Table 6: Conventional (CNV) and organic (ORG) cropping systems pairwise dissimilarity (covariance) matrix correlation statistics based on whole systems, crop rotations, tillage-fertility treatments within 2-year and 4-year crop rotations, and phases within 2-year and 4-year crop rotations. Covariance matrices were derived from cumulative yield, temporal yield variance, and coefficient of variation of two rotation cycles in a long-term field experiment.

FactorComparisonMSS -value -valueP (random    )P (random    )
CNVORG103 permutations

Systems309060700.431.600.060.035
Rotations2-year1619664230.190.710.240.207
4-year93568300.531.970.030.028
Tillage-fertility
 2-year rotationCTNF3227551920.682.670.010.003
CTYF4278846590.792.930.010.013
STNF367332110−0.04−0.130.560.768
STYF1244359640.933.270.010.006
 4-year rotationCTNF9378160.652.420.010.002
CTYF203128240.522.160.020.002
STNF1859119380.040.160.440.367
STYF41192570.510.930.030.046
Phase (rotation)
 2-year rotationCSCS78488470.270.850.160.153
SCSC95032650.712.640.010.001
 4-year rotationACSW302584150.080.320.380.345
CSWA204052930.963.470.010.001
SWAC70430030.331.180.120.087
WACS5016623−0.31−1.170.880.825