The importance of harvest residue and fertiliser on productivity of Pinus patula across various sites in their first, second and third rotations, at Usutu Swaziland

New Zealand Journal of Forestry Science

Table 2 Soil chemical characteristics of the five compartment soil sets, at the establishment of the first and second rotations of the first trial series; adapted from Germishuizen (1979)

Site	Rotation	Depth (cm)	pH		Exchangeable Al (cmolc kg^− 1)	Exchangeable bases (cmolc kg^− 1)			CEC (cmolc kg^− 1)	N (%)	OM (%)
Site	Rotation	Depth (cm)	H₂O	CaCl₂	Exchangeable Al (cmolc kg^− 1)	Ca	Mg	K
A9 (M-set)	F1R	0–8	4.50	3.86	0.64	0.10	0.30	0.04	0.95	0.08	4.1
	F1R	30–38	5.00	4.18	0.30	0.30	0.60	0.19	1.50	0.12	4.1
	F2R	0–8	4.12	3.72	1.16	0.10	0.35	0.06	2.00	0.06	4.6
	F2R	30–38	4.30	3.92	0.78	0.10	0.10	0.04	1.20	0.08	4.1
B17 (Q-set)	F1R	0–8	4.50	3.95	0.78	0.20	0.40	0.12	1.70	0.20	7.1
	F1R	30–38	4.70	3.99	0.09	0.31	0.31	0.25	1.50	0.11	6.9
	F2R	0–8	4.10	3.80	1.01	0.10	0.10	0.17	1.70	0.18	8.5
	F2R	30–38	4.30	4.43	0.71	0.10	0.10	0.03	0.80	0.06	4.2
C9 (Q-set)	F1R	0–8	4.75	4.10	0.42	0.60	0.60	0.25	2.15	0.26	5.8
	F1R	30–38	4.72	3.98	0.48	0.20	0.40	0.06	1.30	0.08	3.6
	F2R	0–8	4.18	3.62	1.16	0.20	0.50	0.12	2.25	0.18	5.5
	F2R	30–38	4.18	3.78	1.01	0.10	0.30	0.05	1.20	0.08	3.5
D5 (T/Q-set)	F1R	0–8	4.50	3.95	0.70	0.10	0.40	0.11	1.60	0.18	6.2
	F1R	30–38	4.52	3.92	0.57	0.10	0.30	0.05	1.00	0.13	4.5
	F2R	0–8	4.08	3.72	1.01	0.10	0.30	0.06	1.35	0.08	4.1
	F2R	30–38	4.26	3.90	0.71	0.05	0.25	0.04	0.80	0.07	3.0
E2 (N-set)	F1R	0–8	4.80	3.98	0.42	0.08	0.08	0.14	2.70	0.14	7.2
	F1R	30–38	4.72	3.90	0.67	0.15	0.30	0.05	1.70	0.12	5.2
	F2R	0–8	4.42	3.72	1.05	0.05	0.15	0.07	2.20	0.07	5.5
	F2R	30–38	4.30	3.85	0.69	0.05	0.25	0.04	1.50	0.08	4.4