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26280 Twelve Trees Lane, P |
| Project: Organic Certification | Work Order #: 83146 |
| Sample Date: Unknown |
Sample Received: 1/4/08 |
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Report on Analysis - Sample ID: #2 Normal - Lab No. 83146-01 Plant Nutrients
| Parameter | Method | Results | Units | Date Analyzed |
| Nitrate-Nitrogen | KCl | 1680 | mg/kg | 1/14/08 |
| Organic Matter | LOI | 62.1 | % by wt | 1/16/08 |
| Total Kjedahl Nitrogen |
SM4500 Norg | 3.00 | % by wt | 1/10/08 |
| pH | Saturated Paste | 8.46 | pH units | 1/25/08 |
| EC | Saturated Paste | 14.0 | dS/m | 1/11/08 |
| C/N Ratio | calculation | 12.0 | 1/24/08 | |
| Total Solids | SM 2540 G | 61.1 | % | 1/9/08 |
| E Coli | SM92223B |
7
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MPN/dry wt
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1/4/08
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DISCUSSION: This vermicompost contains well beyond the required nutrients for the average plant and as such should not be used as a straight potting mix. Going only by the levels of nitrogen (N), this product could be used at a 1:100 ratio of product to soil and still contain an adequate nitrogen level. In other words, it is more like a fertilizer than a potting mix. The soluble salts (EC) is very high in the straight product and would burn plants if they were placed in straight product, but dilution as stated above would reduce the EC by a factor of 100, bringing it to a low level. A stable compost has a C:N ratio of 7:1 to 20:1 depending on the starting material. A C:N ratio greater than 20:1 may actually use nitrogen from the surrounding soil to which it is applied. Thank you for the opportunity to help you prepare a ‘healthy’ product. Nancy Parrott, Chemist Steve Twiss, President Disclaimer: This report is issued solely for the person or company to whom it is addressed. This laboratory accepts responsibility only for the due performance of analysis according to industry accepted practice. Twiss Analytical Laboratories, Inc. or its employees are not responsible for consequential damages in any kind or in any amount. |