Effect of leachate on reclamation of qualitative properties soil in East of Esfahan

Abstract submitted to "4th EARSeL Workshop on Remote Sensing of the Coastal Zone"
Effect of leachate on reclamation of qualitative properties soil in East of Esfahan
Golnaz Sharifianpour
Iran, Islamic Republic of
Naser honarjo
Iran, Islamic Republic of
Payam Najafi
Iran, Islamic Republic of
Marjan Shirani
Iran, Islamic Republic of
Keywords: Garbage leachate, Soil quality, Complex, Interval, Surface drip irrigation, Subsurface drip irrigation
Presentation preference: poster

Improving soil productivity is very important in obtaining high and good quality yield in agricultural production. More than 40000 liters of leachate is produced daily, in process of converting 500 metric tons garbage into compost. The leachate produced is rich in organic matter as well as macro and micronutrients for plant growth. For purpose of effect of garbage leachate (GL) on soil quality, an experiment was conducted as splite plot design with 3 original treatment, 2 secondary treatment and 3 replications during 6 months in 2008 an 2 stages (middle and end of research period) on the east of Esfahan’s soil. The treatments of middles’s period contained 1) Normal water as surface drip irrigation 2) Normal water as subsurface drip irrigation 3) Interval (GL) and water (25% GL and 75% Normal water) as a surface drip irrigation 4) Interval (GL) and water (25% GL and 75% Normal water) as a subsurface drip irrigation 5) Complex (GL) and water (25% GL and 75% Normal water) as a surface drip irrigation 6) Complex (GL) and water (25% GL and 75% Normal water) as a subsurface drip irrigation. In second stage,the leachate diluted for deacrease of effects of salinity. So EC became 6 dS/m and this diluted leachate used as a original source of leachate. Then soil samples were collected in two stages. In this research,some parameters of soil quality estimated. Through these parameters, in this paper EC, pH, OM, Na, Ca, Mg, N, P measurement.The results showed, (GL) increased soil salinity and there was different significantly between treatments, also (GL) had effect on pH of soil significantly.(GL) caused to increase OM%, N, P, K, cations and microelements. Soil’s elements in complex treatment was more increased comparison to interval treatment also soil’s element with (DI) system more increased comparison to (SDI) system. Included, interval subsurface drip irrigation was shown better condition, based on EC and other salt solution comparison to other treatments.

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