The compost was collected at various locations on the windrow
and screened to less than 10 mm and large inert items were discarded.
The screened compost was amended with ammonium
phosphate (Fisher Scientific, PA, U.S.) to give a C:N ratio of 20:1
including the carbon content of the test specimen. The initial
moisture content of the mixture was adjusted to 60% (wet-weight
basis).