emissions. These emissions were monitored from several irrigated cropping systems receiving N fertilizer rates ranging from 0-246 kg/ha from years 2002-2006. Cropping systems included conventional-till continuous corn and no-till continuous corn at varying N rates. Nitrous oxide fluxes were measured during four growing seasons using static, vented chambers and a gas chromatograph analyzer.  This work shows that the use of no-till can potentially reduce N2O emissions from irrigated systems and increase soil carbon storage.</p> <div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Fort Collins, CO Nitrogen Rate Study (COFOARD1) CSV data.</p> <p>File Name: COFOARD1_csv_data.zip</p><p>Resource Description: CSV format data on Experimental Units, Field Sites, Greenhouse Gas Flux, Soil Chemistry, Soil Physics, Yield Nutrient Uptake, Amendments, Planting, Tillage, Persons, Treatments, Weather Daily, Weather Station. </p></li></ul>", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43367586", "format": "zip", "mediaType": "application/zip", "title": "COFOARD1_csv_data.zip"}], "identifier": "10.15482/USDA.ADC/1503969", "keyword": ["ARS", "Cropping Systems", "Environment", "NP211", "NP212", "Soil", "corn", "data.gov", "emissions", "farming", "fertilizer", "greenhouse gas emissions", "herbicides", "methane", "nitrous oxide", "tillage"], "license": "https://www.usa.gov/publicdomain/label/1.0/", "modified": "2025-11-22", "programCode": ["005:040"], "publisher": {"@type": "org:Organization", "name": "Agricultural Research Service"}, "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[-104.999456, 40.651924], [-104.998269, 40.651924], [-104.998269, 40.650689], [-104.999456, 40.650689], [-104.999456, 40.651924]]]}", "temporal": "1999-04-01/2006-12-31", "title": "Nitrogen Rate Study for Greenhouse gas Reduction through Agricultural Carbon Enhancement network in Fort Collins, Colorado"}