Essays about: "stallgödsel"

Showing result 21 - 25 of 40 essays containing the word stallgödsel.

  1. 21. Nitrogen flow in Scania : substance flow analysis on a regional level

    University essay from SLU/Dept. of Energy and Technology

    Author : Johanna Hellstrand; [2015]
    Keywords : substance flow analysis; fertilizer; sewage sludge; wastewater; urine separation; manure;

    Abstract : In this thesis, the flows of reactive nitrogen (Nr) in Scania were investigated and quantified. The thesis was also intended to form a basis for comparison between the urban nitrogen flow and other flows of nitrogen within Scania. The management of nitrogen in society has disturbed the natural nitrogen cycle. READ MORE

  3. 22. Yeast in forage crops and silage aerobic stability at 15 Swedish dairy farms

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Annica Persson; [2015]
    Keywords : fungi; grass crop; ensiling; hygienic quality; losses; jäst; ensilage; lagringsstabilitet; grönmassa;

    Abstract : This study investigates the role of yeast in green crop and its impact on the aerobic stability of silage. Fresh crop was collected from 15 farms in southern and middle parts of Sweden during the summer 2014; samples from the primary harvest was collected from eight farms and samples from the first regrowth harvest was collected from seven farms. READ MORE

  4. 23. Utveckling i samarbete : lantbrukarsamarbete inom biogasproduktion i Sverige

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Gunilla Meurling; [2015]
    Keywords : biogas; samarbete; lantbruk; förnybar energi; aktörssamverkan;

    Abstract : Framställning av biogas är en ny produktionsgren inom svenskt lantbruk. År 2009 infördes ett statligt investeringsstöd för biogasanläggningar som i huvudsak rötar stallgödsel. Stödet har inneburit en ökning av både gårdsbiogasanläggningar och större gemensamt ägda samrötningsanläggningar. READ MORE

  5. 24. Energy and nutrient recovery from dairy manure : Process design and economic performance of a farm based system

    University essay from Linköpings universitet/Industriell miljöteknik; Linköpings universitet/Tekniska högskolan

    Author : Filip Celander; Johan Haglund; [2014]
    Keywords : Manure; cattle; fertiliser; nutrient recovery; renewable energy; manure separation; struvite; Stallgödsel; gödsel; gödselseparering; växtnäring; förnyelsebar energi; struvit;

    Abstract : This thesis assessed the technical and economic premises for installing systems that process manure in order to recover nutrients and inherent energy. The main purpose of recovering nutrients was to extract phosphorus from the manure, so as to be able to distribute more of the manure on the farm without exceeding the phosphorus regulation. READ MORE

  6. 25. Ammoniakförluster vid flytgödselhantering : myllning och surgörning som metoder för att minska avgång vid spridning

    University essay from SLU/Dept. of Soil and Environment

    Author : Johannes Eriksson; Victor Olaison; [2014]
    Keywords : stallgödsel; ammoniakavgång; kväve; direktmyllning; svavelsyra;

    Abstract : The ammonia emissions are an environmental issue since they contribute to eutrophication. By far the largest source of ammonia emissions is manure from agriculture and should therefore be reduced. Loss of ammonia is not only negative for the environment but also to the farmer who loses nitrogen that could have been used by the crop. READ MORE