Table 1. Physical and chemical properties of the soil.

Physicochemical property	Water content (%)	pH	Cr content (mg kg−1)	Organic content (%)	Conductivity (mS cm−1)
Primitive soil	3.2 ± 0.2	6.7 ± 0.2	501.23 ± 5.12	10.91 ± 1.23	0.404 ± 0.002