info:oai:orgprints.org:7487info:ofi/fmt:xml:xsd:bookHauggaard-NielsenHenrikHauggaard-Nielsen, HenrikAmbusPerAmbus, PerBrissonNadineBrisson, NadineCrozatYvesCrozat, YvesDahlmannChristophDahlmann, ChristophDibetAudreyDibet, Audreyvon Fragstein und NiemsdorffPetervon Fragstein und Niemsdorff, PeterGoodingMikeGooding, MikeKasyanovaElenaKasyanova, ElenaLaunayMarieLaunay, MarieMontiMicheleMonti, MichelePristeriAurelioPristeri, AurelioSteen JensenErikSteen Jensen, Erik2006Pea-barley intercrops use nitrogen sources 20-30% more efficiently than the sole cropsproceeding