News from the Department of General and Organic Viticulture

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Retrospective: ATW General Assembly 2025

Lecture by Dr. Matthias Schmitt (Department of Enology). Photo: Christoph Schüßler

On November 20–21, 2025, the 73rd general assembly of the Ausschuss für Technik im Weinbau (ATW; Committee for Technology in Viticulture) took place at Hochschule Geisenheim University. Around 45 participants from the worlds of academia, practice, and consulting were in attendance at the newest event in this long-standing series, which once again offered a top-class program of lectures and activities.

Dr. Jürgen Dietrich, first chair of the ATW, took on the role of formally welcoming guests and moderating the event. The focus of the first day was on current technological advances and practice-relevant research results in viticulture, with expert lectures covering topics such as hot water treatments of rooted vine seedlings, potential energy savings in the process of applying pesticides, and the future challenges of improving water retention in vineyards. Other topics included the adjustment of new canopy-based calculations for pesticide amounts, the improvement of harvest quality by using a compressed air defoliator directly before harvest, as well as the impact of grape temperature on the extraction of components in white wine production. Innovative fermentation salts, new approaches in the production of sparkling wines, and the influence of different defoliation intensities on grape quality and plant physiology were also discussed in depth. 

The first day of the event was concluded with a professional wine tasting organized by Hochschule Geisenheim University, moderated by Professor Rainer Jung (Deputy Head of the Department of Enology) and Professor Manfred Stoll (Head of the Department of General and Organic Viticulture).

The formal general assembly of the ATW took place the following day. To conclude the event, attendees headed to the traditional Schloss Johannisberg vineyard, where current topics in the world of viticulture were discussed in depth once more. The 73rd ATW general assembly once again demonstrated the importance of a close exchange of thoughts, experiences, and ideas between academics, practitioners, and consultants to the continued development of modern technology in viticulture. 

Categories: MyHGU-App, Mein-Netzwerk, Veranstaltungen, FORSCHUNG, Oenologie, Allgemeiner und ökologischer Weinbau, Nachrichten

Images

Professional wine tasting in the university's 'UniKeller'. Photo: Christoph Schüßler