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The roles of nutrition-sensitive interventions and market access in enhancing household food security and resilience in Sierra Leone
(2021-05-17)
Using Sierra Leone – a post-conflict country in West Africa – as a case study, this dissertation addresses pressing issues on how to make smallholder agriculture more nutrition-sensitive, mitigate the adverse effects of ...
Options for sustainable agricultural intensification in maize mixed farming systems: explorative ex-ante assessment using multi-agent system simulation
(2021-02-17)
Nutrient depletion is a major limiting factor to agricultural sustainability in cereal dominated smallholder farming systems in Africa where over 80% of arable land is unsuitable to support primary productivity. This ...
Uranium accumulation in agricultural soils as derived from long-term phosphorus fertilizer applications
(2021-03-04)
It is well known that uranium (U) in mineral phosphorus (P) fertilizers may accumulate in agricultural soils; yet, this U accumulation occurs at different rates, likely depending on the type of fertilizer used. To substantiate ...
Evaluating rice performance in contrasting East African wetlands using an experimental and modelling approach
(2021-10-07)
Rice (Oryza spp.) has become an important staple food and cash crop across East Africa, and is now playing a pivotal role in regional food security and national economies. Since regional rice yields remain low, intensification ......
Reis (Oryza spp.) hat sich in ganz Ostafrika zu einem wichtigen Grundnahrungsmittel und Cash-Crop entwickelt und spielt heute eine zentrale Rolle für die regionale Ernährungssicherheit und Volkswirtschaften. Da ......
Reis (Oryza spp.) hat sich in ganz Ostafrika zu einem wichtigen Grundnahrungsmittel und Cash-Crop entwickelt und spielt heute eine zentrale Rolle für die regionale Ernährungssicherheit und Volkswirtschaften. Da ......
Modelling the dynamics of land use & intensification in the Kilombero Valley, Tanzania
(2021-06-17)
This thesis intends to examine the determinants and results of farmer’s decisions to uptake different paths of intensification, land use, and its dynamics over time by building a spatially and temporally explicit agent-based ...
Combining Fluorescence and Reflectance to Quantify Dynamics in Photosynthetic Regulation
(2021-12-14)
Photosynthesis in the field is anything but steady-state. Because environment is changing, understanding plant’s photosynthetic activity in situ is challenging. Measurement of solar-induced fluorescence (SIF), along with ......
The Economics of Irrigation Systems in Ethiopia: Technological and Institutional Analysis
(2021-12-14)
The Government of Ethiopia has made a strong commitment to developing and expanding various types of irrigation systems, technologies, and institutions among smallholder farmers. As a result, the irrigated area in the ...
Anbauoptimierung durch Mischanbau und inhaltsstoffliche sowie sensorische Qualitätseigenschaften morphinarmer Winter- und Sommermohnsorten (Papaver somniferum L.)
(2021-05-04)
Der Anbau und die Vermarktung von Mohnsamen aus regionalem Anbau bieten Chancen, eine alte Kulturpflanze in moderne Agrarökosysteme und Betriebskonzepte zu integrieren und diese ökologisch wie ökonomisch aufzuwerten. ...
Environment-dependent regulation of flowering time in a barley (Hordeum vulgare L.) MAGIC population
(2020-10-21)
Barley (Hordeum vulgare L.) is used as a source for food and feed and is the fourth widely cultivated cereal world-wide. Flowering time is a complex trait controlled by endogenous and environmental factors that marks ...
Establishment of an experimental model for dairy cows of divergent peripartal mobilization of body reserves: Profiling circulating steroid hormones and the mRNA abundance of steroid metabolizing enzymes in liver and in adipose tissue
(2021-12-16)
The lactation cycle of dairy cows is characterized by physiological, metabolic, and endocrine changes that also affect adipose tissue (AT) function and portion. These changes include lipogenesis during periods of nutrient ...