Table 1.

The physical and chemical properties of the natural habitat soil of S. ferganica.

Depth (cm)	Organic carbon (mg/g)	Conductance (ms/cm)	pH	Ion content (mg/g)
				Total salt	CO32-	HCO3-	Cl-	SO42-	Ca2+	Mg2+	Na+	K+
0	13.10	32.28	8.74	138.90	0.02	0.46	0.01	88.18	2.78	0.84	37.66	0.03
5	14.82	44.15	8.87	181.80	0.04	0.55	0.01	116.40	3.88	0.76	50.00	0.18
10	17.60	8.88	8.86	41.87	0.03	0.41	2.51	23.36	1.47	0.28	10.73	0.12
15	21.56	8.26	8.83	36.58	0.03	0.37	3.02	19.17	1.00	0.33	9.48	0.10