Essays about: "agricultural weeds"

Showing result 1 - 5 of 30 essays containing the words agricultural weeds.

  1. 1. Spridning av mjöldryga genom renkavle

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Hugo Lomander; [2023]
    Keywords : Alopecurus myosuroides Huds; Claviceps purpurea Tul; gräs; gräsblandningar; gräskanter; höstsådd; höstvete; kantzoner; klimat; väder;

    Abstract : Mjöldryga (Claviceps purpurea Tul.) är en svampsjukdom som leder till stora skador på framför allt råg och vete. Den är vanligt förekommande i Europa och befaras öka i framtiden. Renkavle (Alopecurus myosuroides Huds. READ MORE

  3. 2. N2 fixation of three legume species in an agroforestry system

    University essay from SLU/Dept. of Soil and Environment

    Author : Hsiang-Ju Fan; [2023]
    Keywords : nitrogen; dinitrogen fixation; legumes; groundnut; stylo; pinto peanut; understorey crop;

    Abstract : Due to the strong soil erosion caused by agricultural activities and sloping landscape, agroforestry has been introduced as a potentially sustainable cropping practice in the mountainous NW Vietnam. Using legumes as understorey crops in these systems has a potential to limit erosion and smother weeds, as well as provide additional nitrogen (N) to the system. READ MORE

  4. 3. Companion crops in winter oilseed rape : effects on nitrogen concentration, biomass, and prevalence of weeds at the end of autumn growth

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Stina Johansson; [2023]
    Keywords : biomass; companion crops; intercropping; legumes; nitrogen concentration; organic cultivation; weeds; winter oilseed rape;

    Abstract : Intercropping can be used as a management system to promote higher yield as well as less weeds,diseases, and insect damage. Legumes are a commonly used companion crop (CC) in intercropping due to the benefit of nitrogen (N) fixation. READ MORE

  5. 4. The effect of life history and weather on onset of flowering and length of flowering period of agricultural weeds

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Amanda Karpaty Wickbom; [2023]
    Keywords : global warming; agricultural weeds; first flowering; flowering phenology;

    Abstract : With a warming climate and the usage of monocultures in food production it is possible we may face more issues concerning food insecurity in the future as pollinators struggle to find food in agricultural landscapes. Therefore, it is of value to know whether common agricultural weeds are important sources of food for pollinators. READ MORE

  6. 5. Biologisk ogräsreglering med mikroorganismer : biologiska ogräsmedel och deras verkan

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Carl Larsson; [2022]
    Keywords : biologisk ogräsmedel; ogräskontroll; registrera; mikroorganism; IPM; bakterie; svamp; virus; kommersialisering; användning;

    Abstract : Ogräs utgör ett stort problem i odlingar världen över, något som måste hanteras. Med start under 1940-talet har kemiska ogräsmedel blivit allt mer grundläggande i hanteringen av ogräs. Samtidigt har antalet resistenta ogräsarter ökat och bristen på nya kemiska verkningsmekanismer är stor. READ MORE