| Abstrakt: |
The degradation of water quality in Tunisia is mainly due to overexploitation of groundwater, pollution, and above all to mismanagement. The effect of these waters can influence the physicochemical quality of the soil. For this fact, the method of magnetic treatment can be used in the field of agriculture to alleviate the salinity problems of water. Given the importance of the impact of irrigation water on soil support, the objective of this study is to investigate the impact of magnetic treated water on soil quality. A test companion was conducted for 4 months. During this period, the tests illustrated the effect of different parameters related to 4 magnetic devices, with various intensities from 0.01 to 0.5 T, at different soil depths. It was noticed that the collected soil samples from magnetized lines had a lower salinity than those of non-magnetized sites. The magnetic treatment of the irrigation water reduced the soil conductivity by about 19% for the 0–20-cm depth and about 17% for the 20–40-cm depth under a 0.3-T magnetic strength. On the other hand, the magnetic treatment of irrigation water increased the pH of the soil. Accordingly, the recorded difference between the pH of the treated and untreated soils reached 8% and 5% for 0.5 T and 0.3 T, respectively. The statistical analyses were conducted to exhibit the correlation and the interactions between different variables such as pH, conductivity, depth, length, soil moisture, and intensity. We rely on Bayesian networks to build a graphical model that displays the water treatment impact on soil characteristics. Therefore, we calibrated a discrete Bayesian network, starting from raw measured data, and we discovered the relationships between different variables characterizing the agricultural soil and the experimental conditions based on magnetic water treatment. [ABSTRACT FROM AUTHOR] |
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