10.18453/rosdok_id00001249 Wondemagegnehu, Eshetu Bekele Eshetu Bekele Wondemagegnehu http://d-nb.info/gnd/1046207245 Universität Rostock 2014 630 Agriculture 2014 en http://purl.uni-rostock.de/rosdok/id00001249 urn:nbn:de:gbv:28-diss2014-0001-1 This cumulative dissertation consists of three manuscripts recently published in peer reviewed international scientific journals and other additional work (not yet published). The dissertation begins with an introduction that presents a general background and justification why studying soil organic matter (SOM) at the molecular level is currently an area of the research interest, fundamentals and impact of recycling organic waste as compost in agricultural soil on the composition, stabilization and transformation of SOM.