View Compost Quality Standards
Pictures. The standards set out three categories of compost quality (aa, a and b). Appropriate ranges for specific characteristics depend on the type of application.
Frontiers Characterization Of Composted Organic Amendments For Agricultural Use Sustainable Food Systems from www.frontiersin.org
Compost quality standards developed by composting industry • u.s. Bulk compost of type b shall have a sharp foreign matter content less than or equal to 3 pieces of sharp foreign matter per 500 ml, and the maximum dimension of the sharp foreign matter shall be 12.5 mm. In order for compost to be used as a constituent in growing media, additional quality criteria have been suggested.
Compost manufactured in accordance with this guideline will not be certified separately by ecn;
The optimal ranges for growing media (compost amended soil) is 0.5 to 4.5 millimho per centimeter. To prevent pathogen contamination of crops, uncomposted animal manure carries a days to harvest application restriction. Always remember that quality is not just about how a compost looks or how much it costs. They covered all types of compost, including urban residuals.
