Estimating Nitrogen Availability of Heat-Dried Biosolids

Table 1

Biosolids nitrogen, pH, and solids.

Biosolids dry product	Total N (g kg^−1)	Ammonium-N (g kg^−1)	C: N	Solids (g kg^−1)	pH
Soundgro	57	3.5	5.4	950	7.0
Milorganite	63	2.5	5.4	960	6.2
Sumner	51	2.5	6.1	890	6.7