Citation: W. Merbach et al., TEMPORARY BIOLOGICAL N CONSERVATION BY WINTER OILSEED TURNIP (BRASSICA-RAPA L.) AND ITS INFLUENCE ON FOLLOWING CROPS AND N-PERCOLATION, Isotopes in environmental and health studies, 33(1-2), 1997, pp. 39-43
Citation: W. Merbach et al., THE EFFECT OF CATCH CROPS ON THE N-15 NITROGEN PERCOLATION AND LEACHING DURING THE EARLY WINTER PERIOD, Isotopenpraxis, 29(1-2), 1993, pp. 93-97