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DAP18-46-0

DAP18-46-0
DAP 18-46-0 (Diammonium Phosphate) is a high-concentration water-soluble nitrogen-phosphorus compound fertilizer, with fixed nutrient ratio of 18% total nitrogen (N), 46% available phosphorus (P₂O₅) and 0% potassium (K₂O). It appears as grayish-white or light yellow spherical granules, featuring high nutrient content, rapid dissolution and easy crop absorption. Suitable for all soil types and various crops in seedling and flowering stages, it supplies dual N-P nutrition, promotes root development and flower bud differentiation, and is a core base fertilizer for global agricultural production with stable quality and wide applicability.

Product Details

Basic Product Specifications

IndexIndustrial/Agricultural Standard
Nutrient ContentTotal N ≥18%, Available P₂O₅ ≥46%, K₂O=0
Chemical Formula(NH₄)₂HPO₄
AppearanceGrayish-white/light yellow spherical granules, uniform particle size, no obvious caking
Particle Size2-4mm (agricultural standard, customizable 1-3mm/3-5mm)
Water SolubilityHighly soluble in water (fully dissolved at 20℃, no precipitation)
pH Value7.8-8.2 (1% aqueous solution, weakly alkaline)
Moisture Content≤0.2% (low moisture, anti-caking)
Compaction Resistance≥12N (good mechanical strength, no easy breakage)



Core Functions & Nutritional Value

  1. High-Efficiency N-P Dual Supply: 18% ammonium nitrogen is easily absorbed by crop roots, meeting the nitrogen demand for vegetative growth; 46% high-content available phosphorus is the core nutrient for root development, flower bud differentiation and fruit setting, solving the key P deficiency problem of crops.
  2. Promote Root System Establishment: Stimulates the growth of crop primary and lateral roots, enhances root activity and water-nutrient absorption capacity, especially suitable for seedling stage, improving crop emergence rate and seedling uniformity.
  3. Boost Reproductive Growth: Promotes flower bud differentiation and healthy flowering, increases fruit setting rate, and lays a solid foundation for high yield in grain, fruit and vegetable crops; accelerates tillering of cereal crops such as wheat and rice.
  4. Soil Adaptability & Nutrient Activation: Weakly alkaline property can alleviate soil acidification, activate insoluble phosphorus in soil, and improve phosphorus utilization rate; suitable for acidic, neutral and slightly alkaline soils (the best phosphorus fertilizer for acidic soils).


Main Applications

Suitable Crops

All agricultural crops, especially phosphorus-demanding crops in seedling/flowering stage:
  • Field Crops: Wheat, rice, corn, cotton, rapeseed (promote tillering and seedling hardening)
  • Fruits & Vegetables: Apple, citrus, grape, tomato, cucumber, strawberry (promote root development and flower setting)
  • Economic Crops: Tea, tobacco, sugarcane, beet, flowers (improve seedling quality and commodity value)
  • Cash Crops: Soybean, peanut, potato (enhance root tuber formation and nutrient accumulation)


Application Methods & Dosage (per mu)

  1. Base Fertilizer (Main Application): 20-30kg, mixed evenly with soil before sowing/transplanting, or applied by ditching and covering with soil; the optimal application method for dry land and paddy field, providing basic N-P nutrition for the whole growth cycle.
  2. Seedling Fertilizer/Top Dressing: 5-10kg, applied at crop seedling stage and early flowering stage; for fruit trees, apply in annular ditch at the crown projection, suitable for mechanical spreading and manual application.
  3. Seed Dressing/Seedling Dipping Root: Dilute into appropriate concentration, mix with seeds or dip seedling roots before sowing/transplanting, improve seed germination rate and seedling survival rate (no direct contact with seeds in high concentration).
  4. Water-Fertilizer Integration: Dissolve completely in water, apply via drip irrigation/sprinkler irrigation, suitable for greenhouse and soilless culture, realizing efficient nutrient absorption with no waste.
  5. Mix Application: Can be mixed with potassium fertilizer, medium/trace element fertilizers (avoid mixing with acidic fertilizers such as ammonium sulfate, urea) to realize balanced N-P-K fertilization.

Industrial Classification & Attribute

DAP 18-46-0 is a typical agrochemical (high-concentration nitrogen-phosphorus compound fertilizer), belonging to fine inorganic chemical products in the chemical industry. It is produced by the industrial reaction of phosphoric acid and liquid ammonia, with mature large-scale production technology and strict quality control. As the most widely used high-concentration phosphorus fertilizer in the world, it is the core product of the phosphate fertilizer industry, and also used as a raw material for compound fertilizer production and a feed additive (food grade), with important agricultural and economic value.


Product Application

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Company Profile

Shandong Nongsheng Fertilizer Co., Ltd. adheres to the "co-prosperity" concept of "win-win development with customers", continuously develops products that meet customer needs, improves process quality, establishes a cooperative mechanism with chemical research institutions and universities, links customer needs, provides product customization services, provides customers with a variety of choices, and reduces supply risks and procurement costs.

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Our products are of high quality and low price, and our cooperative customers recognize our products. And as long as the cooperative customers have maintained long-term cooperative relations.

Certificate Of Honor

For a long time, we have been focusing on the research, development and management of crop fertilizers and their surrounding industrial chains. Our customers are all over the country, and in Southeast Asia, Europe, the Middle East, Africa and other regions. With stable quality and high-quality services, our company has become a strong supplier and exporter of fertilizer and related products in China.

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FAQ

Q: Are you a factory or a trading company?

A: We are a company integrating manufacturing and trading.

Q: Can you provide samples for testing before mass production?

A: Of course, we can send you samples for free, and we also attach COA, but for the sample shipping fee, our company can't afford it!

Q: How can I get an accurate quotation?

A: Please tell us the accurate product specifications, particle size, color, and your use, and we will provide you with an accurate quotation.

Q: Can you provide COA?

A: Of course, we can provide it, but only ordinary products, if you want an accurate COA, we need to produce samples. After testing, provide an accurate COA.

Q: Can you accept OEM (special specifications, sizes)?

A: Of course, we can customize according to different requirements of customers, not only that, we can also design packaging according to your requirements.

Q: If I know the use, but don't know the exact specifications, can you provide an exact quotation?

A: Of course, we will recommend products according to your usage, please trust us.

Q: Can I visit your factory before placing a large order?

A: Of course. Welcome at any time.
Q: Can you customize the packaging?

A: Of course, we can customize the packaging according to the pictures provided by customers.
Q:What is the payment terms of your company?
A: T/T,L/C at sight,Western Union,Paypal.

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