Estimating Nitrogen Availability of Heat-Dried Biosolids

Table 8

Apparent N recovery and urea N equivalent from biosolids, residual year. Single and split application data pooled.

	Apparent N recovery (kg ha^−1)		Apparent N recovery (%)		Urea N equivalent (%)
Treatment	Trial A 2008	Trial B 2009	Trial A 2008	Trial B 2009	Trial A 2008	Trial B 2009
Soundgro	35	28	6	6	9	10
Sumner	46	34	5	5	8	8
Milorganite	18	10	3	2	5	4