Compost contains a multitude of essential nutrients for plant growth, such as nitrogen (N), phosphorus (P) and potassium (K), and can also be a source of organic matter. However, recent concerns and criticisms have been directed toward composts with a high concentration of soluble salts. Soluble salts refer to the amount of soluble ions, such as calcium (Ca2+), potassium (K+), magnesium (Mg2+) and sodium (Na+), present in compost. Soluble salts are measured indirectly and cumulatively through electrical conductivity (EC).
US Composting Council5400 Grosvenor Lane
- Fax: 301-530-5072
- Phone: 301-897-2715
- Website: www.compostingcouncil.org
- Follow us:
The US Composting Council is a national organization dedicated to the development, expansion and promotion of the composting industry. Established in 1990, the USCC achieves this mission by supporting and performing compost-related research, promoting best management practices, establishing standards, educating professionals and the public about the benefits of composting and using finished compost. USCC members include compost producers, marketers, equipment manufacturers, product suppliers, academic institutions, public agencies, nonprofit groups and consulting/engineering firms.