Table 6: Correlation (r) between toxins in acid sulphate soils in rice cultivation.
|
Poison pairs |
SO4²- - Al3+ |
Fe2+ – SO4²- |
SO4²- - Fe3+ |
Al3+ - Fe2+ |
Fe2+ - Fe3+ |
Al3+ - Fe3+ |
|
R |
+ 0.478 |
+ 0.9776 |
+ 0.6830 |
+ 0.6018 |
+ 0.7177 |
+ 0.7359 |
(r 0.05 = 0.7440) (under no fertilization condition)