http://orgprints.org/7487/ Pea-barley intercrops use nitrogen sources 20-30% more efficiently than the sole crops Field pea (Pisum sativum L.) and spring barley (Hordeum vulgare L) were intercropped and sole cropped to compare the effects of crop diversity on the use of nitrogen sources in European organic crop-ping systems. Across a wide range of growing condi-tions pea-barley intercropping showed that nitrogen sources were used from 17 to 31% more efficiently by the intercrop than by the sole crops. Intercropping technologies offers the opportunity for organic cropping systems to utilize N complementarity between component crops, without compromising total crop N yield levels Hauggaard-Nielsen, Henrik Ambus, Per Brisson, Nadine Crozat, Yves Dahlmann, Christoph Dibet, Audrey von Fragstein und Niemsdorff, Peter Gooding, Mike Kasyanova, Elena Launay, Marie Monti, Michele Pristeri, Aurelio Steen Jensen, Erik 2cropcomb int_conf_joint2006_4 Pea-barley intercrops use nitrogen sources 20-30% more efficiently than the sole crops 2006-05-09 Hauggaard-Nielsen, Henrik; Ambus, Per; Brisson, Nadine; Crozat, Yves; Dahlmann, Christoph; Dibet, Audrey; von Fragstein und Niemsdorff, Peter; Gooding, Mike; Kasyanova, Elena; Launay, Marie; Monti, Michele; Pristeri, Aurelio and Steen Jensen, Erik (2006) Pea-barley intercrops use nitrogen sources 20-30% more efficiently than the sole crops. Joint Organic Congress, Odense, Denmark, May 30-31, 2006. application/pdf