Browsing by Author "Schellberg, Jürgen"
Now showing items 1-12 of 12
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Analysis of Land Surface Dynamics in Ukraine Observed by Satellite Sensors
Ghazaryan, Gohar (2020-06-18)Land surface changes, induced by anthropogenic or climatic drivers, can dramatically impact ecosystem functioning. The growing amount of data from remote sensing and complementary data sources greatly supports the ... -
Detecting Plant Functional Traits of Grassland Vegetation Using Spectral Reflectance Measurements
Hollberg, Jens Lothar (2018-03-06)Changes in climate and an intensified agricultural use threaten grassland ecosystems in many places. To allow an efficient conservation of grassland vegetation communities, ecologists monitor variations in their plant ... -
Einfluss der Bewirtschaftungsintensität und Landschaftsstruktur auf die Diversität der Saltatoria und Hymenoptera (Bombus) von Mittelgebirgsgrünland
Boller, Jörn Christian (2018-11-27)Grünland ist ein prägendes Element der Agrarlandschaft und zentraler Baustein der multifunktionalen Landwirtschaft. Unter anderem leistet es einen herausragenden Beitrag zur Erhaltung der biologischen Vielfalt. Die Quantität ... -
Evaluation of dual purpose cowpea varieties for dry season feeding of ruminant animals
Anele, Uchenna Young (2011-03-29)Cowpea is of major importance to the livelihoods of millions of people in the tropics. Resource-poor small-holder farmers derive food, animal feed, cash and manure from the crop. Dual purpose cowpea has the potential to ... -
Evaluation of pangola grass as forage for ruminants
Tikam, Kanitta (2014-07-08)Pangola grass (Digitaria eriantha Steud., synonym D. decumbens) is a high quality tropical grass and widely grown as pastures. It is utilized extensively for grazing, hay or silage making. The purpose of this study was to ... -
Investigating the Potential of UAV-Based Low-Cost Camera Imagery for Measuring Biophysical Variables in Maize
Tewes, Andreas (2018-11-27)The potential for improved crop productivity is readily investigated in agronomic field experiments. Frequent measurements of biophysical crop variables are necessary to allow for confident statements on crop performance. ... -
Optimising nitrogen use in dairy farming: Evaluation of ruminal crude protein degradation and protein value of forages
Edmunds, Bronwyn Lee (2012-01-16)A major goal of modern dairy farming is to decrease nitrogen inputs and increase efficiency of nitrogen utilisation by the dairy cow in order to minimise environmental pollution and save on expensive nitrogen supplements. ... -
Ready for regrowth: A physiological and metabolic characterization of young sugar beets under temporary drought
Wedeking, Rita (2018-06-18)Although the sugar beet belongs to the rather drought relevant species, water availability plays a crucial role in terms of plant development and yield formation, hence water deficits can lead to adverse consequences. Aim ... -
Silage maize variety and heat stress: effects on nutritive value of maize silage and on digestion events and performance of ruminants
Gorniak, Tobias (2015-05-05)The present thesis addresses two topics; brown-midrib (Bm) silage maize and heat stress in ruminants. The first part of this thesis focused on an experimental Bm silage maize hybrid with regard to dry matter (DM) intake ... -
Suitability Analysis of Satellite Remote Sensing Methods to Map Agricultural Land Use Change after Zimbabwe's "Fast Track Land Reform Programme"
Hentze, Konrad Friedemann (2017-04-06)Forced evictions of white commercial farmers in the year 2000 took the Zimbabwean land reform programme to a new level. While international media covered the tragedies of white farmers, the collapse of a state economy and ... -
Untersuchungen zum Nährstoffkreislauf, zur Leistung des Grünlands und der Rinder bei Nährstoff-extensiver Mutterkuhhaltung und ausschließlicher Grünlandnutzung im Mittelgebirge
Lellmann, Arno; Kühbauch, Walter; Schellberg, Jürgen (2005)Seit Einführung der Milchquotenregelung im Jahre 1984 ist die Anzahl der Mutterkühe deutlich angestiegen. Mutterkuhhaltung gilt allgemein als ökologisch vorteilhafte Form der Rinderhaltung. Zum Nährstoffkreislauf und zu ... -
Zur tierökologischen Bedeutung der Elsbeere (Sorbus torminalis L. CRANTZ)
Werres, Jula Marie (2018-06-14)Mit der vorliegenden Dissertation soll das ökologische Beziehungsgeflecht der Elsbeere (Sorbus torminalis) erfasst werden, einer in Deutschland seltenen, in zerstreuten, kleinen Populationen vorkommenden Baumart ...