Characteristics and Suitability of Mayo-Lemie Soils for Corn Production

A study conducted in the Mayo-Lemié region of southwestern Chad aimed to determine the physicochemical characteristics and suitability of a soil for maize cultivation. A soil profile was established and described in the field, and soil samples were then collected from the different horizons. These samples were oven-dried for two weeks, crushed, labeled, and sent to the laboratory for routine analysis. The results of the analyses showed that all the samples analyzed ranged from slightly acidic to acidic with pH between 5.1 and 6.5; similarly, all exchangeable cations were poorly represented. The sum of exchangeable cation decreases with depth, as do the values of other nutrients. The results of the laboratory analyses were compared white the climatic data of the study area for evaluation according to the FAO. The climate assessment shows that the climate is very suitable for maize cultivation with an adjusted climate index of 88.03. It also appears from this study that the land unit concerned is marginally suitable for maize production with a parametric value of 31.82. The sandy texture remains the main limitation. To improve the situation, crop rotation is necessary, stubble should be returned to the fields after harvest, and mineral and organic fertilizers should be applied to improve the physical and chemical characteristics of the soil in order to increase yields.