Table 1.

Descriptive statistics of reference soil dataset used for model calibration and validation (n = 3882).

Descriptive statistics	pH	Available P(mg Kg−1)	Exchangeable cations				S	Total N(%)	OC%	Extractable micronutrients (mgKg−1)
			K	Ca	Mg	Na				Fe	Zn	Cu	B	Mn	Mo
Mean	6.50	15.52	390.5	4963.64	747	69.82	13	0.18	2.09	117.25	2.82	3.08	0.52	124.9	1.16
SD	0.99	34.83	314.5	4163.04	592	33	9.2	0.11	1.11	62.85	3	1.8	0.41	65.52	1.13
Median	6.50	6	323	3559	545	41	8	0.17	1.28	107	1.6	1.8	0.43	118	0.38
Minimum	3.32	0	21	156	26	0	0.05	0	0.11	6	0.05	0.05	0.005	6	0
Maximum	8.86	703	12483	30566	4760	2464	4783	0.99	13.37	1092	124	46.28	11.58	1690	14.1
Kurtosis	0.95	8.9	9.6	2.0	1.9	16.4	17	2.0	3.2	3.1	21.6	8.01	8	4.95	2.5
Skewness	0.05	7	8.4	1.1	1.3	2	8	1.4	1.7	1.6	4.9	3.9	3.5	3.01	2.3