Agrobiogel | TERRASAFE

Agrobiogel Lignin-based hydrogel

retentis

Retentis, by Agrobiogel, is a unique and innovative solution to increase water holding capacity, organic matter and soil fertility. It serves three main functions:

Visit Agrobiogel

E

Protects plants from drought

Retentis gel is made from 100% wood, which absorbs and stores water from rain or irrigation and slowly releases it back to the plants during dry periods

E

Reduces irrigation needs by up to 40%

E

Conversion into productive soils

As a natural humus precursor, Retentis® can transform infertile soils such as sand into productive cropland.

This innovation is being tested in Cyprus, Romania, Spain and Tunisia

Comparison between lawn treated with Retentis gel (left and right boxes) vs not treated (middle box). These boxes had not been watered in 10 days, with the gel-treated boxes remaining healthy and continuing to grow

Using Retentis agrobiogel can improve soil structure – the soil on the right is treated and shows less compaction

Here, Retentis was used in the right pot. Its application resulted in significantly more fine roots being formed when compared to the untreated pot (left).

View some of our latest news!

Transforming Food Systems to Reverse Land Degradation and Combat Desertification

Sep 1, 2025

A new Nature paper, co-authored by Professor Lindsay Stringer of TERRASAFE, shows that transforming global food systems could play a pivotal role in bending the curve of land degradation - a major driver of desertification in dryland regions. The study outlines a...