These recommended UR rates were solely considered as a basis for economical analysis of VR fertilization method. The rest of the field, consisting of two plots (plots 6 & 7) located directly beside Zone 1 (with equal area & shape to those in Plots 1 & 2) were received an UR based on the soil test recommendation and the overall yield average of these Plots (plots 6 & 7) of the field was compared with others plots.