highly significantP < 0.05
Crop lead (Pb) versus treatments, vegetables, and years Concentration of lead (Pb) in soil irrigated with wastewater The data for analysis of variance for soil lead (Pb) value showed highly significant variation ( P < 0.05) among treatments, vegetables, yrs, and their interactions like treatments × vegetables, treatment × yrs, vegetables × yrs, treatments × vegetables × yrs (Table 6 ).