Determination of Some Major Physical Characteristics of the Soil at the Jean Lorougnon Guédé Daloa University School-Field and its Suitability for Cultivation

Authors : N’GANZOUA Kouamé René; ZADI Florent; KOUAME Amany Guillaume; ZRO Bi Gohi Ferdinand

Volume/Issue : Volume 8 - 2023, Issue 7 - July

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The study was conducted from mid-May 2022 to June 2022 during the rainy season on the experimental plot of the University Jean Lorougnon Guédé of Daloa (Côte d'Ivoire). The objective was to provide good scientific information on the morphology and the level of physical fertility of the school-field soil for a good agricultural activity. In the field school area, after having determined the azimuthal direction and identified the dominant vegetation, soil pits (100 x 80 x 120 cm) were opened according to the toposequence, at the preferential positions of plateau, slope, mid-slope and lowland, then observed and described. After the soil profiles were described, soil samples were taken from the horizons (surface A and underlying B) at each level of the toposequence to determine the physical parameters. An analysis of variance of the data was performed with SAS 9.4 software and the means were separated using the Newman-Keuls test at the 5% probability level. The results showed that at the morpho pedological level, the field-school soil had a thick superficial A horizon (22 to 32 cm) and a deep underlying B horizon (98 to 88 cm) from the plateau to the lowlands. A plinthitic ferralsol, a plinthitc leptosol, a pseudogleyic ferralsol and a fluviosol were respectively determined along the toposequence. At the physical level, a good particle size fraction was recorded giving a silty-sandy texture of the field-school soil. The average bulk density (1.35 to 1.50 g/cm3) as well as the useful reserve (>100mm) were satisfactory for good soil water circulation. In terms of cultivation suitability, the field-school soil did not present any major constraints to farming. In conclusion, the champ-école soil presented morpho pedological characteristics and physical properties favorable to a good agricultural activity. However, it was noted that the downstream soils (mid-slope and lowland) would be more favorable to food and vegetable crops while the upstream soils (plateau and slope) would be suitable for perennial crops.

Keywords : Morpho Pedological Characteristics, Physical Properties, Cultivation Aptitude, Field School, Jean Lorougnon Guédé University Daloa (Côte d’Ivoire).


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