Polymer Coated Urea
Polymer Coated Urea (PCU)
| Product: | Slow Controlled Release Fertilizers (SRF) |
| Category: | UREA Series – Nitrogen Fertilizer |
| Ingredients: | Granular urea, polyurethane, polyol |
| Appearance: | Granular |
| Density: | 1.32 g/m3 |
| Customization: | Available |
| Place of Origin: | Shangdong,China |
| MOQ : | 10T (Sample free) |
| Certificate: | ISO 22241-1, DIN 70070 standards |
Polymer Coated Urea Description
The polymer coated urea (PCU) produced by Risso Fertilizer Factory has national patent technology in China, and the product meets the Q/DYC01-2015 standard.
Polymer coated urea (PCU) consists of a core layer and a coating layer. The core layer is granular urea, and the coating layer is two layers. The inner layer is a shrink layer, and the outer layer includes polyurethane and raw materials polymerized by polyols and oil substances with co-bonded double bonds.
Polymer coated urea (PCU) is a safer and more efficient nitrogen source. Its release rate is mainly determined by temperature and moisture through the micropores in the coating, which is usually called temperature-controlled diffusion and osmotic pressure. It can also be called a smart release nitrogen fertilizer that can provide nutrients to your plants throughout the season. The shelf life of PCU urea is 3-12 months.
PCU UREA Advantages
- High Particle Uniformity
Risso employs an advanced dual screening system to carefully select urea granules sized between 2.0 mm and 4.75 mm. This ensures exceptional particle uniformity, resulting in a more consistent and stable controlled-release performance. - Anti-Floating Treatment Available
For applications in paddy fields, Risso offers an efficient and eco-friendly anti-floating treatment. This technology effectively reduces fertilizer floatation rates from 15% down to 0%, ensuring optimal nutrient retention and minimizing waste. - Extended Controlled Release Period
While standard resin-coated urea typically releases nitrogen over approximately 2 months, Risso’s optimized polymer formulation allows for an extended controlled release period of 3 to 6 months at the same coating thickness, providing sustained nutrient availability tailored to crop growth cycles.
Products list
| Type | Longevity at 25℃ (Soil Temp.) | Initial Release Rate | Particle Size |
| 45-0-0 | 30 days | Max 12% | 2.0-4.75 mm Min 99% |
| 44-0-0 | 60 days | Max 5% | 2.0-4.75 mm Min 99% |
| 44-0-0 | 90 days | Max 5% | 2.0-4.75 mm Min 99% |
Product analysis
| 44-0-0 | 45-0-0 | |
| Total Nitrogen | 44% | 45% |
| Urea Nitrogen | 44% | 45% |
Longevity
| Longevity of different products | ||||
| 45-0-0（30 days） | 44-0-0（60 days） | 44-0-0（90 days） | ||
| Soil Temp. | 15°C | 45 days | 90 days | 120 days |
| 25°C | 30 days | 60 days | 90 days | |
| 30°C | 15 days | 45 days | 60 days | |
Application Guidelines
Polymer Coated Urea is typically applied as a base fertilizer or side dressing. Recommended application rates vary depending on crop type and soil conditions. Consult agronomic advice for precise dosage and timing.
Ideal for slow-release nitrogen needs during the entire growing season.
Compatible with drip irrigation and fertigation systems.
Reduces the frequency of fertilizer applications, saving labor and costs.
Benefits of Using Risso Polymer Coated Urea
Maximized Nitrogen Efficiency: Reduces fertilizer waste and improves nutrient uptake.
Consistent Crop Nutrition: Provides continuous nitrogen supply matching plant growth demands.
Higher Yields and Quality: Supports vigorous growth, leading to improved crop quality and output.
Sustainable Farming: Limits nitrogen pollution and enhances soil health.
Cost-Effective: Fewer applications mean lower labor and operational expenses.
Packaging & Shipping
| Packaging Type | Weight Options |
|---|---|
| Woven PP Bags | 9.9kg, 50 kg |
| Jumbo Bags | 1000 kg (1 MT) |
| Bulk Delivery | Available upon request |
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Why Choose Risso Polymer Coated Urea?
Risso Polymer Coated Urea (PCU) provides controlled, steady nitrogen release for better nutrient use and higher crop yields. Our advanced coating ensures uniform particles and reduces nitrogen loss from volatilization and leaching.
With optional anti-floating treatment, it works well even in paddy fields. The release period can last up to 6 months, cutting down the need for multiple applications and saving labor costs.
Risso PCU is made with strict quality control and eco-friendly materials, helping you improve productivity while supporting sustainable farming.
