Assessing Soil Nutrients Variability and Adequacy for the Cultivation of Maize, Cassava, and Sorghum in Selected Agroecological Zones of Cameroon

Table 6

Summary statistics of soil chemical properties within West region (n = 5).

Soil properties	Max	Min	Mean	SD	CV	Kurtosis	Skewness	Shapiro–Wilk ( value)
TEC (100 meq/100 g)	5.12	2.46	3.54	1.20	34.04	−2.46	0.66	0.191
pH	6.20	4.80	5.80	0.58	10.41	−1.60	−0.61	0.585
Organic matter (%)	0.91	0.36	0.53	0.23	42.93	2.68	1.69	0.074
Estimated N release (lbs acre^−1)	36.00	14.00	20.80	9.01	43.32	2.72	1.70	0.074
S (ppm)	7.00	5.00	6.20	0.84	13.49	−0.61	−0.51	0.314
P (mg kg^−1)	12.00	7.00	8.8	1.92	21.86	2.61	1.52	0.223
Ca (mg kg^−1)	352	277	315.80	27.81	8.81	0.42	−0.17	0.953
Mg (mg kg^−1)	56.00	48.00	50.80	3.56	7.02	−1.12	0.94	0.159
K (mg kg^−1)	51.00	35.00	44.20	6.87	15.54	−1.52	−0.24	0.419
Na (mg kg^−1)	20.00	14.00	17.20	2.28	13.26	0.18	−0.41	0.814
Al (mg kg^−1)	370	260	321.40	49.85	15.51	−2.73	−0.47	0.278
Ca saturation (%)	62.03	30.47	48.08	13.03	27.10	−1.66	−0.54	0.784
Mg saturation (%)	16.26	8.63	12.84	3.24	25.24	−2.13	−0.48	0.663
K saturation (%)	4.27	2.55	3.37	0.69	20.33	−1.28	0.16	0.999
Na saturation (%)	2.83	1.53	2.25	0.54	23.83	−1.53	−0.36	0.925
H (%)	49.00	12.00	27.20	16.07	59.07	−1.96	0.65	0.467
B (mg kg^−1)	0.43	<0.2	—	—	—	—	—	—
Fe (mg kg^−1)	293	47.00	98.60	108.70	110.25	4.99	2.23	0.000
Mn (mg kg^−1)	127	29.00	85.00	41.92	49.33	−2.05	−0.60	0.418
Cu (mg kg^−1)	1.42	0.44	0.76	0.39	50.91	3.07	1.71	0.139
Zn (mg kg^−1)	0.74	0.42	0.58	0.14	23.92	−2.44	0.18	0.554

Min: minimum; Max: maximum; SD: standard deviation; CV: coefficient of variation; values with “<” indicate the limit of quantification.