High Quality DAP Fertilizer 18-46-0 / Diammonium Phosphate Fertilizer For Sale

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Diammonium phosphate (DAP) is a widely used nitrogen-phosphorus fertilizer that provides essential nutrients for plant growth. It is one of the most popular types of phosphorus fertilizers and is favored for its high nutrient content and versatility in agricultural applications.

Chemical Properties

• Chemical Formula: (NH₄)₂HPO₄
• Molar Mass: 132.06 g/mol
• Nitrogen Content: 18% nitrogen (N)
• Phosphorus Content: 46% phosphorus pentoxide (P₂O₅)
• Appearance: White, greyish, or brown granular solid
• Solubility: Highly soluble in water
• pH in Solution: Alkaline (around 7.5 to 8.0 when dissolved in water)

Production

Diammonium phosphate is produced by reacting ammonia (NH₃) with phosphoric acid (H₃PO₄):

H₃PO₄+2NH₃→(NH4)2HPO4\text{H₃PO₄} + 2\text{NH₃} \rightarrow (NH₄)₂HPO₄H₃PO₄+2NH₃→(NH4​)2​HPO4​

This process results in a dry, granulated product that is easy to handle, transport, and store. The high solubility of DAP makes it an excellent source of phosphorus and nitrogen for plants.

Uses

1. Agriculture

DAP is primarily used as a fertilizer due to its high nutrient content of nitrogen and phosphorus, which are critical for plant growth and development:

• Nitrogen (N): Nitrogen is a key component of amino acids, proteins, and chlorophyll, which are essential for photosynthesis and plant growth. The ammonium nitrogen in DAP is readily absorbed by plant roots.

• Phosphorus (P₂O₅): Phosphorus is vital for root development, energy transfer within the plant (as ATP), and flowering and fruiting processes. DAP provides a highly available source of phosphorus that can be quickly taken up by plants.

Key Benefits in Agriculture:

• Early Root Development: DAP’s phosphorus component promotes strong root growth, making it an excellent choice for early crop establishment. This is especially important for crops like cereals, legumes, and vegetables.

• Balanced Nutrient Supply: The combination of nitrogen and phosphorus in DAP helps balance the nutrient needs of crops during critical growth stages, particularly in early growth and during flowering.

• Neutralizes Soil Acidity: When DAP dissolves in soil, it initially causes an alkaline reaction, temporarily raising the soil pH around the granules. This can be beneficial in acidic soils, though overuse may eventually cause an imbalance if not properly managed.

2. Animal Feed Additive

• Phosphorus Source: DAP is sometimes added to animal feed as a phosphorus source for livestock. Phosphorus is an essential nutrient for animal growth and bone development.

3. Fire Retardant

• Wildfire Suppression: DAP is used as a component in fire retardants for fighting forest fires. When applied to vegetation, it reduces the flammability of organic material by creating a barrier that slows the combustion process.

Advantages of Diammonium Phosphate

1. High Nutrient Content: DAP provides a concentrated source of both nitrogen and phosphorus, making it an efficient fertilizer for crops requiring these essential nutrients.

2. Quick Nutrient Availability: The water-soluble nature of DAP ensures that both nitrogen and phosphorus are readily available to plants soon after application, promoting rapid growth and development.

3. Improves Crop Yields: The balanced nutrient profile of DAP can enhance crop yields, particularly for crops that benefit from early root development and steady nitrogen supply, such as grains, fruits, and vegetables.

4. Wide Applicability: DAP is suitable for use in a variety of soils and climates. It can be used for both row crops and horticultural applications, and it is often applied at planting or during the growing season.

Application Methods

• Broadcast Application: DAP can be spread over the soil surface and incorporated into the soil using tillage equipment. This method is often used for field crops like corn, wheat, and soybeans.

• Banding: In banding applications, DAP is applied in concentrated bands near the seed or plant roots, ensuring that the nutrients are available where they are needed most.

• Fertigation: DAP can also be dissolved in water and applied through irrigation systems (fertigation), providing a steady supply of nutrients to crops.

Safety Considerations

1. Handling

While DAP is relatively safe compared to many other fertilizers, it is still important to handle it with care:

• Skin and Eye Irritation: Direct contact with DAP can cause irritation to the skin and eyes. Wearing gloves and eye protection is recommended when handling large quantities.

• Inhalation: Dust from DAP can cause respiratory irritation if inhaled. It is advisable to use masks or respirators in dusty environments.

2. Environmental Impact

• Runoff and Leaching: Like other fertilizers, improper use of DAP can lead to nutrient runoff, particularly phosphorus, which can contribute to water pollution and eutrophication in nearby water bodies. Over-application of DAP can also lead to nitrogen leaching, especially in sandy soils.

• Soil pH Impact: DAP temporarily raises the pH of the soil near the granules upon dissolution. While this can be beneficial in acidic soils, overuse in neutral or alkaline soils can lead to nutrient imbalances, reducing the availability of certain micronutrients like zinc and iron.

Comparison with Other Fertilizers

1. DAP vs. Monoammonium Phosphate (MAP)

• Nitrogen and Phosphorus Content: DAP has a higher nitrogen content (18%) compared to MAP (11%). However, MAP contains more phosphorus (48-50% P₂O₅) than DAP (46% P₂O₅). MAP is often preferred in soils where the nitrogen-to-phosphorus ratio needs to be lower.

• Soil pH Impact: While DAP tends to increase the soil pH in the short term, MAP has a more neutral to slightly acidic effect, making it better for use in soils that are already alkaline.

2. DAP vs. Urea

• Nitrogen Content: Urea (46% nitrogen) is the most concentrated nitrogen fertilizer, whereas DAP contains both nitrogen (18%) and phosphorus (46%). Urea is a better choice when only nitrogen supplementation is needed.

• Soil Impact: Urea can acidify the soil over time as it is converted to ammonium and nitrate, while DAP has an initial alkalizing effect.

Storage and Handling

• Storage Conditions: DAP should be stored in a cool, dry place to avoid moisture absorption, which can cause caking or degradation. Proper ventilation is needed to prevent humidity buildup.

• Handling Precautions: When handling DAP, use protective gloves, eyewear, and masks to avoid skin contact, inhalation of dust, or eye irritation.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Fertilizers and Chemicals .

4. why should you buy from us not from other suppliers?
We offer good quality products at affordable prices