Table 4: Significant (P < 0.05) correlation coefficients between cumulative yield, CumY, temporal yield variance, TYV, and coefficient of variation, CV%, for 16 treatment combinations in conventional (CNV) and organic (ORG) cropping systems of a long-term experiment.

TreatmentCumY-TYVCumY-CV%TYV-CV%

SystemCNVORGCNVORGCNVORG

2 Yr CT+N 0.80
2 Yr CT−N 0.80 0.74
2 Yr ST+N 0.83 0.91
2 Yr ST−N 0.71
4 Yr CT+N 0.95 0.90 0.76 0.94
4 Yr CT−N 0.85 0.70 0.64 0.72
4 Yr ST+N 0.71 0.56 0.88
4 Yr ST−N 0.83 0.85