Liquid Slow-Release Nitrogen Fertilizer
Rapid nitrogen release plus 8–10 weeks of sustained supply, built for drone and foliar application.
- Formulation
- Liquid polymethylene urea (oily resinous)
- Total nitrogen
- 28%; ≥350 g/L
- Release period
- 8–10 weeks
- Application method
- Foliar (drone) & fertigation
- Foliar-safe, low osmotic pressure
- Anti-washoff adhesion
- Batch-tested quality
Key benefits
This product uses polymethylene urea macromolecular long-chain polymer technology to combine rapid nitrogen release with sustained supply for 8–10 weeks. Its ultra-low osmotic pressure ensures foliar safety, while the oily resinous formulation provides exceptional anti-washoff adhesion.
Synchronized sustained release
Short-chain fractions rapidly penetrate plant cell walls for instant nourishment, while long-chain fractions are cleaved progressively by plant enzymes at a rate synchronized with crop growth, securing nitrogen supply for 8–10 weeks and preventing premature senescence.
Anti-evaporation & drone optimization
Resists rapid drying and remains moist on the leaf surface, suppressing evaporation and nutrient crystallization loss. Its low wash-off potential and superior adhesion serve as an anti-drift carrier well suited to drone spraying.
Excellent leaf safety
Ensures excellent leaf safety even under high-dose/low-dilution applications (such as 2× concentration trials), avoiding leaf or root scorching while preventing over-greening and delayed maturity.
Low volatilization & tank-mix compatibility
Its liquid structure demonstrates extremely slow ammonia release compared to raw urea, reducing gaseous loss. It serves as an excellent tank-mix carrier for a broad profile of crop protection chemicals and other fertilizers, substantially saving labor and application costs.
Independently developed polycondensation technology
This product uses independently developed polycondensation technology to synthesize clear liquid polymethylene urea chains. By balancing fractions of urea, monomethylol/methylene urea, methylene diurea, and polymethylurea polymers, it establishes a uniform, highly concentrated liquid formula that bypasses the volatilization, crystallization, and foliar burn vulnerabilities common to traditional nitrogen sources.
Specification
Guaranteed analysis of the liquid formulation.
| Parameter | Specification |
|---|---|
| Total N | 28%; ≥350 g/L |
| Urea nitrogen | 11.5%, 144±10 g/L |
| Slow-release nitrogen | 16.5%, 206±10 g/L |
| pH | 8.0–9.0 |
| Water-insoluble matter content | ≤20 g/L |
| EC at 20℃ | <0.7 mS/cm |
Mode of action
Systemic translocation & dual-phase release
The short-chain organic fractions swiftly penetrate the foliar cuticle layer and cell walls to satisfy immediate nitrogen demand. Concurrently, the macromolecular polymethylene urea chain fraction is stored intra-cellularly and broken down smoothly into micro-units via functional plant enzymes (such as urease pathways), synchronizing nitrogen assimilation with crop vegetative and generative expansion cycles.
Dual intake channels (root & shoot)
Engineered for rapid, direct penetration via foliar spraying, while remaining fully viable for soil root uptake through fertigation, securing both plant nutrient channels.
Extended foliar hydration & volatilization control
Forms a semi-permeable moisturizing film on the leaf surface, suppressing transpirational water loss, maximizing the foliar absorption window, and minimizing gaseous nitrogen loss.
Rhizosphere pH effect
Through slow root absorption and enzymatic hydrolysis of long-chain polymethylene urea, it continuously provides a stable organic nitrogen source to the rhizosphere, indirectly improving the carbon-nitrogen metabolic environment for rhizosphere microorganisms and maintaining the abundance and diversity of beneficial microbial communities.
Agronomic performance
Rooting & germination
The quick-release short-chain fractions rapidly drive primary root differentiation and growth during the seedling stage, promoting early establishment and laying the foundation for high yields throughout the growing season.
Quality and yield optimization
Significantly elevates leaf thickness and SPAD chlorophyll readings. In broadacre wheat and corn trials, it improves resilience to hot, dry seasonal winds, extending the grain-filling window and enhancing spike development to maximize thousand-grain weight. In leafy vegetable (pak choi) trials, the treated group achieved an average SPAD reading of 36.5 at Day 50 post-application (vs. 31.6 for control), showing substantial biomass accumulation and premium marketable yield.
Stress resistance
The 8–10-week sustained release mechanism ensures crops do not experience nutritional gaps or premature senescence during critical mid-to-late growth stages, significantly enhancing resistance against hot/dry winds, cold, and drought.
Soil restoration
Through continuous slow-release organic nitrogen supply, it indirectly improves the carbon-nitrogen metabolic environment of rhizosphere microorganisms, maintaining the abundance and diversity of beneficial microbial communities to assist in improving the biological vitality of continuous-cropped soils.
Request technical documentation
Need full specifications, tank-mix guidance, or Material Safety Data Sheets (MSDS) for our liquid slow-release nitrogen fertilizer? Get in touch with our technical team directly.
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