Applications

One granule for every soil.

From raised bed to hectare: RETENTIS® is suitable for agriculture and forestry, landscaping, substrate production and private gardens. For all annual and perennial plants and all soil types.

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Six areas

Where will you use RETENTIS®?

Choose your area and find dosage, application and practical examples.

RETENTIS® Agrobiogel Wasserspeichergel für nachhaltige Gartenpflege: Bio-Granulat zur Bodenverbesserung und Wasserspeicherung, mit Verpackungen, Schale, Gartengeräten und Gießkanne auf Holztisch im Garten.

Home & garden

Beds, raised beds, containers and lawns.

Soil & substrate: 10–20 g/l
Perennials & ground cover: 200 g/m²

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Ein Mann steht in einem Garten mit vertikaler Landschaft die verzerrt ist

Landscaping

Plantings, tree pits and green spaces.

Planting pits: 10 kg/m³
Plantings: 200 g/m²

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Rasenversuch unter Wasserstress, Kontrolle und RETENTIS®: Vertrocknetes und grünes Gras im Vergleich, Nahaufnahme

Lawn

New lawns, overseeding, turf and existing lawns.

Seeding & turf: 100 g/m²
Existing lawn: 20–40 g/m²

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Abgestorbener Fichtenstamm in einem Nadelwald

Forestry & nurseries

Reforestation, container stock and root protection.

Reforestation: 50–100 g/seedling
Root dip gel: 0.5–0.7 kg per 10 l water

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Soils & substrates

Additive for growing media, including peat-reduced and peat-free.

Substrate mix: 10–20 g/l

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Ein Mann geht mit einem Kind durch ein Maisfeld

Agriculture

Vegetables, fruit, vines, specialty crops and arable farming.

Greenhouse vegetables: 250–500 g/m²
Arable crops: 20–30 kg/ha

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For professionals

Dosage at a glance

The recommended amounts for all applications on one page.

Application	Dosage	How to apply
Vineyards & orchards	100 g/plant	Mix homogeneously with planting substrate in the planting hole
Open-field vegetables	200 g/m²	Work into the soil to a depth of 10 cm
Greenhouse vegetables	250–500 g/m²	Work into the soil to a depth of 10 cm
Arable crops (e.g. cereals, rapeseed)	20–30 kg/ha	—
Plantings (perennials, ground cover)	200 g/m²	Work into the soil to a depth of 20 cm
Planting pits	10 kg/m³	Mix thoroughly with the excavated soil
Seeding	100 g/m²	Work into the soil to a depth of 10 cm
Turf	100 g/m²	Work into the soil to a depth of 10 cm
Existing lawn	20–40 g/m²	Mix with sand and apply during aeration
Reforestation	50–100 g/seedling	Small seedling 50 g, large 100 g
Tree nurseries	10–20 g/l substrate	Mix in evenly
Substrates	10–20 g/l substrate	Mix in evenly
Root dip gel	0.5–0.7 kg per 10 l water	Let swell for 10–15 minutes, dip roots for a few seconds

Do not spread on the surface; work in to a depth of 10–30 cm. RETENTIS® does not replace fertilizer: keep your standard fertilization; fertilizer can be mixed in at the same time.

Source: RETENTIS® technical data sheet (German), May 2025, V 1.2 (arable crops and existing lawn: AgroBiogel recommendation)