About Biological Fertiliser

SONIC Natural Farming Liquid Biological Fertilisers and Supplements for Livestock are cold fermented using 100% natural microorganism formulas, containing cultures of beneficial bacteria.

SONIC BOOM microbial Starter Cultures are carefully wild-harvested from over five unique locations in Australia.

Wild-harvesting, in various locations, allows us to capture a diverse range of indigenous microorganisms that are already adapted to thrive in certain soil types, climates, and environmental conditions.

Biological Soil Care Solutions

By utilising this method we can create diverse microbial communities that are naturally suited to the needs of soil, plants, and animals.

Producing biofertilisers, using cold fermentation methods, ensures that these living microbial communities remain intact, viable, and ready to enhance a resilient and productive ecosystem.

Beneficial soil microbes

SONIC BOOM Starter Cultures are introduced at the beginning of fermentation, to inoculate, activate, and keep the balance of beneficial biology throughout the fermentation process.

Cold fermentation converts compounds into soluble form, capturing all the minerals and trace elements in a naturally balanced, bio-available state, for easy uptake and utilisation by animals, the soil, roots, and leaves of your crops.

How Does Biofertiliser Benefit Soil?

Fermentation is a process that has been utilised for centuries in various industries including the production of biological fertiliser, a soil amendment with both microbial fertiliser, and mineral fertiliser effects.  Cold fermentation is the key to making biologically ‘alive’ fertilisers. 

By using biologically active products, produced fresh, we can harness the full potential of beneficial microorganisms, to achieve optimal results in plant growth, resilience, and agricultural productivity.

Biological Fertiliser and Natural Farming

Benefits of Boosting Soil Microbes

  • Enhanced nutrient cycling
  • Improved plant immunity
  • Contributes to soil structure
  • Fix atmospheric nitrogen
  • Enriched ecosystems
  • Supports seed germination
  • Increased nutrient brix levels

One of the many functions of Beneficial microorganisms is suppressing harmful pathogens and pests

See What Farmers are Saying about using SONIC Biological Fertilisers

“Since we started using SONIC Fertilisers, in 2018, we’ve reduced our running costs, and seen nothing but happy, healthy trees.”

Jake Britten


“I think it’s doing a fantastic job!  We have had the best year with the most tree stress.”

Geoff Bugden

Organic Pecan Farmer, WILSON RIVER PECANS

Why Use Biological Fertiliser?

A key factor in achieving nutrient dense crops is optimising the biology in your soil. By supporting diverse soil life, growers and farmers can unlock greater nutrient cycling and availability for plants, leading to more nutritious produce, grass and other forages.

Other key practices to boost soil biology include minimising tillage, increasing organic matter inputs, applying biological fertilisers, and avoiding synthetic fertilisers and pesticides.


Biological Fertiliser encourages earthworms, fungi, bacteria and other beneficial organisms to thrive, breaking down organic matter and making nutrients more accessible to plants

Healthy, biologically active soils don’t just improve nutrition – they also enhance drought resilience, water infiltration, and soil structure for better overall growing conditions. Investing in improving soil biology is an investment in the long-term productivity and sustainability of your crops and pastures.

Avocados and Biological Fertiliser

Liquid Seaweed


SONIC Liquid Seaweed for Soil, Crops and Livestock

100% Natural Solutions for Soil, Crops & Livestock


  • Seed Treatment – prepares seeds with microbes and natural growth hormones.
  • Soil Conditioner – helps increase aeration, water holding capacity, and nutrients.
  • Soil Mineraliser – offers naturally balanced organic minerals and microelements.
  • Foliar Spray – coats leaf in beneficial microbes, leaving no space for pathogens.
  • Compost Activator – speeds the break down of compost and organic matter.
  • Livestock Minerals – delivers balanced kelp nutrients and probiotics to optimise digestion.



Which regions do you service?

Product delivery and On-Farm Production Services are available to farmers Australia-wide.

How does your Liquid Seaweed and Fish Biological Fertiliser improve soil health compared to traditional fertilisers?

Our Liquid Seaweed and Fish Biological Fertiliser products are designed to significantly boost soil microbial activity and provide essential nutrients to soil microbes. By enriching the soil microbiome, our fertilisers enhance the natural processes that support plant health and soil fertility. This makes our products an excellent fit for regenerative farming practices such as low till, rotational grazing, and cover cropping. These practices aim to maintain and improve soil structure, reduce erosion, and enhance water retention, creating an environment where soil microbes can thrive. Together, our fertilisers and regenerative farming practices work synergistically to create a sustainable and productive farming ecosystem.

What specific benefits can I expect from using your Biofertilisers on my crops?

By using our Liquid Fish and Seaweed Biofertilisers on your crops, you can expect several specific benefits:

  1. Enhanced Resilience: Most farmers notice that their crops become more resilient, bouncing back more effectively from climatic stressors such as drought, heat, or heavy rains.
  2. Stronger Growth and Immunity: You’ll observe stronger growth and improved immunity in your plants, making them less susceptible to diseases and pests.
  3. Increased Nutritional Value: Our Biofertilisers help increase the brix levels, or the nutritional value, of your crops, leading to healthier and more nutritious produce.
  4. Improved Photosynthesis: Your plants will photosynthesise better, which means more efficient energy production and overall healthier plants.

Are your Biofertiliser products environmentally friendly, and do they support sustainable farming practices?

Yes, our Biofertiliser products are environmentally friendly and support sustainable farming practices. We use 100% Australian-sourced natural ingredients, including organic seaweed (kelp) and fish waste from processing that would otherwise end up in landfill. By utilizing these valuable resources, we contribute to reducing waste and promoting sustainability. Our seaweed is harvested from the shores, not the ocean, and dried naturally. It is NASA-certified organic, ensuring top-quality and eco-friendly standards. We do not add synthetic minerals, additives, or preservatives, and we supply our products fresh for maximum benefits. This approach aligns perfectly with sustainable farming practices, providing both environmental and agricultural advantages.

How long does it take to see results after applying your Liquid Seaweed and Fish Biofertilisers?

The timeframe for seeing results after applying our Liquid Seaweed and Fish Biofertilisers can vary depending on what you’re applying it to and the current condition of your soil. Many farmers notice a difference in their crops within 24 hours, observing initial signs of improved plant vitality. For pasture improvement, changes are often seen during seeding, with faster germination and early growth marked by stronger growth and enhanced immunity. Orchard farmers typically notice tastier yields and longer shelf life of their produce as the season progresses. Overall, the benefits of our biofertiliser are evident relatively quickly and continue to enhance crop health over time.

How does SONIC Natural Farming differ from other fertiliser suppliers?

SONIC Natural Farming stands apart by manufacturing products – made to order – and supplying direct to customer within days of production.  This ensures the delivery of fresher, more potent biologicals to farmers and growers. This freshness translates into live, active beneficial microbes ready to optimise farm performance, rather than risking diminished effectiveness due to uncertain storage conditions.

Do Biological Fertiliser products have a shelf life?

To ensure you get the best possible results from your SONIC Biological products, we advise following the recommended usage window of 3-6 months from the batch date. This will allow you to take full advantage of the products’ peak biological performance and get the most value from your investment.

Use and Storage Information (download).

Can expired Biofertiliser still be used, and what are the consequences?

While using expired or ‘off’ biological fertilisers may not necessarily benefit plants, it also does not pose a significant risk to them. A consequence of using expired biological fertiliser is experiencing a strong, foul odour.  Expired biological fertiliser can be safely discarded by burying in the ground or in a compost pile.

How fresh are the Biological products produced by your On-Farm System, and how does this affect their effectiveness?

The Biological products produced by our On-Farm System are exceptionally fresh, tailored to produce batches that match your needs precisely and when you need them. This approach ensures optimal effectiveness as biological products are most potent when used fresh, particularly for enhancing soil microbes. By producing on-farm, you receive the freshest possible Bioloical Fertilisers, maximising their impact on soil health and crop vitality.

Biological Fertiliser Production Services
Natural Biological Fertiliser


Biofertiliser Production and Training
SONIC On-Farm Biofertiliser Production Services
Probiotic Liquid Seaweed for Calves
Boost Seed Germination
Australia Made and Owned

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