@inproceedings{orgprints3628,
          editor = {J He\ss and G Rahmann},
           title = {Beeinflusst der Boden die N-Freisetzung aus pflanzlichen D\"ungern?},
          author = {Christina Stadler and Hauke Heuwinkel and Sabine von Tucher and Reinhold Gutser and Marianne Scheu-Helgert and Urs Schmidhalter},
       publisher = {kassel university press GmbH, Kassel},
            year = {2005},
         journal = {Ende der Nische, Beitr\"age zur 8. Wissenschaftstagung \"Okologischer Landbau},
        keywords = {Pflanzenern?hrung, Gem?sebau, pflanzliche D?nger},
             url = {http://orgprints.org/3628/},
        abstract = {One consequence of the BSE-crisis is, that animal residue derived N-fertilisers used in organic horticulture are to be replaced. As an alternative plant derived N-fertilisers have been investigated. In an incubation experiment these fertilisers mineralised 40 to 60  % of the total N applied. Net N-mineralisation in the incubation experiment as well as plant N-utilisation in a pot experiment were closely related to the N-content of the fertilisers. Fertilisers increased the N-uptake of plants in any soil. Neither texture nor the content of Corg explained the observed differences in fertiliser use efficiency .}
}