Spatial Variability and Geostatistical Analysis of Soil Properties in the Diversified Cropping Regions of Bangladesh Using Geographic Information System Techniques

Table 1

Descriptive statistics (n = 92) of soil chemical properties at the depth of 0–20 cm.

	Minimum	Maximum	Mean (µ)	Median	SD (σ)	Variance	CV (%)	Skewness	Kurtosis
pH	6.77	7.98	7.47	7.47	0.25	0.06	3.35	−0.59	0.63
EC (dSm^−1)	0.00	1.98	0.81	0.66	0.62	0.39	76.54	0.26	−1.42
SOC (%)	0.12	1.46	0.73	0.73	0.38	0.15	52.05	0.21	−0.94
Total N (%)	0.23	0.46	0.38	0.39	0.06	0.00	15.79	−0.78	−0.11
Av P (ppm)	45.37	361.19	129.14	104.66	80.57	6491.66	62.39	1.75	2.77
Av K (ppm)	25.04	166.09	74.34	69.78	31.37	983.95	42.20	1.14	1.67
Av S (ppm)	39.98	173.09	99.38	96.63	29.19	852.49	29.37	0.57	0.19

CV (%) =   × 100, where CV = coefficient of variation, σ = standard deviation, µ = mean, pH = soil pH, EC = electrical conductivity, SOC = soil organic carbon, Total N = total nitrogen, Av P = available phosphorus, Av K = available potassium, and Av S = available sulfur.