Essays about: "Helena Ström"

Found 2 essays containing the words Helena Ström.

  1. 1. Examination of mycorrhizal associations of Allanblackia stuhlmannii : a tree under current domestication

    University essay from SLU/Dept. of Forest Mycology and Plant Pathology

    Author : Helena Ström; [2013]
    Keywords : Allanblackia stuhlmannii; Symbionts; Arbuscular mycorrhizal fungi; Tree domestication; East Usambara Mountains;

    Abstract : Allanblackia is a tree genus native to humid forests in West, Central and East Africa. Its fruits contain large seeds from which edible high-quality fat can be extracted. READ MORE

  3. 2. Biochar as soil amendment : a comparison between plant materials for biochar production from three regions in Kenya

    University essay from SLU/Dept. of Soil and Environment

    Author : Kajsa Alvum-Toll; Tellie Karlsson; Helena Ström; [2011]
    Keywords : Biochar; Kenya; soil fertility; pyrolysis; pot trial; interviews; soil amendment;

    Abstract : The majority of the people living in sub-Saharan Africa earn their living mainly byfarming. Infertile soils and variable climate make it difficult to reach sufficientcrop yields every year and therefore food security can be low. READ MORE