High Efficiency DAP (Diammonium Phosphate) is a controlled release phosphorus fertilizer developed for modern agriculture. Our high efficiency DAP uses advanced gelatin/PVA composite coating technology to achieve a controlled nutrient release period of 30-120 days. It helps reduce nutrient loss, improve fertilizer utilization efficiency, and provide a stable nutrient supply for crops.
Our High Efficiency DAP adopts gelatin/PVA composite coating technology to create a semi-permeable protective layer around each fertilizer granule. Soil moisture enters through microscopic pores, allowing nutrients to dissolve and release gradually. With an adjustable release period of 30 to 120 days, the fertilizer supply better matches crop growth cycles and reduces the frequency of top-dressing applications.
The fertilizer granules are controlled within 2-4mm with good hardness and excellent storage stability. The uniform particle size enables even fertilizer distribution during manual or mechanical application.
With moisture content ≤2.0%, the product effectively reduces caking problems during storage and transportation, making it suitable for long-distance export and warehouse storage.
With uniform granule size, low moisture content and good flowability, High Efficiency DAP is suitable for mechanical spreading, broadcasting and furrow application. It can be used for various crops including rice, wheat, corn, vegetables, fruit trees and other commercial crops.
AOLANSU High Efficiency DAP is produced using specialized fertilizer processing equipment and controlled coating technology:
A biodegradable gelatin/PVA composite coating is applied evenly to fertilizer granules. The coating thickness can be adjusted according to different crop requirements and release periods, helping achieve stable nutrient release.
Each production batch is inspected for nutrient content, moisture, particle size and coating performance before shipment to ensure consistent product quality.
To ensure reliable fertilizer performance, AOLANSU implements a complete quality control system covering raw materials, production processes and finished products. Each batch of High Efficiency DAP undergoes professional inspection before delivery.
We analyze nitrogen and phosphorus content to ensure that each batch meets the required fertilizer specifications and maintains stable nutrient performance.
The coating layer is inspected for uniformity and integrity to ensure consistent controlled-release performance during crop cultivation.
Particle size, moisture content, hardness and flowability are tested to ensure the fertilizer is suitable for storage, transportation and mechanized agricultural application.
| Product Name | High Efficiency DAP (Diammonium Phosphate) |
| CAS No. | 7783-28-0 |
| Molecular Formula | (NH₄)₂HPO₄ |
| Appearance | White/light gray coated granular fertilizer, 2-4mm |
| Total Nutrient (N+P₂O₅) | ≥64% |
| Total Nitrogen (N) | ≥18% |
| Available Phosphorus (P₂O₅) | ≥46% |
| Water-Soluble Phosphorus | ≥90% |
| Moisture Content | ≤2.0% |
| pH Value | 7.5-8.5 |
| Release Period | 30-120 days (adjustable) |
| Coating Material | Gelatin/PVA composite biodegradable coating |
| Package | 50kg PP woven bag with PE inner lining, bulk packaging available |
| Storage Condition | Dry, ventilated and cool warehouse, protected from moisture |
A1: The main difference is the nutrient release speed. Conventional DAP dissolves quickly after application, which may result in nutrient loss through leaching or fixation. High Efficiency DAP uses gelatin/PVA coating technology to control nutrient release over 30-120 days, providing a more stable nitrogen and phosphorus supply for crops.
A2: High Efficiency DAP is suitable for a wide range of crops, including rice, wheat, corn, vegetables, fruit trees and other commercial crops. It is especially suitable for large-scale farming operations where reducing fertilizer application frequency and improving nutrient management efficiency are important.
A3: High Efficiency DAP should be stored in a dry, ventilated and cool warehouse away from moisture and incompatible materials. Proper storage helps maintain granule quality and ensures stable fertilizer performance during application.
A4: High Efficiency DAP can replace conventional DAP in many agricultural applications. However, the recommended application method depends on crop type, soil condition, climate and local farming practices.
AOLANSU supports trial orders and bulk procurement requirements. We provide flexible supply solutions for agricultural distributors, fertilizer wholesalers and large farming projects.
We provide necessary export documents including MSDS, COA and Certificate of Origin to support smooth international shipment and customs clearance.
Our agricultural team provides product guidance and customized fertilizer recommendations according to different crops, soil conditions and application requirements.
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(North of Dongwei Group, West) Houwei Village, Changshan Town, Zouping City, Binzhou, Shandong Province, China
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