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Mushroom Farms

MH Mushroom Mardi Gras • SC Division of Agriculture • SC Farm Bureau 

The recipe for mushroom compost varies from company to company, but can include composted wheat or rye straw, peat moss, used horse bedding straw, horse manure or chicken manure, cottonseed or canola meal, grape crushings from wineries, soybean meal, potash, gypsum, urea, ammonium nitrate and lime. The compost ingredients are weighed out, then mixed in.

Huge piles of mushroom compost sit for about 30 days and do what compost does - heat up. The straw provides the structure and some food for bacteria, and the urea, cottonseed or canola meal and manure provide most of the nutrients. The bacteria multiply, forcing the temperature inside the pile up to more than 160 degrees, killing any weed seeds or pathogens that might have been present in the straw or animal wastes. The result is mushroom compost, ready to grow a crop of commercial table mushrooms.

The compost creation process produces the distinctive aroma. Weather conditions (wind, temperature, humidity, rain, temperature inversion) influence the aroma flow. The odor is not dangerous, according to the Santa Clara County Environmental Health Department.

The cured compost is placed in beds in a dark, cool and humid warehouse and then is pasteurized at about 140 degrees to kill any surface disease-causing organisms and pests. Workers then inoculate the compost with mushroom spawn, or mycelium. Underground roots called mycelium grow in the compost, then five weeks after inoculation, mushrooms are ready to pick. A crop continues to be harvested for three to four weeks before the bed is exhausted.

After every planting cycle, the compost is removed because it is "used up," by the growing mushrooms. But it still has plenty left for gardeners and landscapers - it is sold to nurseries, landscape supply firms and general contractors.

Contact County Supervisor & City of MH regarding the aroma.

About Charles Kellogg

Charles Kellogg …Morgan Hill resident, American vaudeville performer (The Bird Singer) and early environmentalist (Save the Redwoods).

NPR Radio …audio from Nov. 26, 2003

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Home: Coyote Highlands EIRKellogg Springs & Fountain Oaks

"Real estate brochures referred to Kellogg Springs as Coyote Highlands in 2013. And it very well could have become an exclusive residential housing development if Santa Clara County Parks and the Open Space Authority had not stepped in to secure the land." … Coyote Ridge     

"The Coyote Highlands project site is directly associated with the historic development of what was initially known as Kellogg Springs, following the acquisition of much of the site in 1913 by Charles Kellogg. It was later renamed Fountain Oaks by the subsequent owner Gertrude Strong Achilles. Charles Kellogg was associated with the site in a primary way both as an owner and later as ranch manager, as well as a resident, from 1913 to his death in 1949, and Gertrude Strong Achilles was associated with the site as owner and resident from 1922 to her death in 1955."

Future parks at: Coyote Highlands & Coyote Canyon • Google

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