Wilhelm Claupein

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Due to the increasing demand for sustainable biofuels, microbial oils as feedstock for the transesterification into biodiesel have gained scientific and commercial interest. Also, microbial carotenoids have a considerable market potential as natural colorants. The carbon to nitrogen (C/N) ratio of the respective cultivation media is one of the most(More)
The use of sensor technologies is standard practice in the domain of precision farming. The variety of vendor-specific sensor systems, control units and processing software has led to increasing efforts in establishing interoperable sensor networks and standardized sensor data infrastructures. This study utilizes open source software and adapts the(More)
The study introduces a prototype multispectral camera system for aerial estimation of above-ground biomass and nitrogen (N) content in winter wheat (Triticum aestivum L.). The system is fully programmable and designed as a lightweight payload for unmanned aircraft systems (UAS). It is based on an industrial multi-sensor camera and a customizable image(More)
Linseed contains substantial amounts of desired ingredients, such as omega-3 fatty acids (α-linolenic acid) and antioxidants, as well as undesired ingredients such as cyanogenic glycosides and cadmium. This paper presents and discusses the abiotic factors which influence quality and yield of linseed seeds in organic cropping systems. In temperate climates,(More)
Over the last decade, political framework conditions in the energy sector provoked a strong focus on biogas production in Germany. In this context, a sufficient and secure regional biomass supply is needed in order to run biogas plants economically. It is important to estimate which biomass amounts can be produced and are available for bioenergy production(More)
Der seit einigen Jahren zunehmende Anbau von Energiepflanzen kann zu Veränderungen im Naturhaushalt, der biologischen Vielfalt und dem Landschaftsbild führen. Aufgrund einer längeren Bodenruhe und einem geringeren Einsatz an Pflanzenschutzmittel weisen mehrjährige Kulturen in Form von Kurzumtriebsplantagen (KUP) Vorteile auf, die sich positiv auf die(More)
Intercropping has a strong potential to counteract the severe degradation of arable land in the North China Plain (NCP). However, a rapid decline of intercropping can be observed in the last decades. The present paper investigates the reason for this development and suggests solutions on how to adjust intercropping systems to fit modern agriculture.(More)
Mixed cropping of lentil (Lens culinaris) with five spring-sown companion crops: naked barley (Hordeum vulgare), wheat (Triticum aestivum), oats (Avena sativa), linseed (Linum usitatissimum) and buckwheat (Fagopyrum esculentum) was compared with monocropping at the organic research station Kleinhohenheim, University of Hohenheim, Germany, in 2009 and 2010.(More)
IntroDuCtIon Intercropping, defined as growing two or more crops simultaneously on the same field AbStrACt Interspecific competition between species influences their individual growth and performance. Neighborhood effects become especially important in intercropping systems, and modeling approaches could be a useful tool to simulate plant growth under(More)