info:oai:orgprints.org:10357info:ofi/fmt:xml:xsd:bookCooperJ. M.Cooper, J. M.SchmidtC. S.Schmidt, C. S.LueckL.Lueck, L.ShottonP. N.Shotton, P. N.TurnbullC.Turnbull, C.LeifertC.Leifert, C.2007Effect of organic, low-input and conventional production systems on yield and diseases in winter barleyproceeding