Table 5: ANOVA P-values that show the main and interaction effects of Source of P (Source), Rate of application (Rate), and Incubation time (Day) as well as the linear and quadratic coefficients of the covariate on %PRR. Significant effects that require further multiple means comparison are shown in bold.

Source of variationLow-STP soilMedium-STP soil

Source0.8570.609
Rate0.2850.303
* 0.1340.934
Day0.0010.033
* 0.0040.002
* 0.5440.002
* * 0.3890.009
pH0.0030.001
pH squared0.0040.001