Slow-Release Nitrogen Fertilizer for B2B Fertilizer Manufacturing
Isobutylidene Diurea (IBDU) is a premium urea-aldehyde slow-release nitrogen fertilizer designed for high-performance granular fertilizers, specialty turf formulations, horticultural media, and agricultural applications requiring a controlled, progressive nitrogen supply.
Product Snapshot
|
Property |
Details |
|
Product Name |
Isobutylidene Diurea |
|
Abbreviation |
IBDU |
|
Product Type |
Slow-Release Nitrogen Fertilizer |
|
Fertilizer Group |
Urea-Aldehyde Nitrogen Fertilizer |
|
Main Nutrient |
Nitrogen (N) |
|
Physical Form |
Solid Granules / Powder |
|
Typical Nitrogen Content |
Approximately 31% N |
|
Release Mechanism |
Hydrolysis (moisture dependent) |
|
Standard Reference |
ISO 19670:2017 |
|
Main Applications |
Bulk blending, compound NPK granulation, professional turfgrass, floriculture, and specialty horticultural formulations |
Technical Specification
|
Parameter |
Specification Target / Range |
Test Method |
|
Total Nitrogen (N) |
Min. 31.0% |
ISO 19670 / AOAC |
|
IBDU Nitrogen |
Min. 28.0% |
ISO 19670 |
|
Water-Insoluble Nitrogen (WIN) |
Min. 26.0% |
ISO 19670 |
|
Urea Nitrogen |
Max. 1.5% |
ISO 19670 |
|
Moisture Content |
Max. 1.0% |
Karl Fischer / Oven dry |
|
Particle Size Range |
0.5 - 1.0 mm / 1.0 - 3.0 mm / Custom |
Screening |
|
Fine Particles (<0.5mm) |
Max. 2.0% |
Sieve Analysis |
|
Appearance |
White to off-white granules / powder |
Visual |
|
Bulk Density |
0.60 - 0.75 g/cm3 |
Standard volumeter |
|
PH (10% aqueous slurry) |
5.5 - 7.5 |
PH Meter |
|
Packaging Options |
25 kg bags, 500 kg / 1000 kg Jumbo Bags |
Standard B2B Export Packaging |
What Makes IBDU Different from Conventional Nitrogen?
Key Performance Drivers:
- Particle Size: Smaller particles present a higher surface area and dissolve faster under equivalent conditions; larger particles extend nutrient availability over a longer duration.
- Moisture Availability: Water contact is required to drive the hydrolysis process.
- Soil Conditions & Temperature: Acidic conditions and warmer temperatures moderately accelerate hydrolysis to match crop growth cycles.
IBDU Vs. Conventional Soluble Nitrogen
|
Feature / Metric |
IBDU (Slow-Release) |
Conventional Soluble Nitrogen |
|
Water Solubility |
Low |
High |
|
Release Mechanism |
Chemical Hydrolysis |
Rapid Dissolution |
|
Nitrogen Loss Risk |
Low (Minimal leaching/volatilization) |
High (Prone to leaching & run-off) |
|
Particle Size Importance |
High (Directly influences release rate) |
Low (Dissolves quickly regardless) |
|
Primary Sourcing Concern |
Batch consistency & particle distribution |
Unit price & total N percentage |
Application Selection Guide
Bulk Blending: Match the particle size index (SGN) and bulk density with other blend components to reduce granule segregation during handling and transit.
Granular Fertilizer Production: Low moisture content and high physical integrity prevent caking and support stability during compound NPK granulation.
Professional Turf & Golf Courses: Uniform fine granules support even spreader distribution, prevent speckling, and eliminate fertilizer burn.
Horticulture & Greenhouses: Provides a low salt index and steady nitrogen delivery for container media and sensitive nursery stock.
Quality Control & Traceability
Our manufacturing and quality assurance workflows conform to ISO 19670:2017 standards across every batch:
Raw Material Inspection: Verification of incoming urea and reactant quality against defined specifications.
Synthesis & Drying: Precise control over reaction parameters and fluid-bed drying to ensure moisture remains below 1.0%.
Particle Screening: Automated classification to maintain strict size distribution limits.
Batch Release & QA Documenting: Every lot is issued a batch-specific Certificate of Analysis (COA) prior to dispatch.
FAQ
Q: How does IBDU release nitrogen compared to microbial-dependent slow-release fertilizers?
A: IBDU relies primarily on chemical hydrolysis rather than soil microbial activity. This makes its nitrogen release rate more predictable across varying soil biological conditions, as long as moisture is present.
Q: Does IBDU have a fixed release duration (e.g., 90 days)?
A: No. Release speed depends on particle size, moisture level, temperature, and soil pH. A specific release timeline should only be stated when verified under standardized lab testing or specific field trial conditions.
Q: How do I prevent segregation when using IBDU in bulk blends?
A: To avoid segregation during transport, request an IBDU particle size distribution (SGN) and bulk density that closely matches your other raw materials (such as Potash or MAP/DAP).
Q: What packaging options are available to protect IBDU from moisture during long-distance shipping?
A: IBDU is supplied in multi-layer 25 kg PE/PP moisture-proof bags or heavy-duty 500 kg / 1000 kg bulk bags (Jumbo Bags), with optional palletization and stretch-wrapping for international container freight.
Q: Can we request a lab sample and batch COA prior to placing a bulk order?
A: Yes. We encourage technical sample evaluation and batch COA review during formulation development or supplier qualification.
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