{
  "eprintid": "7223",
  "rev_number": "2",
  "eprint_status": "archive",
  "userid": "649",
  "dir": "disk0/00/00/72/23",
  "datestamp": "2006-05-10",
  "lastmod": "2009-09-09 13:39:33",
  "status_changed": "2009-08-20 14:30:18",
  "type": "conference_item",
  "metadata_visibility": "show",
  "item_issues_count": "0",
  "doclang": "en",
  "projects": [
    "int_conf_joint2006_4"
  ],
  "confdates": "May 30-31, 2006",
  "conference": "Joint Organic Congress",
  "confloc": "Odense, Denmark",
  "refereed": "never",
  "budget": "0",
  "publicfulltext": "TRUE",
  "presentationtype": "paper",
  "creators": [
    {
      "name": {
        "family": "Möller",
        "given": "Kurt"
      },
      "id": ""
    },
    {
      "name": {
        "family": "Stinner",
        "given": "Walter"
      },
      "id": ""
    },
    {
      "name": {
        "family": "Leithold",
        "given": "Günter"
      },
      "id": ""
    }
  ],
  "title": "Biogas in organic agriculture: Effects on yields, nutrient uptake and environmental parameters of the cropping system",
  "ispublished": "pub",
  "subjects": [
    "5emissions",
    "3compost"
  ],
  "abstract": "System effects of biogas fermentation in organic cropping systems with and without livestock (dairy farming) were investigated from 2002-2005. In both systems no differences in yields and nutrient uptake were detected in the legume crops. In the livestock-system non legume crops of the slurry system had no higher yields but a higher nitrogen uptake (6 %) than the stable manure system. Slurry-fermentation had no effect on yields and nitrogen uptake. The inclusion of crop residues in the fermentation system increased the nitrogen uptake about by 10 % and reduced the nitrate leaching potential by ca. 10 %. The inclusion of external substrates lead to a further increase in nitrogen yield of 10 %, but to no significant increase in dry matter yields. Fermentation had no effects on P-availability of manures. In the stockless system fermentation of clover grass, straw and catch crops increased yields and nitrogen content of winter wheat by ca. 10 %, combined with a significant decrease in nitrate leaching potential (10 %) and in emissions of nitrous oxide (ca. 40 %).",
  "date": "2006",
  "date_type": "published",
  "full_text_status": "public",
  "documents": [
    {
      "docid": "5532",
      "rev_number": "1",
      "eprintid": "7223",
      "pos": "1",
      "format": "source",
      "language": "de",
      "security": "public",
      "main": "kurt_moeller_biogas.doc",
      "files": [
        {
          "filename": "kurt_moeller_biogas.doc",
          "filesize": "72704",
          "url": "http://orgprints.org/7223/1/kurt_moeller_biogas.doc"
        }
      ]
    }
  ]
}