Application Rates & Methods

Cold fermented Biological Fertilisers are a ‘living’ product that help to add naturally balanced minerals and beneficial microorganisms to the soil.

Synthetic fertilisers are inorganic compounds usually derived from by-products of the petroleum industry such as ammonium nitrate, ammonium phosphate, superphosphate, and potassium sulphate. Synthetic fertilisers do not support microbiological life in the soil and can kill beneficial soil microorganisms.

Because these products work in entirely different ways, it is inadvisable to mix natural and synthetic fertilisers. 


  • Spray in early morning or late evening 
  • Avoid applying during the heat of the day

Bio-Fertilisers are best applied in the cooler times of the day, when overcast or raining, particularly in the warmer months.  Applying the Fertilisers in the cooler times allows the living microbes to optimise their ability to survive, establish themselves and multiply in your soil.


Warning: Avoid spraying when temperatures climb over 27 degrees celsius, as even low rates can cause burning if applied under a hot sun.


    Filter and pre-mix the required amount of fertiliser in a separate container. This will make the fertiliser easier to mix with water in spray tank.
    Have pump running to get water agitating when adding pre-mixed fertiliser to spray tank. This will help further mix fertiliser to make a homogenous liquid.
    Remove or by-pass filters.

Other ways to apply Bio-Fertilisers includes watering can, spray pack, spray vat or through irrigation lines.

Note; Do not store in pre-mixed form.

SONIC DIY Natural Bio-Fertilisers


Liquid Seaweed Bio-Fertiliser
Vegetables, gardens, potted plants, seedling soak; 1:100 or 30-100ml per 10 litres
Cropping, orchards, broad acre soil drench; 1:20 – 1:50
Orchards, broad acre foliar spray; 1:100 – 1:200
Apply weekly or fortnightly.

Fish Bio-Fertiliser (Hydrolysate)
Cropping, orchards, broad acre soil drench; 1:50 – 1:100
Orchards, broad acre foliar spray; 1:200 – 1:400
Apply fortnightly or monthly.

Liquid Probiotic Mineral Supplements for Livestock  
Livestock drench; 1:20 monthly
Daily for livestock and pets; 1:200 – 1:500 

SONIC Regenerative Farming

Compost Activator
Activate dormant microbes by dissolving 30ml CA, 30ml Molasses in 1 litre non chlorinated water.  Sit at room temperature for 24-48 hours.  Apply to compost by diluting 30-100ml (of the extension) to 10 litres water.
Use within 3 months.

NOTE; Compost Activator (pre-extension) has a 1-3 year shelf life.  Store in cool conditions.


Bio-Fertilisers are a concentrated product.  Listed rates are approximates only because this product is so safe to use, however we advise not exceeding the recommended rates.

ALWAYS USE NON-CHLORINATED WATER.  Chlorine destroys microbes.  In cases of chlorinated water allow the water to sit for 24-48 hours, allowing the chlorine to dissipate.


Video download with step-by-step instructions and method for making Seaweed Bio-Fertiliser using
SONIC DIY Starter Kit

SONIC DIY Natural Bio-Fertilisers SUBSCRIBE TO WIN!
More about the Bio-Fertiliser Training Tutorial



SONIC Natural Farming

Training | Installations | Supplies

We Take the Guess Work out of Building a Bio-Fertiliser Making System on your Farm


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