Jan Kofod Schjørring

Jan Kofod Schjørring

Professor, emeritus


  1. Published

    Improvement of Tryptophan Analysis by Liquid Chromatography-Single Quadrupole Mass Spectrometry Through the Evaluation of Multiple Parameters

    la Cour, R., Jørgensen, H. & Schjoerring, Jan K., 19 Nov 2019, In: Frontiers in Chemistry. 7, p. 1-7 797.

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Improving nitrogen use efficiency in barley (Hordeum vulgare L.) through the cisgenic approach

    Kichey, T. M. R., Holme, I., Møller, I. S., Jahn, T. P., Holm, P. B. & Schjoerring, Jan K., 2009, The proceedings of the International Plant Nutrition Colloquium XVI, UC Davis. eScholarship, University of California, 4 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  3. Published

    Improving nitrogen use efficiency in barley through the cisgenic approach

    Kichey, T. M. R., Holme, I., Møller, I. S., Jahn, T. P., Holm, P. B. & Schjoerring, Jan K., 2009.

    Research output: Contribution to conferencePosterResearch

  4. Published

    Induction and growth of potato tubers as affected by nitrate

    Maeck, G. & Schjoerring, Jan K., 2001, Ikke angivet. Horst, W. J., Schenk, M. K., Bürkert, A., Claassen, N., Flessa, H., Frommmer, W. B., Goldbach, H., Olfs. H. -W., Römheld, V., Sattelmacher, B., Schmidhalter, U., Schubert, S., Wirén, N. V. & Wittenmayer, L. (eds.). Kluwer Academic Publishers, p. 130-131 2 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  5. Published

    Influence of nitrogen and sulphur form on manganese acquisition by barley (Hordeum vulgare)

    Husted, Søren, Thomsen, M. U., Mattsson, M. & Schjoerring, Jan K., 2005, In: Plant and Soil. 268, 1-2, p. 309-317 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Influence of nitrogen nutrition and metabolism on ammonia volatilization in plants

    Mattsson, M., Husted, Søren & Schjoerring, Jan K., 1998, In: Nutrient Cycling in Agroecosystems. 51, p. 35-40 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Inorganic nitrogen absorption by plant roots: physiology and molecular biology

    Glass, A. D. M., Erner, Y., Hunt, T., Kronzucker, H. J., Okamoto, M., Rawat, S., Silim, S., Schjoerring, Jan K., Siddiqi, M. Y., Vidmar, J. J., Wang, M. Y. & Zhuo, D., 1999, Ikke angivet. Gissel-Nielsen, G. & Jensen, A. (eds.). Humana Press, p. 1-16 16 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  8. Published

    Interactions between leaf nitrogen status and longevity in relation to N cycling in three contrasting European forest canopies

    Wang, L., Ibrom, A., Korhonen, J. F. J., Frumau, K. F. A., Wu, J., Pihlatie, M. & Schjoerring, Jan K., 2013, In: Biogeosciences. 10, p. 999-1011 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Interactions between nitrogen, phosphorus and potassium determine growth and N2-fixation in white clover and ryegrass leys

    Jensen, H. H. & Schjoerring, Jan K., 2010, In: Nutrient Cycling in Agroecosystems. 87, 3, p. 327-338 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Interactions between uptake of amino acids and inorganic nitrogen in wheat plants

    Gioseffi, E., de Neergaard, Andreas & Schjoerring, Jan K., 2012, In: Biogeosciences. 9, p. 1509-1518 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Interactions between white clover and ryegrass under contrasting nitrogen availability: N2 fixation, N fertilizer recovery, N transfer and water use efficiency

    Jensen, H. H. & Schjoerring, Jan K., 1997, In: Plant and Soil. 197, p. 187-199 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Investigating the foliar uptake of zinc from conventional and nano-formulations: a methodological study

    Read, T. L., Doolette, C. L., Cresswell, T., Howell, N. R., Aughterson, R., Karatchevtseva, I., Donner, E., Kopittke, P. M., Schjoerring, Jan K. & Lombi, E., 2019, In: Environmental Chemistry. 16, 6, p. 459-469

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Investigation of the individual cytosolic glutamine synthetase genes in Arabidopsis and their function in plant N metabolism

    Møller, I. S. & Schjoerring, Jan K., 2010.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  14. Published

    Iron fortification of rice seeds through activation of the nicotianamine synthase gene

    Lee, S., Jeon, U. S., Lee, S. J., Kim, Y., Persson, Daniel Pergament, Husted, Søren, Schjoerring, Jan K., Kakei, Y., Masuda, H., Nishizawa, N. K. & An, G., 2009, In: Proceedings of the National Academy of Science of the United States of America. 106, 51, p. 22014-22019 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Is it really organic? – Multi-isotopic analysis as a tool to discriminate between organic and conventional plants

    Laursen, Kristian Holst, Mihailova, A., Kelly, S. D., Epov, V. N., Berail, S., Schjoerring, Jan K., Donard, O. F. X., Larsen, E. H., Pedentchouk, N., Marca-Bell, A. D., Halekoh, U., Olesen, J. E. & Husted, Søren, 2013, In: Food Chemistry. 141, 3, p. 2812-2820 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Isolation and characterization of a high affinity SO42-transporter from Hordeum vulgare cv. Klondike

    Vidmar, J. J., Schjoerring, Jan K. & Glass, A. D. M., 1997, Ikke angivet. Cram, W. J., Kok, L. J. D., Stulen, I., Brunold, C. & Rennenberg, H. (eds.). Backhuys Publishers, p. 173-175 3 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  17. Published

    Jern og zink i cerealier

    Persson, Daniel Pergament, Hansen, Thomas Hesselhøj, Thomsen, R. P., Laursen, Kristian Holst, Husted, Søren & Schjoerring, Jan K., 2009, In: Biozoom. 1, p. 12-16 5 p.

    Research output: Contribution to journalJournal articleResearch

  18. Published

    Jord, vand og planter: kursus 250021

    Borggaard, Ole K., Hansen, S., Holm, Peter Engelund, Husted, Søren, Jensen, C. R., Petersen, Carsten & Schjoerring, Jan K., 2007, København: Institut for Grundvidenskab. 289 p.

    Research output: Book/ReportCompendium/lecture notesEducation

  19. Published

    Jord, vand og planter: kursus 250021, 2009-10

    Borggaard, Ole K., Hansen, S., Holm, Peter Engelund, Husted, Søren, Jensen, C. R., Petersen, Carsten & Schjoerring, Jan K., 2009, Institut for Grundvidenskab og Miljø, Københavns Universitet. 280 p.

    Research output: Book/ReportCompendium/lecture notesEducation

  20. Published

    Jord, vand og planter: kursus 250021

    Borggaard, Ole K., Hansen, S., Holm, Peter Engelund, Husted, Søren, Jensen, C. R., Petersen, Carsten & Schjoerring, Jan K., 2008, Department of Basic Sciences and Environment, University of Copenhagen. 279 p.

    Research output: Book/ReportCompendium/lecture notesEducation

  21. Published

    Kinetics of NH4+ and NO3-absorption and H+ fluxes in ryegrass and N2-fixing white clover

    Høgh-Jensen, H., Wollenweber, B. & Schjoerring, Jan K., 1998, Current plant science and biotechnology in agriculture. Elmerich, C., Kondorosi, A. & Newton, W. E. (eds.). 31 ed. Kluwer Academic Publishers, p. 162 1 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  22. Published

    Kinetics of nitrate and ammonium absorption and accompanying H+ fluxes in roots of Lolium perenne L. and N2-fixing Trifolium repens L.

    Jensen, H. H., Wollenweber, B. & Schjoerring, Jan K., 1997, In: Plant, Cell and Environment. 20, p. 1184-1192 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Kompendium i planternes ernæring i land- og havebrug

    Jensen, Lars Stoumann, Eppendorfer, W. H., Magid, Jakob, Nielsen, N. E. & Schjoerring, Jan K., 1996, København: DSR. 411 p.

    Research output: Book/ReportBookEducation

  24. Published

    Kvælstofudnyttelse ved bladgødskning i vinterhvede

    Schjoerring, Jan K., Møller, I. S. & Kichey, T. M. R., 2011, Plantekongres 2011: sammendrag af indlæg; 11-13 januar i Herning Kongrescenter. Videncentret for Landbrug, p. 64-65 2 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  25. Published

    Latent manganese deficiency in barley can be diagnosed and remediated on the basis of chlorophyll a fluorescence measurements

    Schmidt, Sidsel Birkelund, Pedas, P., Laursen, Kristian Holst, Schjoerring, Jan K. & Husted, Søren, 2013, In: Plant and Soil. 372, 1-2, p. 417-429 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

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