Table 3. Effects of soil parameters and functional group (FG) identity on N:P ratios of different plant compartments and entire plant samples.

Note the significant effect of FGs when treated as single effect and also when nested within successional stages.

		Plant N:P			Leaf N:P			Stem N:P			Root N:P
	DF	F	P value	DF	F	P value	DF	F	P value	DF	F	P value
Stage	2	1.27	0.29	2	1.18	0.313	2	1.7595	0.181	2	0.774	0.465
FGs	2	22.9	< 0.0001	2	12.5	< 0.0001	2	23.09	< 0.0001	2	15.06	< 0.0001
Net N min	1	0.537	0.475	1	0.434	0.528	1	2.79	0.116	1	0.0025	0.960
AvP	1	0.616	0.435	1	0.353	0.558	1	0.0999	0.753	1	1.11	0.296
Soil N:P	1	1.69	0.197	1	0.409	0.525	1	4.86	0.0312	1	0.503	0.481
FGs[stage]	6	7.52	< 0.0001	6	4.77	0.0005	6	7.34	< 0.0001	6	5.17	0.0003