← Back to fertilizersFAO fertilizer specifications · destination regulation

Diammonium Phosphate 18-46-0

Concentrated nitrogen-phosphate fertilizer for broad-acre agriculture and blending.

Commercial overview

Contract basis,
clearly defined.

DAP is traded by nutrient analysis, phosphate solubility, moisture and granulometry. The FAO reference is shown; destination registration and the signed grade schedule govern supply.

Reference basisFAO DAP reference
Detailed specification

Quality acceptance matrix

Values are commercial reference points—not an offer or automatic guarantee. Use the current official standard and agreed contract schedule for procurement.

ParameterReference requirementTest method / basis
Total nitrogen18% minimumRecognized fertilizer analysis
Neutral ammonium citrate soluble P₂O₅46% minimumRecognized fertilizer analysis
Water-soluble P₂O₅41% minimumRecognized fertilizer analysis
Moisture1.5% maximumGravimetric
Particle size90% between 1–4 mmSieve analysis
Material below 1 mm5% maximumSieve analysis
FormFree-flowing granulesVisual
ColorSource dependent / declaredVisual
ConditionFree from hard lumps and contaminationInspection
Applications

Where the product is used

  • Basal crop nutrition
  • Broad-acre cereals
  • Fertilizer blending
  • Phosphorus-deficient soils under agronomic advice
Required documents

Transaction file

  • Certificate of analysis
  • Certificate of origin
  • Safety data sheet
  • Weight and packing list
  • Regulatory / phytosanitary documents where applicable
Primary reference

Verify the current edition

Standards are revised over time. Procurement must confirm the current edition and destination law.

FAO fertilizer specifications ↗
Qualified commercial inquiries

Request this product.

Provide quantity, loading basis, destination, delivery window, specification edition and payment terms.

Submit product inquiry ↗