{
  "@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"
}