Gravel Pit Reclamation With Compost
Windrows are turned every three days for 15 days with a Midwest Bio-Systems turner pulled by a tractor.

Compost made from short paper fiber and other industrial organics has been key to growing corn and hay crops in a former gravel pit.
Robert Spencer
BioCycle December 2012, Vol. 53, No. 12, p. 39


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Composting, Organics Recycling, Anaerobic Digestion