Essays about: "nitrogen"

Showing result 41 - 45 of 995 essays containing the word nitrogen.

  1. 41. The effects of management practices and environmental variables on the biodiversity of Nardus grasslands in the national park Hohe Tauern, Austria

    University essay from SLU/Dept. of Ecology

    Author : Rebecca Paulina Dörner; [2023]
    Keywords : biodiversity; Nardus stricta; Nardus grassland; national park Hohe Tauern; East Tyrol; alpine pastures;

    Abstract : Introduction. A large part of the biodiversity of the Alps is linked to an interaction between the natural environment and traditional land-use practices. This study focuses on the priority habitat type of species rich Nardus grasslands (Natura 2000 Code 6230*), which is endangered, but continues to thrive in extensively managed subalpine pastures. READ MORE

  3. 42. Fungal Effects on Tree Growth in a Primary Succession

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : August Hedberg; Julian Säflund; [2023]
    Keywords : primary succession; succession; ectomycorrhiza; saprotroph; tree growth; Pinus sylvestris; soil fungi;

    Abstract : In the Boreal zone, ectomycorrhiza is the most common mycorrhiza found among trees and helps with nitrogen and nutrient uptake. Most research on mycorrhiza, its effect, and community development are done on secondary succession (succession in an ecosystem after a disturbance) such as after a clearcut. READ MORE

  4. 43. 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

  5. 44. Odlingsförsök med Pinus sylvestris i gransågspån blandat med hydrokol respektive pyrokol

    University essay from SLU/School for Forest Management

    Author : Annica Berglund; Ninja Bernzen; [2023]
    Keywords : alternativt odlingssubstrat; näringsläckage; biokol;

    Abstract : Torv är det vanligaste odlingssubstratet som används idag till de mer än 400 miljoner skogsplantor som årligen levereras till det svenska skogsbruket. Det låga näringsinnehållet och goda vattenhållande förmågan gör att torven går att anpassa efter behov med gödsling och kalkning. READ MORE

  6. 45. Soil health on organic farms : linking organic farmer practices to soil health and yield

    University essay from SLU/Dept. of Soil and Environment

    Author : Lina Johansson; [2023]
    Keywords : organic farming; bulk density; management;

    Abstract : Soil health is a part of the sustainable agriculture which the EU is trying to develop. Organic farming can be one way of working towards more healthy soils. The term soil health can be divided into biological, chemical, and physical aspects of the soil that are necessary to sustain the plants grown. READ MORE