Liquid microorganisms supplement soil life. They do not replace missing nutrients. Our CannaSelection® MicroBio+ is a liquid microbial soil conditioner for organic soil, Living Soil and other biologically managed substrates. For soil and coco, we recommend 2–4 ml per litre of irrigation water.
Whether a microbial supplement suits your soil depends on the existing system. This guide explains what MicroBio+ contains, how it differs from fertiliser and mycorrhiza, and how to use it.
When can microbial supplementation make sense?
Organic soil already contains microorganisms. They break down organic material and participate in nutrient cycles. They need suitable living conditions. An additional culture can form part of soil care but cannot replace root-zone aeration, appropriate moisture or nutrients. Penn State Extension explains soil microorganisms.
Consider MicroBio+ when you want to add a liquid culture to organic soil or Living Soil through irrigation water. This may fit the preparation of a suitable soil mix, repotting or reactivating suitable stored soil. If substrate is waterlogged, compacted or overfertilised, address the cause first. Adding more microorganisms is not an automatic remedy.
A well-functioning Living Soil does not require supplementation just because another culture is available. Assess the need. A higher dose or longer species list alone does not establish a better yield.
Liquid culture, mycorrhiza or fertiliser?
- Liquid microorganisms: suitable when you want to apply a culture designed for irrigation water. Check the organisms, intended use, application rate and storage instructions.
- Mycorrhizal products: contain particular fungi that associate with compatible plant roots. Application and root contact requirements depend on the product. They are not interchangeable with every liquid microbial culture.
- Organic base fertilisers: provide nutrient sources. Our Living Soil Base serves this role in suitable soil, a different purpose from MicroBio+.
What does MicroBio+ contain?
Our liquid culture from Bavaria contains Lactobacillus plantarum, Lactobacillus casei, Rhodopseudomonas palustris and Saccharomyces cerevisiae. Measure it and add it directly to irrigation water. Home preparation or multiplication is not required.
MicroBio+ is intended for Living Soil, organic soil, suitable reused soil, biologically managed coco and bio-hydro. It is not an NPK fertiliser and has no declared mycorrhizal fungi. The culture supplements one component of the system. It neither provides complete nutrition nor promises a specific yield increase.
Using MicroBio+ in organic soil
- Shake the bottle thoroughly.
- Prepare the irrigation water and measure the required amount.
- For soil and coco, add 2–4 ml MicroBio+ per litre of water and stir well.
- Check pH after mixing. Assess other additives separately according to their instructions.
- Use the prepared mixture promptly and water according to actual need. Applying microorganisms is not a reason to water an already wet pot.
| Irrigation water | MicroBio+ at 2 ml/L | MicroBio+ at 4 ml/L |
|---|---|---|
| 1 litre | 2 ml | 4 ml |
| 5 litres | 10 ml | 20 ml |
| 10 litres | 20 ml | 40 ml |
A 250-ml bottle makes 62.5–125 litres of irrigation water at these rates. This describes neither soil volume nor the duration of a full grow. For reactivating stored soil, our rate is 2–5 ml per litre of water. Bio-hydro has a separate rate of 2 ml per 10 litres of nutrient solution. Do not transfer the soil rate to a reservoir.
Compatibility, pH and storage
Do not apply MicroBio+ simultaneously with hydrogen peroxide, fungicides or strongly antimicrobial agents. They may affect the living cultures. Suitable intervals depend on the specific agent and its instructions. Continuously sterile systems are incompatible with this use.
The liquid can lower the pH of the irrigation mixture. The extent depends partly on the water's buffering capacity. Check after mixing rather than increasing the amount arbitrarily to force a target pH. Our CalMag calculator and water check can help you examine unclear water values.
Store MicroBio+ in its tightly closed original bottle in a cool, dark place. Shelf life is one year from bottling when unopened and six months after opening.
Common questions
What if my existing soil lacks nutrients?
Prioritise base nutrition. Read how to prepare existing soil with Living Soil Base. MicroBio+ alone does not fill a nutrient gap.
Is MicroBio+ included in the starter kit?
Yes. The Organic Line starter kit contains 250 ml MicroBio+ together with Living Soil Base, Mineral Charge and TopDress Bloom. It is intended for 50 litres of existing substrate and contains no soil. Follow the starter-kit application guide.
Is a liquid always better than a powder?
No. The organisms, intended application and correct storage matter. MicroBio+'s liquid form allows dosing in millilitres. That does not establish general superiority over other product forms.
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