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Organic Worm Castings

Premium Biological Fertiliser made naturally by our eco-army of compost worms.

Organic Worm Castings

Premium Biological Fertiliser made naturally by our eco-army of compost worms.

Organic Worm Castings

Premium Biological Fertiliser made naturally by our eco-army of compost worms.

Biological Analysis of Verasoil Worm Castings

In 2021 we submitted our Verasoil Worm Castings to two independent laboratories, SESL Australia and Microbiology Laboratories Australia, to test and report the nutritional and biological results. 

We’re proud to annouce that our worm castings excelled in these tests, from compost maturity to overall chemistry, beneficial microbiology, water retention and more.

Sample name: Verasoil Worm Castings B0005
Date sampled: 19/07/2021
Agent: Microbe Labs Australia
Authorised: Dr Ash Martin

Summary of AS4454-2012 Verasoil Worm Casting Results

Product classification

Verasoil

Customer indication

Vermicast

Maturity

Pasteurised product

Particle size

Soil conditioner

Biology

Pass/ Fail

Requirements passed (%)

Pathogens

Pass

100

Viable plant propagules

Pass

100

Physics

Pass/ Fail

Requirements passed (%)

Water related

Pass

100

Contaminants

Pass

100

Group

Biomass (mg/kg) Verasoil

Biomass (mg/kg) Guide

Total microorganisms

51.6

50

Total bacteria

15

15

Total fungi

36.5

33.8

Bacteria

 

 

Pseudomonads

1.273

1.000

Actinomycetes

2.048

1.000

Gram positive

9.917

4.000

Gram negative

5.115

11

Methane oxidisers

BDL*

0.500

Sulphur reducers

BDL*

< 0.005

True anaerobes

BDL*

< 0.005

Eukaryotes

 

 

Protoza

0.000

1.250

Mycorrhizal fungi

3.000

10.000

Useful indicators

Verasoil

Guide

Microbial diverity

27.8

80.0

Fungi: Bacteria

2.4

2.3

Bacterial Stress

0.8

< 0.5

Microbial Maturity

75.0

80.0

Disease suppression

100.0

80.0

Nutrients held in microbes (mg/kg)

 

 

Nitrogen (N)

3.566

3.450

Phosphorus (P)

1.547

1.500

Potassium (K)

0.516

0.500

Sulphur (S)

0.516

0.500

Calcium (Ca)

0.516

0.250

Magnesium (Mg)

0.516

0.250

Carbon (C)

23.691

22.688

Comments

Biomasses of most beneficial microbe groups were excellent. Protozoa often take time to appear in compost so their absence here is not a major concern. Arbuscular mycorrhizal fungi (VAM) require a living host plan, so the mycorrhizal fungi detected here are most likely ectomycorrhizas, the type that colonise many types of trees, and can be saprophytic. No True anaerobes were detected, which indicates sufficient aeration during the composting process. Microbial diversity was a little low. The Fungi to Bacteria ratio was in the typical range. Microbial maturity was very good, and the high Disease suppression indicator is OK. These results indicate that this compost is well balanced in terms of bacteria and fungi, and could make a useful biological addition to soils.

Physical contaminants

Verasoil

AS4454 Requirement

AS4454 Results

Glass, metal, rigid plastic > 2mm (% retained)

< 0.01

≤ 0.5

Pass

Light plastic >5mm (% retained)

< 0.01

≤ 0.05

Pass

Stones and clay lumps ≥ 5mm (% retained)

< 0.01

≤ 5

Pass