Polygrain convinces in viticulture trial: less watering, more resistance

11. Apr 2025 | General, Viticulture

As part of an innovation project, we tested the effect of our water-retaining granulate on soil moisture in vineyards. The result: more moisture at depth, a more stable supply for the vines – over a period of 34 weeks.

The trial was carried out in collaboration with the Center for Energy Transition at Forschung Burgenland and the Hahnekamp-Sailer winery. Two neighboring rows of vines were compared – one untreated area and one with polygrain. Soil moisture data was continuously collected at six different depths (10-90 cm) – and the results speak for themselves.

Christoph Klikovits, head of the project, is convinced: “The measurements show that Polygrain significantly improves water availability. This could not only reduce water consumption, but also strengthen the resilience of vines to climate change in the long term .”

The results at a glance:

  • More moisture at depth: From a depth of 45 cm, the soil with Polygrain showed consistently higher moisture values than the untreated comparison area – a strong indication of the sustainable storage effect.
  • More stable daily patterns: The humidity values in the polygrain range remained significantly more constant during the day. This means less evaporation and a more even water supply.
  • Better water displacement: There were strong to very strong correlations between the lower soil layers (60-90 cm). This indicates a more efficient vertical displacement of water – a decisive advantage during longer dry periods.
The test provides clear data – and a clear message: Polygrain works. And not just in the laboratory, but exactly where it counts: in practice.

Polygrain exemplifies the path we want to take as a company: Making a measurable contribution to sustainability with innovative, biodegradable solutions – in agriculture and beyond,” says Enrique Nacif, Managing Director of Green Legacy.