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Now showing items 1-10 of 12
Dissertation
Effect of management strategies on the performance of ruminant livestock production systems and the safety of plant and animal products in the city of Sikasso, Mali
(kassel university press, 2012-05-02)
The regional population growth in West Africa, and especially its urban centers, will bring about new and critical challenges for urban development policy, especially in terms of ensuring food security and providing employment for the growing population. (Peri-) urban livestock and vegetable production systems, which can contribute significantly to these endeavours, are limited by various constraints, amongst them limited access to expensive production factors and their (in)efficient use. To achieve sustainable ...
Dissertation
Untersuchungen zu Controlled Traffic Farming und satellitenbasierten Lenksystemen
(2012-11-02)
Diese Arbeit behandelt Controlled Traffic Farming (CTF) Anbausysteme, bei denen für alle Arbeitsgänge satellitengesteuert immer dieselben Fahrspuren benutzt werden. Lässt sich mit CTF die Belastung des Bodens verringern und die Effizienz von Direktsaat-Anbausystemen steigern? Neben agronomischen und bodenphysikalischen Parametern wurden Auswirkungen von Lenksystemen und Umsetzungsmöglichkeiten von CTF in die Praxis untersucht.
Die Analyse einer CTF-Umsetzung unter europäischen Bedingungen mit der Verwendung von ...
Dissertation
Cleanliness versus cow comfort – an insolvable problem?
(2012-02-27)
Cubicle should provide good resting comfort as well as clean udders. Dairy cows in cubicle houses often face a restrictive environment with regard to resting behaviour, whereas cleanliness may still be impaired. This study aimed to determine reliable behavioural measures regarding resting comfort applicable in on-farm welfare assessments. Furthermore, relationships between cubicle design, cow sizes, management factors and udder cleanliness (namely teats and teat tips) were investigated.
Altogether 15 resting measures ...
Dissertation
The role of ligneous vegetation for livestock nutrition in the sub-Sahelian and Sudanian zones of West Africa: Potential effects of climate change
(2012-12-07)
Climate change and variability in sub-Saharan West Africa is expected to have negative consequences for crop and livestock farming due to the strong dependence of these sectors on rainfall and natural resources, and the low adaptive capacity of crops farmers, agro-pastoralist and pastoralists in the region. The objective of this PhD research was to investigate the anticipated impacts of expected future climate change and variability on nutrition and grazing management of livestock in the prevailing extensive agro-pastoral ...
Dissertation
Untersuchung der Eignung von Kräutern zur Sodenproduktion
(2012-08-15)
Als Kräuter werden alle krautigen Pflanzen, die nicht zu den Gehölzen und zu den Gräsern zählen, bezeichnet. Sie erfüllen wichtige Funktionen bei der Förderung von Insekten und der Ästhetik von Landschaften und tragen zur Verbesserung des Grundfutters landwirtschaftlicher Nutztiere bei. Ansaaten von Kräutern in geschlossene Vegetationsdecken und bei Neuanlagen sind durch deren langandauernde Entwicklungsphasen sehr schwierig zu realisieren. Eine innovative Option zur Etablierung in Grünlandbeständen kann die Herstellung ...
Dissertation
Agricultural practices and horizontal nutrient balances in urban gardens and the alternative use of urban agricultural land in Khartoum, Sudan
(2012-02-16)
The surge in the urban population evident in most developing countries is a worldwide phenomenon, and often the result of drought, conflicts, poverty and the lack of education opportunities. In parallel with the growth of the cities is the growing need for food which leads to the burgeoning expansion of urban and peri-urban agriculture (UPA). In this context, urban agriculture (UA) contributes significantly to supplying local markets with both vegetable and animal produce. As an income generating activity, UA also ...
Dissertation
Matter flows and balances in urban vegetable gardens of Bobo Dioulasso, Burkina Faso (West Africa)
(kassel university press, 2012-07-30)
Many efforts are undertaken for sustaining urban agriculture in African cities. This study therefore investigated nutrient management practices in urban vegetable gardens of Bobo Dioulasso, Burkina Faso (West Africa). Nitrogen (N), phosphorus (P), potassium (K), and carbon (C) fluxes were quantified and nutrient balances calculated for three gardens representing the typical commercial gardening + field crops and livestock system (cGCL) and three gardens representing the commercial gardening + semi-commercial field ...
Dissertation
Effects of Organic and Inorganic Fertilizers on Growth and Yield of Banana (Musa AAA cv. Malindi) in Oman
(2012-12-06)
The Sultanate of Oman is located on the south-eastern coast of the Arabian Peninsula, which lies on the south-western tip of the Asian continent. The strategic geographical locations of the Sultanate with its many maritime ports distributed on the Indian Ocean have historically made it one of the Arabian Peninsula leaders in the international maritime trade sector. Intensive trading relationships over long time periods have contributed to the high plant diversity seen in Oman where agricultural production depends ...
Dissertation
Matter fluxes in mountain oases of Al Jabal Al Akhdar, Oman
(2012-04-05)
Since 1970 when Sultan Qaboos bin Said Al Said took over power from this father, agriculture in Oman has undergone major transformations as a consequence of rapid population and economic growth. In this process groundwater extraction has dramatically increased to meet domestic and agricultural needs. Recently, the agro-ecosystem of ancient mountain oases of Oman have received greater attention as interest has grown to understand the causes of their often millennia old sustainable productivity.
Particularly little ...
Dissertation
Application of biogas slurries from energy crops to arable soils and their impact on carbon and nitrogen dynamics
(2012-10-19)
The use of renewable primary products as co-substrate or single substrate for biogas production has increased consistently over the last few years. Maize silage is the preferential energy crop used for fermentation due to its high methane (CH4) yield per hectare. Equally, the by-product, namely biogas slurry (BS), is used with increasing frequency as organic fertilizer to return nutrients to the soil and to maintain or increase the organic matter stocks and soil fertility. Studies concerning the application of energy ...