Zahra Bitarafan
Forsker
Vedlegg
Curriculum VitaeBiografi
Mine forskningsområder er:
- Ugrasbiologi og -bekjemping (kjemisk og ikke-kjemisk), hovedsakelig i korn-, olje- og proteinvekster
- Herbicidresistens
- Fremmede invaderende plantearters biologi og bekjemping
- Ugrasbiodiversitet i landbruksarealer
- Klimaendringer og ugras i et endret klima
- (Andre: ugrasmiddelrester i avlinger og mat, medisinske planter, biokull, …)
Forfattere
Kristian Nikolai Jæger Hansen Benedikte Watne Oliver Zahra Bitarafan Inger Sundheim Fløistad Christian Andreasen Lars Olav BrandsæterSammendrag
Background: Giant hogweed (Heracleum mantegazzianum Sommier and Levier) is a perennial herbaceous plant that can grow to a height of 2-5 m. A single flowering plant can produce more than 20,000 seeds. It is one of Europe’s most widespread and problematic invasive alien species and a severe threat to native biodiversity. Glyphosate is widely used to control H. mantegazzianum. Decades of intensive herbicide spraying have led to environmental pollution, prompting a need to explore new methods to supplement or replace glyphosate. Objective: Non-chemical methods to control H. mantegazzianum were tested and compared with glyphosate application. Methods: In two infested locations in southeast Norway, we compared the efficacy of glyphosate applications with a combination of mechanical cutting of the flowering stem of H. mantegazzianum and hot water treatment (80 °C). Hot water or glyphosate was supplied by foliar application or injection into the root crown. Results: The best method to reduce cover and the number of H. mantegazzianum rosettes and seedlings was achieved with two foliar applications of glyphosate. Cutting the flowering stem and injecting hot water into the root crown was almost as efficient as glyphosate application. Cutting and foliar applications of hot water had the weakest efficacy. Despite the best control and significant growth of grasses after glyphosate treatment, relatively high percentage of bare soil remained in the plots afterwards, increasing the risk of erosion. Conclusions: Cutting and injection of hot water in the root crown may be a viable alternative to glyphosate application in areas where herbicides are undesirable.
Forfattere
Zahra BitarafanSammendrag
Det er ikke registrert sammendrag
Forfattere
Zahra BitarafanSammendrag
Det er ikke registrert sammendrag
Divisjon for bioteknologi og plantehelse
AGROSOIL - Agroøkologisk jordoptimalisering for integrert ugrasbekjempelse
I europeiske dyrkingssystemer er ugrasbekjempelse hovedsakelig basert på kjemiske ugrasmidler og/eller intensiv jordarbeiding. Disse praksisene har imidlertid betydelige miljøpåvirkninger og kan ha negative effekter både på jordkvalitet og mikrobielt liv i jorda.
Divisjon for bioteknologi og plantehelse
Ugras eller kulturplanter -vinneren av klimaendringene
Dette prosjekt undersøker effektene av klimaendring på konkurranse mellom ugras- og kulturplanter og vil gi oss viktig kunnskap for å kunne utvikle tilpassede strategier i møte med et klima i endring.
Divisjon for bioteknologi og plantehelse
Weeds vs. Crops: the winner of climate change
This project investigates the effects of climate change on competition between weeds and crops and will provide essential knowledge for developing adaptation strategies in the face of a changing climate.