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Wiktoria Kaczmarek-Derda

Postdoktor

7 Publikasjoner

Divisjon for bioteknologi og plantehelse

Skadedyr og ugras i skog-, jord- og hagebruk

(+47) 920 12 897
Wiktoria.Kaczmarek@nibio.no

Sted
Ås - Bygg H7

Besøksadresse
Høgskoleveien 7, 1433 Ås

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Forfattere

Wiktoria Kaczmarek-Derda Liv Østrem Merete Myromslien Lars Olav Brandsæter Jan Netland

Sammendrag

Increasing abundance of Juncus effusus (soft rush) and Juncus conglomeratus (compact rush) in pastures and meadows in western Norway has caused reductions in forage yield and quality in recent decades. Understanding plant development and regrowth following cutting is essential in devising cost-effective means to control rushes. In a field experiment in western Norway, we investigated development of above- and below-ground fractions of rush from seedlings to three-year-old plants, including the impact on vigour of disturbing growth by different cutting frequencies during the period 2009–2012. Each year, the plants were exposed to one or two annual cuts or left untreated and five destructive samplings were performed from March to early December. Juncus effusus showed significantly more vigorous growth than Juncus conglomeratus in the last two years of the study period. The above-ground:below-ground biomass ratio of both species increased mainly in spring and early summer and was reduced in late summer and autumn. Removal of aerial shoots also reduced the below-ground fraction of both species. One annual cut in July effectively reduced biomass production in both species by 30–82%, which was only a slightly smaller reduction than with two annual cuts, in June and August. Mechanical control measures such as cutting can thus effectively reduce rush vigour when performed late in the growing season.

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Forfattere

Kirsten Tørresen Marit Helgheim Wiktoria Kaczmarek-Derda Ievina Sturite

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Forfattere

Kirsten Tørresen Marit Helgheim Wiktoria Kaczmarek-Derda Ievina Sturite

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Forfattere

Wiktoria Kaczmarek-Derda Johannes Andre Folkestad Marit Helgheim Jan Netland Knut Asbjørn Solhaug Lars Olav Brandsæter

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Forfattere

Wiktoria Kaczmarek-Derda Lars Olav Brandsæter Knut Asbjørn Solhaug Liv Østrem Arve Arstein Håkon Pedersen Jan Netland

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Forfattere

Wiktoria Kaczmarek-Derda Lars Olav Brandsæter Knut Asbjørn Solhaug Liv Østrem Arve Arstein Håkon Pedersen Jan Netland

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Forfattere

Wiktoria Kaczmarek-Derda Lars Olav Brandsæter Jan Netland

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Det er ikke registrert sammendrag