{
  "eprintid": "7251",
  "rev_number": "2",
  "eprint_status": "archive",
  "userid": "1042",
  "dir": "disk0/00/00/72/51",
  "datestamp": "2006-05-10",
  "lastmod": "2009-09-09 13:39:35",
  "status_changed": "2009-08-20 14:30:21",
  "type": "conference_item",
  "metadata_visibility": "show",
  "item_issues_count": "0",
  "doclang": "en",
  "projects": [
    "int_conf_joint2006_4",
    "de-uni-bonn-organischer-landbau"
  ],
  "confdates": "May 30-31, 2006",
  "conference": "Joint Organic Congress",
  "confloc": "Odense, Denmark",
  "refereed": "never",
  "budget": "0",
  "publicfulltext": "TRUE",
  "presentationtype": "paper",
  "creators": [
    {
      "name": {
        "family": "Lukashyk",
        "given": "P."
      },
      "id": ""
    },
    {
      "name": {
        "family": "Berg",
        "given": "M."
      },
      "id": ""
    },
    {
      "name": {
        "family": "Köpke",
        "given": "U."
      },
      "id": ""
    }
  ],
  "title": "Strategies for controlling Cirsium arvense in organic crop production",
  "ispublished": "pub",
  "subjects": [
    "9weed"
  ],
  "abstract": "Abstract - Three strategies for controlling Cirsium arvense including (1) repeated stubble tillage with subsequent forage crop cultivation, (2) repeated mowing of a grass-clover ley, and (3) forage crop cultivation following a grass-clover ley ploughed in May/June were investigated in field experiments over 3 years. The development of C. arvense shoot density was regularly assessed on subplots with defined thistle densities. In the medium-term (9 months), repeated stubble tillage (treatment 1) decreased shoot density of C. arvense more effectively than a once mowed grass-clover ley (2). However, after 22 months, treatments 1 and 2 resulted in a similar strong reduction of C. arvense shoot density of 95 % and 97 %, respectively. At this time, the efficacy of treatment 3 was lower (89 %), however, not signifi-cantly different to that of treatments 1 and 2. After 26 months, the effect of all treatments was still appar-ent; however, the efficacy of treatment 3 was signifi-cantly lower than that of treatment 2. Generally, the different strategies showed only minor differences, thus delivering options for optimal strategies of this-tle control under given specific conditions of site and cropping systems.",
  "date": "2006",
  "date_type": "published",
  "full_text_status": "public",
  "documents": [
    {
      "docid": "5549",
      "rev_number": "1",
      "eprintid": "7251",
      "pos": "1",
      "format": "rtf",
      "language": "de",
      "security": "public",
      "main": "C.arvense_Daenemark.rtf",
      "files": [
        {
          "filename": "C.arvense_Daenemark.rtf",
          "filesize": "45485",
          "url": "http://orgprints.org/7251/1/C.arvense_Daenemark.rtf"
        }
      ]
    }
  ]
}