DAP (Diammonium Phosphate)
Description
Nutrients include P2O5 (46%) and ammoniacal nitrogen (18%). DAP provides the correct proportion of phosphate and nitrogen needed for farming wheat, barley and vegetables. It is also applied in the early stage of fruit orchard fertilization.
Properties
White crystal. Commercially available in colored state. Soluble in water.
| Unit | Quantity |
|---|
| Molecular weight | amu | 132 |
Specifications
| Unit | Quantity / Description |
|---|
| Ammoniacal nitrogen | wt % | 18 min |
| Total P2O5 | wt % | 46 min |
| Water soluble P2O5 | wt % | 41 min |
| Moisture | wt % | 1 max |
| Particle size | wt % | 1-4 mm....90% min
< 1 mm....5% max |
Hazards and safety
Relatively safe.
Applications
Used for grains, fruits and vegetables; banding (for calcareous soils) and broadcasting.
Storage and handling
Stored in bulk and bags.
Packaging
DAP is bagged in 1 ton bags and sold in the Kingdom of Saudi Arabia.
Operating companies
National Chemical Fertilizer Company (IBN AL-BAYTAR).