Water Soluble NPK 13-5-28 Fertilizer Granules Sop Formula for Hydroponic Plants - Direct Supply

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Product Description

📊 Basic Information
Model NO.
13-5-28
EINECS
56632-41
Certification
ISO9001, ISO, SGS
Application
Vegetables, Flowers, Fruit, Grain Crops
Appearance
Granular
Chemical Character
Chemical Neutral
Release Type
Quick
Manufacturing Method
Compound Fertilizer
Type
High Nitrogen & Phosphorus
Water Solubility
Fully Water-Soluble
Production Capacity
400,000 ton/Year
🌱 Product Description

Nitrate-Sulfur-Based Compound Fertilizer 13-5-28 (Potassium Sulfate)

Specification Item Details
AppearanceWhite grey original color
Nitrogen content(N)13%
Nitrate Nitrogen content(NO3-)5.2%
Phosphorus Content (P2O5)5%
Kalium Content (K2O)28%
Total content (N+P+K)46%
Particle size range1-4mm >= 90%
GranulationHigh tower process

💎 Key Advantages

  • Fast & Sustained Nutrition: 5% nitrate nitrogen delivers instant absorption, while 8% ammonium nitrogen ensures prolonged supply.
  • Sulfur Enrichment: Enhances protein synthesis, improves fruit sweetness, color, and shelf life.
  • Chloride-Free Safety: Potassium sulfate formula, perfect for chlorine-sensitive crops like strawberries and grapes.
  • High Potassium Boost: 28% K2O strengthens disease resistance and promotes fruit expansion.
📅 Recommended Usage & Dosage
Crop Type Dosage Application Timing
Vegetables (tomato, cucumber)30-40kg/muBase + topdressing during expansion
Fruit trees (citrus, grape)1.5-2kg/treeBudding and expansion stage
Cash crops (tobacco, tea)25-35kg/muSplit into 2-3 doses
Field crops (corn, wheat)20-30kg/muPre-sowing base application
📦 Packaging & Shipping

Standard packaging available in 25kg, 50kg, and 1000kg. Customization options are supported.

🏭 Factory & Exhibition
❓ FAQ
How can I get samples for a product quality test?
Yes, we can provide less than 1kg sample for free of charge. Please contact us to arrange the delivery.
What are your price and payment terms?
We typically offer FOB/CIF/CNF price terms. Payment is usually handled via TT or LC.
Can I visit your factory?
Yes, we provide VR links for virtual sightseeing and welcome appointments for field visits to our production base.
What is your main product range?
We mainly produce ammonium nitrate, compound fertilizers (NPK), and synthetic ammonia.
Can I customize the NPK ratio and add trace elements?
Absolutely. We have agricultural experts to provide professional advice and can customize the formula to suit your soil and crop needs.
Is this fertilizer suitable for drip irrigation?
Yes, our high-tower granulation process ensures a porous structure that allows for rapid dissolution, making it ideal for irrigation systems.

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