Industry: 2873—Nitrogenous Fertilizers
Establishments primarily engaged in manufacturing nitrogenous fertilizer materials or mixed fertilizers from nitrogenous materials produced in the same establishment. Included are ammonia fertilizer compounds and anhydrous ammonia, nitric acid, ammonium nitrate, ammonium sulfate and nitrogen solutions, urea, and natural organic fertilizers (except compost) and mixtures.
| Ammonia liquor | Fertilizers: natural (organic), except compost |
| Ammonium nitrate and sulfate | Nitric acid |
| Anhydrous ammonia | Nitrogen solutions (fertilizer) |
| Aqua ammonia, made in ammonia plants | Plant foods, mixed: made in plants producing nitrogenous fertilizer |
| Fertilizers, mixed: made in plants producing nitrogenous fertilizer | Urea |
| Codes |
Titles | Total Marketable US Businesses |
| 28730000 | Nitrogenous fertilizers | 160 |
| 28730100 | Ammonia and ammonium salts | 5 |
| 28730101 | Ammonia liquor | 0 |
| 28730102 | Ammonium nitrate, ammonium sulfate | 8 |
| 28730103 | Anhydrous ammonia | 24 |
| 28739901 | Fertilizers: natural (organic), except compost | 199 |
| 28739902 | Nitric acid | 4 |
| 28739903 | Nitrogen solutions (fertilizer) | 21 |
| 28739904 | Plant foods, mixed: from plants making nitrog. fertilizers | 39 |
| 28739905 | Urea | 7 |
