Table 7 Linear correlationand regression between micronutrients and enzymes (Y) and increasing soil depth (X) at different locations.
Soil parameters | Location | |||||
|---|---|---|---|---|---|---|
Ìrèle | Òkè-Àkò | Ìpaò | ||||
Correlation coefficient | Regression equation | Correlation coefficient | Regression equation | Correlation coefficient | Regression equation | |
Copper | − 0.0 | Y = 0.2667 + 0.00000 X | − 0.240 | Y = 0.360—0.00100 X | 0.764 | Y = 0.207 + 0.00433 X |
Cobalt | 0.50 | Y = 0.0800 + 0.00067 X | 0.866 | Y = 0.0432 + 0.001667 X | − 0.866 | Y = 0.09333—0.000333 X |
Iron | − 0.746 | Y = 2.180—0.01100 X | 0.199 | Y = 1.087 + 0.0053 X | − 0.982 | Y = 2.543—0.02800 X |
Manganese | 0.908 | Y = 0.0367 + 0.00333 X | 0.500 | Y = 0.0900 + 0.00067 X | − 0.843 | Y = 0.360—0.00633 X |
Zinc | − 0.995 | Y = 2.3700—0.02333 X | − 0.259 | Y = 1.583—0.0037 X | 0.409 | Y = 1.340 + 0.00233 X |
Pho | 0.461 | Y = 0.613 + 0.0140 X | − 0.976 | Y = 3.803—0.03700 X | 0.954 | Y = 1.607 + 0.01767X |
Phy | 0.561 | Y = 0.1593 + 0.000300 X | 1.00 | Y = 0.1500 + 0.0006670 X | 0.941 | Y = 0.15367 + 0.000533 X |
Tsd | − 0.588 | Y = 13.43—0.149 X | − 0.950 | Y = 5.85—0.1100 X | 0.374 | Y = 6.10 + 0.076 X |
Dsr | − 0.996 | Y = 1.8367—0.01500 X | 0.949 | Y = 1.24 + 0.01100 X | 0.950 | Y = 0.537 + 0.02600 X |
