Jan Kofod Schjørring

Jan Kofod Schjørring

Professor, emeritus

ORCID: 0000-0002-2852-3298

Publication year:
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251 - 300 out of 317Page size: 50
  1. 2000
  2. Published

    Physiological regulation of plant-atmosphere ammonia exchange

    Schjoerring, Jan K., Husted, Søren, Mäck, G., Høier Nielsen, K., Finnemann, J. & Mattsson, M., 2000, In: Plant and Soil. 221, p. 95-102 8 p.

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

  3. Published

    Post-translational regulation of cytosolic glutamine synthetase by reversible phosphorylation and 14-3-3 protein interaction

    Finnemann, J. & Schjoerring, Jan K., 2000, In: Plant Journal. 24, 2, p. 171-181 11 p.

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

  4. Published

    Regulation of high-affinity nitrate transporter genes and high-affinity nitrate influx by nitrogen pools in roots of barley

    Vidmar, J. J., Zhuo, D., Siddiqi, M. Y., Schjoerring, Jan K., Touraine, B. & Glass, A. D. M., 2000, In: Plant Physiology. 123, p. 307-318 12 p.

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

  5. Published

    Resistance modelling of ammonia exchange over oilseed rape

    Nemitz, E., Sutton, M. A., Schjoerring, Jan K., Husted, Søren & Wyers, G. P., 2000, In: Agricultural and Forest Meteorology. 105, p. 405-425 21 p.

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

  6. 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

  7. Published

    Sources and sinks of ammonia within an oilseed rape canopy

    Nemitz, E., Sutton, M. A., Gut, A., José, R. S., Husted, Søren & Schjoerring, Jan K., 2000, In: Agricultural and Forest Meteorology. 105, p. 385-404 20 p.

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

  8. 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

  9. Published

    Surface/atmosphere exchange and chemical interaction of gases and aerosols over oilseed rape

    Nemitz, E., Sutton, M. A., Wyers, G. P., Otjes, R. P., Schjoerring, Jan K., Gallagher, M. W., Parrington, J., Fowler, D. & Choularton, T. W., 2000, In: Agricultural and Forest Meteorology. 105, p. 427-445 19 p.

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

  10. Published

    TERICA working group 6: trace gas fluxes and ecosystem functioning

    Sutton, M. A., Chapman, S., Christensen, T., Emmett, B., Erisman, J. W., Fowler, D., Hoosbeek, M. R., Jones, M., Milford, C., Nemitz, E., Pilegaard, K., Riedo, M., Schjoerring, Jan K. & Wookey, P. A., 2000, EUR. Sutton, M. A., Moreno, J. M., Putten, W. H. V. D. & Struwe, S. (eds.). 19375 ed. Publications Office, p. 65-74 10 p.

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

  11. 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

  12. 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

  13. Published

    Translocation of NH4+ in oilseed rape plants in relation to glutamine synthetase isogene expression and activity

    Finnemann, J. & 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. 333-334 2 p.

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

  14. Published

    overview of the EXAMINE experiment

    Sutton, M. A., Nemitz, E., Fowler, D., Wyers, G. P., Otjes, R. P., Schjoerring, Jan K., Husted, Søren, Høier Nielsen, K., José, R. S., Moreno, J., Gallagher, M. W. & Gut, A., 2000, In: Agricultural and Forest Meteorology. 105, p. 327-349 23 p.

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

  15. 1999
  16. Published

    Dinitrogen fixation in white clover grown in pure stand and mixture with ryegrass estimated by the immobilized 15N isotope dilution method

    Vanman Jørgensen, F., Jensen, E. S. & Schjoerring, Jan K., 1999, In: Plant and Soil. 208, p. 293-305 13 p.

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

  17. 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 proceeding › Article in proceedings › Research

  18. Published

    Measurements and modelling of NH3 fluxes with European ecosystems

    Sutton, M. A. & Schjoerring, Jan K., 1999.

    Research output: Contribution to conference › Paper › Research

  19. Published

    Plant nutrition, soil fertility, fertilizers and fertilization

    Jensen, Lars Stoumann, Husted, Søren, Magid, Jakob, Nielsen, G. G., Nielsen, H. H., Nielsen, N. E. & Schjoerring, Jan K., 1999, 3. ed. København: Jordbrugsforlaget. 527 p.

    Research output: Book/Report › Book › Education

  20. Published

    Regulation of ammonium distribution in plants

    Schjoerring, Jan K., Finnemann, J., Husted, Søren, Mattsson, M., Høier Nielsen, K. & Pearson, J. N., 1999, Ikke angivet. Gissel-Nielsen, G. & Jensen, A. (eds.). Humana Press, p. 69-82 14 p.

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

  21. Published

    Regulation of the expression of two new members of the BCH family of genes, BCH3 and BCH4, which encode inducible high affinity nitrate transporters in Hordeum vulgare, with relation to nitrate influx

    Vidmar, J. J., Zhuo, D., Siddiqi, M. Y., Schjoerring, Jan K., Touraine, B. & Glass, A. D. M., 1999, Ikke angivet. Gissel-Nielsen, G. & Jensen, A. (eds.). Humana Press, p. 83-94 12 p.

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

  22. Published

    Regulation of the hvst1 gene encoding a high-affinity sulfate transporter from Hordeum vulgare

    Vidmar, J. J., Schjoerring, Jan K., Touraine, B. & Glass, A. D. M., 1999, In: Plant Molecular Biology. 40, p. 883-892 10 p.

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

  23. Published

    Translocation of NH4+ in oilseed rape plants in relation to glutamine synthetase isogene expression and activity

    Finnemann, J. & Schjoerring, Jan K., 1999, In: Physiologia Plantarum : An International Journal for Plant Biology. 105, p. 469-477 9 p.

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

  24. 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

  25. 1998
  26. Published

    Ammonia: emission, atmospheric transport and deposition

    Asman, W. A. H., Sutton, M. A. & Schjoerring, Jan K., 1998, In: New Phytologist. 139, p. 27-48 22 p.

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

  27. Published

    Ammonium and soluble amide-bound nitrogen in leaves of Brassica napus as related to glutamine synthetase activity and external N supply

    Finnemann, J. & Schjoerring, Jan K., 1998, In: Plant Physiology and Biochemistry. 36, 5, p. 339-346 8 p.

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

  28. Published

    Atmospheric ammonia and impacts of nitrogen deposition: uncertainties and challenges

    Schjoerring, Jan K., 1998, In: New Phytologist. 139, p. 59-60 2 p.

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

  29. Published

    Biological nitrogen fixation in grass-clover leys and its transfer to subsequent crops

    Jensen, H. H. & Schjoerring, Jan K., 1998, APMinderhoudhoeve-reeks. Keulen, H. V., Lantinga, E. A. & Laar, H. H. V. (eds.). 2 ed. Landbouwuniversiteit Wageningen, p. 185-190 6 p.

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

  30. Published

    Dynamic interactions between root NH4+ influx and long-distance N translocation in rice: insights into feedback processes

    Kronzucker, H. J., Schjoerring, Jan K., Erner, Y., Kirk, G. J. D., Siddiqi, M. Y. & Glass, A. D. M., 1998, In: Plant and Cell Physiology. 39, 12, p. 1287-1293 7 p.

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

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

  32. 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

  33. Published

    Physiological parameters controlling plant-atmosphere ammonia exchange

    Schjoerring, Jan K., Husted, Søren & Mattsson, M., 1998, In: Atmospheric Environment. 32, 3, p. 491-498 8 p.

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

  34. Published

    Plant nutrition, soil fertility, fertilizers and fertilization

    Jensen, Lars Stoumann, Magid, Jakob, Nielsen, G. G., Nielsen, H. H., Nielsen, N. E. & Schjoerring, Jan K., 1998, 2. ed. København: Jordbrugsforlaget. 471 p.

    Research output: Book/Report › Book › Education

  35. Published

    Rapsplanters kvælstofomsætning

    Schjoerring, Jan K., Husted, Søren, Høier Nielsen, K. & Finnemann, J., 1998, Biokemisk, fysiologiske, molekylærbiologiske og reistensbiologiske undersøgelser i vinterraps. p. 43-53 11 p.

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

  36. 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

  37. Published

    Soil-plant-atmosphere ammonia exchange associated with Calluna vulgaris and Deschampsia flexuosa

    Schjoerring, Jan K., Husted, Søren & Poulsen, M. M., 1998, In: Atmospheric Environment. 32, 3, p. 507-512 6 p.

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

  38. 1997
  39. Published

    Ammonia exchange between plants and the atmosphere: effects of ammonium supply to the roots, dark-induced senescence and reduced GS activity

    Mattsson, M. & Schjoerring, Jan K., 1997, Developments in plant and soil sciences. Ando, T. . . A. . (ed.). 78 ed. Kluwer Academic Publishers, p. 827-831 5 p.

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

  40. Published

    Ammonia exchange between plants and the atmosphere: effects of ammonium supply to the roots, dark-induced senescence and reduced GS activity

    Mattsson, M. & Schjoerring, Jan K., 1997, In: Soil Science and Plant Nutrition. 43, p. 1113-1117 5 p.

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

  41. Published

    Ammonia volatilization from pig slurry applied with trail hoses or broadspread to winter wheat: effects of crop developmental stage, microclimate, and leaf ammonia absorption

    Sommer, S. G., Friis, E., Bach, A. & Schjoerring, Jan K., 1997, In: Journal of Environmental Quality. 26, 4, p. 1153-1160 8 p.

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

  42. 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

  43. 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

  44. 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

  45. 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 proceeding › Article in proceedings › Research

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

  47. Published

    Leaf-atmosphere NH3 exchange in barley mutants with reduced activities of glutamine synthetase

    Mattsson, M., Häusler, R. E., Leegood, R. C., Lea, P. J. & Schjoerring, Jan K., 1997, In: Plant Physiology. 114, p. 1307-1312 6 p.

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

  48. Published

    Measurement of ammonia gas emission from plants

    Schjoerring, Jan K. & Husted, Søren, 1997, Plant volatile analysis. Linskens, H. -F. & Jackson, J. F. (eds.). Berlin: Springer, Vol. 19. p. 73-95 23 p. (Modern methods of plant analysis).

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

  49. Published

    Plant nutrition, soil fertility, fertilizers and fertilization

    Jensen, Lars Stoumann, Magid, Jakob, Nielsen, G. G., Nielsen, H. H., Nielsen, N. E. & Schjoerring, Jan K., 1997, København: Jordbrugsforlaget. 307 p.

    Research output: Book/Report › Book › Education

  50. Published

    Plant-atmosphere ammonia exchange: quantification, physiological regulation and interactions with environmental factors

    Schjoerring, Jan K., 1997, Copenhagen: The Royal Veterinary and Agricultural University, Department of Agricultural Sciences, Plant Nutrition and Soil Fertility Laboratory. 334 p.

    Research output: Book/Report › Ph.D. thesis › Research

  51. 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

  52. Published

    Pod photosynthesis and drought adaptation of field grown rape (Brassica napus L.)

    Mogensen, V. O., Jensen, C. R., Mortensen, G., Andersen, M. N., Schjoerring, Jan K., Thage, J. H. & Koribidis, J., 1997, In: European Journal of Agronomy. 6, p. 295-307 13 p.

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

  53. Published

    Residual nitrogen effect of clover-ryegrass swards on yield and N uptake of a subsequent winter wheat crop as studied by use of 15N methodology and mathematical modelling

    Jensen, H. H. & Schjoerring, Jan K., 1997, In: European Journal of Agronomy. 6, p. 235-243 9 p.

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

  54. Published

    The ¤EXAMINE project: exchange of atmospheric ammonia with European ecosystems

    Sutton, M. A., Nemitz, E., Fowler, D., Wyers, G. P., Otjes, R., José, R. S., Moreno, J., Schjoerring, Jan K., Husted, Søren, Meixner, F. X., Ammann, C., Neftel, A. & Gut, A., 1997, Ikke angivet. Borrell, P. A., Borell, P., Kelly, K. & Seiler, W. (eds.). Computational Mechanics, p. 155-161 7 p.

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

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