Table 1. Basic physicochemical properties of three soils.

Properties	Ferralic Cambisol	Calcaric Cambisol	Luvic Phaeozem
Location	111°52′N, 26°45′E	113°41′N, 35°00′E	124°48′N, 43°30′E
Organic carbon (g kg-1)	10.1±0.1b	6.3±0.1c	15.6±0.2a
Total N (g kg-1)	1.2±0.1a	0.7±0.1b	1.4±0.2a
Total P (g kg-1)	0.9±0.1a	0.7±0.1b	0.6±0.1c
Total K (g kg-1)	12.8±0.1b	21.3±0.3a	22.9±0.3a
pH (soil:water = 1:2.5)	5.2±0.1b	8.3±0.2a	5.9±0.1b
Sand (%)	18.8±0.3c	67.1±1.1a	38.7±0.6b
Silt (%)	31.9±0.4a	18.7±0.2c	28.7±0.4b
Clay (%)	43.9±0.8a	10.1±0.2c	29.3±0.5b

Values are mean ± standard error of three replicates. Different letters in the same row indicate significant difference at P<0.05 among three soils.