Influence of Magnetic Treatment on Salts Leaching： From Soils of Different Salinity Levels
Influence of Magnetic Treatment on Salts Leaching： From Soils of Different Salinity Levels作者机构：Department of Soil and Water Faculty of Agriculture and Forestry Duhok University Duhok 42001 Kurdistan Region Iraq
出 版 物：《Journal of Agricultural Science and Technology(B)》 (农业科学与技术（B）)
年 卷 期：2014年第4卷第6期
页 面：434-439页
学科分类：0817[工学-化学工程与技术] 08[工学] 09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学]
主 题：MW soil salinit leaching
摘 要：Leaching behavior of individual ions from three saline soils （S1 = 85.0 dS/m, S2 = 53.92 dS/m and S3 = 38.14 dS/m） under magnetic water （MW） treatment or non-magnetized well water （WW） was investigated in column study. After five pore volumes, soil electrical conductivity （EC） decreased to a range between 2.99-3.29 dS/m under the two water treatments. The rate of soluble cations leached was Na＋ 〉 Ca2＋ 〉 Mg2＋ 〉 K＋ and CI- 〉 SO42- 〉 HCO3- for anions under the two water treatments. The greater amount of salt leached was during the first two pore volumes and was higher under MW treatment. Among soils, the higher the initial EC, the greater the amount of the salt leached. Measurements of the exchangeable Na~ performed at the end of leaching experiment showed a high decrease in soil exchangeable Na＋ compared to the initial values of sodium adsorption ratio （SAR） and exchangeable sodium percentage （ESP） in the soil indicated that there was no prospects of soil sodification after leaching with five pore volumes.
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