Restore What the Soil Has Lost

When can the Volcanic Mineral Complex be applied?

It can be applied during most of the year whenever soil conditions allow incorporation or surface application.
Applications can be made in spring, summer or autumn, and under suitable conditions during winter where the soil is neither frozen nor snow-covered.
Because volcanic minerals weather gradually, the product is not restricted to the narrow application windows typical of many conventional fertilizers.

How should it be applied?

The application method depends on the intended use:
New lawns — distribute evenly over the surface and incorporate into the upper soil layer.
Flower beds and planting areas — mix into the soil before planting or gently incorporate around established plants.
Trees and shrubs — apply within the root zone or beneath the canopy and lightly incorporate into the soil or cover with mulch.
Established lawns — broadcast evenly over the surface, preferably after aeration or before rainfall or irrigation.
Planting pits — thoroughly mix with the backfill soil

Can it be used together with mineral and organic fertilizers?

Yes.
The Volcanic Mineral Complex is a soil conditioner rather than a substitute for fertilizers.
It can be integrated into mineral, organic and organo-mineral nutrient-management programmes. Its role is to improve the soil environment and complement existing fertility-management practices.

Can it help optimize fertilizer use?

Potentially, particularly as part of a long-term soil-management programme.
Volcanic mineral materials can contribute to nutrient retention and gradual nutrient cycling within the soil system. Depending on soil type, crop and management practices, this may create opportunities to improve overall nutrient-use efficiency.
We do not recommend automatically reducing fertilizer rates during the first season. Any optimization of the fertilization programme should be based on soil analysis, crop requirements and field performance.

Can it help improve water-use efficiency?

The volcanic tuff component contributes to the physical properties of the soil matrix associated with moisture retention.
This can be particularly relevant in light-textured and sandy soils, where improved soil water retention may help reduce rapid drying and support plant resilience during short periods of water deficit.

Where can the product be used?

The Volcanic Mineral Complex can be integrated into:
Urban greening
Parks and public spaces
Lawns
Ornamental trees and shrubs
Berry production
Orchards
Vineyards
Greenhouses
Nurseries
Sports fields
Landscape projects
Land reclamation and degraded-soil restoration.

When can results be expected?

Changes in soil and plant performance may become apparent during the first growing season, depending on soil conditions, vegetation type, application rate and management practices.
The product works through gradual mineral weathering and soil–mineral interactions, meaning that its contribution to the soil mineral system develops progressively over time.

Does the product need to be applied every year?

Not necessarily.
Unlike readily soluble fertilizers designed primarily to supply nutrients during a growing season, volcanic mineral materials weather gradually and remain part of the soil mineral matrix.
The appropriate reapplication interval depends on:
soil type and condition;intensity of land use;biomass removal;crop or vegetation system;soil-management objectives.
For many applications, periodic maintenance treatments may be more appropriate than annual application.

Can it be over-applied?

The complex does not rely on high concentrations of readily soluble salts and therefore behaves differently from conventional soluble fertilizers.
Nevertheless, excessive application provides little agronomic or economic benefit. Recommended application rates should be followed and adjusted according to soil conditions and project objectives.

What is the recommended application rate?

Application rates depend on soil type, level of degradation, crop or vegetation type and the intended objective.
As a general guideline:
Maintenance application — 0.2–0.5 kg/m²
Depleted-soil restoration — 0.5–2.0 kg/m²
Planting pits — 0.5–2.0 kg per planting pit, depending on size
Lawns and landscaping — typically around 0.5 kg/m²
For professional agricultural, landscaping and restoration projects, we recommend determining application rates on a site-specific basis.

Why shouldn’t the Volcanic Mineral Complex be compared directly with conventional mineral fertilizers?

Because they perform different functions.
Conventional fertilizers primarily provide readily available nutrients to meet plant demand.
The GEODAR Volcanic Mineral Complex functions as a long-term soil conditioner and remineralization input, gradually contributing to the soil’s mineral matrix and supporting the environment in which roots, soil biology, nutrients and water interact.
The two approaches are therefore complementary rather than competing.

Are there any restrictions on use?

The complex is compatible with a broad range of crops and landscaping applications.
For acid-loving plants, including blueberries, rhododendrons, azaleas and heathers, application should be based on soil pH assessment and an appropriate site-specific rate.