Tackling agricultural phosphorus load by soil amendments
GYPREG

GYPREG Partner Meeting in Latvia Accelerated Collaboration

27 June 2025
 From 20–22 May 2025, GYPREG project partners from Finland, Sweden, Lithuania, and Poland met in Latvia. The meeting was hosted by the Latvian Institute of Aquatic Ecology (LHEI), which also organized visits to two companies: one producing gypsum as a main product, and the other as a by-product.
Technical details

 

The partner meeting, which took place in the city of Valmiera , focused on the project’s progress and future plans. During the workshop sessions, partners discussed laboratory experiments, upcoming field demonstrations, stakeholder engagement, and communication strategies. A key topic was the cost-effectiveness analysis of large-scale gypsum application in each participating country.

Workshop in process in Valmiera meeting

© LHEI, Zigmunds Kazanovskis

 Company Visits Spark Interest in Latvian Gypsum

On the first day, partners visited KNAUF Latvia’s production plant and a gypsum quarry, gaining valuable insights into local gypsum production. On the following day, the group visited VALMIERA GLASS, where gypsum is generated as an industrial by-product. Project partners were keen to explore whether these types of gypsum could be suitable for agricultural use to help reduce eutrophication in water bodies. The growing interest in Latvia’s gypsum resources added further momentum to future collaboration.

© LHEI, Zigmunds Kazanovskis

Expert Insights Shared at Riga Stakeholder Meeting

On the final day, a stakeholder event was held at the University of Latvia’s Nature House in Riga, in collaboration with the Interreg Europe project RIWET (Public-private governance of rivers and wetlands restoration and conservation as blue-green infrastructure). Invited experts presented research on the country’s soil diversity, gypsum deposit formation, and the role of springs as indicators of agricultural impact. Presentations also addressed phosphorus loss reduction from farmland and phosphorus recovery from wastewater and surface water.

Presentations at the stakeholder meeting in Riga

© LHEI, Zigmunds Kazanovskis

The event deepened participants’ understanding of gypsum’s potential in improving water quality and reducing eutrophication. Lively discussions highlighted shared challenges and national differences, reinforcing the value of cross-border knowledge exchange.

All GYPREG project partners expressed their satisfaction with the rich event program and the active involvement of all participants.

Group photo of the meeting participants

© Zigmunds Kazanovskis, LHEI

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