pH |
N |
P |
K |
|
| "Muck"
Tropical black soil |
6.5 Slightly acidic |
Depleted | Depleted | Adequate |
| Red clay | 5.5 Acidic |
Depleted | Depleted | Depleted |
| White coral | 7.0 Neutral |
Depleted | Deficient | Deficient |
| Fertilized water | 5.5 Acidic |
Depleted | X | Depleted |
Table for lab. Peter Pedrus