Agronomic Services
Crop Fertilization Based on North Carolina Soil Tests
| Table 4.11 Commonly available sources of sulfur (S) | ||
|---|---|---|
| Source | Formula |
% S |
| Sulfur | S | 90–100 |
| Ammonium sulfate | (NH4)2SO4 | 24 |
| Gypsum (calcium sulfate) | CaSO4 • 2H2O | 19 |
| Epsom salt (magnesium sulfate) | Mg2SO4 • 7H2O | 13 |
| Potassium sulfate | K2SO4 | 18 |
| Potassium magnesium sulfate (Sul-Po-Mag) | K2SO4-MgSO4 | 22 |
| Superphosphate | Ca(H2PO4)2 • H2O + CaSO4 | 12 |
| Ammonium thiosulfate | (NH4)2S2O3 | 26 |
| Sulfur-coated urea | CO(NH2)2-S | 10 |
 Hardy DH, Tucker MR, Stokes CE. 2014. Crop fertilization based on North Carolina soil tests. Raleigh (NC): North Carolina Department of Agriculture and Consumer Services, Agronomic Division. Circular No. 1. |
||
Last Update
January 10, 2014
