Items where Author is "Hansen, Preben Klarskov"

Number of eprints: 29.

Journal paper

Melander, Bo; Rasmussen, Ilse A.; Holst, Niels and Hansen, Preben Klarskov (2012) Direct control of perennial weeds between crops – implications for organic farming. Crop Protection, 40, pp. 36-42.

Hansen, Preben Klarskov; Willas, Jakob and Kristensen, Kristian (2008) A weed suppressive index for spring barley (Hordeum vulgare L.) varieties. Weed Research Oxford, 48, pp. 225-236.

Hansen, Preben Klarskov; Rasmussen, Ilse A.; Holst, Niels and Andreasen, Christian (2007) Tolerance of four spring barley (Hordeum vulgare L.) varieties to weed harrowing. Weed Research, 47 (3), pp. 241-251.

El-Nagger, Ahmed; Ounmaa, Andres; Muukka, Eija; Zaleckas, Ernestas; Abraityté, Gerda; Jansons, Imants; Rasmussen, Jim; Ahnström, Johan; Pirhofer-Walzl, Karin; Jensen, Katherine O’Doherty; Jørgensen, Kirstine F.; Sarunaite, Lina; Bleidere, Mara; Knudsen, Marie Trydeman; Pugliese, Massimo; Nielsen, Merete Højrup Møller; Mugurerza, Natalia Bellostas; Bakewell-Stone, Petra; Hansen, Preben Klarskov; Al-Kufaishi, Sermed Adil Abed-Ali; Kobayashi, Sofie; Rydberg, Torbjörn; Klubova, Vera; Liorancas, Viktoras and Høgh-Jensen, Henning (2006) Globalisation as a challenge or opportunity for organic farming. DARCOFenews (1).

Hansen, Preben Klarskov; Rasmussen, Ilse A.; Holst, Niels and Andreasen, Christian (2006) Tolerance to weed harrowing in four spring barley varieties. [Submitted]

Rasmussen, Ilse A. and Hansen, Preben Klarskov (2005) Index beregner hvor godt økologisk vårbyg konkurrerer med ukrudt. [An index calculates how well organic spring barley competes against weeds.] FØJOenyt, 3.

Hansen, Preben Klarskov (2005) Forskelle i bygsorters tolerance overfor ukrudtsharvning. [Differences in tolerance to weed harrowing by spring barley varieties.] FØJOenyt, 2.

Olesen, Jørgen E.; Hansen, Preben Klarskov; Berntsen, Jørgen and Christensen, Svend (2004) Simulation of Above-Ground Suppression of Competing Species and Competition Tolerance in Winter Wheat Varieties. Field Crop Research, 89, pp. 263-280.

Working paper

Holst, Niels; Melander, Bo; Rasmussen, Ilse A. and Hansen, Preben Klarskov (2012) Cirsium arvense responses to stubble cultivation and catch crops in organic cropping systems. Working paper. [Completed]

Hansen, Preben Klarskov (2007) Using multi-temporal sensor-based measurements in early growth stages to estimate potential yield of spring barley (Hordeum vulgare L.) varieties in competition with weeds. Working paper, Department of Integrated Pest Management, University of Aarhus, Faculty of Agricultural Sciences . [Unpublished]

Conference paper, poster, etc.

Melander, Bo; Rasmussen, Ilse A. and Hansen, Preben Klarskov (2011) Nye danske resultater med bekæmpelse af Kveke (Elytrigia repens), Hestehov (Tussilago farfara) og Åkertistel (Cirsium arvense) i økologisk jordbrug. Speech at: National seminar, “Flerårige ugras i eng og åker”, Sarpsborg, d. 8 feb. 2011, Sarpsborg, Norge.

Hansen, Preben Klarskov and Rasmussen, Ilse A. (2010) Nye resultater med bekæmpelse af følfod og tidsler. [New results on control of coltsfoot and canadian thistle.] In: Videncentret for Landbrug, Det Jordbrugsvidenskabelige Fakultet Aarhus Universitet (Eds.) Sammendrag af indlæg Plantekongres 2010 12.-14. januar i Herning Kongrescenter, pp. 328-329.

Hansen, Preben Klarskov; Kristensen, Kristian and Willas, Jakob (2006) Forskellige sorters konkurrenceevne overfor ukrudt. [Competitiveness in different varieties against weeds.] In: Sammendrag af indlæg 3. Danske Plantekongres. Herrning 10.-11. Januar 2006, Danmarks JordbrugsForskning & Landcentret, pp. 342-343.

Hansen, Preben Klarskov and Rasmussen, Ilse A (2005) Sorters vekselvirkning med miljøet, betydning af mekanisk ukrudtsbekæmpelse. [Genotype*Environment interaction, importance of mechanical weed control.] Speech at: BAR-OF netværksmøde, Forskningscenter Risø, 14. december 2005.

Hansen, Preben Klarskov (2005) Suggested outline of the thesis "Crop-Weed interactions determined by sensor techniques"(COMSENS). Paper at: Midtterm Seminar, KVL, 25. October 2005.

Hansen, Preben Klarskov (2005) Tolerance to weed harrowing in spring barley genotypes. In: Proceedings from the 13th European Weed Research Society (EWRS) Symposium, CD-ROM.

Rasmussen, Ilse A.; Melander, Bo; Hansen, Preben Klarskov and Holst, Niels (2004) Langsigtet balance i ukrudtsbestanden. [Long-Term balance in the weed population.] In: Seminar om Planteværn 2004, Landbrugsafgrøder, Dansk Landbrugsrådgivning, Landcentret, Planteavl, pp. 12-15.

Report

Hansen, Preben Klarskov; Kristensen, Kristian and Rasmussen, Ilse A. (2005) Forsøgsbeskrivelse af specialforsøg BAROF WP2 2005. [Description of the specieal field experiment BAROF WP2 2005.] Danish Institute of Agricultural Sciences , Department of Integrated Pest Management.

Hansen, Preben Klarskov; Rasmussen, Ilse A.; Kristensen, Kristian and Willas, Jakob (2004) Forslag til forsøgsdesign for WP1 2004 og 2005 på Forskningscenter Flakkebjerg. [Proporsal of experimental desing for WP1 in 2004 and 2005 at Research Centre Flakkebjerg.] Danmarks JordbrugsForskning , Afdeling for Plantebeskyttelse.

Hansen, Preben Klarskov; Kristensen, Kristian and Rasmussen, Ilse A. (2004) Forsøgsbeskrivelse af specialforsøg BAR-OF WP2 2004. Danmarks JordbrugsForskning , Afdeling for Plantebeskyttelse.

Rasmussen, Ilse A.; Østergård, Hanne; Willas, Jakob; Nielsen, Niels Erik; Hansen, Preben Klarskov; Hovmøller, Mogens and Backes, Gunter (editor): Rasmussen, Ilse A. (Ed.) (2004) Hvad er en god vårbyg til økologisk jordbrug? Danish Institute of Agricultural Sciences , Dept. of Crop Protection.

Hansen, Preben Klarskov (2004) Important values in the PhD-project "Crop-Weed interaction determined by sensor techniques (COMSENS)" and the project "Characteristics of spring barley varieties for organic farming (BAR-OF)". Danisk institute og Agricultural Sciences , Department for Crop Protection.

Hansen, Preben Klarskov and Rasmussen, Ilse A. (2003) Design og sortsvalg i specialforsøg BAROF-WP2 – Ukrudtskonkurrence. Danish Institute of Agricultural Sciences , Dept. of Crop Protection.

Lund-Nielsen, Tina; Mejer, Helena; Gunnarsson, Carina; Hansen, Preben Klarskov and Grigalaviciene, Ilona (2003) How is ideologies related to actions? Royal Veterinary and Agricultural University , Unit for Learning and Interdisciplinary Methods.

Report chapter

Hansen, Preben Klarskov (2006) Beregning af konkurrenceindeks (KI). [Calculation of competitive index (KI).] In: Deneken, Gerhard and Pedersen, Jon Birger (Eds.) Sortsforsøg 2006. Korn bælgsæd og olieplanter. Danmarks JordbrugsForskning og Dansk Landbrugsrådgvning, Landcentret, Planteavl , 7, 21, 27-28 & 31.

Hansen, Preben Klarskov (2005) Beregning af konkurrenceindeks (KI). [Calculation of competitive index (KI).] In: Deneken, Gerhard and Pedersen, Jon Birger (Eds.) Sortsforsøg 2005. Korn bælgsæd og olieplanter. Danmarks JordbrugsForskning og Dansk Landbrugsrådgvning, Landcentret, Planteavl , 7, 21 & 31.

Hansen, Preben Klarskov (2003) Beregning af konkurrenceindeks (KI). [Calculation of competitive index (KI).] In: Deneken, Gerhard and Pedersen, Jon Birger (Eds.) Sortsforsøg 2003. Korn bælgsæd og olieplanter. Danmarks JordbrugsForskning og Dansk Landbrugsrådgvning, Landcentret, Planteavl , p. 7.

Book chapter

Rasmussen, Ilse Ankjær; Holst, Niels; Graglia, Enrico; Hansen, Preben Klarskov; Melander, Bo; Mathiassen, Solvejg Kopp; Kudsk, Per; Jensen, Peter; Boelt, Birte and Madsen, Katrine Hauge (2004) Ukrudtsøkologi og -biologi. In: Ukrudtsbogen. Danmarks JordbrugsForskning, chapter 2, pp. 19-42.

Other

Hansen, Preben Klarskov (2004) Beregning af konkurrenceindeks i vinterhvede og vårbyg (KI). [Calculation of competitive index for winter wheat and spring barley.] Danmarks JordbrugsForskning og Dansk Landbrugsrådgivning, Landscentret, Planteavl .

This list was generated on Sat Aug 16 12:38:12 2025 CEST.