E-Dissertationen: Suche
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The role of post-harvest supplementary light exposure for ripening and quality development of tomato fruit
(2020-11-23)
The major aim of the present work was to evaluate the optimal exposure time and effects of red light and short periods of daily ultraviolet (UV) on the post-harvest quality of green tomato fruit during ripening. The ...
Biogas production in the light of the German Fertilization Ordinance: An economic and environmental assessment at farm and regional scale
(2021-11-26)
In Germany, the expansion of biogas plants is fostered by the Renewable Energy Sources Act to support the energy transition. Beneficial aspects of biogas such as providing flexible renewable energy and generating additional ...
Root-restricting layers in German agricultural soils: Extent, cause and management strategies
(2020-10-21)
Subsoil, i.e., soil below 30 cm depth, harbours great amounts of water and nutrients. However, physical and chemical barriers for vertical root elongation may restrict plants from accessing subsoil resources. Such ...
Synthese und Charakterisierung von funktionalen Lignin-basierten Polyurethan-Coatings aus unmodifiziertem und modifiziertem Kraft-Lignin
(2020-12-02)
Bedingt durch die zunehmende Rohstoffknappheit rückt die Suche nach alternativen, nachhaltigen Rohstoffen immer mehr in den Vordergrund. Im Hinblick auf effiziente chemische Verwertbarkeit bietet Lignin zahlreiche Vorteile ...
Iron isotope fractionation in arable soil and graminaceous crops
(2020-11-24)
Soils contain large quantities of Fe, however, the Fe-solubility is very low. Plants have developed two efficient strategies to secure Fe uptake from soil under Fe-deficient conditions: (i) the sequential acidification-r ...
Decision analysis and hyperspectral imaging to support farmers in ornamental heather production
(2022-02-02)
Ornamental Heather (Calluna vulgaris) is an important crop for the farmers of Germany’s Lower Rhine region. These farmers produce more than 78% of the ornamental heather in Germany. Successful production of this crop ......
Die Callune (Calluna vulgaris) gehört zu den wichtigsten Zierpflanzen am Niederrhein. Die Produzent*innen erzeugen dort mehr als 78% der in Deutschland produzierten Callunen. Die erfolgreiche Produktion erfordert die ......
Die Callune (Calluna vulgaris) gehört zu den wichtigsten Zierpflanzen am Niederrhein. Die Produzent*innen erzeugen dort mehr als 78% der in Deutschland produzierten Callunen. Die erfolgreiche Produktion erfordert die ......
Phosphorus digestibility and metabolizable energy concentrations of contemporary cereal grain varieties fed to growing pigs
(2021-02-01)
Cereal grains are a major feedstuff in pig nutrition across the world. Due to their high starch content and their high inclusion rates, they supply the majority of energy in diets for pigs. At the same time they also provide ...
Implications of topography and agronomic practices for soil biogeochemical and microbiological properties in Upper Eastern Ghana hilly farmland
(2022-02-10)
While topography can infer erosion potential, implementation of convention practices can trigger accelerated erosion, and both pose major threats to soil abiotic properties and microbiota. The majority of farmlands in the ...
Sensor-Based Phenotyping of Plant’s Physiological Responses to Abiotic Stress
(2022-02-03)
Plant phenotyping can be defined as the systematic recording of morphological, anatomical, physiological and chemical characteristics of plants, as well as their developments and responses to stimuli. The common use of ...
Intergenerational Mobility and the Children of Migrants in Indonesia
(2022-02-23)
Although there has been substantial increase in human development in Indonesia, individual inequality has not reduced significantly.
This dissertation focuses on intergenerational mobility and its interplay with ...
This dissertation focuses on intergenerational mobility and its interplay with ...