North Country Organics
Acidity/Alkalinity of Fertilizer Materials
| MATERIAL | ACIDITY |
|---|---|
| Ammonium Nitrate | -60 |
| Ammonium Sulfate | -110 |
| Animal Tankage | +10 |
| Basic Slag | +70 |
| Bone Meal | +20 |
| Calcitic Lime (ground) | +98 |
| Calcium Nitrate | +20 |
| Cottonseed Meal | -9 |
| Dolomitic Lime (ground) | +100 |
| Dried Blood | -22 |
| Epsom Salt (MgSO4) | 0 |
| Fish Scraps | -8 |
| Gypsum (CaSO4) | 0 |
| Magnesium Oxide | +250 |
| MAP | DAP | -65 | -70 |
| Phosphate Rock | +10 |
| Potassium Magnesium Sulfate | 0 |
| Potassium Nitrate | +26 |
| Potassium Sulfate | 0 |
| Sodium Nitrate | +29 |
| Sulfur | -218 |
| Sulfur coated Urea | -118 |
| Urea | -84 |
| Wood Ash | +60 |
For example, 9 lbs of pure lime would be required to neutralize the acidity created by 100-lbs of cotton seed meal. Positive values indicate the ability to neutralize acidity.