E-Dissertationen: Suche
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Perceptions and Governance of Food Insecurity Risks among Family Farmers in Southwestern Ethiopia
(2018-04-18)
In Ethiopia, family farming provides livelihood for 81 percent of the population, and accounts for over 96 percent of total agricultural production. However, family farmers often operate under continuous threats of complex ...
Analyzing trade-offs between ecosystem services in multi-functional landscapes
(2018-03-06)
The urgent need to preserve multiple ecosystem services is one of the key challenges in natural resource management globally. A management decision can cause undesired con- sequences when a decision is made without a ...
Occasional direct-seeding of grain legumes in Organic Agriculture in Germany and Brazil: fertilisation with P and S & weed control with natural herbicides
(2018-02-13)
The aim of this work was to test strategies, which improve nutrient supply and weed control in occasional direct-seeded (DS) grain legumes in Organic Agriculture. The effect of intra-row fertilisation of rock phosphate ......
Sustainability of organic and non-organic smallholder farms in Kenya
(2018-06-29)
Smallholder farms play a vital role in the quest for sustainable development, especially in sub- Saharan Africa (SSA) where livelihoods are still heavily reliant on agriculture. Current environmental and socioeconomic ...
Assessing land-use dynamics in a Ghanaian cocoa landscape
(2018-07-11)
Ghana is one of the two West African nations that produce 60% of the World's annual 4 million tonnes cocoa. The Ghanaian cocoa industry is valued at US$ 2 billion and offers direct jobs to 800,000 farming families. Despite ...
The role of local agroforestry practices for enhancing food and nutrition security of smallholding farming households: The case of Yayu area, south-western Ethiopia
(2018-08-15)
When agriculture becomes focused on globally traded commodities, local nutrition may be at risk. The study tested this hypothesis in the coffee landscape of Yayu, south-west Ethiopia, by investigating the role of local ...
The effect of air exposure before and after ensiling on maize silage quality and dietary choice by goats
(2018-07-11)
The overall aim of the thesis was to determine the effect of air exposure before and after ensiling on quality of whole-crop maize silage and to determine the influence of the resulting changes on dietary choice by goats. ...
Action-based and outcome-based payments for environmental services: An experimental auction for tree planting contracts in Kenya
(2018-06-25)
The dissertation represents a first randomized field experiment that compares action-based and outcome-based payments for environmental services (PES). The main aim of the study was to investigate the effect of the ...
Conceptualising and estimating rationalised agricultural optimisation models
(2018-07-19)
Computational modelling for quantitative agricultural policy assessment in the EU employs more farm level oriented approaches in recent years. This follows policy instruments that increasingly target the farm level and ...
Phenotyping of Cercospora beticola resistance of sugar beet genotypes by hyperspectral imaging
(2018-06-28)
Cultivation of disease resistant crops is an important strategy in the integrated pest management which is a guiding principle for good agricultural practice. Therefore, high yielding cultivars with resistance to important ......