The insufficiency of nutrients in the soils has been identified as one of the factors that have affected the productivity of crops. An investigation was carried out to assess the trophic level of soil in the region. Using a non-probability sampling technique, a total of 70 representative surface soil samples were collected between February and April, 2021. The sampling depth ranged from 0 to 30 cm, according to the root length of the crop. The collected soil samples were analyzed to assess the pH, EC, OM, available macronutrients, and micronutrients. The macronutrients were determined using a flame photometer, and micronutrients were determined with ICP-OES. The organic matter status was low in Trenabougou soils. The soils are moderately acidic in reaction (pH 5.84) with low soluble salt content (EC 0.27 dS/m). Some macronutrients were low or medium in fertility status. The nitrogen, potassium, and magnesium nutrient index values were below 1.25, indicating low fertility status. Nevertheless, sulphurous and calcium were found at medium fertility levels with a nutrient index of 1.87 and 2.17. The concentrations of micronutrients like iron, copper, and zinc were high in soils. Nevertheless, nickel, manganese, and boron were in the limited range suitable for plant growth.
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