Leaching Water and Gypsum Requirements for Improvement of Saline Sodic Soils in Konya Plain

Authors : Amelih Yilmaz, Nizamettin Çiftci

Pages : 132-144

View : 4 | Download : 18

Publication Date : 2001-04-15

Article Type : Research Paper

Abstract :This study was carried out in Konya-Karatay District Erler Village\\\'s soils to determine the leaching water requirement and gypsum levels for reclamation of saline sodic soils under field conditions by randomized plots trial design as three replications. In the study, gypsum of 85% purity obtain from wastes of fertilizer industry was used and total 210cm leaching water was applied with on 30cm increments. According to the results, to leach the 59% of the total soluble salt, equal to 1 time of leached soil depth; for 73%, 2 times and for 82%, 3 times water should be applied. In addition, leaching equation and figure are presented for leaching water in order to leach the salts in 1 m soil depth. In study, gypsum with on increment doses resulted in more improvement; having applied 210 cm leaching water for application of 1 Uda gypsum, exchangeable sodium percentage (DSY) reduced below the 15% in total 1 m soil profile while in application of 3 Uda gypsum, DSY reached to the this ratio after application of 180 cm leaching water.
Keywords : Tuzlu-sodyumlu toprak, drenaj, toprak ıslalı, yıkama suyu, jips.