66
Table 4-3 Yield Response Surface Equations Obtained
From the First Cropping Period.
Clover applied Correlation g/kg Response Surface Equation Coefficient P = 0 mg/kg
0 Y = 0.97 0.07 Fe r2 = 0.61
1.58 Y = 0.73 0.04 Fe r2 = 0.18 3.15 Y = 3.17 0.48 Fe r2 = 0.68 P = 50 mg/kg
0 Y = 2.07 0.22 Fe r = 0.73
1.58 Y = 2.13 0.20 Fe r2 = 0.52 3.15 Y = 5.43 0.61 Fe r2 = 0.63 P = 100 mg/kg
2
0 Y = 6.57 0.88 Fe r = 0.95
1.58 Y = 3.37 0.17 Fe r = .18 3.15 Y = 5.37 0.20 Fe r2 = 0.25