Sökning: "couch grass"

Visar resultat 6 - 9 av 9 uppsatser innehållade orden couch grass.

  1. 6. Vilken effekt har lärkrutor på ogräsfloran vid ekologisk höstveteodling?

    L3-uppsats, SLU/Dept. of Crop Production Ecology

    Författare :Linda Gustafsson; [2008]
    Nyckelord :Alauda arvensis; lärkrutor; höstveteodling; ogräs; ekologisk;

    Sammanfattning : This study forms part of the R&D project "Improved survival of bird chicks in organic fields" managed by the Rural Economy & Agricultural society in Uppsala. The skylark (Alauda arvensis) is a species that has decreased drastically in Sweden as a consequence of more intensive cropping. LÄS MER

  3. 7. Kvickrotens reaktion på klippning och konkurrens i rajgräs- och vitklöverbestånd

    L3-uppsats, SLU/Dept. of Crop Production Ecology

    Författare :Per Modig; [2007]
    Nyckelord :kvickrot; klippning; växtkonkurrens; rajgräs; vitklöver; ogräskontroll;

    Sammanfattning : Couch grass (Elymus repens (L.) Gould) is a severe weed in Sweden, and since both the use of herbicides and cultivation should be decreased, it will become increasingly problematic to control couch. LÄS MER

  4. 8. Vallbrott med hjälp av grisar

    L3-uppsats, SLU/Dept. of Soil Sciences

    Författare :Charlotta Norén; [2007]
    Nyckelord :grisar; bearbetning;

    Sammanfattning : To investigate the possibilities for effective soil tillage, that could imply lower costs, lower negative environmental impact and in addition a meaningful occupation for foraging pigs, a field experiment was carried out in Gränna, Småland, during growing season 2006. The experiment contained two treatments that were repeated three times and were carried out on a couch grass-infected fallow on a light soil close to Sweden's second largest lake, Vättern. LÄS MER

  5. 9. Kvickrotsstudier: 1. Kvickrotens reaktion på myllningsdjup, kvävemängd och kväveplacering i konkurrens med gröda. 2. Reducerad glyfosatanvändning på trädad åkermark

    L3-uppsats, SLU/Dept. of Soil Sciences

    Författare :Sam Forsberg; [2005]
    Nyckelord :glyfosat; fånggröda; putsning; stubbearbetning; kväveplacering; kvävetillgång; kvickrot; konkurrens;

    Sammanfattning : 1. Reaction on burial depth and nitrogen availability and placement in competition with a crop In this trial it was investigated how couch grass (Elymus repens) changes its ability to compete in stands of wheat and barley with different burial depth and different amounts and placement of nitrogen. LÄS MER