High organic-matter content
A formula centred on organic nitrogen and soil improvement, rather than simply providing a rapid dose of NPK.
GRANULAR ORGANIC FERTILISER FOR THE SOIL
Biosol® 1 kg
If you want a fertiliser that cares for the soil as well as the plant, Biosol® is an excellent choice. Its organically bound nitrogen is made available gradually through soil life, while the high organic-matter content contributes to more humus, better structure and more effective water retention. The granules are easy to apply in vegetable gardens, beds, lawns and pots, providing lasting nutrition and helping the soil work better.
6–8% NOrganically bound nitrogen
85%Organic matter
2–4 mmEasy-to-apply granules
1 kgCovers 5–12.5 m²
Gradual nutrition with meaningful benefits for the soil
Biosol® is made from organic fungal biomass. Most of its nutrients are bound within the organic matter and released through the activity of soil organisms, instead of being supplied all at once with the first watering.
- Organic nitrogen 6–8%: feeds plants gradually as it is made available by soil life.
- Water-soluble nitrogen up to 0.5%: most of the nitrogen is not present in an immediately soluble form.
- Phosphorus and potassium: contains 0.5% P₂O₅ and 0.3% K₂O for supplementary base nutrition.
- Fungal biomass: provides organic material that supports humus and soil activity.
Nutrition released gradually
The organically bound nitrogen is made available through soil microorganisms, providing a steadier supply than an immediately soluble fertiliser.
Better soil quality
The high organic-matter content contributes to humus formation, a more stable soil structure and improved water retention and movement.
Support for soil life
It supports the activity of soil organisms and encourages the development of mycorrhizal fungi that work together with plant roots.
When and where to use it
From the vegetable garden to the plant pot
It is particularly useful when you want organic nutrition with an emphasis on nitrogen while also improving soil that is poor, tired or low in organic matter.
Hungry vegetables
For tomatoes, peppers, potatoes, cucurbits and brassicas that need more nitrogen nutrition.
Flowers & herbs
For salads, herbs, flowering plants and ornamentals with lower feeding requirements.
Fruiting plants & lawns
For fruit, berries, vines and lawns, distributed evenly over the soil.
Pots & planters
For mixing into the growing medium when preparing or refreshing it.
How much to use — according to the plant's needs
There is no need for agricultural units or complicated calculations. Weigh the correct amount for the surface area or volume of growing medium, distribute it evenly and water after application.
- High requirements: 150–200 g/m²
- Lower requirements: 80–120 g/m²
- Pots: 4–6 g/L of growing medium
- Poor soil: +50 g/m²
- Water afterwards: yes
Before planting, use 150–200 g per square metre and work the granules lightly into the upper layer of soil.
For plants with lower requirements, use 80–120 g per square metre, starting at the lower rate.
When preparing or refreshing the growing medium, mix 4–6 g of product into each 1 litre of growing medium and distribute it thoroughly throughout.
In poor or tired soil, you can add 50 g/m² after approximately 10 weeks. Spread over the surface, work in lightly and water.
Do not add it to water or apply it over the plant
Biosol® is a granular soil fertiliser: do not dissolve it for root watering and do not spray it onto the leaves. Do not leave concentrated granules touching stems, the plant crown or young plants directly.
One kilogram for up to 12.5 m² of soil
Actual coverage depends on the plants' requirements. At the lower rate, the pack covers up to 12.5 m², while at the maximum rate for hungry plants it covers 5 m².
80 g/m²12.5 m²lower rate
120 g/m²≈ 8.3 m²per application
150 g/m²≈ 6.7 m²per application
200 g/m²5 m²maximum rate
Calculation basis: 1,000 g of product. For mixing into pots, 1 kg corresponds to approximately 167–250 L of growing medium at a rate of 4–6 g/L.
Pack, form & storage
Pack
1 kg for convenient home use
A practical quantity for the vegetable garden, beds, lawns, pots and refreshing old growing medium, without needing a large professional pack.
Form
2–4 mm granules
They are easy to distribute and are applied directly to the soil. Light incorporation and watering help begin the gradual availability of nutrients.
Storage
Keep the pack tightly closed and dry, protected from moisture. Avoid creating dust during use and wash your hands when finished.
Full analysis & technical information
The composition in one place
Biosol® is a slow-release organic nitrogen fertiliser with a high organic-matter content and small supplementary amounts of phosphorus and potassium.
Organic matter85%
Organic nitrogenN 6–8%
Water-soluble nitrogenN ≤ 0.5%
PhosphorusP₂O₅ 0.5%
PotassiumK₂O 0.3%
Raw materialDried mycelium
Form2–4 mm granules
ApplicationDirectly to soil
Frequently asked questions
Straightforward answers on dosage, pots, release time and correct application.
01What is Biosol® and why should I choose it?
It is a granular slow-release organic fertiliser made from fungal biomass. It primarily provides organic nitrogen that becomes available gradually and, thanks to its high organic-matter content, also supports humus, soil structure and soil life.
02How much should I use for tomatoes and other hungry vegetables?
Use 150–200 g per square metre before planting and work the granules lightly into the soil. In poor or tired soil, you can add 50 g/m² after approximately 10 weeks.
03What is the dose for flowers, herbs and pots?
For flowers, herbs, salads and other plants with lower requirements, use 80–120 g/m². For pots or planters, when preparing or refreshing the growing medium, mix 4–6 g into each 1 litre of growing medium.
04How do I apply it to plants that are already established?
Distribute the correct amount evenly around the plant without allowing the granules to touch the stem or plant crown. Work it very lightly into the upper layer of soil where practical and water thoroughly.
05Does it act immediately or gradually?
It acts gradually. Most of the nutrients are bound within the organic matter and become available through soil organisms. It therefore does not act like an immediately soluble fertiliser and should not be dissolved in water.
06How should it be stored?
Keep the pack tightly closed in a dry place and protected from moisture. Avoid creating dust during application and wash your hands when finished.