Doctorates 1999-2009
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| Angraini Süss, Ananta Andy | Recycling of used edible oils/fats in the energy/technical sector - a process and its evaluation. (Prof. Dr.-Ing. R. Krause, Prof. Dr. M. Spiteller) |
| Braimah, Imoro | The Implications of Income Generation for Agricultural Higher Education in Ghana. (Prof. Dr. M. Fremerey, Prof. Dr. B. Knerr) |
| Engelbrecht, Volkmar | The Simultaneous Use of Sorghum (Sorghum bicolor (L.), Moench) for Grain and Fodder Production: Crop Physiological Aspects. (Prof. Dr. S. Jutzi, Prof. Dr. K. Scheffer) |
| Fischer, Jürgen | Smallholder hair sheep farming in the Ecuadorian Amazon fringe region. A socio-economic study. (Prof. Dr. E. S. Tawfik, Prof. Dr. R. Bokermann, Dr. G. Rahmann) |
| Haase, Peter | Zoocoenoses, chemism and structure of regional stream types in the Lower Saxon and North Hessian highlands. (Prof. Dr. M.P.D. Meijering, Prof. Dr. P. Wolff) |
| Kanschik, Wolfgang | The Miombo Woodland Subclimax of the Nothern Region of Zimbabwe. A study of its major plant species and their potential use as bio-indicators. (Prof. Dr. S. Jutzi, Dr. habil. B. Becker) |
| Meinck, Sabine | Table potato cultivation in organic farming. Optimization of the cultivation method through variety selection and Phytophthora prophylaxis. (PD Dr. P. von Fragstein, Prof. Dr. J. Heß, Prof. Dr. G. Leithold) |
| Mohamed, Sohaib Abbas | Analysis of the binding form of xenobiotics in aquatic humic substances. (Prof. Dr. M. Spiteller, Prof. Dr. H. Parlar) |
| Rinke, Gregor | Reduction of ammonia emissions from liquid manure through the addition of lactic acid-containing residual water from the mechanical dewatering of moisture-preserved biomass as a regenerative energy source. (Prof. Dr. K. Scheffer, PD Dr. M. Karpenstein-Machan) |
| Stark, Marco | Soil Management Strategies to Sustain Continuous Crop Production Between Vegetative Contour Strips on Humid Tropical Hillsides: technology development and dissemination based on farmers' adaptive field experimentation in the Philippines. (Prof. Dr. S. Jutzi, Prof. Dr. M. Fremerey) |
| Teves, Lurli B. | The Sociocultural Dimension of People's Participation in Community-Based Development. The Role of Patron-client System in the Philippines. (Prof. Dr. Fremerey, Prof. Dr. B. Knerr) |
| Wöhler, Volko | Processed aluminum salt slag as recultivation material. Studies on the material and water balance of a saline recultivation material in the laboratory and in the field. (Prof. Dr. H. Wildhagen, Prof. Dr. R. Mayer), Innsbruck. (Prof. Dr. Tawfik) |
| Bartsch, Brigitte | Determination of basic principles for the identification of odor-intensive lead substances in the process of biological waste treatment as a prerequisite for continuous emission processes. (Prof. Dr. K. Wiemer, Prof. Dr.-Ing. F.B. Frechen) |
| Bonanos Ortega, Maria de Fatima | Guidelines for the planning of an agricultural mechanization strategy. Using the example of the South Pacific region of Nicaragua. (Prof. Dr.-Ing. R. Krause, Prof. Dr. B. Knerr) |
| Claus, Cornelia | Pasture ecology and grazing management study of pastoral systems with hair sheep in the ever humid tropics using the example of the province of Sucumbios, Ecuador. (Prof. Dr. G. Spatz, Prof. Dr. S. Jutzi) |
| Gilles, Peter | Development and perspectives of urban and peri-urban dairy farming in the district of Maseru/Lesotho.(Prof. Dr. E.S. Tawfik, Prof. Dr. B. Knerr) |
| Haumann, Pera | Further development of a selection program for landscape management goats. (Prof. Dr. E. S. Tawfik, Prof. Dr. W. Holtz) |
| Otteni, Martin | Influence of various factors on the susceptibility of the honey bee Apis mellifera L. to a viral infection. (Prof. Dr. E. Boehncke, Prof. Dr. N. Koeniger) |
| Scheer, Tobias | Investigations on the usability of processed salt slag from the secondary aluminum industry as recultivation material of a potash tailings pile. (Prof. Dr. H. Schmeisky, Prof. Dr. G. Spatz) |
| Tost, Johann | The behavior of adult bulls in a semi-naturally kept herd of cattle with an approximately natural age and sex structure - comparisons with the behavior of wild bovinae based on the literature. (Prof. Dr. D. W. Fölsch, Prof. Dr. G. Biedermann) |
| Von Schwerin, Catarina | Increasing the area productivity of oilseed rape by energetic utilization of the moist preserved whole plant. (Prof. Dr. K. Scheffer, Prof. Dr.-Ing. R. Krause) |
| Rahmann, Gerold | Biotope maintenance as a new function and service of animal husbandry. Studies in agroecology, Innsbruck. (Prof. Dr. Tawfik) |
| Köhler, Barbara | The influence of housing, feeding and lighting on biophoton emission (delayed luminescence) and conventional quality parameters of hen eggs (Prof. Dr. Fölsch) |
| König, Oswald | Success and performance assessment of the self-administration of German irrigation associations with regard to the formation of water user organizations in Brazil (Prof. Dr. Wolff) |
| Krämer, Martin | Pan'ki - a village in eastern Poland 1864-2000 - an attempt at a micro-historical study of the change in living and working conditions in an agricultural village (PD Dr. Troßbach) |
| Deininger, Andreas | Process control and information management in calf husbandry - state of knowledge and development possibilities (Prof. Dr. Krause) |
| Raubuch, Markus | The function of microbial biomass as an indicator of soil quality and a regulator of processes in soils of forest ecosystems (Prof. Dr. Jörgensen) |
| Eckelmann, Sabine | Biodiversity of the genus Ocimum L., especially the cultivars (Prof. Dr. Hammer) |
| Franke, Christian | Grassland on the lower Middle Elbe - vegetation ecology and agricultural usability (Prof. Dr. Spatz) |
| Gennrich, Nicolas | The Impact of Microenterprises of Poverty Reduction in Rural Areas: The Case of El-Quiche - Guatemala (Prof. Dr. Knerr) |
| Kleinkamp, Bernhard | Studies on arbuscular mycorrhiza (AM) in the Alentejo (Portugal) using pea mutants resistant to AM fungi as a control tool for field conditions (Prof. Dr. Jörgensen) |
| Sonnenberg, Hans | Mechanical processing of bedding material for animal husbandry to improve quality (Prof. Dr. Krause) |
| Strese, Eva Engela | The dynamics of biomass development of old and new winter wheat varieties (Triticum Aestivum L.) (Prof. Dr. Scheffer)an epidemiological approach (Prof. Dr. Fölsch) |
| Singer, Hartmut | Space-time dynamics of flora and vegetation on uranium mining dumps (Prof. Dr. Schmeisky) |
| Al-Karadsesh, Esmat A.W. | Potentials and development of precision irrigation technology (Prof. Dr. Krause) |
| Graß, Rüdiger | Direct and late sowing of silage maize - A new cultivation system to reduce environmental hazards and cultivation problems while optimizing yields (Prof. Dr. Scheffer) |
| Hassan, Elhussein Abdien | Biogas production from forage and sugar beets - Process Control and Optimization - Ecology and Economy (Prof. Dr. Krause) |
| Hofmann, Hubertus | Investigations on revegetation and succession on an anhydritic potash industry tailings pile in the Werra region (Prof. Dr. Schmeisky) |
| Mayer, Jochen | Root effects on the turnover of grain legume residues in soil (Prof. Dr. Heß) |
| Peratoner, Giovanni | Organic seed propagation of alpine species and their use in ecological restoration of ski runs in mountain regions (Prof. Dr. Spatz) |
| Schulte, Andreas | Development of a concept of utility value analysis for rural development projects (Prof. Dr. Bokermann) |
| Volk, Brigitte | Influence of genetic origin on fattening and slaughter performance, meat and fat quality as well as the fatty acid pattern of phospholipids of fattening pigs of both sexes at different feeding intensities (Prof. Dr. Biedermann) |
| Hörning, Bernhard | Livestock ethological studies on cubicle quality in dairy cattle housing systems with special consideration of an epidemiological approach (Prof. Dr. Fölsch) |
| Aphun, Astrid | The microbial colonization of the root surface and rhizosphere in its significance for material turnover in soils (Prof. Dr. Jörgensen) |
| Döring, Thomas | Straw mulch in organically grown potatoes. Evaluation and optimization for virus vector control (Prof. Dr. Finckh) |
| El Edghiri, Tarik | Investigation of suitable strategies for the biological treatment of urban household waste in emerging countries - case study Morocco - (Prof. Dr. Wiemer) |
| Gonzalez, Victor Manuel Suarez | Veterinary hygiene situation of ruminant husbandry with special consideration of endo- and ectoparasites in the ever-humid tropics of South America - illustrated by the example of the province of Sucumbios Ecuador (Prof. Dr. Tawfik) |
| Kalka, Edith | Food quality between taste and signs - a natural and cultural scientific analysis using the example of quark (Prof. Dr. Ploeger) |
| Nagieb, Maher | Material flows and plant genetic resources in two mountain oases of northern Oman (Prof. Dr. Bürkert) |
| Naing, Tin Aye Aye | Rice Production in Myanmar and Effects of Intensification on Crop Health (Prof. Dr. Finckh) |
| Neofotidis, Anastasios | Performance and robustness of the final breeding group from the crossbreeding program of the "Witzenhäuser Landschaftspflegeziege" (Prof. Dr. Biedermann) |
| Sodiq, Akhmad | Doe Productivity of Kacang and Peranakan Etawah Goats and Factors Affecting them in Indonesia (Prof. Dr. Tawfik) |
| Thein, Soe Soe | Effects of Soil Fertility Management Practices on Nutrient Avialability and Yield of Rice in Myanmar (Prof. Dr. Bürkert) |
| Zenner-Gellrich, Silvia | Consumer behavior in the demand for food from direct marketing - A behavioral analysis taking into account regional characteristics (Prof. Dr. Hamm) |
| Zermane, Nadjia | Potential of rhizobacteria to control parasitic weeds of the genus Orobanche (Prof. Dr. Bürkert) |
| Zimmermann, Ralph | Investigation of the effect of nitrogen and sulphur fertilization as well as the intensity of use on yield and constituents of butterbur (Petasites hybridus L.) (Prof. Dr. Scheffer) |
| Müller, Torsten | Turnover of plant residues in the soil - suggestions for modifying the soil-plant-atmosphere model DAISY (Prof. Dr. Jörgensen) |
| Adiwibowo, Soeryo | Dongi-dongi - Culmination of a Multi-dimensional Crises: A Political Ecology Perspective (Prof. Dr. Fremerey) |
| Al-Khanjari, Sulaiman | Exploration and estimation of morphological and genetic diversity of Omani wheat (Triticum spp.) landraces (Prof. Dr. Hammer) |
| Bouws-Beuermann, Heidi | Effects of strip intercropping on late blight severity, yields of potatoes (Solanum tuberosum Lindl.) and on population structure of P. infestans (Prof. Dr. Finckh) |
| Döring, Thomas | Straw mulch in organically grown potatoes. Evaluation and optimization for virus vector control (Prof. Dr. Finckh) |
| Engelking, Brigitte | Production and use of isotopically labeled (13C) microbial residues as a labile intermediate storage for nutrients (Prof. Dr. Jörgensen) |
| Khoshbakht, Korous | Agrobiodiversity of plant genetic resources in Savadkouh/Iran with emphasis on plant uses and socioeconomic aspects (Prof. Dr. Hammer) |
| Muhammad, Sher | Microbial use of organic substrates and maize growth, especially in saline and alkaline soils of the Pakistani Punjab (Prof. Dr. Jörgensen) |
| Niessing, Silvia | Greening measures on the residue dump of the potash industry of the Sigmundshall-Bokeloh plant (Prof. Dr. Schmeisky) |
| Sarwar, Ghulam | Use of compost for crop production in Pakistan (Prof. Dr. Schmeisky) |
| Siebert, Stefan | Analysis of arid agricultural systems using quantitative image analysis, modeling and geographical information systems (Prof. Dr. Bürkert) |
| Sunito, Satyawan | Continuation and Discontinuation of Local Institution in Community Based Natural Resource Management (Prof. Dr. Fremerey) |
| Trejo Lizama, Wilbert | Strategies to improve the use of limited nutrient resources in pig production in the tropics (Prof. Dr. Sundrum) |
| Almeida Neto, Jose Adolfo De | Production of biodiesel in Bahia, Brazil: Concept for the planning of a plant with consideration of ecological and socio-economic aspects (Prof. Dr.-Ing. Krause) |
| Braband, Dorothee | Nature indicators - Development of an instrument for recording nature conservation services in the agricultural sector (Prof. Dr. Heß) |
| Haitook, Theerachai | Study of Chicken Meat Production for Small-Scale Farmers in Northeast Thailand (Prof. Dr. Tawfik) |
| Hamann, Volker | The Impact of International Labor Migration on Regional Development: The Example of Zacatecas, Mexico (Prof. Dr. Knerr) |
| Kywe, Myo | Phosphorus response and amino acid composition of different green gram (Vigna rediata L.) cultivars and green gram rotation effects on maize (Zea mays L.) growth in Myanmar (Prof. Dr. Bürkert) |
| Kern, Michael | Structural analysis and evaluation of waste containing pollutants in household waste (Prof. Dr.-Ing. Wiemer) |
| Roose, Katja | Effect of crop residues of transgenic plants on the microbial C and N transformation in agricultural soils using the example of Bt maize (Prof. Dr. Jörgensen) |
| Teklu, Yifru | Genetic Erosion and Morphological and Molecular Markers Diversity in Ethiopian Tetraploid Wheat Landraces: Implications for Conserbation and Utilization (Prof. Dr. Hammer) |
| Terhoeven-Urselmans, Thomas | Usefulness of near-infrared spectroscopy to assess the composition and properties of soil, litter and growing Media (Prof. Dr. Ludwig) |
| Träbing, Claudia | Immunological reactivity as an indicator of stress in cow's milk (Prof. Dr. Sundrum) |
| Weih, Andreas | Strategies for the conservation of animal-based land use in peripheral regions for the maintenance and design of valuable cultural landscapes - perspectives of animal husbandry and grazing in the Rhön Biosphere Reserve (Prof. Dr. Tawfik) |
| Wichern, Florian | Estimating C and N rhizodeposition of peas and oats (Prof. Dr. Jörgensen) |
| Zalecka, Aneta Wanda | Development and validation of the rising pattern method for the differentiation of selected foods from different cultivation systems and processing methods (Prof. Dr. Ploeger) |
| Zaqqa, Nadim | Ecomomic Development and Export of Human Capital. A Contradiction? The economic impact of human capital migration on the economy of sending countries. A case study of Jordan (Prof. Dr. Knerr) |
| Benninger, Tina | Investigations into the health status and operational health care measures in organic pig farming (Prof. Dr. Sundrum) |
| Filger, Rüdiger | Litter and wet meadows in the Kempter Forest (Prof. Dr. Spatz) |
| Haase, Thorsten | Organic Potatoes for processing - agronomical measures and their impact on yield and quality (Prof. Dr. Heß) |
| Helfrich, Mirjam | Composition and stability of organic matter fractions in soils under different land use regimes (Prof. Dr. Ludwig) |
| Year, Volker | Innovation and power in the university organization - The establishment of the ecological paradigm at the Department of Agricultural Sciences at the University of Kassel from the perspective of organizational theory (Prof. Dr. Fremerey) |
| Khan, Izhar | Overseas Migration and Its Socio-Economics Impacts on the Families Left Behind in Pakistan (Prof. Dr. Knerr) |
| Lüdeling, Eike | Sustainability of mountain oases in Oman. Effects of agro-environmental changes on traditional cropping systems (Prof. Dr. Bürkert) |
| Mahmood, Khalid | Salinity/sodicity tolerance of Acacia ampliceps and identification of techniques useful to avoid early stage salt stress (Prof. Dr. Schmeisky) |
| Meelursarn, Aumaporn | Statistical evaluation of texture analysis from the biocrystallization method: effect of image parameters to differentiate organic and conventional products (Prof. Dr. Ploeger) |
| Rasul, Ghulam | Salinity-induced changes in the microbial use of sugarcane filter cake added to soil (Prof. Dr. Jörgensen) |
| Roose, Marco | Characterization of carrots and wheat from organic and conventional cultivation based on their carotenoid and polyphenol concentration (Prof Dr. Ploeger) |
| Szerencsits, Manfred | Foundations for the targeted expansion of organic farming for the purpose of water protection - Derivation of an ad hoc theory of conversion and discussion of the framework conditions for expansion (Prof. Dr. Heß) |
| Werner, Christine | Clinical control study comparing homeopathic and chemotherapeutic treatment methods in the treatment of acute catarrhal mastitis in cattle (Prof. Dr. Sundrum) |
| Werries, Andreas | Validation of HPLC methods for the determination of polyphenols and carotenoids in carrots, wheat and maize of different origins (Prof. Dr. Ploeger) |
| Zaka, Muhammad Anwar | Evolution of effective and economical reclamation technology for salt affected soils using brackish water (Prof. Dr. Schmeisky)edenen organ analyses of poisoned animals (Prof. Dr. Sundrum) |
| Kahl, DR, Johannes | Development, in-house validation and application of the holistic biocrystallization method for the differentiation of wheat, carrot and apple samples from different cultivation and processing steps (Prof. Dr. Ploeger) |
| Braunisch, Frank (Dr. Ing.) | Investigations on the construction of a functionally optimized recultivation layer on a highly basic ash landfill (Prof. Dr. H. Schmeisky) |
| Gedamu-Gobena, Ashenafi | Triticale Production in Ethiopia - Its Impacts on Food Security and Poverty Alleviation in the Amhara Region (Prof. Dr. B. Knerr) |
| Wanke, Diethild | On-farm management as a concept for in-situ conservation of the diversity of agricultural livestock breeds using the example of Hinterwälder cattle in the southern Black Forest (Prof. Dr. O. Poppinga) |
| Neth, Baromey | Ecotourism as a Tool for Sustainable Rural Community Development and Natural Resources Management in the Tonle Sap Biosphere Reserve (Prof. Dr. Knerr) |
| Gottardi, Sara | Areal and functional analysis of small-scale site-specific variations in grassland vegetation and productivity (Prof. Dr. M. Wachendorf) |
| Schulte-Geldermann, Elmar | Management approaches in organic potato and tomato production (Prof. Dr. J. Heß) |
| Weimer, Gero (rer.pol.) | Service Reporting in Outsourcing Controlling: An Empirical Analysis of the Outsourcing Service Manager DUV, Wiesbaden 2009 (Prof. Dr. Seuring-Stella) |
| Keppler, Christiane | Investigations of important influencing factors on the occurrence of feather pecking and cannibalism in undocked laying hens in floor and aviary housing with daylight with special consideration of the rearing phase (Prof. Dr. Knierim) |
| Michael, Dr., Kerstin | Organic matter, major ions and heavy metals in soils: availability, modeling and spectroscopic investigations (Prof. Dr. Ludwig) |
| Westendarp, Dr., Heiner | On the use of phytogenic additives in the nutrition of farm animals (Prof. Dr. Sundurm) |
| Gebauer, Dr., Jens | Studies on agro-silvo-pastoral ecosystems under (semi-) arid conditions in northern Oman and central Sudan (Prof. Dr. Bürkert) |
| Meiser, Dr., Heribert | Significance and development of chemical-toxicological detection methods for the diagnosis of animal poisoning, demonstrated by various organ analyses of poisoned animals (Prof. Dr. Sundrum) |
| Biewer, Sonja | Hyperspectral field measurements to determine dry matter yield and nutritive value of legume-grass swards (Prof. Dr. M. Wachendorf) |
| Aschemann-Witzel, Jessica | The influence of nutrition and health claims on the purchasing behavior of food with special consideration of the role of involvement (Prof. Dr. U. Hamm) |
| Richter, Klaus | Genetic structure in European populations of the earthworm Lumbricus terrestris (PD Dr. Potthoff) |
| Szulc, Malgorzata | Discrimination between organically and conventionally grown winter wheat by means of holistic and selected analytical methods (Prof. Dr. Ploeger) |
| Schenck zu Schweinsberg-Mickan, Mario | Importance of C and N rhizodeposition for the growth of microbial turnover of C and N in the rhizosphere depending on the distance to the root (Prof. Dr. Jörgensen) |
| Lange, Katja | Economic efficiency of sow husbandry in organic farming - optimization potential through group housing of farrowing sows and prophylactic animal health measures (Prof. Dr. Möller) |
| Hartkemeyer, Tobias | Expansion of the salutogenetic perspective as a basis for nutritional-ecological education (Prof. Dr. Ploeger) |
| Krug, Maike | Shifting cultivation and forest resources in Nagaland, N.-E. India (Prof. Dr. Bürkert) |
| Dickhöfer, Uta | Tradition and transformation - Steps towards a sustainable goat husbandry in mountain oases of Oman (Prof . Dr. Schlecht) |
| Müller, Evelyn | The ridge tillage system of Turiel - Investigations at the Hessian State Domain Frankenhausen The ridge tillage system of Turiel - Investigations at the Hessian State Domain Frankenhausen (Prof. Dr. Jörgensen) |
| Diogo, Rodrigue | Horizontal nutrient fluxes and production efficiencies in urban and peri-urban crop and livestock husbandry: the case of Niamey, Niger (Prof. Dr. Schlecht) |
| Anspach, Victor | Status quo, perspectives and economic potentials of biogas production on farms in organic farming (Prof. Dr. Möller) |
| Sohail, Muhammad | Ecophysiology of seed domancy and salt tolerance of Grewia tenax (Forssk.)Fiori. And Ziziphus spina-christi (L.) Willd. (PD Dr. Gebauer) |
| Gowaye,Salah | Egyptian wheat (Prof. Fr. Hammer) |
| Li, Zu-Ying | Organic farm-based tourism as an element of sustainable multifunctionality to support peripheral regions. Hualinien, Taiwan, as an example (Prof. Dr. Knerr) |
| Predotova, Martina | Vertical nutrient fluxes in urban vegetable production: The case of Niamey, Niger (Prof. Dr. Bürkert) |
| Urbatzka, Peer | Cultivability of normal-leaved winter peas as a winter catch crop and threshing crop in pure sowing and mixed cultivation under the conditions of organic farming (Prof. Dr. Heß) |
| Dr. Potthoff, Martin | Department of Soil Biology: Habilitation thesis: Habitat and Regulation - Organisms as Drivers of ecosystem functioning in the soil system |