Sökning: "Thi Thanh Van Nguyen"

Hittade 2 avhandlingar innehållade orden Thi Thanh Van Nguyen.

1. 1. The actinorhizal symbiosis of the earliest divergent Frankia cluster

   Författare :Thi Thanh Van Nguyen; Katharina Pawlowski; Sophia Ekengren; Peter Young; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant Physiology; växtfysiologi;

   Sammanfattning : In recent years, the need to reduce reliance on synthetic nitrogen fertilizer has led to extensive research on biological nitrogen fixation, especially on root nodule symbioses. My study focuses on actinorhizal symbioses, the symbiotic interactions between members of nitrogen-fixing soil actinobacteria from the genus Frankia and a diverse group of plants from eight families, collectively called actinorhizal plants. LÄS MER

3. 2. Soil Degradation of Raised-beds on Orchards in the Mekong Delta Field and Laboratory Methods

   Författare :Quang Pham Van; Per-Erik Jansson; Khoa Le Van; Ingmar Messing; KTH; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; citrus orchards; nutrient; soil fertility; soil strength; soil degradation; alluvial soil; Mekong delta;

   Sammanfattning : Soil degradation is a complex process which may occur anywhere and at any time. It directly affects the physical, chemical and biological processes within the soil profile. Soil degradation can either be as a result of natural hazards or due to manmade actions, such as mismanagement on cropping patterns, soil preparation and cultivation practices. LÄS MER