Diammonium Phosphate (DAP 18-46-0) – Balanced Nitrogen & Phosphorus Fertilizer

Diammonium Phosphate (DAP) is a widely used compound fertilizer combining 18% nitrogen (as ammonium) and 46% phosphorus (as P₂O₅). This dual-nutrient formulation is ideal for enhancing early plant development, stimulating root growth, and improving crop productivity.

DAP is highly water-soluble, which makes it suitable for direct soil application, fertigation, or as a component in NPK fertilizer blends. Its relatively high pH buffering capacity helps reduce soil acidity temporarily, especially in acidic soils.

At Cavin Resource, we provide granular DAP fertilizer in bulk packaging for agriculture, commercial blending, and international distribution. Our DAP is manufactured under stringent quality standards and supplied with full export documentation and worldwide delivery.

⚙️ Production Method

Reaction of Ammonia with Phosphoric Acid

• DAP is produced by reacting anhydrous ammonia (NH₃) with phosphoric acid (H₃PO₄) under controlled conditions.

• The resulting product, (NH₄)₂HPO₄, is granulated and cooled to form hard, non-caking granules.

• The end product is highly soluble and ready for direct application or blending.

🏭 Use Cases by Industry

🌾 Agriculture

• Used as a starter fertilizer to supply crops with essential phosphorus and nitrogen during early growth

• Applied in broadcast, side-dressing, or banding methods

• Popular in cereals, oilseeds, legumes, maize, rice, vegetables, and fruits

🧪 Industrial Applications

• Used in fire retardants, yeast production, and fermentation industries

• Ingredient in corrosion inhibitors, water softeners, and cleaning compounds

✅ Benefits of Diammonium Phosphate (DAP)

• 🌱 Balanced N & P Nutrients: Supports vigorous early root and shoot development

• 🚀 Highly Soluble & Fast-Acting: Quick nutrient availability for plant uptake

• ⚖️ Reduces Soil Acidity: Mild alkaline effect improves phosphorus availability in acidic soils

• 🌾 Versatile Application: Works well in dry and liquid fertilizer programs

• 📦 Bulk Friendly: Granulated for easy storage, transport, and mechanical application

📦 Packaging Options

• 25kg and 50kg woven polypropylene bags with PE liner

• 1000kg jumbo bags with UV protection

• Customizable packaging (private label available)

• Export-grade palletization with shrink wrap

• Complete shipping documentation provided (MSDS, COA, B/L)

❓ Frequently Asked Questions (FAQs)

1. What is the best time to apply DAP?

Answer:
DAP is best applied at planting to provide crops with a strong start. It can also be used during soil preparation or banded near seeds.

2. Can I mix DAP with urea or potash?

Answer:
Yes, DAP is commonly blended with urea, muriate of potash (MOP), and other fertilizers. However, avoid mixing with calcium- or sulfur-based fertilizers to prevent clumping or nutrient loss.

3. Does DAP increase soil salinity?

Answer:
Excessive DAP usage may lead to temporary salt buildup, especially in dry soils. Use as per recommended agronomic rates and rotate with other fertilizers.

4. Do you ship DAP globally?

Answer:
Yes. Cavin Resource provides export documentation, SGS inspection, and worldwide container shipping.

📚 Credible Sources & References

• FAO – Fertilizer Use by Crop

• International Fertilizer Development Center (IFDC)

• PubChem – Diammonium Phosphate

• ICIS Fertilizer Market Reports