After the meeting was canceled in 2020 due to corona, the members were able to meet again on November 12th/13th for the annual exchange.
This time we visited the golf course of the Chiemsee Golf Club in Prien. The course maintained by Philipp Eins was in excellent condition and playability. The greens and tees appeared healthy and, despite a wide variety of structures, of a homogeneous quality with a very good mix of Festuca species and Agrostis stolinifera. Poa annua only occurs in small proportions. Snow mold was not present - without treatment.

On Saturday there was a detailed agenda to be worked through. In addition to organizational matters and travel reports, the following main topics of discussion included:

• How can we succeed in permanently attracting more greenkeepers?
• How can we work with Mehlich3 extraction and MLSN in the future, especially with Festuca stocks?
• What amounts of nutrients does STOMATA recommend for golf turf care?

The practical experience of the participants was required when it came to the topic of nitrogen requirements for golf turf grasses. Discussions included replenishment from organic matter in the soil, atmospheric inputs, conversion problems, volume of clippings, base layers, rounds of play, and age of the greens. In the end, we were able to agree very quickly on the values given in the table.

*with very high usage intensity and in the sowing year

The quantities are based on the Stomata Greenkeepers' many years of experience. Organic, preferably plant-based fertilizers are preferred; fertilization must not trigger any surge growth. Poa annua promotes long-term exceedance of the recommended values. With N fertilizer applications of around 30 g/m² a and frequent scarification, a pure Poa population will develop in a few years.

Who is STOMATA? The Sustainable Greenkeeping Germany working group consists of practicing greenkeepers and lawn experts.
The aim is ecologically and economically sensible and qualified lawn care according to the principles of disturbance theory, current research results and the requirements of advancing climate change.
The working group's website is currently being revised and will be available again from February 2022.