Effects of repeated clover undersowing, green manure ley and weed harrowing on weeds and yields in organic cereals

Helge Sjursen, Lars Olav Brandsæter, Jan Netland
  • Acta Agriculturae Scandinavica Section B - Soil & Plant Science, March 2012, Taylor & Francis
  • DOI: 10.1080/09064710.2011.584550

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