Illinois
Fertilizer Conference Proceedings
January 23-24, 1990
| Home | 1990 Index | Search |
| Home | 1990 Index | Search |
| % of total phosphorous added | |||
|---|---|---|---|
| Material | Grade | 1964 | 1988 |
| Triple superphosphate | 0-46-0 | 22.1 | 12.0 |
| Diammonium phosphate | 18-46-0 | 4.0. | 67.7 |
| -- | 7-28-14 | 12.7 | -- |
| -- | 6-24-24 | 7.9 | -- |
| -- | 5-20-20 | 6.2 | - |
| Ammonium polyphosphate | 11-52-0 | -- | 4.1 |
| Ammonium polyphosphate | 10-34-0 | -- | 2.9 |
| -- | 3-10-30 | -- | 1.8 |
| Others | -- | 47.1 | 11.5 |
