The Influences of Physico-Chemical Parameters of Soil Due to The Availability Soil’s Ions.

Abstract

The chemical quality of the soil is related to the levels of chemical constituents such as mineral salts, and depends on its physical parameters. This study investigates the effect of physical and chemical factors of a soil on the availability of Na+, K+, Cl-, SO4-2, NO3- ions. The analyzed soil samples, taken at a depth of 40 cm, revealed that the pH is neutral (pH = 6.73±0.50). The ion contents of SO4-2and NO3-are high, with values of 1123.02±785.87mg/l and 1123.02±13.98 mg/l respectively; these two parameters are negatively correlated with the rate of clays. A positive and significant correlation between the calcium carbonate CaCO3, the chloride ion Cl− and the nitrate ion NO3- indicates that the higher the content of the calcium carbonate CaCO3 in the soil, the more Cl- and NO3- are available. An organic matter rate of 2.43±1.35% is recorded, which better maintains the activity of microbial biomass. The organic matter positively influences K+ levels (r=0.58**) and negatively SO4-2 (r=-0.38*), however, the positive relationship between CEC and mineral elements makes it possible to adjust its positive soil fertilization strategy (especially for K+). The analysis of ACC canonical correspondences reflects the essential effect of the physico-chemical parameters of the soil on the availability of these ions. The cations and anions present in the soil are mainly controlled by their diversity and precipitation, which affect their absorption in the soil. The results were significant to see that there is a complexity between the physicochemical parameters of the soil and the availability of ions.