Soil Characteristics and Pedoclimatic Evaluation of Rainfed Sorghum (Sorghum bicolor (L.) Moench) in the Mayo-Lemié Division, South-Western Chad

Table 1

Mineralogical composition of the studied soils.

Samples	Quartz%	F.K%	Plagioclase%	Anatase%	Hematite%	Calcite%	Kaolinite%	Illite%	Smectite%	Total clay%
M3-1	79.44	11.69	4.98	0.00	0.00	0.25	1.93	0.58	0.21	2.72
M3-2	80.90	6.69	2.80	0.00	0.00	0.15	6.66	1.58	0.39	8.63
M3-3	78.26	9.07	2.30	0.00	0.33	0.20	6.73	1.59	0.40	8.72
M2-1	82.91	6.99	1.92	0.00	0.00	0.38	5.66	0.27	0.47	6.40
M2-2	66.89	16.98	3.33	0.00	0.00	0.27	9.91	0.71	0.66	11.28
M2-3	57.04	12.33	2.54	1.93	0.00	1.11	21.42	1.54	1.42	24.38
M2-4	59.99	11.80	2.63	1.48	0.00	0.43	20.39	1.46	1.36	23.21
M2-5	67.49	17.53	1.03	0.00	0.00	0.31	10.70	1.26	1.13	13.09
M1-1	79.90	10.31	0.76	0.00	0.00	2.25	4.97	0.78	0.33	6.08
M1-2	79.18	5.72	6.51	0.00	0.00	0.31	6.06	0.27	0.24	6.57
M1-3	81.13	10.48	0.00	0.00	0.00	0.19	6.99	0.31	0.28	7.58
M1-4	72.85	10.27	0.00	0.60	0.26	0.23	13.44	0.64	1.12	15.20