Jan Kofod Schjørring

Jan Kofod Schjørring

Professor, emeritus

ORCID: 0000-0002-2852-3298

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  1. Published

    Regrowth and nutrient composition of different plant organs in grass-clover canopies as affected by phosphorus and potassium availability

    Jensen, H. H., Fabricius, V. & Schjoerring, Jan K., 2001, In: Annals of Botany. 88, p. 153-162 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Rhizodeposition of nitrogen by red clover, white clover and ryegrass leys

    Jensen, H. H. & Schjoerring, Jan K., 2001, In: Soil Biology & Biochemistry. 33, p. 439-448 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. 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 journal › Journal article › Research › peer-review

  4. Published

    Biologisk kvælstoffiksering og recirkulering

    Jensen, E. S., Jørgensen, F., Vinther, F. P., Høgh-Jensen, H. & Schjoerring, Jan K., 1997, Økologisk planteproduktion. Kristensen, E. S. (ed.). Tjele: Danmarks Jordbrugsforskning, Forskningscenter Foulum, Vol. 1997. p. 101-106 6 p. (SP rapport / Statens Planteavlsforsøg).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

  5. Published

    Management of biological nitrogen fixation in grass/clover leys

    Jensen, E. S., Jensen, H. H., Vanman Jørgensen, F., Schjoerring, Jan K. & Vinther, E. P., 1996. 8 p.

    Research output: Contribution to conference › Paper › Research

  6. Published

    Leaf photosynthesis and drought adaptation in field-grown oilseed rape (Brassica napus L.)

    Jensen, C. R., Mogensen, V. O., Mortensen, G., Andersen, M. N., Schjoerring, Jan K., Thage, J. H. & Koribidis, J., 1996, In: Functional Plant Biology. 23, p. 631-644 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Aquaporin homologues in plants and mammals transport ammonia

    Jahn, T. P., Møller, A. L. B., Zeuthen, Thomas, Holm, Lars Morten, Klærke, Dan Arne, Mohsin, B., Kühlbrandt, W. & Schjoerring, Jan K., 2004, In: FEBS Letters. 574, 1-3, p. 31-36 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Ammonium homeostasis and nitrogen use efficiency controlled by transport and assimilation

    Jahn, T. P., Møller, A. L. B., Hoopen, F. T., Bienert, G. P., Hegelund, J. N., Holm, L. M., Zeuthen, T., Klærke, Dan Arne, Mohsin, B., Kühlbrandt, W. & Schjoerring, Jan K., 2005, Plant nutrition for food security, human health and environmental protection. Li, C. P. & al., E. (eds.). Tsinghua University Press, p. 204-205 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  9. Published

    Molecular physiology of ammonium transport and assimilation and the role of aquaammoniaporins

    Jahn, T. P., Møller, A. L. B., Hegelund, J. N., Hoopen, F. T., Bienert, G. P., Dionisi, G., Nielsen, K. H. & Schjoerring, Jan K., 2005. 1 p.

    Research output: Contribution to conference › Poster › Research

  10. Published

    Regulation of apoplastic NH4+ concentration in leaves of oilseed rape

    Høier Nielsen, K. & Schjoerring, Jan K., 1998, In: Plant Physiology. 118, p. 1361-1368 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Ammonia exchange at the tree-atmosphere interface

    Høier Nielsen, K., Schjoerring, Jan K., Erisman, J. W. & Pearson, J., 2002, Trace gas exchange in forest ecosystems. Gasche, R., Papen, H. & Rennenberg, H. (eds.). Dordrecht: Kluwer Academic Publishers, p. 159-173 15 p. (Tree Physiology).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  12. Published

    Residual nitrogen effect of clover-ryegrass sward on a subsequent cereal crop as studied by 15N methodology and mathematical modelling

    Høgh-Jensen, H. & Schjoerring, Jan K., 1996, Ikke angivet. Raupp, J. (ed.). Institute for Biodynamic Research, 12 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  13. Published

    The ¤effect of P- or K-deficiencies on the structure and quality of grass-clover communities

    Høgh-Jensen, H., Rubæk, G. H. & Schjoerring, Jan K., 2000, Grassland science in Europe. Søegaard, K. . . A. . (ed.). 5 ed. Center for Skov, Landskab og Planlægning/Københavns Universitet, p. 406-408 3 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  14. Published

    Shoot nutrient indices as indicators of nitrogen, phosphorus and potassium deficiencies in grassland

    Høgh-Jensen, H. & Schjoerring, Jan K., 2000, Ikke angivet. Lithuanian Institute of Agriculture, p. 124-131 8 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  15. 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 proceeding › Article in proceedings › Research

  16. Published

    Competition for inorganic N in mixtures of white clover and ryegrass

    Høgh-Jensen, H. & Schjoerring, Jan K., 1996.

    Research output: Contribution to conference › Paper › Research

  17. Published

    Effective strategies to diagnose and correct manganese deficiency in cereals

    Husted, Søren, Schmidt, Sidsel Birkelund, Pedas, P. R., Jensen, Poul Erik, Laursen, Kristian Holst & Schjoerring, Jan K., 2017, Proceedings Book: XVIII International Plant Nutrition Colloquium with Boron and Manganese Satellite Meetings. Carstensen, A., Laursen, K. H. & Schjoerring, J. K. (eds.). University of Copenhagen, p. 939-940 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  18. Published

    The mechanisms of differential manganese efficiency in barley genotypes

    Husted, Søren, Hebbern, C. A., Pedas, P., Laursen, Kristian Holst & Schjoerring, Jan K., 2005, Plant nutrition for food security, human health and environmental protection. Li, C. P. & al., E. (eds.). Tsinghua University Press, p. 98-99 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  19. Published

    Bedre bestemmelse af plantetilgængeligt fosfor og mikronæringsstoffer i jord

    Husted, Søren & Schjoerring, Jan K., 2010, Plantekongres 2010: sammendrag af indlæg: 12-14 januar i Herning Kongrescenter. Dansk Landbrugsrådgivning, p. 75 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  20. Published

    The role of atomic spectrometry in plant science

    Husted, Søren, Persson, Daniel Pergament, Laursen, Kristian Holst, Hansen, Thomas Hesselhøj, Pedas, P., Schiller, M., Hegelund, J. N. & Schjoerring, Jan K., 2011, In: Journal of Analytical Atomic Spectrometry. 26, p. 52-79 28 p.

    Research output: Contribution to journal › Review › Research › peer-review

  21. Published

    The speciation of Zn, Fe, S and P in cereal grain tissue using LC-ICPMS and LC-ESIMS

    Husted, Søren, Persson, Daniel Pergament, Hansen, Thomas Hesselhøj & Schjoerring, Jan K., 2009. 1 p.

    Research output: Contribution to conference › Conference abstract for conference › Research

  22. Published

    Mikronæringsstoffernes fordeling og bindingsformer i kornkernen

    Husted, Søren, Persson, Daniel Pergament, Hansen, Thomas Hesselhøj & Schjoerring, Jan K., 2011, Plantekongres 2011: sammendrag af indlæg; 11-13 januar i Herning Kongrescenter. Videncentret for Landbrug, p. 68 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  23. Published

    The plant nutriome: High-throughput profiling of inorganic elements in plants

    Husted, Søren & Schjoerring, Jan K., 2005, Plant Biotech Denmark. The Royal Veterinary and Agricultural University, Department of Plant Biology, p. 10 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  24. Published

    A ¤critical experimental evaluation of methods for determination of NH4+ in plant tissue, xylem sap and apoplastic fluid

    Husted, Søren, Hebbern, C. A., Mattsson, M. & Schjoerring, Jan K., 2000, In: Physiologia Plantarum : An International Journal for Plant Biology. 109, p. 167-179 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    Emission af ammoniak fra planter

    Husted, Søren & Schjoerring, Jan K., 1997, In: Tidsskrift for Landoekonomi. 184, p. 233-240 8 p.

    Research output: Contribution to journal › Journal article › Research

  26. Published

    Ammonia flux between oilseed rape plants and the atmosphere in response to changes in leaf temperature, light intensity, and air humidity

    Husted, Søren & Schjoerring, Jan K., 1996, In: Plant Physiology. 112, p. 67-74 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Teoretiske øvelser i Planternes Ernæring på kurset: Plantevækstfaktorer og afgrødefysiologi A & B

    Husted, Søren, Høgh-Jensen, H., Jensen, Lars Stoumann, Magid, Jakob, Mattsson, M., Mueller, T., Nielsen, N. E., Schjoerring, Jan K. & Wollenweber, B., 1996

    Research output: Book/Report › Compendium/lecture notes › Education

  28. Published

    Plantevækstfaktorer og afgrødefysiologi: teoretiske øvelser i planternes ernæring

    Husted, Søren, Høgh-Jensen, H., Jensen, Lars Stoumann, Magid, Jakob, Mattsson, M., Mueller, T., Nielsen, N. E. & Schjoerring, Jan K., 1997, København: Jordbrugsforlaget. 134 p.

    Research output: Book/Report › Book › Education

  29. Published

    Apoplastic pH and ammonium concentration in leaves of Brassica napus L.

    Husted, Søren & Schjoerring, Jan K., 1995, In: Plant Physiology. 109, p. 1453-1460 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. Published

    The analysis of ammonium in plant tissues

    Husted, Søren, Hebbern, C. A., Mattsson, M. & Schjoerring, Jan K., 2000, Nitrogen in a sustainable ecosystem from the cell to the plant. Martins-Loucão, M. A. & Lips, S. H. (eds.). Leiden: Backhuys Publishers, p. 287-290 4 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  31. 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 journal › Journal article › Research › peer-review

  32. Published

    Stomatal compensation points for ammonia in oilseed rape plants under field conditions

    Husted, Søren, Schjoerring, Jan K., Høier Nielsen, K., Nemitz, E. & Sutton, M. A., 2000, In: Agricultural and Forest Meteorology. 105, p. 371-383 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    Photorespiratory NH4+ production in leaves of wild-type and glutamine synthetase 2 antisense oilseed rape

    Husted, Søren, Mattsson, M., Möllers, C., Wallbraun, M. & Schjoerring, Jan K., 2002, In: Plant Physiology. 130, 2, p. 989-998 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. Published

    Ammonia compensation points in two cultivars of Hordeum vulgare L. during vegetative and generative growth

    Husted, Søren, Mattsson, M. & Schjoerring, Jan K., 1996, In: Plant, Cell and Environment. 19, p. 1299-1306 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. Published

    On-line measurement of essential plant nutrient dynamics in the root medium using ICP-MS with an octopole research system

    Husted, Søren, Holm, Peter Engelund, Hansen, Hans Chr. Bruun & Schjoerring, Jan K., 2003, Ikke angivet. Gesellschaft deutscher chemiker, p. 167 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  36. Published

    Competition between uptake of ammonium and potassium in barley and Arabidopsis roots: molecular mechanisms and physiological consequences

    Hoopen, F. T., Cuin, T. A., Pedas, P., Hegelund, J. N., Shabala, S., Schjoerring, Jan K. & Jahn, T. P., 2010, In: Journal of Experimental Botany. 61, 9, p. 2303-2315 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Cisgenic barley for animal feed

    Holme, I., Dionisio, G., Brinch-Pedersen, H., Vincze, E., Borg, S., Lange, M., Holm, P. B., Schjoerring, Jan K., Kichey, T. M. R., Jahn, T. P., Sandøe, Peter, Lassen, J., Gylling, M., Madsen, K. H., Haastrup, M., Eriksen, L. & Hjortsholm, K., 2009.

    Research output: Contribution to conference › Conference abstract for conference › Research

  38. Published

    Et dansk planteforskningsnetværk for afhjælpning af mikronæringsstofmangel i human ernæring

    Holm, P. B., Schjoerring, Jan K., Rasmussen, S. K. & Cvitanich, C., 2009, In: Biozoom. 1, p. 9-11 3 p.

    Research output: Contribution to journal › Journal article › Research

  39. Published

    NH3 and NH4+ permeability in aquaporin-expressing Xenopus oocytes

    Holm, L. M., Jahn, T. P., Møller, A. L. B., Schjoerring, Jan K., Ferri, D., Klærke, Dan Arne & Zeuthen, Thomas, 2005, In: Pflügers Archiv: European Journal of Physiology. 450, 6, p. 415-428 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    Leaf-atmosphere NH3 exchange of white clover (Trifolium repens L. ) in relation to mineral N nutrition and symbiotic N2 fixation

    Herrmann, B., Mattsson, M., Fuhrer, J. & Schjoerring, Jan K., 2002, In: Journal of Experimental Botany. 53, 366, p. 139-146 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Vertical structure and diurnal variability of ammonia exchange potential within an intensively managed grass canopy

    Herrmann, B., Mattsson, M. E., Jones, S. K., Cellier, P., Milford, C., Sutton, M. A., Schjoerring, Jan K. & Neftel, A., 2009, In: Biogeosciences. 6, 1, p. 15-23 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    Zinc fluxes into developing barley grains: use of stable Zn isotopes to separate root uptake from remobilization in plants with contrasting Zn status

    Hegelund, J. N., Pedas, P., Husted, Søren, Schiller, M. & Schjoerring, Jan K., 2012, In: Plant and Soil. 361, 1-2, p. 241-250 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    Barley metallothioneins: MT3 and MT4 are localized in the grain aleurone layer and show differential zinc binding

    Hegelund, J. N., Schiller, M., Kichey, T., Hansen, Thomas Hesselhøj, Pedas, P., Husted, Søren & Schjoerring, Jan K., 2012, In: Plant Physiology. 159, 3, p. 1125-1137 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. Published

    Metallothioneins - What Are Their Physiological Functions in Barley?

    Hegelund, J. N., Schiller, M., Husted, Søren & Schjoerring, Jan K., 2008.

    Research output: Contribution to conference › Poster › Research

  45. Published

    Transmembrane nine proteins in yeast and Arabidopsis affect cellular metal contents without changing vacuolar morphology

    Hegelund, J. N., Jahn, T. P., Bækgaard, L., Palmgren, Michael & Schjoerring, Jan K., 2010, In: Physiologia Plantarum : An International Journal for Plant Biology. 140, 4, p. 355-367 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    An assessment of the biotechnological use of hemoglobin modulation in cereals

    Hebelstrup, K., Shah, J. K., Simpson, C., Schjoerring, Jan K., Mandon, J., Cristescu, S. M., Harren, F. J. M., Wagner, M., Mur, L. A. J. & Igamberdiev, A. U., 2014, In: Physiologia Plantarum. 150, 4, p. 593-603 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Latent manganese deficiency increases transpiration in barley (Hordeum vulgare)

    Hebbern, C. A., Laursen, Kristian Holst, Ladegaard, A. H., Schmidt, Sidsel Birkelund, Pedas, P. R., Bruhn, D., Schjoerring, Jan K., Wulfsohn, D. & Husted, Søren, 2009, In: Physiologia Plantarum : An International Journal for Plant Biology. 135, 3, p. 307-316 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Genotypic differences in manganese efficiency: field experiments with winter barley (Hordeum vulgare L.)

    Hebbern, C. A., Pedas, P., Schjoerring, Jan K., Knudsen, L. & Husted, Søren, 2005, In: Plant and Soil. 272, 1-2, p. 233-244 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Functions of macronutrients

    Hawkesford, M., Horst, W., Kichey, T. M. R., Lambers, H., Schjoerring, Jan K., Møller, I. S. & White, P., 2012, Marschers's mineral nutrition of higher plants. Marschner, P. (ed.). 3 ed. Elsevier, p. 135-189 55 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  50. Published

    Uptake and utilization of atmospheric ammonia in three native Poaceae species: leaf conductances, composition of apoplastic solution and interactions with root nitrogen supply

    Hanstein, S., Mattsson, M., Jaeger, H. & Schjoerring, Jan K., 1999, In: New Phytologist. 141, p. 71-83 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

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