Of the by-products studied here, MBM had the
highest and DairyM the lowest total P concentration
(Table 2).
The composting of FoxM decreased the
total P concentration due to the addition of peat prior
to composting, while pelletizing the compost had no
further effect on total P concentration (Table 2).
Composting of FoxM had no influence on P
solubility, but pelletizing cFoxM decreased both the
content of water-soluble P (Table 3) and total N
concentration (Table 2).