Table 3. A two-way ANOVA table describing the effects of competitor species identity, soil history and their interaction on the dry mass of A. petiolata.

Source	Type III sums of squares	df	Mean square	F	P
Species	92.4	26	3.55	6.76	3.74 × 10−17
Soil history	179.59	1	179.59	341.39	9.51 × 10−48
Species ∗ Soil history	40.37	26	1.55	2.95	7.30 × 10−06
Error	124.15	236	0.53