TABLE 2.

Two-way ANOVA results showing P-values for dry shoot and root biomass per pot.

	Treatment	Degrees of freedom	Sum of squares	Mean squares	F. model	P
Shoot mass	Soil amendment	3	61.5	20.5	90.9	< 0.001
	Pasture	1	6.15	6.15	27.2	< 0.001
	Soil amendment: Pasture	3	12.3	4.12	18.2	< 0.001
	Residuals	24	5.41	0.22
Root mass	Soil amendment	3	0.32	0.10	0.62	0.603
	Pasture	1	29.2	29.2	168.9	< 0.001
	Soil amendment: Pasture	3	1.61	0.53	3.10	0.045
	Residuals	24	4.15	0.17

Treatments consisted of “Soil amendment” and “Pasture.” Significant P-values are indicated in bold.