Di- Amonia Phosphate (DAP)

About Di- Amonia Phosphate (DAP)

Di-Ammonium Phosphate (chemical formula: (NH)HPO) is a water-soluble, inorganic fertilizer that provides two essential plant nutrientsnitrogen (N) and phosphorus (P). It is typically produced by reacting ammonia with phosphoric acid.

DAP appears as granular, grey to off-white particles and is highly stable, making it easy to store and transport. It is especially effective when applied at the early stages of crop growth, supporting strong root development and early plant vigor.

Key Specifications

Applications

1. Agriculture

• Used as a basal fertilizer during sowing
• Suitable for crops like:
  • Cereals (wheat, rice, maize)
  • Pulses
  • Oilseeds
  • Fruits & vegetables
• Ideal for phosphorus-deficient soils

2. Horticulture

• Promotes flowering and fruit setting
• Used in nurseries and plantations

3. Fertigation

• Applied through irrigation systems due to high solubility

4. Industrial Use

• Fire retardants
• Yeast nutrient in fermentation
• Some water treatment applications

Functions in Plants

• Root Development: Encourages strong and deep root systems
• Energy Transfer: Phosphorus plays a key role in ATP formation
• Cell Division & Growth: Supports early plant establishment
• Nitrogen Supply: Aids leaf growth and chlorophyll formation

Benefits

• High Nutrient Concentration Efficient and cost-effective
• Quick Nutrient Availability Immediate uptake by plants
• Improves Crop Yield & Quality
• Enhances Root Growth Better nutrient and water absorption
• Versatile Application Suitable for soil and fertigation use
• Low Storage Losses Stable and non-volatile

Important Notes

• Avoid direct seed contact in high quantities (may cause seed burn)
• Best applied at sowing or early growth stage
• Works best when incorporated into soil rather than surface-applied