DAP 18-46-0 (Granular)

Verified Supplier 📄 ISO 9001 Certified 📊 SGS Tested 🚢 Global Shipping

Premium quality granular diammonium phosphate (DAP) fertilizer with 18% nitrogen and 46% P2O5. Uniform 2-4mm granules with excellent hardness and anti-caking treatment for reliable storage and handling. Provides essential phosphorus for root development, flowering, and early crop establishment. Ideal basal fertilizer for all soil types and crop categories.

Nitrogen (N)18% min
P2O546% min
Moisture0.5% max
Particle Size2-4mm (90% min)
AppearanceBrown / dark gray granular
Shelf Life24 months
Packaging50kg / 1000kg PP bags
MOQ1x20GP container (28T)
✅ Factory Direct Price
📦 OEM Packaging Available
🚢 FOB / CIF / CFR
💳 T/T, L/C Accepted

Product Information

ParameterSpecificationTest Method
Total Nitrogen (N)18.0% minISO 5315 (Kjeldahl)
Phosphorus (P2O5)46.0% minISO 6598 (Spectrophotometry)
Moisture (H2O)0.5% maxISO 760
Free Acid (as P2O5)0.2% maxTitration
Particle Size (2-4mm)90% minISO 8397
Crushing Strength30N minISO 8337
AppearanceBrown / dark gray granularVisual
Bulk Density950-1050 kg/m3ISO 7837
Shelf Life24 months (sealed, dry storage)-

Product Features

High Phosphorus Analysis

46% P2O5 content delivers the highest phosphorus concentration among common phosphate fertilizers, maximizing nutrient per unit shipped.

Dual Nutrient Supply

Combined nitrogen (18%) and phosphorus (46%) in one granule simplifies application and reduces labor and equipment costs.

Superior Granule Hardness

Hard, uniform 2-4mm granules (30N crushing strength) resist breakage and caking, ensuring smooth mechanical spreading and long-term storage.

Rapid Phosphorus Availability

Water-soluble P2O5 dissolves quickly in soil solution, providing immediately available phosphorus for root uptake during critical early growth stages.

Soil-Friendly pH

Slightly alkaline reaction (pH 7.5-8.0) makes DAP particularly effective on acidic and neutral soils, improving phosphorus availability.

Export-Grade Quality

Manufactured to ISO 9001 standards with SGS pre-shipment inspection. Full COA provided with every shipment.

Application Scope

DAP is the world's most widely used phosphate fertilizer, suitable for all soil types and crop categories as a basal phosphorus source.

🌾

Cereals & Grains

Wheat, corn, rice, barley. Apply 150-300 kg/HA as basal dressing before planting.

🍇

Fruits & Vegetables

Tomato, potato, onion, citrus. 100-250 kg/HA banded at planting for strong root establishment.

🌱

Cash Crops

Cotton, sugarcane, soybean, oilseed rape. 200-350 kg/HA as basal phosphorus source.

Recommended Application Method

Crop StageApplication RateMethod
Basal (pre-planting)100% of total P, banded 5-7cm below seedSoil placement below/side of seed row
Top dressingNot recommended (P immobile in soil)Surface broadcast only if P deficiency detected
Starter fertilizer50-100 kg/HA in seed rowBanded placement at planting (avoid direct seed contact)

Mixing Precautions & Compatibility

⚠ Important Mixing Restrictions
  • Do NOT mix DAP with alkaline materials (lime, calcium carbonate): Alkaline conditions cause ammonia volatilization from DAP, reducing nitrogen efficiency and potentially causing crop burn.
  • Do NOT mix DAP with basic slag or cement: Strong alkaline reactions release ammonia gas and reduce both nitrogen and phosphorus availability.
  • DAP + urea: Compatible for immediate application. Reduces ammonia loss compared to urea alone. Apply within 24 hours of mixing.
  • DAP + MOP (potassium chloride): Compatible. Excellent basal NPK blend. Can be stored together if kept dry.
  • DAP + ammonium sulfate: Compatible. Suitable for sulfur-deficient and high-pH soils.
  • DAP + superphosphate (SSP/TSP): Compatible. Mixtures should be applied promptly to prevent reversion of water-soluble phosphorus.
  • Storage: Keep in sealed, dry conditions. DAP is mildly hygroscopic. Avoid temperatures above 30°C and high humidity to prevent caking.

Customized Formula Service

We offer full OEM customization for phosphate fertilizer products. Whether you need a specific granule size, private-label branding, or a custom NP/NPK blend, our technical team can deliver to your exact specifications.

🧪
Custom NP/NPK Ratios

Blend DAP with nitrogen, potassium, and micronutrient sources to create formulations tailored to your soil test results.

🎯
Custom Granule Size

Available in 2-4mm (standard granular) and 4-6mm (large granular) sizes for different application equipment.

🎨
Custom Granule Color

Natural brown, gray, or custom-colored granules for brand differentiation and product identification.

📦
OEM Branding & Labeling

Your logo, design, and multilingual labels on bags. Full private-label service with custom artwork.

Learn More About Custom Service →

Packaging & Shipping

📦

50kg PP Bag

Standard export packaging. Woven PP with inner PE liner. Moisture-proof, UV-resistant. 560 bags per 20GP.

🛤

1000kg Jumbo Bag

Big bag / FIBC for bulk handling. 28 bags per 20GP. Pallet or stretch-wrap base.

📦

25kg PP Bag

Woven PP bag with inner PE liner. 1,120 bags per 20GP for retail-ready packaging.

🛤

OEM Custom

Custom bag sizes, branding, and labeling. Minimum 100T for custom packaging.

Container Loading Capacity

Container TypeBag SizeBags/ContainerTotal Tonnage
20GP50kg560 bags28 tons
20GP1000kg jumbo28 bags28 tons
40HQ50kg1,160 bags58 tons
40HQ1000kg jumbo58 bags58 tons

Shipping & Storage Notes

  • Sea freight: FOB Qingdao, CIF any port, CFR destination. Typical transit: 7-45 days depending on destination.
  • Store in dry, ventilated warehouse. Keep away from moisture, rain, and direct sunlight.
  • Shelf life: 24 months in sealed original packaging under proper storage conditions.
  • Container loaded with moisture absorbers and cargo securing for safe ocean transport.
  • Full export documentation: COA, Packing List, Commercial Invoice, Bill of Lading, Certificate of Origin.

Request Price Quote

Fill out the form below to receive a detailed quotation within 24 hours. Include your target quantity, destination port, and any customization requirements.

Thank you! Your inquiry has been received. Our sales team will contact you within 24 hours.
This field is required.
This field is required.
Please enter a valid email.

Related Products

💬 📝 Inquiry