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Am 28. Juni 2023 ist Prof. Dr. Dr. h.c. Fritz Lenz, ehemaliger Direktor des Instituts für Obstbau und Gemüsebau der Landwirtschaftlichen Fakultät, im Alter von 91 Jahren unerwartet verstorben. Prof. Lenz hatte von 1976 bis 1997 den Lehrstuhl für Obstbau und Gemüsebau an der Universität Bonn inne.

Decision-making in agroecology is challenging due to system complexity and uncertainty - decision analysis methods can provide practical support by allowing stakeholders to compare outcomes, incorporate uncertainty, and evaluate the risks and benefits of interventions. Researchers from the University of Bonn suggest that decision analysis methods should be widely used in international and national government processes, funding mechanisms, and the private sector to support and scale agroecology interventions while considering risks and uncertainties…

Join us on Friday the 28th of April at 1300 for “The Future of Forests, Land Use, and Land Stewardship” a talk by Dr. Tony Simons, former Director General of World Agroforestry (ICRAF) and a renowned tropical land-use specialist.

I had the privilege to participate in the recent UN Water Conference, which took place from 22-24 March 2023. This was a momentous event, as it marked the first water conference in 46 years since the inaugural one in 1977.

Under the supervision of Prof. Eike Luedeling and Dr. Cory Whitney, Alexandra Krause won the GIL prize

Das DLR Rheinpfalz sucht zum nächstmöglichen Zeitpunkt eine/n Obstbauberater/in zur unbefristeten Anstellung am DLR Standort in Rheinbach (am Campus Klein-Altendorf). Weitere Informationen, Kontakte und Bewerbungsmöglichkeiten finden Sie direkt auf den Seiten des DLR

Temperate fruit trees such as apples, cherries or apricots lose their leaves and fall dormant in winter. To come back to life in spring, they must first experience cold temperatures and, after they have fulfilled their chilling requirements, they need warm conditions to develop leaves and flowers.

Von links nach rechts: Anton Milyaev, Thorsten Kraska, Jan Ellenberger, Michael Blanke, Simone Röhlen-Schmittgen (Hochschule Geisenheim), Nils Siefen. (Photo © MB, hortibonn) Vom 1. bis 3. März 2023 trafen sich über 160 Wissenschaftler aus allen gartenbaulichen Disziplinen zur 55.

The quantification of plant biomass and carbon in ecosystems is essential for determining the potential of interventions for climate change mitigation. Allometric aboveground biomass models for large trees exist but are lacking for small trees and shrubby vegetation.

Non-destructive laser scanning of fruit trees can potentially contribute to a precise and thus sustainable application of plant protection products to the target area by collecting tree-specific canopy data. A study by Nils Siefen from HortiBonn at the Kompetenzzentrum Obstbau Bodensee in Bavendorf demonstrates effects of scanner quality and tractor speed to characterise apple tree canopies using an alpha-shape algorithm. LiDAR data were investigated for multiple end use applications.