Salinity class	EC-_Lab (dS・m⁻¹)	pH	Ca²⁺ (mg・l⁻¹)	K⁺ (mg・l⁻¹)	Mg²⁺ (mg・l⁻¹)	Na⁺ (mg・l⁻¹)	SAR	Cl⁻ (mg・l⁻¹)	${SO}_{4}^{2 -}$ (mg・l⁻¹)
Extreme	507.0	7.6	1276	843	672.0	154,700	874.0	170,715	11,275
Very high	170.0	7.2	1878	1454	2874.0	76,373	258.9	100,281	28,020
High	67.0	7.5	1905	651	1581.0	24,171	99.2	48,546	5488
Moderate	7.4	8.6	531	67	181.0	1324	12.7	2480	881
Low	4.4	8.2	284	44	96.0	782	10.3	1329	754
Non-saline	2.6	7.9	154	28	58.4	530	9.2	886	63