The Effect of Magnetized Saline Water on Infiltration and Electrical Conductivity in Different Soil Textures

Infiltration and coefficients of infiltration equation are of the most important parameters in the design and evaluation of irrigation systems. The objective of this research was to compare the cumulative infiltration, infiltration rate and electrical conductivity of different soil textures including: sandy loam, silt and clay under saline water 0.58 dS/m, 5 dS/m and 10 dS/m with magnetized and non-magnetized water. Magnetized water was obtained by passing the water through a strong permanent magnet installed in a feed pipeline. Infiltration coefficients of different soils obtained based on Kostiakov-Lewis equation. The results showed that, magnetized water caused increasing of cumulative infiltration and also increasing of infiltration rate in different soil textures and all saline water treatments and this effect was significant (p<0.01). At the end season, in non-magnetized water and saline water of 5 dS/m and 10 dS/m, the average cumulative infiltration was reduced 10.8% and 25.6% respectively as compared to control treatment. But, in magnetized water and saline water of 5 dS/m and 10 dS/m, the average cumulative infiltration was reduced 6.4% and 13.95% respectively as compared to control treatment. In addition, using of magnetized water caused to decrease the electrical conductivity in different soil depths (p<0.01). Magnetized irrigation water had most effect on the infiltration capacity and electrical conductivity of clay and sandy loam soil, respectively. With increasing of infiltration using magnetized water, evaporation was decreased and therefore, irrigation efficiency is increased.