Essays about: "species mix"

Showing result 1 - 5 of 38 essays containing the words species mix.

  1. 1. Evaluation of five hardwood species from Zambia to produce fuel pellets for cooking purposes : Study with a single pellet press including pellet production, post production testing and X-ray examinations

    University essay from Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Author : Annika Silvennoinen; [2023]
    Keywords : Pelletizing; Pellet Production; Wood Species; X-Ray examinations; Pelletisering; Pelletstillverkning; Träslag; Röntgenundersökningar;

    Abstract : 81% of the population in sub-Saharan Africa relies on charcoal and firewood to cover their energy needs for cooking. In Africa charcoal is usually produced by burning tree in a traditional kilns and then the food is cooked with a carbon-fired stoves indoors. READ MORE

  3. 2. Nodulation and biomass development of yellow and blue lucerne under pH stress

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Katarina Boström; [2023]
    Keywords : lucerne; blue lucerne BL ; yellow lucerne YL ; E. meliloti; nodulation; pH;

    Abstract : Approximately 77% of global arable land use is devoted to forage cultivation, which is the basis for animal production and global food security. Therefore a sustainable and biologically diverse forage cultivation is needed. Feed for cattle needs to contain a good balance between fibre, energy and protein. READ MORE

  4. 3. A Comprehensive Review of the Factors Influencing the Environmental Impact of different Species bred in Closed Land-based Recirculating Aquaculture Systems

    University essay from Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Author : Siri Samuelsson; [2022]
    Keywords : Recirculating aquaculture system; renewable electricity; Feed Conversion Ratio; environmental impact; freshwater eutrophication; climate change; land use; cumulative energy use; acidification; Earth and Environmental Sciences;

    Abstract : Today the future supply of seafood is threatened due to human activities which, among other things, has led to overfishing. However, more environmental friendly initiatives of producing seafood have emerged, such as Recirculating Aquaculture Systems (RASs). READ MORE

  5. 4. The ability to create mixed stands by planting Norway spruce and Scots pine every second row

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Eva Higgins Andersson; [2022]
    Keywords : Local site index; seedlings every second row; regeneration; biodiversity; climate change; establishment;

    Abstract : Swedish forests primarily consist of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.). 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