Table 1.

The physical and chemical properties of soils.

Indictors	Na+(g/kg)	K+(g/kg)	pH	EC (mS/cm)
CK	0.11± 0.006c	0.027 ± 0.001d	7.4 ± 0.21b	0.21 ± 0.02a
LP	0.15 ± 0.004b	0.031 ± 0.001c	8.4 ± 0.08a	0.59 ± 0.10b
MP	0.16 ± 0.002b	0.035 ± 0.001b	8.6 ± 0.11a	1.35 ± 0.01c
HP	0.25 ± 0.019a	0.041 ± 0.001a	8.7 ± 0.34a	2.3 ± 0.29d

CK, without salt stress; LP, under light salt stress; MP, under moderate salt stress; HP, under severe salt stress; EC, electrical conductivity. Numbers in a column followed by different lowercase letters differ at P < 0.05.