Liquid Seaweed Biological Fertiliser
Nourish Your Crops for Nutrient-Rich Harvests
Packed with a full spectrum of naturally balanced minerals, microelements, and enzymes, Liquid Seaweed Biological Fertiliser not only acts as a biostimulant to activate soil microbes but also provides crops with a quick delivery of bioavailable organic nutrition.
Mineral Concentrate with Beneficial Microbes
Liquid Seaweed Biological Fertiliser, activated with beneficial microorganisms, can be applied at any time of the growing season to promote healthy root systems and produce highly nutritious crops.
Liquid Seaweed Fertiliser Benefits;
- Improves seed germination, strike quantity, and growth rate
- Boosts beneficial soil microbes
- Strengthens plants against disease and climatic stresses
- Accentuates taste, aroma, shelf-life and nutrient density
- Enhances protein production in protein-rich crops.
Beneficial for Seeds, Seedlings, Potted Plants, Vegetables, Orchards and Cropping
SONIC Liquid Seaweed Typical Analysis
| Nutrient | Concentration |
|---|---|
| Nitrogen | 0.05% |
| Phosphorus | 0.01% |
| Potassium | 0.32% |
| Sulphur | 0.07% |
| Calcium | 0.08% |
| Magnesium | 0.05% |
| Sodium | 0.07% |
| Iron | 50ppm |
| Manganese | 3.6ppm |
| Zinc | 2.7ppm |
| Copper | 1ppm |
| Cobalt | 0.1ppm |
| Boron | 5ppm |
| Molybdenum | 0.2ppm |
| Selenium | 0.05ppm |
SONIC Liquid Seaweed Fertiliser is derived from sustainably harvested Australian Durvillaea Potatorum (Bull Kelp). Cold processed with beneficial microbe cultures. No fillers, additives or preservatives.
Curious about the benefits SONIC Liquid Seaweed could have on your crops? Give us a call.
Product Price Guide
Choose your Supply Option
DIY PRODUCTION SYSTEMS
Starting from 360 Litres combined products
SONIC DIY Biofertiliser Production Systems include assisted setup and 1:1 hands-on training with our expert trainers.
✔ Eliminate major freight costs
✔ Reduce packaging costs and waste
✔ Access quality raw ingredients
✔ Lifetime support and system guidance
✔ Proven results for Aussie farmers
$1.00 – 1.20/L
ON-FARM PRODUCTION SERVICES
Starting from 2,160 Litres/yr combined products
SONIC On-Farm Production Service provides experienced operators to produce fresh products in regular batches, directly on your farm.
✔ Eliminate major freight costs
✔ Reduce packaging costs and waste
✔ Access quality raw ingredients
✔ Guaranteed quality outcomes
✔ Proven results for Aussie farmers
Starting at $1.65L
MADE-TO-ORDER PRODUCTS
Starting from 180 Litres per product
SONIC Made-to-Order Products are processed and supplied fresh for optimal results.
✔ Available in 20L and 1,000L containers
✔ Fast, reliable delivery Australia-wide
✔ 100% natural, high-quality ingredients
✔ Proudly Australian-made
*Allow up to 8-10 weeks for processing. Contact us for price and availability.
$2.30 – 2.35/L
Note: All prices are in AUD and are indicative only. GST and shipping costs are not included. The listed prices for the SONIC DIY System apply after the completion of training. Additional fees may apply. Click here to get a customised quote within 24 business hours.
Product Range
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See What Australian Farmers are Saying
COST SAVINGS
You really can see the difference, just driving up the road. We’re happy, and it has actually saved us a lot of money on extra fertilisers.
GREAT RESULTS
If I see something once and something that dramatic, I know it’s got to be doing good.
RESILIENCE
I think it’s doing a fantastic job! We have had the best year with the most tree stress.
More Than Just a Fertiliser
The Multiple Uses of SONIC Liquid Seaweed™ 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.
- 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.
Talk to us about the most Cost-Saving Supply option for your farm.
Get in touch to find out how we can help you save big while boosting your farm’s efficiency.
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 FERTILISER FACT
Many liquid 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, and delivers them to plants in a bio-available state. Read about Biological Fermentation Here.
Liquid SEAWEED BIOLOGICAL FERTILISER BENEFITS
Delivers Organic Minerals and Trace Elements
One key benefit of using Liquid Seaweed (Kelp) Fertiliser is its rich nutrient content. Seaweed is packed with essential minerals, including nitrogen, phosphorus, potassium, and trace elements such as iron, zinc, and magnesium. Because of the cold fermentation process, these essential nutrients are readily absorbed by plants, promoting robust root growth, improved flowering and fruiting, and overall plant vigor.
Contributes to Soil Structure
Liquid Seaweed Biological Fertiliser has the ability to promote better soil structure. When applied to the soil, under brown or green ground cover, the compounds present in seaweed help bind soil particles together, resulting in improved soil aggregation. The enhanced soil structure allows for better water infiltration and retention, reducing the risk of erosion and improving overall soil health.
Provides Natural Growth Hormones
When Liquid Seaweed Fertiliser is applied to plants, the natural growth hormones, such as auxins, cytokinins, and gibberellins, play a crucial role in regulating various physiological processes in plants, including cell division, elongation, and differentiation.
Enhances Taste, Colour and Nutritional Content of Food
One of the key advantages of using Liquid Seaweed Fertiliser is its impact on taste. It has been found that plants treated with Seaweed Biological Fertiliser have improved flavour profiles compared to those grown with chemical-based fertilisers. The natural compounds present in seaweed can enhance the overall taste and aroma of fruits, vegetables, and other edible crops.
In addition to enhancing taste, Liquid Seaweed Fertiliser also contributes to enhancing the colour and texture of food. The minerals and trace elements found in seaweed help plants develop vibrant colours, and improve the visual appeal of fruits and vegetables.
Moreover, Liquid Seaweed Fertiliser is known for its ability to enrich the nutritional content of food.
Seaweed Kelp is rich sources of essential minerals such as potassium, magnesium, calcium, iron, and iodine. When used as a liquid fertiliser for plants, these nutrients are absorbed by the crops and subsequently passed on to consumers when they consume these foods.
Improves Plant and Crop Resilience
Another key advantage of using Liquid Seaweed Biological Fertiliser is its ability to boost a plant’s immune system. Seaweed Kelp is rich in bioactive compounds such as polysaccharides, amino acids, and vitamins that stimulate the production of plant defense mechanisms. These compounds help plants to build stronger cell walls, activate defense genes, and produce antimicrobial substances that can fend off diseases and pests.
Liquid Seaweed Biological Fertiliser can also help in enhancing plant tolerance to climatic stresses such as drought, salinity, and extreme temperatures. Seaweed Kelp contains osmoprotectants that help plants retain water during dry periods or excessive salt exposure. Seaweed also contains antioxidants that scavenge harmful free radicals produced under stressful condition.
The organic nature of SONIC Liquid Seaweed Biological Fertiliser makes it an environmentally friendly choice for gardeners and farmers alike. Furthermore, it does not contain synthetic chemicals or harmful additives that can have negative impacts on soil health, the natural ecosystem, or water quality.
Click here to read ‘Key Benefits of Using Liquid Seaweed Biological Fertiliser for Plants’
Ready To Transform Your Soil?
Bulk Discounts for Aussie Farms
Biological Fertilisers FAQs
SONIC Liquid Fish and Seaweed Biofertilisers contain native microbial strains isolated from soils well-adapted to Australian conditions. These microbes enhance soil microbiology, support nutrient cycling, balance pH, and help remediate salt and chemical impacts. Fish and Seaweed Biofertilisers also deliver bioavailable organic minerals and trace elements essential for optimal crop growth.
Unlike NPK fertilisers, that just feed plants (synthetic) minerals, biological fertilisers work by delivering organic minerals and boosting the soil’s microbiome—improving nutrient cycling and plant immunity. This leads to stronger, healthier crops, without the potential of mineral imbalances or runoff that NPK fertilisers can cause.
| Feature | Natural Fertilisers (e.g., Fish Hydrolysate) | Synthetic Fertilisers (e.g., Urea) |
|---|---|---|
| Source | Derived from natural materials like fish byproducts, compost, or seaweed. | Manufactured from synthetic chemicals or mined minerals. |
| Nutrient Composition | Contains a broad spectrum of nutrients including NPK, amino acids, and trace minerals. | Primarily provides specific nutrients like NPK in concentrated forms. |
| Nutrient Release | Varies by application: Quick-release when used as a foliar spray (absorbed through leaves); slow-release when applied to soil, feeding plants over time via microbial activity. | Quick-release, providing immediate nutrients to plants but often lacking sustained availability. |
| Soil Health Impact | Enhances soil structure, increases microbial activity, and improves water retention. | Can degrade soil structure, reduce microbial life, and lead to long-term fertility decline. |
| Environmental Impact | Lower risk of runoff and pollution; supports sustainable practices. | Higher risk of leaching, runoff, and environmental harm. |
| Plant Growth | Supports balanced, resilient growth with improved flavour and nutrition; helps achieve higher nutrient density in crops. | May stimulate fast growth but can cause imbalances or fertiliser burn; does not support high nutrient density in plants. |
| Cost | Generally higher upfront cost; long-term savings through improved soil health and using DIY methods for production. | Lower cost; requires more frequent application, as land often becomes dependent on increasing amounts each year, raising costs over time. |
| Application Frequency | Initially applied more frequently to activate soil biology, then less often as natural ecosystems restore balance and fertility. | Frequent applications required to sustain growth; dependence increases over time, creating a perpetual input cycle. |
| Compatibility with Regenerative Practices | Highly compatible; supports biodiversity, carbon sequestration, and soil restoration. | Small amounts may offer a temporary boost, but over time, become unnecessary as regenerative practices and natural inputs rebuild the soil. |
Naturally fermented liquid products, begin working immediately by activating soil biology and delivering bio-available nutrition to plants. Results will vary depending on your crop, soil, and growing practices. For grazing pastures, in poor condition, improvements in soil biology may take a few years to fully develop. When seeding, you can often see faster seed germination and stronger early growth. Orchard and vegetable growers typically notice improved growth, flavour, nutrient-density, and a longer shelf life.
Liquid seaweed extracts are chemically-extracted or heat-extracted to concentrate specific minerals. These processes can result in the loss of some nutrients and trace elements. In contrast, Seaweed Biofertiliser, such as SONIC Liquid Seaweed, is cold fermented, preserving the full spectrum of minerals and trace elements in a bio-available form.
Read Article – Liquid Seaweed Fertiliser Comparison: Ferment Vs Extract
No. SONIC Liquid Fish and Seaweed Biofertiliser products are 100% natural and non-toxic, with no withholding period. Safe for livestock and the environment, they integrate easily into everyday farm routines.
SONIC Biofertiliser products have a mild, non-offensive odour—nothing like the strong odour of many emulsion fertilisers. This is because these products are naturally fermented using beneficial microbes, which help maintain balance during the processing, and preventing the liquid fish and seaweed from going rancid. When spraying, you may notice the scent initially, but it will dissipate quickly.
How to Reduce Farm Odours with Beneficial Microbes
We source leftover fish waste from numerous fish shops around Australia. These shops provide us with their ocean-caught fish after it has been processed for human consumption. Once the fish is collected, it is placed in large barrels or IBC containers. Once the fish is collected, it is placed in large barrels or IBC containers. Then the fish is cold processed (fermented) using microbial cultures, until the fish breaks down and becomes a rich liquid mineral concentrate that plants can easily absorb.
Turning Fish Waste into Premium Hydrolysate Fertiliser
Ready to Boost your Soil Health?
Call our friendly support team
0423 139 578
LIQUID SEAWEED BIOLOGICAL FERTILISER
Nourish Your Crops for Strong
Root Growth and Nutrient-Rich Harvests
Beneficial for seedlings, potted plants, mixed crops, orchards, and cropping
LIQUID FISH HYDROLYSATE FERTILISER
Supercharge your Soil Fertility
and Increase Fungal Biomass
Beneficial for cover crops, veg, fruit & nut trees, pasture and broad-acre crops
LIQUID SEAWEED LIVESTOCK SUPPLEMENT
Enhance your Livestock Digestion
for Optimal Feed Efficiency
Beneficial for horses, cattle, sheep, goats, alpacas, chickens and pets