Table 2. Soil indicators, threshold values, interpretations and scores.

Indicators	Range	Interpretation	Score	Reference
pH	5.5–7.2	Slightly acidic to neutral: Optimum for plant growth	2	[28]
	>7.2<8.0	Slightly to moderately alkaline: Preferred by some plants,possible P and some metal deficiencies	1
EC (us/cm)	<200	Low salt level	0	[42]
	200–500	Optimum salt level for plants	1
	>500	High salt level, adverse effect likely	0
BD (Mg/m3)	<1.0	High organic soil, supports plant roots	2	[28], [45]–[47]
	1.0–1.5	Adverse effects unlikely	1
	>1.5	Adverse effects likely	0
WSA (%)	<50	Infiltration and soil erosion problems likely	0	[30], [42]
	50–70	Moderate constraints	1
	70–90	Good soil	2
	>90	Excellent soil	3
GMD (mm)	<1.0	Infiltration and soil erosion problems likely	0	[30], [42]
	1–2	Moderate limitations	1
	>2	No limitation	2
MWD (mm)	<1.0	Infiltration and soil erosion problems likely	0	[30], [42]
	1–2	Moderate limitations	1
	2–5	Slight limitations	2
	>5.0	No limitation	3
PR (Mpa)	1–2	Adverse effect on plant root unlikely	2	[42], [48]
	2–3	Moderate adverse effect on plant root	1
	>3.0	Severe adverse effect on plant roots	0
N (%)	0.2–0.3	Moderate limitation	1	[41], [42]
	>0.3	Slight to no limitation	2
SOC (%)	2–3	Moderate limitation	1	[41], [42]
	>3.0	Slight to no limitation	2
N-Stock (Mg/ha)	<5.0	N deficient	1	Authors’ opinion
	5–10	Moderate to optimum N level	2
	>10.0	N-rich soil	3
C-Stock (Mg/ha)	<50.0	C deficient	1	Authors’ opinion
	50–100	Moderate to optimum C level	2
	>100	C-rich soil	3
AWC (%)	<20	Water-stress to plants	0	[31], [42]
	20–50	Moderate water availability	1
	>50	Good water capacity for plants	2
Water content(cm)	<5.0	Water-stress to plants	0	Authors’ opinion
	5–10	Moderate water availability	1
	>10	Good water capacity for plants	2

Abbreviations are same as Table 1.