TY - CONF ID - orgprints7474 UR - http://orgprints.org/7474/ A1 - Hauggaard-Nielsen, Henrik A1 - Tranberg Nikolajsen, Jacob A1 - Steen Jensen, Erik TI - Competitive ability of grain legume-barley intercrops towards volunteer crops and weeds Y1 - 2006/// N2 - Field pea (Pisum sativum L.) and blue lupin (Lupinus angustifolius L.) were either sole cropped or inter-cropped with barley (Hordeum vulgare L.) at two levels of nitrogen application to determine the effects of interspecific interaction in an intercrop and nitro-gen fertility on competitive ability towards volunteer crops - exemplified by red clover (Trifolium pratense). The dynamically change of competitive ability by intercropped species over time was shown to be im-portant in order to reduce opportunities for growth of volunteer crops and weeds AV - public ER -