Table 4.

Mean values of soil chemical properties and significance of the shiro effect from three experimental sites

Soil	Mean value (n = 20)
	pH	Moisture (%)	OM (%)	C (%)	N (%)	C/N	Al (mg g−1 organic matter)	Ca (mg g−1 organic matter)	Fe (mg g−1 organic matter)	K (mg g−1 organic matter)	Mg (mg g−1 organic matter)	Mn (mg kg−1 organic matter)	Na (mg kg−1 organic matter)	P (mg kg−1 organic matter)	S (mg g−1 organic matter)	NH4-N (mg kg−1 organic matter)	NO3-N (mg kg−1 organic matter)
Shiro+	4.55	1.15	8.20	4.29	0.12	36.23	14.16	0.67	3.16	1.02	0.22	27.30	133.35	153.98	0.90	8.10	0.32
Shiro−	4.40	0.70	5.39	2.99	0.09	32.13	7.13	1.32	2.88	0.78	0.29	84.60	133.39	118.19	0.61	9.43	0.30
P value	0.177	0.169	0.553	0.527	0.628	0.108	0.484	0.145	0.798	0.160	0.372	0.451	0.998	0.374	0.132	0.675	0.581
Shiro+abv	4.20	4.06	47.51	28.91	0.92	32.32	0.70	1.55	0.11	0.95	0.31	53.06	76.18	127.67	0.19	9.62	0.08
Shiro−abv	4.11	2.82	33.16	18.71	0.57	34.02	0.77	2.03	0.22	0.84	0.39	162.05	91.29	156.91	0.18	8.35	0.07
P value	0.340	0.075	0.140	0.064	0.064	0.468	0.952	0.268	0.926	0.534	0.308	0.172	0.563	0.464	0.967	0.691	0.630