TABLE 2.

Chemical variables reported as means for five replicate plots^a

Subarea	Treatment	pH	Organic matter	Corg	Ntot	C/N	H+	Ca	K	Mg	Mn	Zn	Fe	Al	Na	CEC	BS
SN	D	3.79	67.1	36.2	0.99	36.5	122	3.47	752	643	301	126	61.9	329	94.6	42.2	58.7
	W	3.85	64.7	33.1	0.95	34.5	106	3.83	794	738	339	181	48.3	218	92.1	42.1	65.2
	m	3.77	62.6	33.8	0.97	35.0	128	3.48	830	649	302	161	71.5	326	105.5	43.2	58.6
	h	3.66	61.2	30.9	0.90	34.4	146	2.45	757	423	207	146	100.1	464	75.0	39.0	45.9
S	D	3.79	67.8	35.8	1.04	34.6	120	3.48	783	646	391	132	54.1	278	73.2	41.9	59.3
	W	3.81	67.0	35.3	1.00	35.4	115	3.84	837	739	342	176	46.2	213	107.2	43.2	63.9
	m	3.78	58.6	32.9	0.92	35.8	119	3.46	752	633	337	145	80.7	394	93.1	42.8	57.9
	h	3.64	66.0	33.4	0.95	35.3	144	2.82	810	480	349	175	79.2	356	88.8	40.5	50.8
N	D	3.87	61.9	33.3	0.93	35.6	114	3.84	952	651	413	140	69.0	286	63.4	43.7	62.1
	W	3.85	62.8	33.4	0.92	36.1	129	3.85	925	674	374	201	55.4	256	113.7	45.1	61.4
	m	3.78	69.6	36.5	1.03	35.7	115	3.31	862	636	297	170	61.7	279	93.5	40.3	60.6
	h	3.81	72.6	37.8	1.08	35.1	117	3.57	937	690	409	181	62.2	211	91.8	42.2	62.1
SE of the error term				0.56	0.017	0.28	2.87	0.06	18.7	12.8	18.1	5.36	3.37	19.6	2.57	0.51	0.80
P for covariant soil pH				0.00	0.05	0.00	0.08	0.00	0.01	0.00	0.00	0.51	0.20	0.70	0.40	0.00	0.00
P for treatment effect				0.12	0.77	0.05	0.36	0.48	0.63	0.08	0.20	0.01	0.00	0.22	0.00	0.87	0.04

^aOrganic matter, organic C (C_org), and total N (N_tot) are given as percentages of dry matter. Most of the nutrients are expressed as micrograms gram of organic matter⁻¹, except for Ca, which is expressed as milligrams gram of organic matter⁻¹. Exchangeable acidity (H⁺) is given in microequivalents gram of organic matter⁻¹, CEC is given in centimoles kilogram of organic matter⁻¹, and BS is given as a percentage of Ca, Mg, K, and Na of CEC. The standard error (SE) of the error term was calculated by dividing the square root of the residual mean square by the square root of the number of study plots.