107
Table 4-17 Regression Equations of Fe(OH)3 and
Clover Application in relation to of Bray 2
Extractable P Levels After the Third
Cropping.
Clover added Correlation (g/kg) Regression Equations Coefficient
P Applied (0 mg/kg)
0 Bray P = 8.92 .84 Fe r2 = .95 1.58 Bray P = 13.42 .90 Fe r2 = .41 3.15 Bray P = 20.52 2.21 Fe r2 = .95
P Applied (50 mELk)
0 Bray P = 32.92 3.76 Fe r2 = .97 1.58 Bray P = 39.60 4.73 Fe r = .98 3.15 Bray P = 42.53 3.73 Fe r2 = .96
P Applied (100 mg/kg)
0 Bray P = 59.8 6.07 Fe r2 = .96 1.58 Bray P = 66.91 6.29 Fe r2 = .99 3.15 Bray P = 69.87 5.89 Fe r2 = .98