Sökning: "organic farmer"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden organic farmer.

  1. 1. Hållbart jordbruk? : En studie om ekobönders förvaltarskap

    Författare :Hans Strandberg; Dominic Power; David Kronlid; Eva Friman; Uppsala universitet; []
    Nyckelord :Sustainability; sustainable; agriculture; society; stewardship; steward; robust; Kristianstad; farmer; organic farmer; profitability; influence; eco-awareness; agroecology; agroecological; socioeconomy; socioeconomic; socioecology; socioecological; Hållbarhet; hållbart; jordbruk; samhälle; förvaltarskap; förvaltare; robust; robusthet; Kristianstad; bönder; bonde; ekobonde; ekobönder; lönsamhet; inflytande; ekomedvetenhet; agroekologi; sociekonomi; socioekologi; Geography; Geografi;

    Sammanfattning : The term sustainable agriculture may be formulated, but not yet practically integrated in agriculture.This thesis investigates the organic farmers´ ideas and experiences of what they consider sustainable or not sustainable in agriculture. LÄS MER

  3. 2. Black mustard and the butterfly effect : metabolomics of plant-insect interactions under multiple stress conditions

    Författare :Stefano Papazian; Benedicte Albrectsen; Edward Farmer; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; plant physiology; metabolomics; glucosinolates; multiple stress; ozone; Brassica nigra; Pieris brassicae; Brevicoryne brassicae; biology; biologi; Environmental Science; miljövetenskap; molekylärbiologi; Molecular Biology; Entomology; entomologi;

    Sammanfattning : One main goal of ecological research is to understand nature´s complexity, in order to predict the potential impact of environmental perturbations. In this thesis, I investigate the ecological interactions between some of the most ancient organisms living on our planet: plants and insects. LÄS MER

  4. 3. The fate of airborne lead pollution in boreal forest soils

    Författare :Jonatan Klaminder; Ingemar Renberg; John G. Farmer; Umeå universitet; []
    Nyckelord :Air pollution; lead; lead isotopes; peat; forest soil; forest plants;

    Sammanfattning : Lead has a more than three-millennia-long pollution history in Europe. Metal production, burning of coal and use of leaded petrol resulted in a significant pollution of the atmosphere. As a consequence of atmospheric fallout, the Swedish boreal forest is strongly contaminated by airborne lead pollution. LÄS MER

  5. 4. Methods for measurement of reactive metabolites as a basis for cancer risk assessment : Application to 1,3-butadiene and isoprene

    Författare :Charlotta Fred; Margareta Törnqvist; Peter Farmer; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Miljökemi;

    Sammanfattning : 1,3-Butadiene is a general air pollutant associated with combustion of organic matter and is also an extensively used monomer in polymer production. The cancer risk estimation of 1,3-butadiene is encumbered with large uncertainties. LÄS MER

  7. 5. Tillage practices and their impact on soil organic carbon and the microbial community

    Författare :Sofia Hydbom; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tillage; Agriculture; Long-term field experiment; Microorganism; Clayey soil; Soil organic carbon; Farmer; Sweden;

    Sammanfattning : Soil microorganisms are important for climate regulation as well as for plant nutrition. In agricultural soils the microorganisms are affected by management choices, like which type of tillage that is used. LÄS MER