Third Party Laboratory Test Results

 

Soil Food Lab

Our Compost is tested by the Oregon branch of the Soil Food Web - a private, third party research laboratory.

Panels include tests for:

  • Total Bacteria (TB)
  • Total Fungi (TF)
  • Active Bacteria (AB)
  • Active Fungi (AF)
  • Protozoa (Prots)
  • Nematodes (Nem)
  • and E. Coli

We had out Compost tested at the end of January, in preparation for spring product delivery. The lab told us, "this is not a good time to test Compost".. The Compost is wet (meaning that a dried sample will be smaller, and thus have less beneficial organisms), and there is a higher propensity of micro-organism dormancy (fewer active beneficial organisms).

That said, upon initial inspection of our Compost, Scientist Tiffany Bolman said, "This is some of the best Compost we have seen". The test results speak volumes.

   
How the test works
We bring a 1 quart sample of Compost to the lab in Corvallis. From this sample, scientists randomly pull a 1 gram test sample (roughly the size of a sugar cube), then they dry it, and test for presence and quantity of the aforementioned organisms. Here's what they found.
 
TEST RESULT RANGE

MEANING

Dry Weight .30 g .45g to .85g Sample was very wet. Once dried, it was smaller than expected range, and thus one would expect to have less microorganism presence and activity
AB 166 15 - 25 Well Above Expected Range
TB 2,426 100 - 3,000 In Upper Range
AF 49.4 15 - 25 Well Above Expected Range
TF 7094 100 - 300 Well Above Expected Range
Flagellates 2,733,220 10,000 Well Above Expected Range (Protozoa)
Amoebae 1,513,490 10,000 Well Above Expected Range (Protozoa)
Ciliates 1,889 50 - 100 Well Above Expected Range (Protozoa)
Nematodes 137 20 - 30 Well Above Expected Range

Lab Comments:

Bacterial and Fungal Activity above expected range. Bacterial and Fungal Biomass Increases with presence of nutrients.

Good Balance of Disease Suppressive and normal soil Fungi

Great Protozoa diversity, good for soil functioning in all conditions.

   
Need more data? Click HERE to view the lab report.

 

Tel:  541-946-3719      Fax:  888-201-9159
Did you know...


The fungi and bacteria that break down the woody tissues and cellulose of intact leaves, stems and dead roots of plants decompose organic matter that builds humus and returns nutrient back to the soil.

Did you know...

When nematodes like this eat bacteria they digest the protein and convert it to nitrogen which is excreted as a body waste product back into the soil in a form that becomes available to plants. This function of nutrient recycling is how the soil food web can help turf stay green or help produce food crops with less need for chemical fertilizers.

Did you know...

Soil protozoa feed on bacteria in soil keeping bacterial communities growing and releasing nitrogen in plant available forms around roots.

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Master Composter  Soil Food Web Oregon