AGROCHEMICAL EVALUATION OF SOIL QUALITY PARAMETERS
2018
chaouqi, nora | EL GHAROUS, M. | Bouzziri, M.
The analyzes show that the majority of soils are between neutral (6.5 <OS10, OS11 ≤ 7) and alkaline (7 <OQ3, AL5, S6,7 ≤ 7.5), with 1/7 considered as very acidic soil (SA19 <5.5). For humidity measurement, OS10 & OS11 are the most humid. For the NO3- concentration, it decreases from Oued Quibane to Had Lghoualem (17.8 ppm). The soils of this study have a low C/N factor between 1 and 6. The results also showed that the soils have a relatively low average OM level. Soils do not indicate a salinity value (EC < 250 μS/cm) with the exception of S7 and OQ3 (250 <EC (25 °C) <750 μS /cm). Soils marked a dominance of P-Ca, the results discussed in this document indicate a probable difficulty to constitute reserves of P able to be directly up taken by crops.
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