Author : Hamza Ben Amor, Anis Elaoud, Nahla Ben Salah and Khaled Elmoueddeb

In Tunisia, the availability of water resources is an important issue in agriculture, drinking water and industry. It is important to note that agriculture is the most water consuming activity. However, the scarcity of water resources, both in quality and quantity, and its geographical distribution are among the main factors limiting the development of Tunisian agriculture. It is clear that the magnetic device influences the characteristics of limestone. On the other hand, there is variation in the physico-chemical characteristics of water which improves productivity and crop performance. The performance of irrigation by magnetized water is greater than irrigation by raw water. In this context, we examine the effects of magnetic treatment of irrigation water on surface tension and evaporation. As a result, four apparatuses with different characteristics were used. The application of a magnetic field influenced the water parameters, decreasing its surface tension by up to 24 % and increasing its volume evaporated in relation to the raw water. Statistical analysis showed that our experimental results are significant.

Keywords: Magnetic device, Water Evaporation, Surface Tension, Statistical analysis.