Effect of Using Treated Garbage Leachate on Some of Soil’s Biological and Chemical Properties

Increasing human populations are placing greater strain on water resources. Whenever good quality water is scarce, water of “marginal quality” will have to be considered for using in agriculture. Garbage leachate is marginal quality water and using of this for irrigation can be an important consideration when its disposal is being planned in arid and semi-arid regions. In this study, garbage leachate was used for irrigation of soil. Six different irrigation treatments were designed with three replications. The treatments were: T1, surface drip irrigation with irrigation water (control); T2, subsurface drip irrigation in 30 cm depth with irrigation water (control); T3, surface drip irrigation with treated interval water and garbage leachate; T4, subsurface drip irrigation in 30 cm depth with treated interval water and garbage leachate; T5, surface drip irrigation with treated complex water and garbage leachate; T6, subsurface drip irrigation in 30 cm depth with treated complex water and garbage leachate. Chemical and microbiological characteristics of soil and water were analyzed. The results indicated that T4 treatments could control soil contamination and in comparison with complex and surface irrigation, decrease the pollution problems in the soil.