PH | N | P | K | |
Red clay | Acid-5.5 | Depleted | Depleted | Depleted |
Black muck | Slightly acid-6.5 | Depleted | Depleted | Adequate |
White coral | Neutral-7.0 | Depleted | Deficient | Deficient |
Fertilized water | Acid-5.5 | Depleted | Not tested | Depleted |
Harry Saul