E-Dissertationen: Search
Now showing items 21-30 of 67
Diagnosing and managing zinc and boron deficiencies in emerging crop production systems of Nepal
(2020-12-02)
The productivity and sustainability of the prevailing crop production systems are being challenged throughout the Indo-Gangetic Plains. Limiting water resources, depletion of soil fertility, social changes and economic ...
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 ...
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 ...
Characterization of mechanisms of resistance in Spodoptera frugiperda to synthetic insecticides and insecticidal proteins
(2021-03-18)
Fall armyworm (FAW), Spodoptera frugiperda(J.E. Smith), is a major lepidopteran pest of maize in the American continent butitis now present in 107 countries worldwide. The control of FAW has relied mainly on the ...
Adaptation assessment of a spring barley population to organic and conventional agro-ecosystems using genome sequencing approaches
(2021-07-26)
Over the past few decades, plant breeding has contributed significantly to increased crop yields in industrial agriculture. Besides, alternative, environmentally friendly farming approaches became more popular in the past ...
Quantitative modelling of the Rural Development Programs of the Common Agricultural Policy - EU-wide and region-specific effects
(2021-03-18)
Rural Developments Programmes (RDPs) of EUs Common Agricultural Policy (CAP) are implemented to promote agricultural competitiveness, sustainable management of natural resources and climate protection, and a balanced ...