Monoammonium Phosphate (MAP 11-52-0) – High Phosphorus Starter Fertilizer

Monoammonium Phosphate (MAP) is a highly efficient source of phosphorus and nitrogen, specially formulated for early crop establishment. With a nutrient ratio of 11-52-0, MAP is a key component in starter fertilizers for cereals, legumes, fruits, and vegetables.

MAP has a low nitrogen content in ammonium form (NH₄⁺), which helps stabilize phosphorus in the root zone and minimizes leaching. Its high phosphorus concentration boosts seedling vigor, flowering, and early root expansion — critical for high-yield farming.

At Cavin Resource, we supply granular MAP produced under ISO-certified processes, ready for global shipment with full export documentation. Our MAP is compatible with most fertilizers and blends easily into NPK formulations.

⚙️ Production Method

Reaction of Ammonia with Phosphoric Acid

• MAP is manufactured by the direct reaction of ammonia (NH₃) with phosphoric acid (H₃PO₄).

• The product crystallizes as (NH₄)H₂PO₄, forming free-flowing granules upon cooling.

• The final fertilizer is low in heavy metals and has a neutral to slightly acidic pH.

🏭 Use Cases by Industry

🌾 Agricultural Use

• Starter fertilizer for maize, wheat, soybean, rice, and pulses

• Used in row and band application, especially in acidic soils

• Effective for transplant crops, greenhouse farming, and vegetable gardens

🧪 Industrial Use

• Used in fireproofing compounds and fire extinguishing powders

• Component in yeast and fermentation nutrient mixes

• Base for NPK compound production

✅ Benefits of Monoammonium Phosphate (MAP)

• 🌱 High Phosphorus Concentration: 52% P₂O₅ fully water-soluble for immediate availability

• ⚖️ Acidic pH Improves Nutrient Uptake: Especially effective in neutral to alkaline soils

• 🚜 Excellent Starter Fertilizer: Promotes early growth and root expansion

• 🔄 Easily Blendable: Compatible with most fertilizers and NPK programs

• 📦 Non-Hygroscopic Granules: Easy to store and apply in all climates

• 🌍 Sustainable Performance: Improves fertilizer use efficiency and crop uniformity

📦 Packaging Options

• 25kg and 50kg woven polypropylene bags with liner

• 1000kg FIBC jumbo bags for export

• Export-grade palletizing and stretch-wrapping

• MSDS, COA, and SGS third-party inspection available

❓ Frequently Asked Questions (FAQs)

1. What makes MAP better than DAP in some soils?

Answer:
MAP has a lower nitrogen content and an acidic pH, making it ideal for alkaline soils. DAP is more alkaline and may cause ammonium volatilization in high-pH conditions.

2. How should MAP be applied?

Answer:
Apply directly to the soil at planting or as a banded starter fertilizer. It can also be blended into dry NPK mixes or applied through fertigation in soluble form.

3. Is MAP safe for young seedlings?

Answer:
Yes. MAP’s low salt index makes it safer for direct root-zone applications, even for sensitive crops and young plants.

4. Does Cavin Resource ship internationally?

Answer:
Yes. We offer international logistics, documentation, SGS inspection, and custom packaging for global clients.

📚 Credible Sources & References

• FAO – Fertilizer Manual

• International Plant Nutrition Institute (IPNI) – MAP Fact Sheet

• PubChem – Monoammonium Phosphate

• ICIS Fertilizer Pricing