info:oai:orgprints.org:12230info:ofi/fmt:xml:xsd:bookSchaubDagmarSchaub, DagmarPaulsenHans MartenPaulsen, Hans MartenBöhmHerwartBöhm, HerwartRahmannGeroldRahmann, Gerold2008Mineral nitrogen in the course of a cash crop and two livestock rotations - first results from the long-term monitoring Trenthorstproceeding