Sample	Zone	Bank	Depth	mg NH₄-N kg^-1 soil	mg NO₃-N kg^-1 soil	N net mineralization, mg mineral N kg^-1 soil	net nitrification, mg NO₃-N kg^-1 soil	% Sand	% Silt	% Clay	Soil type	g OM g^-1 soil
1	East	North	0-15 cm	1.70	2.75	−1.13	0.32	35.1	37.8	27.0	Clay Loam	0.068
1	East	North	15-30 cm	0.59	2.22	1.01	1.40	20.1	47.3	32.5	Silty Clay Loam	0.056
2	East	North	0-15 cm	1.61	2.37	0.55	1.66	56.0	20.8	23.2	Sandy Clay Loam	0.055
2	East	North	15-30 cm	0.78	1.85	−0.40	−0.59	61.9	19.8	18.4	Sandy Loam	0.034
5	Center	North	0-15 cm	3.26	3.15	4.83	4.40	70.8	14.3	14.9	Sandy Loam	0.039
5	Center	North	15-30 cm	0.76	1.63	0.21	0.75	68.0	14.7	17.3	Sandy Loam	0.031
6	Center	North	0-15 cm	1.50	2.09	−0.06	1.25	77.6	11.4	11.0	Sandy Loam	0.035
6	Center	North	15-30 cm	0.83	1.13	0.73	1.41	75.4	11.8	12.8	Sandy Loam	0.027
7	Center	North	0-15 cm	1.05	1.24	1.75	2.52	59.0	20.1	20.9	Sandy Clay Loam	0.045
7	Center	North	15-30 cm	0.32	0.88	0.68	0.71	40.9	17.0	42.1	Clay	0.029
12	West	North	0-15 cm	0.62	2.34	−0.67	−0.18	66.6	14.0	19.4	Sandy Loam	0.042
12	West	North	15-30 cm	0.53	1.89	0.47	0.90	59.5	18.1	22.4	Sandy Clay Loam	0.033
13	West	North	0-15 cm	1.45	2.48	0.07	1.21	65.8	18.5	15.7	Sandy Loam	0.041
13	West	North	15-30 cm	0.69	1.50	0.68	1.02	61.5	18.3	20.2	Sandy Clay Loam	0.029
3	East	South	0-15 cm	2.47	1.68	−0.94	1.19	60.3	16.6	23.1	Sandy Clay Loam	0.043
3	East	South	15-30 cm	0.79	1.02	−0.63	0.04	66.6	16.2	17.2	Sandy Loam	0.026
4	East	South	0-15 cm	1.69	0.81	−0.66	0.82	58.5	24.2	17.3	Sandy Loam	0.042
4	East	South	15-30 cm	0.61	1.16	−0.54	−0.04	60.5	23.6	15.9	Sandy Loam	0.030
8	Center	South	0-15 cm	1.29	1.82	1.86	2.89	58.4	22.4	19.2	Sandy Loam	0.048
8	Center	South	15-30 cm	1.21	1.10	0.10	1.10	58.3	22.6	19.1	Sandy Loam	0.033
9	Center	South	0-15 cm	1.18	0.54	1.49	2.40	54.3	26.2	19.4	Sandy Clay Loam	0.044
9	Center	South	15-30 cm	1.06	0.23	−0.09	0.73	50.8	29.3	19.9	Loam	0.036
10	West	South	0-15 cm	1.79	1.97	−0.33	0.50	58.3	22.4	19.3	Sandy Loam	0.044
10	West	South	15-30 cm	0.59	1.00	−0.19	0.25	54.4	24.2	21.4	Sandy Clay Loam	0.033
11	West	South	0-15 cm	1.09	0.96	0.32	1.13	37.3	36.0	26.7	Clay Loam	0.059
11	West	South	15-30 cm	1.16	0.89	0.31	1.19	24.6	50.0	25.4	Silt Loam	0.048