Enhance Soil Fertility and Boost Crop Performance


Seaweed Biological Fertiliser Bulk Supply

Packed with a full spectrum of over 70 naturally balanced minerals, microelements, vitamins and enzymes, SONIC Liquid Seaweed Biofertiliser not only acts as a biostimulant, but provides crops with bio-available organic nutrition.

Liquid Seaweed
(Kelp) Biological Fertiliser

Chelated Mineral & Trace Element Concentrate

Activated with beneficial microorganisms,  this Liquid Kelp concentrate can be applied at any time of the growing season to promote vigorous root systems and produce highly nutritious crops or pasture.

  • Improves seed germination
  • Boosts beneficial soil microbes
  • Strengthens plants against environmental stresses
  • Accentuates taste, aroma and nutrient density
Liquid Seaweed Biological Fertiliser

Derived from Australian Durvillaea Potatorum (Bull Kelp), Beneficial Microbe Cultures, Sugars.  Cold processed to preserve seaweed’s natural occurring growth hormones and minerals.  No fillers, additives or preservatives.

Liquid Seaweed Biofertiliser

Choose your Supply Quantity:


*Allow up to 10 weeks for processing from your time of order.

Liquid Seaweed Storage

Biological Fertiliser Products are best used within 3-6 months to get the maximum benefits.  Do not store in diluted form.
Product Use and Storage Information (Download)


Many seaweed fertiliser products today are manufactured using an extraction process.  The extraction process generally uses an alkali extraction agent, such as potassium hydroxide.  This process inevitably denatures a lot of the original compounds found in seaweed, which are known to have many beneficial uses for plants.

For example, seaweed has a compound called betaine osmoregulators. When applied to plants, in its original form, these osmoregulators make plants a lot more resilient to drought stress.  It allows the plant cells to regulate water much better, and require less water, which enhances the plants’ tolerance to stress.  Betaine osmoregulators are lost using an alkali extraction method. 

Cold processing, or natural fermentation, retains all the original compounds of seaweed, in a bio-available state.  Read about Biological Fermentation Here.


Mineral Concentrate


Liquid Seaweed, Fish Hydrolysate, Liquid Seaweed for Livestock

For Soil, Crop & 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.
  • Bio-stimulant – chelated micronutrients readily available for plants and animals.
  • Foliar Spray – coats leaf in beneficial microbes, leaving no space for pathogens.
  • Compost Activator – provides beneficial microbe boost to speed the break down of compost.
  • Livestock Minerals – delivers balanced kelp nutrients and probiotics to optimise digestion.

Seed Treatment with Liquid Seaweed Biological Fertiliser

Beneficial microorganisms, contained in SONIC Liquid Seaweed Biological Fertiliser, coat or inoculate the seeds, and are carried with them into the ground, stimulating soil fertility.

When microorganisms are present, they improve the soil and give seedlings the health and immunity they need to start their growth.  Meanwhile, Seaweed is also high in organic phosphorus, which supports growth and vigor during early plant development.


Seaweed Biological Fertiliser Seed Treatment

Click on the Image to Read Article ‘How to Improve Seed Germination Rates with Biological Fertiliser’ 

Biological Fertiliser Production

Top 7 Benefits of using Seaweed in Regenerative Agriculture

Seaweed can improve soil quality, drought resistance, cold resistance, growth promotion, pest resistance, yield, and it’s 100% natural!

5 Ways to Build Soil Biology for Long Term Profitability

Building soil biology is a crucial aspect of sustainable agriculture and gardening practices. By encouraging the return of microbial life and...

Benefits of Fermentation for Biofertiliser Production

Fermentation is a process that has been utilised for centuries in various industries, including the production of biofertilisers....

Cultivate Resilient Orchards Using Liquid Fish Hydrolysate

Crop resilience is a common goal for farmers following long-term visions.  As the resilience grows, the less the farmer has to work, and the...

Discover How Microbes Diminish Odor in Biological Fertiliser

Most people, when they think of fertiliser, screw up their nose.  When we ask people if they want to smell our Seaweed Bio-Fertiliser sample, they are always slightly hesitant.  But… when they smell it, they always smile ..with relief!

How to Improve Animal Gut Health for Enhanced Feed Conversions

Animal feed conversion is the ratio of the amount of an animal feedstuff consumed divided by the weight gain of the animal. The efficiency of...

Turning Fish Waste into Premium Fish Hydrolysate Fertiliser

Tons of fish discards get thrown into landfill in Australia every year.  SONIC Natural Farming work to minimise fish waste by turning it into the best organic nitrogen fertiliser, Fish Hydrolysate.

Understanding Regenerative Agriculture: Benefits and Practices

Using natural farming methods, to grow food, has been around since man first 'mingled' with nature and required food to sustain himself, his...

8 Compelling Reasons to Choose SONIC On-Farm Production Services

Farmers stand to gain numerous benefits from utilising SONIC On-Farm Production Services to acess fresh Fish Hydrolysate and Liquid Seaweed...

How To Maximise Healthy Seed Germination

When it comes to seed germination, the treatment of seeds with biological fertilisers has shown promising results in terms of faster...

How to Increase Soil Fertility through Mixed-Species Planting

Multi-species planting and pasture cropping can provide a number of benefits to the soil, including improved soil structure, weed control,...

Maximize Livestock Nutrition with the Ultimate Nutrient-Dense Diet

The digestive system of ruminant animals is specially adapted to extract maximum nutrition from plants they have eaten.  The digestive system...

7 Reasons why Farmers are Shifting to Organic Nitrogen Fertilisers

As the world becomes increasingly aware of the importance of sustainability, many farmers are moving away from using chemical nitrogen and...

Why Your Soil Needs Biology More Than Minerals

Does adding minerals to the soil provide the same benefits to plants as building the soil's biology? Beneficial microorganisms in the soil have...

The Vital Role of the Ocean in Agriculture: 3 Key Contributions

Fish and sea plants, like seaweed, spend its entire life cycle, immersed in a mineral rich bath, absorbing all the nutrients it needs to live, grow, and reproduce.

Enhance Rumen Microbiota in Calves with Probiotic Support

In the world of animal agriculture, the health and well-being of livestock is of utmost importance. When it comes to calves, ensuring their...

Top 2 Most Cost Effective Pasture Cropping Tips

When it comes to pasture cropping, the general rule of thought is, if you have healthy soil, you you have healthy plants.  This is true,...

Livestock Digestive Function: The Key to Improving Feed Efficiency

Livestock digestive health plays a crucial role in optimising net profit per acre. One key aspect of livestock digestive health is feed...

Lacto-Fermentation Vs Vinegar Pickling

Lacto-fermentation and vinegar pickling are two popular methods of food preservation that have been used for centuries. While they both involve...

How To Grow Your Own Organic Garlic in Australia

To grow organic garlic in Australia requires a bit of planning. By following the right steps, however, you can cultivate a healthy crop of...

Key Benefits Of Using Liquid Seaweed Fertiliser for Plants

Liquid Seaweed Fertiliser has gained popularity among gardeners and farmers due to its numerous benefits for plants. Derived from mineral rich...

Reducing Mould and Algae Growth on Microgreens

The process of seed germination is crucial for successful plant growth. In this section, we will explore the impact of using Biological Seaweed...

Liquid Fertiliser vs Dry Fertiliser

Discover the pros and cons of dry fertiliser vs liquid fertiliser and learn which type is best suited for your growing needs.

How To Get Nutrient Density From Your Food

These days you don't have to be just a consumer to shop at the supermarket, you have to be a scientist.  How did we create such a dependence on...

The Why and How of Fermentative Composting

I had a dig in the compost today and was pleasantly surprised to find the most perfect soil example to share with you!

How Beneficial Soil Microbes are Linked to Gut Health

In this article we are unveiling the intriguing link between Soil Microbes and human gut health by the role beneficial soil microbes play in...

Top 5 Uses for Comfrey In The Garden And On The Farm

Comfrey, Symphytum officinale, a versatile plant known for its remarkable properties, probably has the widest range of uses in a permaculture...

Benefits of Interplanting Small Mixed Crops

Discover 5 benefits of interplanting small crops like leafy greens, herbs and vegetables in the same garden using open-pollinated seeds. 1. ...

Why is Nutrient Dense Food Important?

Nutrient dense food is not only more healthful for us, but it can also help to improve our agricultural systems.  We have witnessed the results...
Australian Owned


Discover the Power of Organic Seaweed and Biological
Fermentation for Producing Premium Fertiliser

Liquid Seaweed Kelp Minerals


Boost your Crop’s Vitality with Liquid Fish Protein Concentrate
infused with Beneficial Microbes

Liquid Fish Hydrolysate Fertiliser



Optimise your Animals’ Well-being with Organic Seaweed
Minerals Enriched with Probiotic Cultures

Liquid Seaweed Kelp Minerals