Table 1: Important properties and total and water-soluble Pb and As of the orchard soils. Standard deviations of mean values based on duplicate measurements are reported for CECe and total and soluble Pb and As.

Soil pHCECe (mmoles/kg)OM (%)Total Pb (mg/kg)Total As (mg/kg)Soluble Pb (µg/L)Soluble As (µg/L)

Control5.9 2.50
A15.8 5.30
A36.2 4.75
H114.9 5.00
A66.5 5.13
G66.2 7.40