Browsing Fakultät für Agrarwissenschaften (inkl. GAUSS) by Title
Now showing items 867-886 of 888
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Wasserbewegung und Stofftransport in Pelosolen am Beispiel des Südniedersächsischen Röt (Oberer Buntsandstein)
(2002-02-25)Former studies of modeling water and nutrient balance sizes lead to the question, if ordinary model concepts are applicable in structured soils with high clay content (e.g. vertisols). These ... -
Water dynamics in the rhizosphere
(2016-03-10)The flow of water from soil to plant roots is affected by the narrow region of soil close to the roots, the so-called rhizosphere. The rhizosphere is influenced by mucilage, a polymeric gel exuded by roots that alters the ... -
Water users
(2002-03-08)The study, based on empirical data collected in Pakistan's Punjab, deals intensively with the prevailing contingencies which may support or hinder farmer's participation in Water Users' ... -
Weaning and castration in beef calves
(2011-10-17)The present work included three trials to investigate the effects of abrupt separation on male and female beef calves of different ages (Trial 1; n=80) and the impact of the timing of this ... -
Weed species diversity in cropping systems: Management and conservation strategies
(2010-05-26)Throughout the last decades, the intensification of farming practices accompanied by simplification of crop rotations, increased nitrogen fertilisation rates and weed control by highly ... -
Weeds in a changing environment
(2015-04-10)In the course of the past decades, various impacts of climate change have been recognized to pose a challenge to arable production systems. Among others, shifts in the species composition of weed communities, particularly ... -
Werte in umweltgeschichtlichen Texten
(2017-07-11)This thesis makes a contribution to clarifying the discussion about which values dominate texts from the field of environmental history. Therefor articles from the field of environmental history are examined regarding the ... -
Wetterrisiken in der landwirtschaftlichen Produktion
(2015-02-16)The purpose of this dissertation is, on the one hand, to analyze the extent to which weather index-based insurance can contribute to the stabilization of weather-related income fluctuations in agriculture. Weather index-based ... -
Willingness to pay for and property rights beliefs on river water quality improvements in Central Chile - an application of the Choice Experiment method
(2011-11-24)Although significant improvements have been achieved in past years, river water quality in Chile is still poor in some places. In particular, the negative effect of pulp mil wastewater on river water quality has ... -
Wine and innovation - Consumer acceptance of new grape varieties and wine packaging
(2018-12-03)„Wine and Innovation – Consumer Acceptance of New Grape Varieties and Wine Packaging“ Wine has deep roots in the European culture. Therefore, it is not surprising that around 60 percent of the world’s wine production comes ... -
X-ray crystallographic studies on two cysteine-rich anticarcinogenic microproteins
(2004-08-04)Two cysteine-rich, anticarcinogenic microproteins belonging to distinct protein classes were studied with X-ray crystallographic methods.The lima bean trypsin-chymotrypsin inhibitor (LBTI) ... -
Zertifizierungssysteme im Agribusiness - Bewertung aus Anwendersicht und internationale Entwicklungen
(2009-10-28)The dissertation consists of four different parts which focus on the overall topic of certification schemes in agribusiness. After an introduction the first part refers to the evaluation ... -
Zuchtplanerische Bewertung verschiedener Strategien für die nachhaltige Zucht ökologischer Milchrinder
(2007-08-31)The number of organic dairy farms in Germany increased considerably in the past years. This growth is affected predominantly by the increased demand of consumers for products of organic ... -
Zuckerrübenanbau unter veränderten Klimabedingungen - Trockenstresstoleranz und Stickstoffnutzungseffizienz von Zuckerrübengenotypen
(2022-05-18)Natural resources such as water and nitrogen are essential for plant growth. In the future, water will be limited more frequently due to climatic changes. Therefore, varieties are needed that can tolerate periods of drought ... -
Zukünftige Anforderungen an Produktinnovationen unter Berücksichtigung globaler Megatrends am Beispiel von biofortifizierten Obst- und Gemüseprodukten
(2023-03-15)Consumer behavior analysis is an essential part of the innovation process for the new product development. Due to the increasing complexity, high-level structures can be reviewed for evaluating the framework conditions ... -
Zukünftige regionale Wettbewerbsfähigkeit des Zuckerrübenanbaus und Entwicklungsperspektiven ausgewählter Rübenanbaubetriebe an Standorten Norddeutschlands und Osteuropas
(2009-03-18)The reform of the sugar market organisation enacted on November, 24th 2005 by the European ministers of agriculture reduces the extent of protectionism of the European sugar market. The ... -
Zum Einfluss unterschiedlicher Behandlungsverfahren und Zusatzstoffe auf ernährungsphysiologische Parameter und Leistung wachsender Broiler nach Verabreichung weizenbetonter Futtermischungen
(2001-11-13)A 2 x 2 x 4 factorial experimental design was used to investigate the main effects of grinding (hammer mill vs. roller mill), hydrothermal treatment (conditioning 70°C vs. expanding* 100°C) ... -
Zur Analyse der Überlebensfähigkeit von Unternehmen
(2000-12-13)This paper deals with the probability of enterprises to survive in a stochastic environment. It is often said that profit maximising is the best strategy for continuing the existence of an ... -
Zur Bedeutung der Bodenstruktur für den Ertrag von Zuckerrüben
(2009-02-04)In the beginning of the 1990th a large-scale field trial with permanent plots on arable farms in southern and eastern Germany was established to determine the effect of various tillage ...