Items where Author is "Verwijst, Theo"

Number of eprints: 26.

Conference paper, poster, etc.

Hofmeijer, Merel A.J.; Melander, Bo; Salonen, Jukka; Verwijst, Theo; Zarina, Livija and Gerowitt, Bärbel (2018) The arable vegetation of Baltic organic cereal fields as shaped by crop management. Paper at: 18th European Weed Research Society Symposium 2018, Ljubljana, Slovenie, 17-22.06.2018.

Gerowitt, Bärbel; Hofmeijer, Merel A.J.; Melander, Bo; Sonderskov, Mette; Krawczyk, Roman; Kaczmarek, Sylvia; Salonen, Jukka and Verwijst, Theo (2018) From practice to science and back – knowledge and information chains in PRODIVA. Workshop at: 18th European Weed Research Society Symposium 2018, Ljubljana, Slovenie, 17-22.06.2018.

Salonen, Jukka; Hofmeijer, Merel A.J.; Zarina, Livija; Krawczyk, Roman; Verwijst, Theo and Melander, Bo (2018) Viljelijöillä tärkeä rooli rikkakasvikartoitusten partnerina. In: Jalli, Heikki (Ed.) Kasvinsuojelupäivä 2018, Kasvinsuojeluseura ry, Jokioinen, p. 30.

Salonen, Jukka; Hofmeijer, Merel A.J.; Zarina, Livija; Krawczyk, Roman; Verwijst, Theo and Melander, Bo (2018) Farmers deserve credit for contributing to the weed surveys. Paper at: Maataloustieteen päivät 2018, Helsinki, 10.-11.01.2018.

Verwijst, Theo; Lundkvist, Anneli; Krawczyk, Roman and Kaczmarek, Sylvia (2018) Prodiva project - Crop species mixtures for weed suppression. In: New approaches for smarter weed management - Book of abstracts, European Weed Research Society (EWRS), Kmetijski inštitut Slovenije, p. 41.

Zarina, Livija; Salonen, Jukka; Hofmeijer, Merel A.J.; Gerowitt, Bärbel; Lundkvist, Anneli; Verwijst, Theo; Sonderskov, Mette; Melander, Bo; Kaczmarek, Sylvia and Krawczyk, Roman (2017) Undersown effect in weed management in organic cropping systems. In: Book of Abstracts.

Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, Livija and Gerowitt, Bärbel (2017) Problematic weed species in spring sown cereals around the Baltic Sea - an expert database. In: Aakkula, Jyrki; Hakala, Kaija; Huhta, Harri; Iivonen, Sari; Jurvanen, Ulla; Kreismane, Dzidra; Land, Anita; Lähdesmäki, Merja; Malingen, Matti; Mikkola, Minna; Nordlund-Othen, Janne; Nuutila, Jaakko; Peetsmann, Elen; Piskonen, Sirpa; Rasmussen, Ilse A; Skulskis, Virgilijus; Tahvonen, Raija; Taskinen, Sirpa; Ullvén, Karin; Wibe, Atle and Wivstad, Maria (Eds.) NJF Seminar 495 - 4th organic Conference: Organics for tomorrow's food systems, 19 - 21 June 2017, Mikkeli, Finland, 13 (1), NJF Report, pp. 38-40.

Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, Livija and Gerowitt, Bärbel (2017) Problematic weed species in organic arable agriculture around the Baltic Sea - An expert database. Poster at: 14. Wissenschaftstagung Ökologischer Landbau, Freising, Germany, 7-10.03.2017.

Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, L. and Gerowitt, Bärbel (2017) Problematic weed species in organic arable agriculture around the Baltic Sea - an expert database. Poster at: 14. Wissenschaftstagung Ökologischer Landbau, Campus Weihenstephan, Freising-Weihenstephan, 7. -10. März 2017.

Hofmeijer, Merel A.J.; Gerowitt, Bärbel; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, Livija and Melander, Bo (2016) Crop diversification for weed management in North European organic arable cropping systems. Introduction to the study of international research-network on diversification and weed management: PRODIVA. Poster at: 7th International Weed Science Congress, Prague, 19-25 June 2016.

Hofmeijer, Merel A.J.; Gerowitt, Bärbel; Salonen, Jukka; Verwijst, Theo; Zarina, Livija and Melander, Bo (2016) The impact of crop diversification management on weed communities in summer cereals on organic farms in Northern Europe. An introduction to the study. In: Nordmeyer, Henning and Ulber, Lena (Eds.) Julius-K�hn-Archiv, Berlin, 27, pp. 452-456.

Salonen, Jukka; Melander, Bo; Gerowitt, Bärbel; Lundkvist, Anneli; Verwijst, Theo; Krawczyk, Roman; Kaczmarek, Sylvia and Zarina, Livija (2016) Crop diversification and weeds in organic cereal production. In: Maataloustieteen Päivät 2016, Suomen Maataloustieteellinen Seura, Helsinki, Suomen Maataloustieteellisen seuran tiedote No 32, no. 32, p. 161.

Zarina, Livija; Gerowitt, Barbel; Melander, Bo; Salonen, Jukka; Krawczuk, Roman and Verwijst, Theo (2016) Crop diversification for weed management in organic arable cropping systems. In: Proceedings of the 10 th International Scientific and Practical Conference , R ē zeknes Augstskola, 2, pp. 333-336.

Gerowitt, Bärbel; Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo and Zarina, Livija (2015) Team-up crop diversification and weed management: PRODIVA. Better utilization of crop diversification for weed management in North European organic arable cropping systems. Poster at: 17th European Weed Research Society Symposium, Montpellier, 23-26 June 2016.

Zarina, Livija; Gerowitt, Bärbel; Melander, Bo; Salonen, Jukka; Krawczyk, Roman and Verwijst, Theo (2015) Crop diversification for weed management in organic arable cropping systems. In: Proceedings of the 10 th International Scientific and Practical Conference, Rēzeknes Augstskola, Rezekne, 2, pp. 333-336.

Zarina, Livija; Gerowitt, Bärbel; Melander, Bo; Salonen, Jukka; Krawczyk, Roman and Verwijst, Theo (2015) Crop diversification for weed management in organic arable cropping systems. In: Proceedings of the 10 th International Scientific and Practical Conference, Rezekne Higher Education Institution, Rezekne, 2, pp. 333-336.

Report

Verwijst, Theo; Lundkvist, Anneli; Pers Berglund, Anna; Krawczyk, Roman and Kaczmarek, Sylvia (2018) PRODIVA, Crop species mixtures for weed suppression: Deliverability No. D2.3 Technical report. .

Melander, Bo; Gerowitt, Bärbel; Salonen, Jukka; Verwijst, Theo; Lundkvist, Anneli; Zarina, Livija; Hofmeijer, Merel A.J.; Sylwia, Kaczmarek and Roman, Krawczyk (2018) Crop diversification and weeds Acronym: PRODIVA. .

Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Verwijst, Theo; Zarina, Livija; Salonen, Jukka and Gerowitt, Bärbel (editor): Hofmeijer, Merel A.J. (Ed.) (2017) Geographical distribution of challenging weed species - Current knowledge in organic arable farming in the Baltic sea region. Rostock University , Crop Health.

Hofmeijer, Merel A.J. and Verwijst, Theo (editor): Hofmeijer, Merel A.J. (Ed.) (2017) Viktiga ogräsarter i Östersjöregionen - Vanligt förekommande ogräs i ekologisk odling i sex länder kring Östersjön. [Geographical distribution of challenging weed species - Current knowledge in organic arable farming in the Baltic sea region.] Rostock University , Crop Health.

Verwijst, Theo; Lundkvist, Anneli; Krawczyk, Roman and Kaczmarek, Sylvia (2016) PRODIVA WP2. Crop mixtures for weed suppression. Annual Report 2016. .

Verwijst, Theo and Lundkvist, Anneli (2015) PRODIVA WP2. Crop mixtures for weed suppression. Annual Report 2015. .

Other

Lundkvist, Anneli and Verwijst, Theo (2018) Väletablerad gröda och tajmad mekanisk bekämpning - bästa sättet att kontrollera ogräs! . [Completed]

Lundkvist, Anneli and Verwijst, Theo (2018) Inbjudan till möte – Resultat från EU-projektet PRODIVA. . [Completed]

Verwijst, Theo; Lundkvist, Anneli; Krawczyk, Roman and Kaczmarek, Sylvia (2018) PRODIVA Project: Crop species mixtures for weed suppression�. . [Completed]

Lundkvist, Anneli and Verwijst, Theo (2016) Presentation av Core Organic projektet PRODIVA vid fältvandring den 8 juni 2016 i Sala. . [Completed]

This list was generated on Mon Jul 14 00:22:06 2025 CEST.