Jens Erik Ørum

Jens Erik Ørum

Senior adviser, Senior Advisor

Member of:

    ORCID: 0000-0003-2690-7586

    Publication year:
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    1 - 100 out of 129Page size: 100
    1. 2024
    2. Published

      Kort notat vedrørende mulige averse effekter af et tilskud til en reduceret kvælstofanvendelse

      Ørum, Jens Erik & Olsen, Jakob Vesterlund, Feb 2024, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet. 6 p. (IFRO Udredning; No. 2023/40).

      Research output: Book/Report › Report › Commissioned

    3. 2023
    4. Published

      Beregning af grundlaget for en støttesats for målrettet kvælstofregulering 2024

      Ørum, Jens Erik & Thomsen, I. K., 2023, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet. 14 p. (IFRO Udredning; No. 2023/31).

      Research output: Book/Report › Report › Commissioned

    5. Published

      Drivers for robot use in field crop farming: farmers’ perspectives from four case areas in Europe

      Tamirat, Tseganesh Wubale, Pedersen, Søren Marcus, Ørum, Jens Erik, de Jonge, E. L. M. & Kool, F., 2023, Precision agriculture ’23: Papers presented at the 14th European Conference on Precision Agriculture. Stafford, J. V. (ed.). Wageningen Academic Publishers, p. 813-820 8 p. 102

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

    6. Published

      EU's Farm to Fork-forordning: Model til beregning af en omkostningseffektiv tilpasning for dansk landbrug

      Ørum, Jens Erik, Kudsk, P. & Jørgensen, L. N., 2023, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet. 17 p. (IFRO Dokumentation; No. 2023/01).

      Research output: Book/Report › Report › Commissioned

    7. Published

      EU’s Farm to Fork-forordning: Tilpasning og omkostninger for dansk landbrug

      Ørum, Jens Erik, Kudsk, P. & Jørgensen, L. N., 2023, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet. 17 p. (IFRO Udredning; No. 2023/01).

      Research output: Book/Report › Report › Commissioned

    8. Published

      Multi-stakeholder perspectives on field crop robots: lessons from four case areas in Europe

      Tamirat, Tseganesh Wubale, Pedersen, Søren Marcus, Ørum, Jens Erik & Holm, Sune Hannibal, 2023, In: Smart Agricultural Technology. 4, 9 p., 100143.

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

    9. Published

      Optimal use of an agricultural robot in an arable crop rotation: a case study from the Netherlands

      Ørum, Jens Erik, Pedersen, Søren Marcus, Tamirat, Tseganesh Wubale, Stratton, Andrew David Harold, Veldhuisen, A. & Hilbrands, H., 2023, Precision agriculture ’23: Papers presented at the 14th European Conference on Precision Agriculture. Stafford, J. V. (ed.). Wageningen Academic Publishers, p. 789-796 8 p. 99

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

    10. 2022
    11. Published

      A new Danish concept for hectare-scale groundwater N-retention: Optimization of catch crop application at field and catchment scale

      Deichmann, M. M., Hansen, B., Wiborg, I. A., Dalgaard, T., Jacobsen, Brian H. & Ørum, Jens Erik, 2022, Land Use and Water Quality: Agriculture and the Environment: Volume of Abstracts. Fraters, D. & Kovar, K. (eds.). p. 122-123 2 p.

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

    12. Published

      Comparison of models for leaf blotch disease management in wheat based on historical yield and weather data in the Nordic-Baltic region

      Andersson, B., Djurle, A., Ørum, Jens Erik, Jalli, M., Ronis, A., Ficke, A. & Jørgensen, L. N., 2022, In: Agronomy for Sustainable Development. 42, 3, 11 p., 42.

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

    13. Published

      Omkostninger ved sløjfninger af ubenyttede brønde og boringer: Kort notat

      Ørum, Jens Erik, 2022, 11 p.. (IFRO Udredning; No. 2022/20).

      Research output: Memorandum/exposition › Memorandum

    14. Published

      Scenario analysis using the Daisy model to assess and mitigate nitrate leaching from complex agro-environmental settings in Denmark

      Rashid, Muhammad Adil, Bruun, Sander, Styczen, Merete Elisabeth, Ørum, Jens Erik, Borgen, S. K., Thomsen, I. K. & Jensen, Lars Stoumann, 2022, In: Science of the Total Environment. 816, 13 p., 151518.

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

    15. Published

      Økonomisk gevinst ved detaljeret retentionskortlægning

      Jacobsen, Brian H. & Ørum, Jens Erik, 2022, In: Vand & Jord. 29, 4, p. 166-168 3 p.

      Research output: Contribution to journal › Journal article › Communication

    16. 2021
    17. Published

      An R package to calculate potential environmental and human health risks from pesticide applications using the ‘Pesticide Load’ indicator applied in Denmark

      Möhring, N., Kudsk, P., Jørgensen, L. N., Ørum, Jens Erik & Finger, R., Dec 2021, In: Computers and Electronics in Agriculture. 191, 106498.

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

    18. Published

      Beregning af mulige støttesatser for målrettet regulering II: Arbejdsnotat med supplerende analyser og modeljusteringer

      Ørum, Jens Erik, Jacobsen, Brian H. & Thomsen, I. K., 2021, 13 p.. (IFRO Udredning; No. 2020/28).

      Research output: Memorandum/exposition › Memorandum

    19. Published

      Beregning af støttesats for målrettet regulering III: Arbejdsnotat om indsats fordelt på efterafgrødegrundareal eller landbrugsareal

      Ørum, Jens Erik, Jacobsen, Brian H. & Thomsen, I. K., 2021, 13 p.. (IFRO Udredning; No. 2020/29).

      Research output: Memorandum/exposition › Memorandum

    20. Published

      Præcisionssprøjtning – vurdering af driftsøkonomisk og miljømæssigt potentiale

      Callesen, G. M., Pedersen, Søren Marcus & Ørum, Jens Erik, 2021, 29 p.. (IFRO Udredning; No. 2021/02).

      Research output: Memorandum/exposition › Memorandum

    21. 2020
    22. Published

      Bilag 4. Kombineret effekt af dræn- og fladevirkemidler: en generel ligning til beregning af effekten af kombinerede kvælstofvirkemidler

      Ørum, Jens Erik, 2020, Virkemidler til reduktion af kvælstofbelastningen af vandmiljøet. Eriksen, J., Thomsen, I. K., Hoffmann, C. C., Hasler, B. & Jacobsen, B. H. (eds.). DCA - Nationalt Center for Fødevarer og Jordbrug, p. 446-451 6 p. (DCA rapport; No. 174).

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

    23. Published

      Economic, environmental and social impacts

      Pedersen, Søren Marcus, Pedersen, Michael Friis, Ørum, Jens Erik, Fountas, S., van Evert, F. K., van Egmond, F., Knierim, Kernecker, M. & Mouazen, A. M., 2020, Agricultural Internet of Things and Decision Support for Precision Smart Farming. Castrignanò, A., Buttafuoco, G., Khosla, R., Mouazen, A. M., Moshou, D. & Naud, O. (eds.). Academic Press, p. 279-330 52 p.

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

    24. Published

      Introducing quinoa in Turkey: farmers perception in the region of Adana

      Pedersen, Søren Marcus, Lind, K. M., Xhoxhi, O., Yazar, A., Jacobsen, S. & Ørum, Jens Erik, 2020, In: Economia Agro-Alimentare. 22, 1, 24 p., 2.

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

    25. Published

      Reduceret tilførsel af mineralsk kvælstofgødning

      Børgesen, C. D., Sørensen, P., Blicher-Mathiesen, G., Olesen, J. E., Kudsk, P., Hutchings, N. J., Jacobsen, Brian H. & Ørum, Jens Erik, 2020, Virkemidler til reduktion af kvælstofbelastningen af vandmiljøet. Eriksen, J., Thomsen, I. K., Hoffmann, C. C., Hasler, B. & Jacobsen, B. H. (eds.). DCA - Nationalt Center for Fødevarer og Jordbrug, p. 221-241 21 p. (DCA rapport; No. 174).

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

    26. Published

      Yield increases due to fungicide control of leaf blotch diseases in wheat and barley as a basis for IPM decision-making in the Nordic-Baltic region

      Jalli, M., Kaseva, J., Andersson, B., Ficke, A., Nistrup-Jørgensen, L., Ronis, A., Kaukoranta, T., Ørum, Jens Erik & Djurle, A., 2020, In: European Journal of Plant Pathology. 158, 2, p. 315-333 19 p.

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

    27. 2019
    28. Published

      Are independent agricultural advisors more oriented towards recommending reduced pesticide use than supplier-affiliated advisors?

      Pedersen, A. B., Nielsen, H. Ø., Christensen, Tove, Ørum, Jens Erik & Martinsen, L., 2019, In: Journal of Environmental Management. 242, p. 507-514 8 p.

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

    29. Published

      Links between pesticide use pattern and crop production in Denmark with special reference to winter wheat

      Jorgensen, L. N., Kudsk, P. & Ørum, Jens Erik, 2019, In: Crop Protection. 119, p. 147-157 11 p.

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

    30. Published

      Optimal kvælstoftildeling til korn: responsfunktioner og metode til produktionsøkonomisk analyse af Landsforsøgene med kvælstoftildeling til vinterhvede og vårbyg samt kvalitetssikring af Normudvalgets indstillinger

      Ørum, Jens Erik, Lund Jensen, J., Thomsen, I. K. & Knudsen, L., 2019, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet. 58 p. (IFRO Rapport; No. 281).

      Research output: Book/Report › Report › Commissioned

    31. Published

      Vandplanlægning: Økonomisk analysegrundlag for vandområdeplaner

      Hansen, L. B., Konrad, M. T. H., Hasler, B., Jacobsen, Brian H. & Ørum, Jens Erik, 2019, Aarhus Universitet, DCE – Nationalt Center for Miljø og Energi. 74 p. (Aarhus Universitet. Nationalt Center for Miljo og Energi. Teknisk Rapport; No. 155).

      Research output: Book/Report › Report › Research

    32. 2018
    33. Published

      Analyser til brug for evaluering af pesticidafgiften: En beskrivelse af ændringer i pesticidernes priser, salg, forbrug og belastning

      Ørum, Jens Erik, Ståhl, L., Kudsk, P. & Jørgensen, L. N., 2018, 74 p.. (IFRO Udredning; No. 2018/01).

      Research output: Memorandum/exposition › Memorandum

    34. Published

      Beregning af støttesats til målrettet regulering 2021

      Ørum, Jens Erik, Jacobsen, Brian H. & Thomsen, I. K., 2018, 10 p.. (IFRO Udredning; No. 2018/19).

      Research output: Memorandum/exposition › Memorandum

    35. Published

      Gridbaseret Udvaskningsmodel for Udvalgte Sædskifter (GUUS): En simpel, kvadratisk udvaskningsmodel kalibreret til NLES4

      Ørum, Jens Erik & Thomsen, I. K., 2018, 23 p.. (IFRO Dokumentation; No. 2017/4).

      Research output: Memorandum/exposition › Memorandum

    36. Published

      Optimal kvælstoftildeling til korn – responsfunktioner og metode til produktionsøkonomisk analyse af landsforsøgene med kvælstoftildeling til vinterhvede

      Ørum, Jens Erik, Thomsen, I. K. & Knudsen, L., 2018, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet. 36 p. (IFRO Dokumentation; No. 2018/1).

      Research output: Book/Report › Report › Commissioned

    37. Published

      Pesticide load - A new Danish pesticide risk indicator with multiple applications

      Kudsk, P., Jørgensen, L. N. & Ørum, Jens Erik, 2018, In: Land Use Policy. 70, p. 384-393 10 p.

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

    38. Published

      Weather risk models for prediction of septoria tritici blotch

      Jørgensen, L. N., Hansen, J. G., Ørum, Jens Erik, Jalli, M., Ronis, A., Djule, A., Anderson, B., Skog, T. E., Ficke, A. & Nordskog, B., 2018.

      Research output: Contribution to conference › Poster › Research

    39. 2017
    40. Published

      Behandlingshyppighed og pesticidbelastning for solgte pesticider 2007-2015

      Ørum, Jens Erik, Kudsk, P., Jørgensen, L. N. & Paaske, K., 2017, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet, 25 p. (IFRO Dokumentation; No. 2017/1).

      Research output: Working paper › Commissioned

    41. Published

      Bekæmpelsesmiddelstatistik 2015: Behandlingshyppighed og pesticidbelastning, baseret på salgsstatistik og sprøjtejournaldata

      Ørum, Jens Erik & Holtze, M. S., 2017, Miljøstyrelsen. 84 p. (Orientering fra Miljoestyrelsen; No. 17).

      Research output: Book/Report › Report › Research

    42. Published

      Bekæmpelsesmiddelstatistik 2016: Behandlingshyppighed og pesticidbelastning baseret på salg og forbrug

      Ørum, Jens Erik (ed.) & Holtze, M. S. (ed.), 2017, Miljøstyrelsen. 87 p. (Orientering fra Miljoestyrelsen; No. 22).

      Research output: Book/Report › Report › Research

    43. Published

      Economics of site-specific and variable-dose herbicide application

      Ørum, Jens Erik, Kudsk, P. & Jensen, P. K., 2017, Precision agriculture: technology and economic perspectives. Pedersen, S. M. & Lind, K. M. (eds.). Springer, p. 93-110 18 p. (Progress in Precision Agriculture; No. 1).

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

    44. Published

      Landbruget og vandområdeplanerne: omkostninger og implementering af virkemidler i oplandet til Norsminde Fjord

      Ørum, Jens Erik, Kjærgaard, C. & Thomsen, I. K., 2017, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet. 44 p. (IFRO Rapport; No. 258).

      Research output: Book/Report › Report › Research

    45. Published

      Reduced fungicide dose in cereals: which parameters to consider?

      Jørgensen, L. N. & Ørum, Jens Erik, 2017, Pesticide Dose: Effects on the Environment and Target and Non-Target Organisms. Duke, S. O., Kudsk, P. & Solomon, K. (eds.). American Chemical Society, p. 73–82 10 p. (A C S Symposium Series, Vol. 1249).

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

    46. Published

      The value of precision for image-based decision support in weed management

      Franco de los Ríos, C., Pedersen, Søren Marcus, Papaharalampos, H. & Ørum, Jens Erik, 2017, In: Precision Agriculture. 18, 3, p. 366–382 17 p.

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

    47. Published

      Udvikling af nye risikomodeller for Septoria (Zymoseptoria tritici) i vinterhvede

      Bligaard, J., Jørgensen, L. N., Axelsen, J., Hansen, J. G., Ørum, Jens Erik, Baby, S. & Nielsen, G. C. N., 2017, Miljøstyrelsen. 95 p. (BEKF; No. 168).

      Research output: Book/Report › Report › Research

    48. 2016
    49. Published

      Erhvervsøkonomisk analyse af reduktioner af kvælstofnormer i landbruget

      Jacobsen, Brian H. & Ørum, Jens Erik, Apr 2016, 13 p.. Feb 22, 2016. (IFRO Udredning; No. 2016/10).

      Research output: Memorandum/exposition › Memorandum

    50. Published

      Behandlingshyppighed og pesticidbelastning 2007-2014: supplerende bilag til bekæmpelsesmiddelstatistik 2014

      Ørum, Jens Erik, Feb 2016, Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet, 14 p. (IFRO Dokumentation; No. 2016/1).

      Research output: Working paper › Research

    51. Published

      Vurdering af model og økonomiske beregninger af bedriftscases for målrettet regulering (MR)

      Ørum, Jens Erik & Thomsen, I. K., 2016, 80 p.. Oct 14, 2016. (IFRO Udredning; No. 2016/27).

      Research output: Memorandum/exposition › Memorandum

    52. 2015
    53. Published

      Driftsøkonomiske konsekvenser af reduceret kvælstofgødskning på udvalgte landbrugsbedrifter

      Ørum, Jens Erik & Schou, Jesper Sølver, Oct 2015, 6 p.. Mar 24, 2015. (IFRO Udredning; No. 2015/34).

      Research output: Memorandum/exposition › Memorandum

    54. Published

      Notat om vurdering af miljø og økonomi for bedrifter i pilotprojektet for ny arealregulering: afprøvning af to modeller til regulering af N-udledning fra landbrugsarealer

      Blicher-Mathiesen, G., Rolighed, J. & Ørum, Jens Erik, 13 Jan 2015, Bilag til Pilotprojekt for ny målrettet arealregulering : afprøvning af prototyper for kvælstofreguleringsmodeller. København: Miljøstyrelsen, 77 p.

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

    55. Published

      An image-based decision support methodology for weed management

      Franco, C., Pedersen, Søren Marcus, Papaharalampos, H. & Ørum, Jens Erik, 2015, Precision agriculture '15: Papers presented at the 10th European Conference on Precision Agriculture. Stafford, J. V. (ed.). The Netherlands: Wageningen Academic Publishers, p. 595-601 7 p.

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

    56. Published

      Bekæmpelsesmiddelstatistik 2014

      Ørum, Jens Erik (ed.) & Hossy, H. (ed.), 2015, København: Miljøstyrelsen. 92 p. (Orientering fra Miljoestyrelsen; No. 13, 2015).

      Research output: Book/Report › Report › Research

    57. Published

      Beskrivelse af det miljøøkonomiske modelapparat anvendt af IFRO til udredning af differentieret arealregulering for NAER i 2014

      Ørum, Jens Erik, 2015, Frederiksberg: Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet, 29 p. (IFRO Dokumentation; No. 2015/2).

      Research output: Working paper › Commissioned

    58. Published

      Hvad fortæller sprøjtejournalerne?

      Ørum, Jens Erik, Jørgensen, L. N. & Kudsk, P., 2015, Sammendrag af indlæg : Plantekongres 2015. Landbrug og fødevarer SEGES, p. 234-237 4 p.

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

    59. 2014
    60. Published

      A short overview of measures for securing water resources for irrigated crop production

      Jensen, C. R., Ørum, Jens Erik, Pedersen, Søren Marcus, Andersen, M. N., Plauborg, F., Liu, Fulai & Jacobsen, S., 2014, In: Journal of Agronomy and Crop Science. 200, 5, p. 333-343 11 p.

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

    61. Published

      Bekæmpelsesmiddelstatistik 2013: behandlingshyppighed og pesticidbelastning, baseret på salgsstatistik og sprøjtejournaldata

      Ørum, Jens Erik (ed.) & Samsøe Petersen, L. (ed.), 2014, Miljøstyrelsen. 98 p. (Orientering fra Miljoestyrelsen; No. 6, 2014).

      Research output: Book/Report › Report › Research › peer-review

    62. Published

      Comparing compensation mussel production costs and traditional agricultural farmers willingness to pay to reduce nutrient loads in the Limfjord

      Frost, Hans Staby, Hasler, B., Hoff, Ayoe, Zandersen, M. & Ørum, Jens Erik, 2014. 21 p.

      Research output: Contribution to conference › Paper › Research › peer-review

    63. Published

      Economic incentives and alternative nitrogen regulation schemes: a spatial sector economic modelling approach

      Jensen, Jørgen Dejgård & Ørum, Jens Erik, 2014, Agricultural cooperative management and policy: new robust, reliable and coherent modelling tools. Zopounidis, C., Kalogeras, N., Mattas, K., van Dijk, G. & Baourakis, G. (eds.). Springer Science+Business Media, p. 267-280 14 p. (Comparative Management, Vol. 2014).

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

    64. Published

      Prediction of Zymoseptoria tritici based historical weather data

      Jørgensen, L. N., Ørum, Jens Erik, Cordsen Nielsen, G., Bligaard, J. & Hansen, J. G., 2014, 11th Conference of the European Foundation for Plant Pathology: Healthy plants - healthy people. p. 86 1 p.

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

    65. Published

      Ranking of fungicides according to risk assessments for health and environment

      Jørgensen, L. N. & Ørum, Jens Erik, 2014, Modern Fungicides and Antifungal Compounds VII: Proceedings of the 17th International Reinhardsbrunn Symposium. Dehne, H. W., Deising, H. B., Fraaije, B., Gisi, U., Hermann, D., Mehl, A., Oerke, E. C., Russell, P. E., Stammler, G., Kuck, K. H. & Lyr, H. (eds.). DPG Verlag, p. 239-244 6 p.

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

    66. 2013
    67. Published

      Analyse af omkostningseffektiviteten ved drivhusgasreducerende tiltag i relation til landbruget

      Dubgaard, Alex, Laugesen, F. M., Ståhl, L., Bang, J. R., Schou, E., Jacobsen, Brian H., Ørum, Jens Erik & Jensen, Jørgen Dejgård, 2013, Frederiksberg: Institut for Fødevare- og Ressourceøkonomi, Københavns Universitet. 302 p. (IFRO Rapport; No. 221).

      Research output: Book/Report › Report › Commissioned

    68. Published

      Bekæmpelsesmiddelstatistik 2012: Behandlingshyppighed og pesticidbelastning, baseret på salgsstatistik og sprøjtejournaldata

      Ørum, Jens Erik (ed.) & Samsøe-Petersen, L. (ed.), 2013, København: Miljøstyrelsen. 114 p. (Orientering fra Miljoestyrelsen; No. 4, 2013).

      Research output: Book/Report › Report › Research

    69. Published

      Biologisk bekæmpelse i kernefrugt: hvilke alternativer til syntetiske pesticider anvendes der i de danske kernefrugtplantager?

      Ørum, Jens Erik & Jacobsen, L. B., 2013, 16 p.. No. 030-0017/12-0720, Mar 27, 2013. (IFRO Udredning; No. 2013/18).

      Research output: Memorandum/exposition › Memorandum

    70. Published

      Farmers perception of quinoa - experience from Bouchane region in Morocco and Adana in Turkey

      Pedersen, Søren Marcus, Benlhabib, O., Xhoxhi, O., Lind, K. M. H. & Ørum, Jens Erik, 2013, Proceeding: Sustainable water use for securing food production in the Mediterranean region under chainging climate: SWUP-MED project final conference. p. 741-753 13 p.

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

    71. Published

      Institutional and structural barriers for implementing on-farm water saving irrigation systems

      Pedersen, Søren Marcus, Boesen, M. V. & Ørum, Jens Erik, 2013, In: Acta Agriculturae Scandinavica. Section C. Food Economics. 9 , Supplement 5, p. 11-26 16 p.

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

    72. Published

      Institutional barriers for producing quinoa in Morcocco - a description of supply chain and markets

      Lind, K. M. H., Pedersen, Søren Marcus, Benlhabib, O. & Ørum, Jens Erik, 2013, Proceeding: Sustainable water use for securing food production in the Mediterranean region under chainging climate: SWUP-MED project final conference. Agadir Morocco, p. 677-689 13 p.

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

    73. Published

      Meromkostninger og tilskudsmuligheder ved anvendelse af biologiske virkemidler i frugt- og bærproduktion på friland samt i tunneller

      Ørum, Jens Erik & Jacobsen, L. B., 2013, 6 p.. No. 030-0017/12-0720, Mar 27, 2013. (IFRO Udredning; No. 2013/19).

      Research output: Memorandum/exposition › Memorandum

    74. Published

      Potentiel reduktion i pesticidbelastning ved substitution af midler og anvendelse af IPM: en analyse af de største afgrøder og pesticidanvendelser

      Ørum, Jens Erik, Jørgensen, L. N. & Kudsk, P., 2013, 17 p.. (IFRO Udredning; No. 2013/17).

      Research output: Memorandum/exposition › Memorandum

    75. Published

      Yield response of quinoa to nitrogen and water under Mediterranean environment

      Ørum, Jens Erik, Jacobsen, S., Choukr-Allah, R., Qadir, M. & Ragab, R., 2013, Abstracts - SWUP-MED project final conference: Sustainable water use for securing food production in the Mediterranean region under changing climate. p. 53 1 p.

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

    76. Published

      Økonomisk konsekvens ved ændret kvælstofregulering – med udgangspunkt i Limfjorden

      Ørum, Jens Erik & Jacobsen, Brian H., 2013, 33 p.. No. 030-0003/13-5480, Mar 22, 2013. (IFRO Udredning; No. 2013/6).

      Research output: Memorandum/exposition › Memorandum

    77. 2012
    78. Published

      Bekæmpelsesmiddelstatistik 2011: behandlingshyppighed og belastning

      Kjølholt, J. (ed.), Ørum, Jens Erik (ed.), Bøje, C. (ed.) & Samsøe-Petersen, L. (ed.), 2012, København: Miljøstyrelsen. 66 p. (Orientering fra Miljøstyrelsen; No. 5, Vol. 2012).

      Research output: Book/Report › Report › Research

    79. Published

      Beregning af meromkostninger ved anvendelse af nyttedyr ved væksthusproduktion af agurker og tomater

      Ørum, Jens Erik & Jacobsen, L. B., 2012, 54 p.. Sep 23, 2012. (FOI Udredning; No. 2012/31).

      Research output: Memorandum/exposition › Memorandum

    80. Published

      Grundlag for miljøøkonomiske kvælstofnormer

      Ørum, Jens Erik, 2012, 5 p.. May 08, 2012. (FOI Udredning; No. 2012/22).

      Research output: Memorandum/exposition › Memorandum

    81. Published

      Miljøbelastning for godkendte pesticider juni-august 2012

      Ørum, Jens Erik, 2012, Frederiksberg: Fødevareøkonomisk Institut, Københavns Universitet. 18 p. (FOI Dokumentation; No. 2012/2).

      Research output: Book/Report › Report › Research

    82. Published

      Pesticidafgift beregnes ikke ud fra skadeeffekt

      Kudsk, P. & Ørum, Jens Erik, 2012, In: Agrologisk. 9, p. 12-13 2 p.

      Research output: Contribution to journal › Journal article › Communication

    83. Published

      The agricultural pesticide load in Denmark 2007-2010

      Samsøe-Petersen, L., Bøje, C., Hansen, L. F., Kjølholt, J., Jørgensen, L. N., Kudsk, P. & Ørum, Jens Erik, 2012, Miljøstyrelsen. 50 p. (Orientering fra Miljoestyrelsen; No. 2/2012).

      Research output: Book/Report › Report › Research

    84. Published

      Udbytte og udvaskning for vinterhvede og vårbyg med og uden normkorrektion

      Ørum, Jens Erik, 2012, 4 p.. May 08, 2012. (FOI Udredning; No. 2012/23).

      Research output: Memorandum/exposition › Memorandum

    85. Published

      Udredning om moniterings, varslings- og beslutningsstøttesystemer for skadevoldere i planteproduktionen i landbrug, gartneri og frugtavl

      Axelsen, J. A., Munk, Lisa, Sigsgaard, L, Ørum, Jens Erik, Streibig, Jens Carl, Navntoft, S., Christensen, Tove, Pedersen, A. B., Elkjær, K., Korsgaard, Maren, Sørensen, P. B. & Bonefeld-Jørgensen, E. C., 2012, Miljøstyrelsen. 192 p.

      Research output: Book/Report › Book › Research

    86. Published

      Økonomisk adfærd ved udvaskningskorrigerede kvælstofnormer

      Ørum, Jens Erik & Jacobsen, Brian H., 2012, 16 p.. Mar 13, 2012. (FOI Udredning; No. 2012/21).

      Research output: Memorandum/exposition › Memorandum

    87. Published

      Økonomiske konsekvenser af udmøntning af kvælstofprognosen

      Jacobsen, Brian H. & Ørum, Jens Erik, 2012, 3 p.. May 10, 2012. (FOI Udredning; No. 2012/29).

      Research output: Memorandum/exposition › Memorandum

    88. 2011
    89. Published

      Biological control in outdoor crops - drivers and barriers

      Sigsgaard, L, Eilenberg, Jørgen & Ørum, Jens Erik, 2011, In: IOBC/wprs Bulletin. 66, p. 7-10 4 p.

      Research output: Contribution to journal › Conference article › Research

    90. Published

      Biologisk ukrudtsbekæmpelse i kornafgrøder med forøget rumlig uniformitet og høj afgrødetæthed

      Olsen, J. M., Griepentrog, H. W., Pedersen, Søren Marcus, Ørum, Jens Erik & Weiner, Jacob, 2011, Miljøstyrelsen. 178 p. (Bekæmpelsesmiddelforskning fra Miljøstyrelsen; No. 129).

      Research output: Book/Report › Report › Research

    91. 2010
    92. Published

      How to minimise direct pesticide load on bees: regional hotspots and the role of MWD systems

      Ørum, Jens Erik & Navntoft, S., 26 Nov 2010. 5 p.

      Research output: Contribution to conference › Paper › Research

    93. Published

      Etablering af økologisk frugt- og bærproduktion

      Ørum, Jens Erik, 2010, 3 p.. Nov 20, 2010. (FOI Udredning; No. 25, Vol. 2010).

      Research output: Memorandum/exposition › Memorandum

    94. Published

      Farmers' incentives to save water with new irrigation systems and water taxation: a case study of Serbian potato production

      Ørum, Jens Erik, Boesen, M. V., Jovanovic, Z. & Pedersen, Søren Marcus, 2010, In: Agricultural Water Management. 98, 3, p. 465-471 7 p.

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

    95. Published

      Notat vedrørende omkostninger ved syn af marksprøjter

      Ørum, Jens Erik, 2010, 3 p.. Mar 19, 2010. (FOI Udredning; No. 6, Vol. 2010).

      Research output: Memorandum/exposition › Memorandum

    96. Published

      Om etablering og drift af konventionelle og økologiske æbleplantager

      Ørum, Jens Erik, 2010, 3 p.. Nov 07, 2010. (FOI Udredning; No. 2010/23).

      Research output: Memorandum/exposition › Memorandum

    97. 2009
    98. Published

      Farm economic and environmental effects of reduced tillage

      Jacobsen, Brian H. & Ørum, Jens Erik, 2009, In: Acta Agriculturæ Scandinavica C - Food Economics. 6, 2, p. 134-142 9 p.

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

    99. Published

      Growers aatitudes to crop protection issues

      Jørgensen, L. N., Jensen, J. E., Jensen, J. E., Noe, E., Ørum, Jens Erik & Rydahl, P., 2009.

      Research output: Contribution to conference › Paper › Research › peer-review

    100. Published

      Improved water use efficiency with new irrigation systems and strategies in potatoes - a case study from Serbia

      Boesen, M. V., Jovanovic, Z., Pedersen, Søren Marcus & Ørum, Jens Erik, 2009, Proceedings of the 17. international farm management congress: agriculture: food, fiber and energy for the future. Guither, H. H., Merry, J. L. & Merry, C. E. (eds.). p. 109-121 13 p.

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

    101. Published

      Potential savings and economic benefits in arable farming from better precision farming and information management

      Pedersen, Søren Marcus, Ørum, Jens Erik, Sørensen, C. G., Fountas, S., Pesonen, L., Blackmore, B. S. & Basso, B., 2009, Precision agriculture '09: papers presented at the 7. European Conference on Precision Agriculture, Wageningen, 2009. Henten, E. J. V., Goense, D. & Lokhorst, C. (eds.). Wageningen Academic Publishers, p. 919-926 8 p.

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

    102. Published

      Sustainable plant production in a changing world - a cross Faculty research network at KU

      Strandmark, L. B., Schjoerring, Jan K., Christensen, Søren, Nybroe, O., Pedersen, J. G. T., Eilenberg, Jørgen, Munk, Lisa, Rønn, Regin, Ciofu, Oana, Bruun, Sander & Ørum, Jens Erik, 2009.

      Research output: Contribution to conference › Poster › Research

    103. Published

      Sustainable plant production in a changing world - formation of a cross-faculty network

      Strandmark, L. B., Schjoerring, Jan K., Christensen, Søren, Nybroe, O., Torp, J., Eilenberg, Jørgen, Munk, Lisa, Rønn, Regin, Ciofu, Oana, Bruun, Sander & Ørum, Jens Erik, 2009, In: IOP Conference Series: Earth and Environmental Science. 6, Session 34, 2 p., 342014.

      Research output: Contribution to journal › Conference abstract in journal › Research

    104. Published

      Water for the irrigation in Denmark: pilot studies on estimating the volume of water

      Riberholdt, L., Larsen, K. & Ørum, Jens Erik, 2009, Danmarks Statistik. 33 p.

      Research output: Book/Report › Report › Research

    105. 2008
    106. Published

      CoolCrop: Sustainable plant production systems to mitigate global warming

      Munkholm, L. J., Petersen, B. M., Hansen, E. M., Petersen, S. O., Lægdsmand, M., Olesen, J. E., Ørum, Jens Erik & Mutegi, J. K., 2008.

      Research output: Contribution to conference › Poster › Research

    107. Published

      Growers' attitudes to crop protection issues

      Jørgensen, L. N., Jensen, J. E., Noe, E., Ørum, Jens Erik & Rydahl, P., 2008, Proceedings Crop Protection in Northern Britain 2008. Crop Protection in Northern Britain, 8 p. (Crop protection in Northern Britain; No. 2008).

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

    108. Published

      Integrating disease control in winter wheat - optimizing fungicide input

      Jørgensen, L. N., Ørum, Jens Erik, Pinnschmidt, H. & Nielsen, G. C., 2008, Modern fungicides and antifungal compounds V. Dehne, H. W., Deising, H. B., Gisi, U., Kuck, K. H., Russel, P. E. & Lyr, H. (eds.). Deutsche Phytomedizinischen Gesellschaft (DPG), p. 197-209 13 p.

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

    109. Published

      Integrating disease control in winter wheat - optimizing fungicide input

      Jørgensen, L. N., Nielsen, G. C., Ørum, Jens Erik, Jensen, J. E. & Pinnschmidt, H., 2008, In: Outlooks on Pest Management (Print Edition). 19, 5, p. 209-213 5 p.

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

    110. Published

      Mulighederne for driftsøkonomiske analyser af en reduceret pesticidanvendelse i de nordiske lande: en beskrivelse af nuværende modeller, data og samarbejdsmuligheder

      Ørum, Jens Erik, Veidal, A., Jørgensen, L. N., Gravesen, L., Eriksson, L. & Söderberg, T., 2008, København: Nordic Council of Ministers. 39 p. (TemaNord; No. 2008:589).

      Research output: Book/Report › Report › Research

    111. Published

      Områdebaserede analyser af driftsøkonomi og miljø: konsekvenser af pløjefri dyrkning for afvandingsoplande på Fyn

      Abildtrup, J., Nissen, C. J. & Ørum, Jens Erik, 2008, København: Fødevareøkonomisk Institut, Københavns Universitet, 43 p. (IFRO Working Paper; No. 12, Vol. 2008).

      Research output: Working paper › Research

    112. Published

      Opdateret analyse af de driftsøkonomiske muligheder for en reduceret pesticidanvendelse i dansk landbrug: en beskrivelse af udviklingen fra 2003-2008

      Ørum, Jens Erik, Boesen, M. V., Jørgensen, L. N. & Kudsk, P., 2008, København: Fødevareøkonomisk Institut, Københavns Universitet. 145 p. (Rapport / Fødevareøkonomisk Institut; No. 197).

      Research output: Book/Report › Report › Research

    113. Published

      Problems with disseminating information on disease control in wheat and barley to farmers

      Jørgensen, L. N., Noe, E., Nielsen, G. C., Jensen, J. E., Ørum, Jens Erik & Pinnschmidt, H., 2008, In: European Journal of Plant Pathology. 121, 3, p. 303-312 10 p.

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

    114. Published

      Profitable and sustainable strategies for future production of spring barley

      Ørum, Jens Erik, Pedersen, Søren Marcus & Boesen, M. V., 2008.

      Research output: Contribution to conference › Poster › Research

    115. 2007
    116. Published

      Analyse af provenu- og fordelingsaspekter ved differentierede værdiafgifter for pesticider: notat udarbejdet for Miljøstyrelsen

      Ørum, Jens Erik, 2007, Fødevareøkonomisk Institut. 25 p. (FOI Udredning).

      Research output: Book/Report › Report › Research

    117. Published

      Decision support systems: barriers and farmers' need for support

      Jørgensen, L. N., Noe, E., Langvad, A. M., Jensen, J. E., Ørum, Jens Erik & Rydahl, P., 2007, In: OEPP/EPPO Bulletin. 37, 2, p. 374-377

      Research output: Contribution to journal › Journal article › Research

    118. Published

      Effects of mechanical weed control in spring cereals - flora, fauna and economy

      Navntoft, S., Esbjerg, Peter, Ørum, Jens Erik, Jensen, A., Johnsen, I., Petersen, B. S., Petersen, P. H. & Kristensen, K., 2007, Copenhagen: Danish Ministry of the Environment, Environmental Protection Agency. 145 p. (Pesticides research; No. 114).

      Research output: Book/Report › Report › Research

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