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Microbial Counts for Compost Tea

The following chart shows the desired ranges of bacterial and fungal biomass, nematodes and protozoa which should be found in a well-designed brew recipe. By utilizing plant meals (i.e. oatmeal, cottonseed meal etc.), feed hay, liquid humates and fish products you can supply enough nutrients to maintain beneficial microbial populations. Having your tea analyzed will insure a properly balanced tea. The lab at Soil Foodweb Inc. will give instructions on how to send a tea sample and will e-mail you the analysis along with suggestions for improvement. Contact the lab at: www.soilfoodwebny@aol.com

Active Bacteria 10-150 *
Total Bacteria 150-3000
Active Fungi 2-10
Total Fungi 2-20
Protozoa Ciliates 20-50
Amoebae 1000+
Flagellates 1000+
Total Nematodes 2-10

* Population of microbes/ML of tea


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footer:  Cary Institute of Ecosystem Studies, Millbrook, New York   (845) 677-5343