FAQ

The products 'Agrobiogel' and 'Retentis' are both biological hydrogels based on the lignin technology of AgroBiogel GmbH. The two brands are used in different target crops.

It increases water and nutrient storage capacity, soil organic matter and fertility. During dry periods or with reduced irrigation, the gel provides an homogeneous  water supply, reducing plant stress and ensuring healthy growth.

Universally applicable, suitable for all annual and perennial crops, in all types of soil, in pots and in beds. Also highly suitable for grave plantings. As Retentis® is a bio-product, it can be safely used with all crops and has no negative impact on the environment. It can also be used under various climatic conditions and in various soil types

We recommend a fresh application for every new planting. The product remains active in the soil for 3-5 years.

Retentis® can be used all year round. Stable even under extreme temperatures.

Yes, Retentis® can be mixed with fertilizers. By using Retentis®, fertilization can be reduced, but not completely replaced.

Retentis® improves soil structure, organic matter, permeability and nutrient availability for plants. Its long-term use can improve soil fertility and increase crop yields.

Retentis® remains active for up to 5 years in the soil. It slowly degrades into humus.

Retentis®  stores and slowly releases water to the plants thereby improving water use efficiency by plants. It also helps prevent water runoff and promotes better water distribution in the soil.

No, Retentis® is designed to release water slowly and prevent excessive moisture buildup. When used correctly, it does not cause root rot.

Retentis® has a neutral pH value and does not change the pH value of the soil. It is active in a wide soil pH range of 4 to 9.

Store in a cool, dark and dry place. It has a shelf life of at least 2 years in closed bags. Keep out of the reach of children and pets.

• In pots, 10g-20g (dry) per 1 liter of substrate

• New plantings of special crops (e.g. wine, fruit):100 – 200g per plant

• Vegetables: 250 – 500g/m²; worked into the ground (approx. 10cm deep)

• Substrate mixtures: 10g – 40g per liter of substrate

• Lawn and ornamental plants: 250 – 500 g/m²; worked into the ground (approx. 10cm)

Retentis® was developed specifically for use on new plantings. However, we are working on developing a solution that enables the use of Retentis® on already established plantings

Retentis® does not alter the composition of the water. It stores water and slowly releases it to the plants as needed.

Mix the Retentis® dry granulate with the substrate and incorporate it, approx. 5-10 cm below the surface close to the roots of plants or were the roots grow into. Direct application to the surface is not recommended. After potting the plants or incorporating Retentis®, the substrate must be watered sufficiently well to activate the gel.

The product safety data sheets are available in the following languages:

German:

Spanish:

English:

Italian:

French: