since there
the major effects of OMW application on soil properties including
water infiltration and repellence are expected. The OMW disposal
was carried out once per year for 4 years in Revivim and one time
in Negba and Gilat. The soil sampling was carried out about 3–
5 months after the latest OMW application. The soil samples were
air-dried and sieved through 2-mm mesh. The examined soils and
the OMW application rates are listed in The particle size
distribution in each soil was characterized using the Bouyoucos
hydrometer method The OC contents of
the soils were determined with a Thermo-Finnigan C, N analyzer
(after pretreatment of the soil samples with 0.2 M HCl to remove
carbonates). All of the analyses were carried out in triplicate. The
particle size distributions, OC contents and pH values of soil
extracts determined by Chen et al are also listed in Table 1.