Agrar-, Ernährungs- und Ingenieurwissenschaftliche Fakultät: Suche
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Influence of nitrogen and water supply on evapotranspiration, yield and agronomic water use efficiency of winter wheat
(2017-05-09)
The predicted climate change for North West Europe, which will be characterized by higher temperatures and lower rainfall during the summer months, will challenge future food production. Against this background, the question ...
Grazing behavior of two Holstein dairy cow strains under organic farming conditions in Switzerland
(2017-04-11)
The aim of the thesis was to test if concentrate supplementation is required in an organic, pasture-based feeding system and if concentrate supplementation influences grazing behavior. The study consisted of two trials, ...
Binding and mobilization of pharmaceuticals in wastewater-irrigated soils and sediments of the Mezquital Valley, Mexico
(2017-05-16)
The irrigation of crop fields with treated or untreated wastewater has been an ancient practice in many cities around the world and is still a common practice nowadays. In doing so, wastewater is disposed and at the same ...
Managing seasonal soil nitrogen dynamics in inland valleys of the West African savanna zone
(2017-05-16)
Most cropping systems in the Dry Savanna agro-ecological zone of West Africa qualify as low-input systems. Nitrogen is the most limiting nutrient element and the prevailing low-input systems rely mainly on the provision ...
Identification of host genes with a role in sex determination of the plant parasitic cyst nematode, Heterodera schachtii
(2017-07-03)
Cyst nematodes are biotrophic parasites that infect plant roots and cause physiological and structural modifications leading to the formation of syncytial nurse cells. They are sexually dimorphic but the sexual phenotype ......
Kameragesteuerte mechanische Unkrautbekämpfung in Reihenkulturen
(2017-08-14)
Das Institut für Landtechnik der Universität Bonn beschäftigt sich seit einigen Jahren mit der Entwicklung der mechanischen Unkrautbekämpfung für den Bereich innerhalb der Pflanzenreihe. Die Online-Erkennung der einzelnen ...
Kennwerte von Zuckerrüben zur Aufbereitung und Langzeitlagerung für die Verwendung in Biogasanlagen
(2017-10-10)
Bis zur Novellierung des EEG im Jahr 2014 verzeichnete die Biogasbranche und damit der Anbau nachwachsender Rohstoffe in Deutschland einen starken Aufschwung. Aufgrund hoher Maisanteile in den Fruchtfolgen und zunehmender ...
School lunch and short-term effects on children’s cognitive functions: Results from randomized crossover intervention studies
(2017-10-06)
Studies indicate that eating lunch temporarily impairs some aspects of adults' cognitive functioning. Studies of the short-term effects of lunch on child cognition are rare. This thesis provides the results of two randomized ...
Urban green spaces enhance carbon sequestration and conserve biodiversity in cities of the Global South: case of Kumasi, Ghana
(2017-01-24)
Urbanization has the propensity to alter ecosystems, enervate ecosystem function and possibly jeopardise human wellbeing. While adequate integration of nature into the city landscape can pragmatically ameliorate urban ...
Nachhaltigkeit in kleinen und mittelständischen Unternehmen der nordrhein-westfälischen Lebensmittelindustrie: Eine empirische Analyse
(2017-03-02)
In der heutigen Gesellschaft spielt das Thema Nachhaltigkeit eine bedeutende Rolle. Gerade Lebensmittel, die von Konsumenten tagtäglich konsumiert werden, unterliegen einer besonderen Beobachtung. Die zunehmende Konzentrierung ...
