{
  "@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 Source 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. The study objective was to compare N2O emissions resulting from application of commercially available enhanced-effi ciency N fertilizers with emissions from conventional dry granular urea in irrigated cropping systems. These emissions were monitored from several irrigated cropping systems receiving N fertilizer rates ranging from 0-246 kg/ha from years 2007-2008 with intermediate rates of 157 kg/ha applied to the barley crop in corn-barley rotation and 56 kg/ha applied to the dry bens in the corn-dry bean rotation. Cropping systems included conventional-till continuous corn (CT-CC), no-till continuous corn (NT-CC), no-till corn–dry bean (NT-CDb), and no-till corn–barley (NT-CB). Nitrous oxide fluxes were measured during ten growing seasons using static, vented chambers and a gas chromatograph analyzer.  This work shows that the use of no-till and enhanced-effi ciency N fertilizers can potentially reduce N2O emissions from irrigated systems.</p> <div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: GeoData catalog record.</p> <p>File Name: Web Page, url: <a href=\"https://geodata.nal.usda.gov/geonetwork/srv/eng/catalog.search;jsessionid=6BDC7D66926FA0429979C09A9A3B0601?node=srv#/metadata/11aec7d7-2a2a-4b52-ae96-990001c7d994\" target=\"_blank\">https://geodata.nal.usda.gov/geonetwork/srv/eng/catalog.search;jsessionid=6BDC7D66926FA0429979C09A9A3B0601?node=srv#/metadata/11aec7d7-2a2a-4b52-ae96-990001c7d994</a> </p></li></ul>",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://geodata.nal.usda.gov/geonetwork/srv/eng/catalog.search;jsessionid=6BDC7D66926FA0429979C09A9A3B0601?node=srv#/metadata/11aec7d7-2a2a-4b52-ae96-990001c7d994",
      "mediaType": "text/html",
      "title": "https://geodata.nal.usda.gov/geonetwork/srv/eng/catalog.search;jsessionid=6BDC7D66926FA0429979C09A9A3B0601?node=srv#/metadata/11aec7d7-2a2a-4b52-ae96-990001c7d994"
    }
  ],
  "identifier": "10113/AA24057",
  "keyword": [
    "ARS",
    "Cropping Systems",
    "Environment",
    "NP211",
    "NP212",
    "Soil",
    "Water",
    "barley",
    "carbon dioxide",
    "corn",
    "crops",
    "data.gov",
    "emissions",
    "farming",
    "fertilizer",
    "greenhouse gas emissions",
    "herbicides",
    "irrigation",
    "methane",
    "nitrous oxide",
    "tillage"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "modified": "2025-11-22",
  "programCode": [
    "005:040"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "Agricultural Research Service"
  },
  "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[-104.99998, 40.65193], [-104.998263, 40.65193], [-104.998263, 40.65069], [-104.99998, 40.65069], [-104.99998, 40.65193]]]}",
  "temporal": "2007-01-01/2008-12-31",
  "title": "Nitrogen Source Study for Greenhouse gas Reduction through Agricultural Carbon Enhancement network in Fort Collins, Colorado"
}