. 2019 Aug 30;10:1931. doi: 10.3389/fmicb.2019.01931

Table 2.

Ratios of gross and net N transformation rates for an agricultural soil under silage corn that received ammonium sulfate (AS), dairy waste compost (DC), and dairy liquid waste (LW) at 100 and 200 kg available N ha⁻¹ for 6 years.

Treatment	NNR^a/GNR	GNR/GMR	GNR/NP
AS100	0.38^ba	0.59^b	0.10^b
AS200	0.36^ba	0.66^b	0.09^b
DC100	0.16^b	1.36^ab	0.58^a
DC200	0.15^b	1.88^a	0.64^a
LW100	0.46^ab	0.78^ba	0.18^b
LW200	0.69^a	0.66^b	0.22b^a

GNR/GMR, and GNR/NP values are means for year 1999 to 2002 (Habteselassie et al., 2006). Numbers followed by same letter within a column are not significantly different at P < 0.05.

From laboratory incubation measurements.

NNR, net nitrification rate; GNR, gross nitrification rate; GMR, gross mineralization rate; NP, nitrification potential.