Sökning: "mineral nutrients"

Visar resultat 26 - 30 av 43 avhandlingar innehållade orden mineral nutrients.

  1. 26. Organic acids in root exudates and soil solutions. Importance to calcicole and calcifuge behaviour of plants

    Författare :Lena Ström; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nutrient-solubilisation; iron; phosphate; nutrient-limitations; citrate; oxalate; organic acids; root exudation; acidifuge; Calcicole; calcifuge; adaptations.; Plant ecology; Växtekologi;

    Sammanfattning : Many vascular plant species are unable to colonise calcareous sites, the floristic composition of adjacent limestone and acid silicate soils differing markedly. The inability of these 'calcifuge' species to establish themselves and grow on limestone soil appears to mainly be related to their low capacity for solubilising and absorbing phosphate and/or iron from such soils. LÄS MER

  3. 27. Extending Wastewater Treatment Process Models for Phosphorus Removal and Recovery : A Framework for Plant-Wide Modelling of Phosphorus, Sulfur and Iron

    Författare :Kimberly Solon; Industriell elektroteknik och automation; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Benchmark Simulation Model; Anaerobic Digestion Model; Activated Sludge Model; Physico-chemistry; Phosphorus removal; Nutrient recovery;

    Sammanfattning : As problems associated with shortage in resource supply arise, wastewater treatment plants turn to innovation to transform themselves into resource recovery facilities. Water groups worldwide recognize that wastewater treatment plants are no longer disposal facilities but rather sources of clean water, energy and nutrients. LÄS MER

  4. 28. Micronutrients in cereal crops : impact of nutrient management and soil properties

    Författare :Karin Hamnér; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Seven elements essential for plants are defined as micronutrients: boron (B), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), nickel (Ni) and zinc (Zn). Deficiency of these nutrients can cause yield losses in crops and impaired crop quality. LÄS MER

  5. 29. Sanitisation of faecal sludge by ammonia : treatment technology for safe reuse in agriculture

    Författare :Jörgen Fidjeland; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Faecal sludge contains valuable plant nutrients and can be used as a fertiliser in agriculture, instead of being emitted as a pollutant. As this involves a risk of pathogen transmission, it is crucial to inactivate the pathogens in faecal sludge. One treatment alternative is ammonia sanitisation, as uncharged ammonia (NH₃) inactivates pathogens. LÄS MER

  7. 30. Fungal molecular ecology in boreal forests and challenges associated with unidentified environmental DNA sequences

    Författare :Kerri Kluting; Anna Rosling; Martin Ryberg; Sara Branco; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; amplicon sequence variant ASV ; Archaeorhizomycetes; environmental DNA sequencing; high-throughput sequencing; integrative taxonomy; pine forest; podzol soil profile; Pucciniomycotina; Tomicus piniperda; voucherless specimens; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Sammanfattning : Many fungi are characteristically difficult to observe and collect, making the process of documenting the world’s fungal diversity challenging. The vast majority of fungal species are undescribed. LÄS MER