Table 6 below represents the synthesis analysis of acidity and soil salinity.
The observations from Table 6 show that the pH of the soil (whether it is the pH in water or KCl) is slightly
higher in the second layer than in others. This means that the second layer is slightly less acid compared to the
other two. However, compared to the pH interpretation of standards [10] (Table 7), we find that the soil is
slightly acidic because it has a pH ranging between 5.2 and 6.2 for results obtained using the pH meter with water
and 5.0 - 6.0 for that with KCl. Thus, the final pH (5.60 and 5.36) also endorsed this statement.
The analysis of electric conductivity shows the same behavior as that of pH in the various layers. The 20 - 40
cm has a higher electrical conductivity of 107.85 microseconds/cm compared to the remaining 0 - 20 and 40 - 60
cm layers with 104.15 μs/cm and 101.30 μs/cm respectively although the difference is not important. This provides
information on soil salinity which is a bit higher in this layer. After comparing our results with the salinity
risk standards shown in the Table 8 below, we found that the soil was at low risk because of low salinity with an
average salinity of 104.4 microseconds/cm compared to the medium risk limits of soil salinity whose positive
ions exchange capacity ranges between 250 μs/cm and 750 μs/cm [11]. The increase in acidity and salinity in
the second layer is an information about the migration of ions from the water accumulated on the surface of the
soil. Further salts gradually leave the surface layer to form a deposit in the deeper layer.