Azos (Nitrogen Fixing Microbes)

What is AZOS and how does it work?

AZOS is a nitrogen-fixing inoculant made from Azospirillum brasilense. It colonises the root zone and converts atmospheric nitrogen into a plant-available form. It also supports root development and early-stage growth but doesn't replace a complete fertiliser program. Most growers use it to reduce nitrogen input, not eliminate it.

When should I use AZOS in the grow cycle?

AZOS shines during propagation and veg, but can be used throughout the plant’s life. It supports leafy growth, transplant success, and ongoing root health. It's widely used on herbs, veg, fruiting crops, lawns, and indoor plants.

How do I apply AZOS for best results?

Apply directly into transplant holes, mix into potting media, or lightly scratch into the topsoil and water in. For cloning, use a pinch in cubes or soak plugs. Consistent root contact is key for colonisation.

Can I use AZOS in soil, coco, or hydroponics?

Yes—AZOS works across all media types. In hydro, ensure your system isn’t heavily sterilised and avoid stagnant, warm reservoirs. In soil or coco, it pairs well with good oxygenation and moderate moisture.

How much AZOS should I use, and how often?

Dose rates vary by method, but a common rhythm is weekly or with each transplant. Overdosing won’t burn plants, but it can waste product. Microbes need time to establish—results typically appear within 1–3 weeks.

Can I stop using nitrogen fertiliser if I use AZOS?

AZOS can reduce nitrogen needs, but it won’t fully replace your base nutrition—especially in high-demand crops. A good approach is to reduce nitrogen slightly and watch plant colour and vigour before making big changes.

Can I combine AZOS with other microbial products?

Yes—AZOS pairs well with mycorrhizae, Trichoderma, and other beneficials. Avoid using it alongside hydrogen peroxide, UV, or sterilising agents, as these can kill microbes. If you sterilise, re-inoculate after.

How should I store AZOS?

Keep it sealed, dry, and cool—out of direct sunlight. Avoid moisture getting into the container, and don’t scoop with wet tools. Like all living products, AZOS works best when stored properly and used fresh.

Does AZOS work in bad soil or stressful conditions?

It can help, but AZOS won’t fix compacted or poorly drained media. It performs best in oxygenated root zones with decent structure. It may support mild drought resilience, but good watering habits matter more.

What are common mistakes with AZOS?

Applying it too far from roots, expecting overnight results, running sterilisers, or overdosing nitrogen while using AZOS are all common errors. For best results, apply early, keep roots healthy, and reapply as needed.