Table 3. Analysis of variance of soil properties (p-values) for soils collected in Spring of 2009 and 2010^a,b,c.

Source	SOC	POM-C	PMN	FDA	BD	WFPS	WSA	RLD
Crop(system)	0.6869	0.0298	0.0894	0.8815	0.0608	<.0001	0.4608	0.1063
Depth	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001
Crop(system)*Depth	0.2028	<.0001	<.0001	<.0001	0.1442	0.0027	0.014	0.0064
Year	NA	0.0763	0.4862	0.0008	0.0006	<.0001	0.0281	NA
Crop(system)*Year	NA	0.0829	0.0938	0.949	D	0.5748	0.3404	NA
Depth*Year	NA	0.0393	D	0.2801	0.3829	0.4232	0.0421	NA
Crop(system)*Depth*Year	NA	0.2982	D	0.105	D	0.2399	0.1542	NA
Clay	<.0001	0.0595	0.0062	0.0043	<.0001	D	<.0001	0.0385
	Stratification ratio
Crop(system)	0.2733	<.0001	0.0003	0.0003	0.1925	<.0001	0.0609	0.0137
Year	NA	0.0493	D	0.0755	0.5867	0.0139	0.0277	NA
Crop(system)*Year	NA	D	D	0.0431	0.0986	0.0667	0.2212	NA

SOC, Soil organic C; POM-C, particulate organic matter C; PMN, potentially mineralizable N; FDA, enzymatic activity; BD, bulk density; WFPS, water-filled pore space; WSA, percentage of water-stable macro-aggregates; RLD, Root length diameter

^a With the exception of SOC, which was measured on samples collected in Fall of 2009, and RLD, which was measured on soils collected in summer 2009

^b "NA" signifies a term not included in the model.

^c "D" signifies a term dropped from the model with a p-value >0.35 for class variables and >0.05 for the covariate.