Integrert ugrasbekjemping for økt avling og lønnsomhet i grovfôrproduksjonen 2014-2018

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Det er et mål i Norge om å øke fôrproduksjonen. Ugress i gressåkre kan påvirke fôravling og kvalitet i begge retninger, avhengig av mengden av ugress og arter. Hovedmålet i prosjektet er å utvikle integrerte plantevernstrategier som opprettholder høye grovfôravlinger til husdyr, og involverer minimal bruk av plantevernmidler.

Bakgrunn

There is an aim in Norway to increase forage production. Weeds in grasslands can influence forage yield and quality in both directions depending on amount of weeds and weed species.  

Mål

The main objective in this project is to develop integrated weed management strategies that sustain high forage yields for livestock and involve minimal use of herbicides.  

Fremgangsmåte

We hypothesize that weed control strategies in the renewal phase will reduce the need of herbicides in the subsequent ley years and will lead to higher forage yields and profitability.This will be obtained in field trials in major forage producing areas in Norway to increase knowledge (i) how different methods for fallowing and seed bed preparation affects weed establishment in the seeding year and subsequent ley period, (ii) how crop competitive ability, seeding methods and herbicides influence establishment of grass and clover and control of weed seedlings in the seeding year and how this impact first year ley yield, (iii) knowledge of innovative mechanical measures for weed control in the ley years.Forage quality and economic return of different management strategies from the field trials will be estimated. The results will be disseminated to advisors and growers to increase knowledge and use of effective and profitable integrated weed management strategies. The project will give valuable knowledge for organic production as well.
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