Christian Andreasen

Christian Andreasen

Associate Professor

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    ORCID: 0000-0003-0844-141X

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    1. Published

      The Effect of N and P Fertilizers on Yield and Yield Components of Sesame (Sesamum indicum L.) in Low-Fertile Soil of North-Western Ethiopia

      Amare, M., Fisseha, D. & Andreasen, Christian, 2019, In: Agriculture. 9, 10, p. 1-12 227.

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

    2. Published

      Regrowth of weed species after cutting

      Andreasen, Christian, Hansen, C. H., Møller, C. & Kjær-Pedersen, N., 2003, In: Weed Technology. p. 873-879 7 p.

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

    3. Published

      Floraændringer i danske sædskiftemarker: en ny ukrudtsundersøgelse er begyndt

      Andreasen, Christian & Streibig, Jens Carl, 2002, DJF-rapport. 2002 ed. p. 113-118 6 p.

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

    4. Published

      Assessment of weed density at an early stage by use of image processing

      Andreasen, Christian, Rudemo, M. & Sevestre, S., 1997, In: Weed Research. 37, 1, p. 5-18 14 p.

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

    5. Published

      Statistical models for analysing and interpreting data recording by the Raunkiær survey technique

      Andreasen, Christian & Brix, A., 1997, Dina notat. 62 ed. Dina, p. 51-53 3 p.

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

    6. Published

      Assessment of weed densities in spring barley by image analysis

      Andreasen, Christian, Rudemo, M. & Sevestre, S., 1997, Ikke angivet. Rajan, A. (ed.). Malaysian Plant Protection Society, p. 54-58 5 p.

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

    7. Published

      Herbicide resistance in weeds and crops in Denmark

      Andreasen, Christian, Jensen, J. E., Hauge Madsen, K., Silberg Poulsen, G. & Streibig, Jens Carl, 1996. 3 p.

      Research output: Contribution to conference › Paper › Research

    8. Published

      Statistical models for analysing and interpreting data recording by the Raunkiær survey technique

      Andreasen, Christian & Brix, A., 1996, Ikke angivet. Jensen, J. E. (ed.). 47 ed. Dina, p. 21 1 p.

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

    9. Published

      Orienterende undersøgelser vedrørende UV-lys til ukrudtsbekæmpelse

      Andreasen, Christian, 1998, DJF-rapport. Markbrug. 1998 ed. Christian Ejlers, p. 171-177 7 p.

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

    10. Published

      Reduced tillage and weed management in Scandinavia

      Andreasen, Christian, Streibig, Jens Carl & Den¤ Kongelige Veterinær- og Landbohøjskole, 2001. 4 p.

      Research output: Contribution to conference › Paper › Research

    11. Published

      Anvendelse af stråling til ukrudtsbekæmpelse: idé til forskningsområde

      Andreasen, Christian & Øgendal, Lars Holm, 1999. 2 p.

      Research output: Contribution to conference › Paper › Research

    12. Published

      Decline of the flora in Danish arable fields

      Andreasen, Christian, Stryhn, H. & Streibig, Jens Carl, 1996, In: Journal of Applied Ecology. 33, p. 619-626 8 p.

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

    13. Published

      Placement of fertilizer increases the competitive ability of spring barley (Hordeum vulgare L.) on sandy soil

      Andreasen, Christian & Troelsgård Nielsen, M., 2000, Ikke angivet. International Weed Science Society, p. 199 1 p.

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

    14. Published

      Weed control with laser beams: An eco-friendly alternative to herbicides and mechanical weed control

      Andreasen, Christian, Rakhmatulin, I., Saberi, M. & Zhang, Zongyi, 2024, In: A I P Conference Proceedings Series. 294, 1, 6 p., 040001.

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

    15. Published

      Identifikation af afgrøder og ukrudt ved hjælp af billedbehandling: idé til forskningsområde

      Andreasen, Christian, 1999. 2 p.

      Research output: Contribution to conference › Paper › Research

    16. Published

      Biologisk ukrudtsbekæmpelse: et supplement der bør undersøges

      Andreasen, Christian, 1996, In: Jord og Viden. 6, 2 p.

      Research output: Contribution to journal › Journal article › Communication

    17. Published

      Spatial variability of weeds affects estimation of infestation

      Andreasen, Christian, 2004. 1 p.

      Research output: Contribution to conference › Paper › Research

    18. Published

      Hvordan påvirkes floradiversiteten af sædskifte, jordbearbejdning, jordtype samt herbicider?

      Andreasen, Christian, 2002. 2 p.

      Research output: Contribution to conference › Paper › Research

    19. Published

      Kornvalmuen

      Andreasen, Christian, 1999, In: Naturens Verden. 82, 5, p. 28-32 5 p.

      Research output: Contribution to journal › Journal article › Research

    20. Published

      Kortlægning af markvariation ved hjælp af fly og satellitmålinger: idé til forskningsområde

      Andreasen, Christian, 1999. 2 p.

      Research output: Contribution to conference › Paper › Research

    21. Published

      Can Canada thistle be controlled with laser beams?

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 57).

      Research output: Book/Report › Report › Research

    22. Published

      Site-Specific Seed Yield Prediction of Red Fescue (Festuca rubra L.)

      Andreasen, Christian, Rasmussen, Jesper & Bitarafan, Z., 2023, Unleashing the potential of precision agriculture - Book of Abstracts (Posters): 14th European Conference on Precision Agriculture. Canavari, M., Vitali, G. & Mattetti, M. (eds.). Universita di Bologna, p. 119-120 2 p. P59

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

    23. Published

      Increasing weed flora in Danish beet, pea and winter barley fields

      Andreasen, Christian & Stryhn, H., 2012, In: Crop Protection. 36, p. 11-17 7 p.

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

    24. Published

      Safety Issues with Laser Weeding (1): Heat and Fire Risks

      Andreasen, Christian, 2022, WeLASER. 1 p. (Practice Abstract; No. 24).

      Research output: Book/Report › Report › Research

    25. Published

      How does laser irradiation affect crop seeds?

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 64).

      Research output: Book/Report › Report › Research

    26. Published

      Some small dicotyledonous weed seedlings may be challenging to control with laser

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 65).

      Research output: Book/Report › Report › Research

    27. Published

      How do laser beams affect pupae?

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 46).

      Research output: Book/Report › Report › Research

    28. Published

      How do laser beams affect beetles?

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 45).

      Research output: Book/Report › Report › Research

    29. Published

      Side-effects of laser weeding: quantifying off-target risks to earthworms (Enchytraeids) and insects (Tenebrio molitor and Adalia bipunctata) [Corrigendum incl.]

      Andreasen, Christian, Vlassi, Eleni, Johannsen, K. S. & Jensen, Signe Marie, 2023, In: Frontiers in Agronomy. 5, 10 p., 1198840.

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

    30. Published

      Pas på - ukrudtet kommer

      Andreasen, Christian, 2010, In: Agrologisk (Odense). 8, p. 29-31 3 p.

      Research output: Contribution to journal › Journal article › Research

    31. Published

      Growth response of six weed species and spring barley (Hordeum vulgare) to increasing levels of nitrogen and phosphorus

      Andreasen, Christian, Litz, A. & Streibig, Jens Carl, 2006, In: Weed Research. 46, 6, p. 503-512 10 p.

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

    32. Published

      How do laser beams affect earthworm mortality in the soil?

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 42).

      Research output: Book/Report › Report › Research

    33. Published

      Measuring height of red fescue (Festuca rubra) plots using drone imagery

      Andreasen, Christian, Bitarafan, Z., Azim, Saiful & Rasmussen, Jesper, 2019, Improving sown grasslands through breeding and management: Proceedings of the Joint 20th Symposium of the European Grassland Federation and the 33rd Meeting of the EUCARPIA Section "Fodder Crops and Amenity Grasses". Huguenin-Elie, O., Studer, B., Kölliker, R., Reheul, D., Probo, M., P. B., Feuerstein, U., Roldán-Ruiz, I., Mariotte, P. & Hopkins, A. (eds.). p. 342 1 p. (Grassland Science in Europe, Vol. 24).

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

    34. Published

      Differential sowing time of turfgrass species affects the establishment of mixtures

      Andreasen, Christian, Larsen, S. U. & Kristoffersen, P., 2004, In: Crop Science. 44, p. 1315-1322 8 p.

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

    35. Published

      The effect of ultraviolet radiation on the fresh weight of some weeds and crops

      Andreasen, Christian, Hansen, L. & Streibig, Jens Carl, 1999, In: Weed Technology. 13, p. 554-560 7 p.

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

    36. Published

      Prescribed Burning as A Management Tool to Destroy Dry Seeds of Invasive Conifers in Heathland in Denmark

      Andreasen, Christian, Rossing, K. & Ritz, C., 2020, In: Land. 9, 11, 12 p., 432.

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

    37. Published

      How does laser irradiation affect weed seeds?

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 63).

      Research output: Book/Report › Report › Research

    38. Published

      Crop and soil factors of importance for the distribution of plant species on arable fields in Denmark

      Andreasen, Christian & Skovgaard, I., 2009, In: Agriculture, Ecosystems & Environment. 133, 1-2, p. 61-67 7 p.

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

    39. Published

      Decreasing diversity in the soil seed bank after 50 years in Danish arable fields

      Andreasen, Christian, Jensen, H. A. & Jensen, Signe Marie, 2018, In: Agriculture, Ecosystems & Environment. 259, p. 61-71 11 p.

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

    40. Published

      The effect of fertilizer level and foliar-applied calcium on seed production and germination of Gerbera hybrida

      Andreasen, Christian, Kemezys, A. H. & Müller, Renate, 2014, In: HortScience. 49, 5, p. 538-543 6 p.

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

    41. Published

      Evaluation of changes in weed flora in arable fields of Nordic countries - based on danish long-term surveys

      Andreasen, Christian & Streibig, Jens Carl, 2011, In: Weed Research. 51, 3, p. 214-226 13 p.

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

    42. Published

      How do laser beams affect larvae?

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 44).

      Research output: Book/Report › Report › Research

    43. Published

      Weed control with UV-radiation

      Andreasen, Christian, Hansen, L. & Streibig, Jens Carl, 1999. 1 p.

      Research output: Contribution to conference › Paper › Research

    44. Published

      Seed shattering of Bromus hordeaceus L. during the growing season of winter wheat

      Andreasen, Christian & Bitarafan, Z., Mar 2019.

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

    45. Published

      How do laser beams affect ladybugs?

      Andreasen, Christian, 2023, WeLASER. 1 p. (Practice Abstract; No. 43).

      Research output: Book/Report › Report › Research

    46. Published

      Relationship between Crops, Weeds and Soil Factors: a Phytosociological Study

      Andreasen, Christian & Skovgaard, I. M., 2008, 5th International Weed Science Congress: Weeds - local problems/global challenge. WSSA, p. 136-137 1 p.

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

    47. Published

      Changes in abundance and diversity of wild species in grass fields in Denmark

      Andreasen, Christian, Stryhn, H. & Andresen, L. C., 2010, Grassland in a changing world. Schnyder, H., Isselstein, J., Taube, F., Auerswald, K., Schellberg, J., Wachendorf, M., Herrmann, A., Gierus, M., Wrage, N. & Hopkins, A. (eds.). European Grassland Federation, p. 33-35 3 p. (Grassland Science in Europe, Vol. 15).

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

    48. Published

      Using drone imagery to estimate lodging in red fescue (Festuca rubra)

      Andreasen, Christian, Bitarafan, Z., Westergaard, Jesper Cairo & Rasmussen, Jesper, 2019, Improving sown grasslands through breeding and management. Huguenin-Elie, O., Studer, B., Kölliker, R., Regeul, D., Probo, M., Barre, P., Feuerstein, U., Roldán-Ruiz, I., Mariotte, P. & Hopkins, A. (eds.). Wageningen Academic Publishers, p. 309-311 (Grassland Science in Europe, Vol. 24).

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

    49. Published

      Laser weed seed control: challenges and opportunities

      Andreasen, Christian, Vlassi, Eleni, Salehan, N., Johannsen, K. S. & Jensen, Signe Marie, 2024, In: Frontiers in Agronomy. 6, 10 p.

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

    50. Published

      Managing farmland flora to promote biodiversity in Europe

      Andreasen, Christian & Andresen, L. C., 2011, In: CAB Reviews: Perspectives in Agriculture, Veterinary Science, Nutrition and Natural Resources. 6, 047, 11 p.

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

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