Stronger roots start with living biology, not just chemistry.
AgriBac develops live microbial inoculants — rhizobia, Trichoderma, free-living nitrogen fixers and phosphate solubilisers — built and produced for South African soils, crops and conditions.
Nature does the heavy lifting — we just help it work harder.
Every AgriBac product carries live, carefully selected microorganisms straight to the root zone, where they build the biological systems your crop relies on all season long.
Stronger root systems
Rapid colonisation and root branching give every plant a bigger, healthier foundation to explore soil, water and nutrients from day one.
Biological nitrogen & phosphorus
Rhizobia and free-living fixers convert atmospheric nitrogen into plant-available forms, while phosphate solubilisers unlock what's already bound in your soil.
Resilience under stress
Trichoderma protection and DP500 carrier technology keep beneficial biology alive on the seed and support plants through drought, heat and disease pressure.
Seven products. One biological foundation.
From legume inoculants to free-living nitrogen fixers, phosphate solubilisers and a silage inoculant — each product carries live biology developed and produced for South African conditions.

RhizoPulse Lucerne
Live Ensifer meliloti seed inoculant that builds effective, actively fixing nodules for stronger, longer-lasting lucerne stands.
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RhizoPulse Soybean
A live Bradyrhizobium-based inoculant that maximises nodulation and nitrogen fixation for stronger, higher-yielding soybean stands.
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RhizoPulse Beans
A Rhizobium tropici inoculant built for South African dry bean varieties — early, strong and effective nodulation.
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TrichoSol
A Trichoderma-based root protector that outcompetes soil pathogens while stimulating branching, uptake and stress resilience.
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NitroPulse
A free-living nitrogen-fixing inoculant for non-legume field crops — captures atmospheric nitrogen right at the root zone.
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PhosphoSol
Unlocks phosphorus already locked in your soil, converting it into plant-available forms right where roots need it most.
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EnsilaBac-L
A live bacterial silage inoculant that speeds fermentation, preserves nutrients and protects silage quality from pit to trough.
View productBuilt for the crops — and livestock — you already farm.
Every AgriBac product is matched to a real crop or role on the farm. Tap a tile to see the product behind it.
From root recognition to biological nitrogen, in five steps.
Every AgriBac rhizobial inoculant follows the same natural sequence — whether it's lucerne, soybeans or dry beans on the seed. Understanding the pathway is how we know our biology is actually working below ground.
- Root recognition — compatible bacteria and root hairs exchange chemical signals in the rhizosphere.
- Infection & nodule development — bacteria enter root tissue and specialised nodules form.
- Active nitrogen fixation — healthy nodules turn pink to red inside as they convert N₂ into plant-available nitrogen.
How a healthy nodule builds your yield
Root recognition
Roots and compatible bacteria signal each other in the rhizosphere.
Infection
Bacteria enter root hairs and travel toward the root cortex.
Nodule formation
Specialised nodules develop and mature to house the bacteria.
N₂ fixation
Inside active nodules, atmospheric nitrogen becomes plant-available.
Plant growth
Biological nitrogen fuels vigour, yield and long-term productivity.
Ready to put live biology on your seed this season?
Tell us your crop, hectares and planting window — Mark or André will help you choose the right product and application rate.