Huaqiang Chemical Group Stock Co., Ltd.
+8615380400285 sales2@liwei-chem.com

Urea Fertilizer

    • Product Name: Urea Fertilizer
    • Chemical Name (IUPAC): Carbamide
    • CAS No.: 57-13-6
    • Chemical Formula: CO(NH2)2
    • Form/Physical State: Granular/Solid
    • Factroy Site: No.1 Jinping Avenue, Dangyang , Hubei , China
    • Price Inquiry: sales2@liwei-chem.com
    • Manufacturer: Huaqiang Chemical Group Stock Co., Ltd.
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    Specifications

    HS Code

    595485

    Chemical Name Urea
    Formula CO(NH2)2
    Appearance White crystalline solid
    Solubility In Water High
    Application Method Broadcast, top dressing, foliar spray
    Common Uses Nitrogen fertilizer for crops
    Storage Conditions Cool, dry, well-ventilated area
    Hygroscopic Nature Yes
    Ph Of 1 Percent Solution 7.2-7.4
    Melting Point 132.7°C
    Odor Odorless
    Packaging Bags, bulk
    Biodegradability Biodegradable

    As an accredited Urea Fertilizer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 50 kg woven polypropylene bag, labeled "Urea Fertilizer 46%N," featuring safety instructions, manufacturer details, and moisture-resistant inner lining.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Urea Fertilizer involves securely packing 25-27 metric tons in polypropylene bags for efficient shipment.
    Shipping Urea fertilizer is shipped in bulk or bagged form, typically via truck, rail, or sea freight. It should be transported in dry, well-ventilated conditions to prevent moisture absorption and caking. Packaging must comply with safety standards, and care is taken to avoid contamination during handling and transit.
    Storage Urea fertilizer should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and moisture to prevent caking and decomposition. It must be kept in tightly sealed bags or containers, off the ground, and away from incompatible materials such as strong acids and oxidizers. Proper labeling and protection from physical damage and water contamination are essential.
    Shelf Life Urea fertilizer typically has an indefinite shelf life if stored in a cool, dry place, away from moisture and direct sunlight.
    Application of Urea Fertilizer

    Applications of Urea Fertilizer in Industrial Manufacturing

    Drawing on our direct manufacturing expertise, we supply urea fertilizer for a range of industrial sectors that demand high-quality, consistent feedstock for downstream processes. Below, we detail the authentic application scenarios, focusing on real industry practices, process integration points, and compliance standards.

    1. Compound NPK Fertilizer Blending

    In the large-scale production of compound NPK (nitrogen-phosphorus-potassium) fertilizers, urea continues to serve as the primary nitrogen donor, owing to its high nitrogen content and ease of granulation. Formulators precisely calculate the proportion of urea to achieve specified nutrient ratios, adapting the blend to crop requirements, soil testing data, and regional agricultural regulations. Modern plants utilize advanced computerized batch systems to meter and incorporate urea, ensuring accurate integration alongside phosphates and potash sources. Final blended products include granular and bulk-blended NPK fertilizers customized for specific agricultural zones and cropping cycles.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems for Fertilizer Manufacturing
    • FAO International Code of Conduct for the Sustainable Use and Management of Fertilizers (2021)
    • National fertilizer regulations (e.g., EU Regulation 2019/1009, US EPA 40 CFR Part 180 for ingredients in blending)
    • GB 15063-2020 (China National Standard for Compound Fertilizers)

    Typical usage ratio

    • 10-60% by weight in NPK blends; actual ratio set by the nutritional formulation (e.g., 15-15-15, 20-10-10); adjusted according to the required nitrogen content and other nutrient sources

    Downstream process integration

    • Direct dosing into tumbling mixers or pan granulators after raw material quality check
    • Preconditioned with water or anti-caking agents when mixing with fine phosphates and potash
    • Thermal granulation or compaction after urea blending followed by sieving and cooling

    Final product types

    • Bulk-blend NPK fertilizer granules
    • Controlled-release compound fertilizers for field and horticultural use
    • Water-soluble nutrient blends for fertigation systems
    • Custom prescription blends for precision agriculture

    2. Urea-Formaldehyde Resin Manufacturing

    Producers of engineered wood materials rely on urea as a critical reactant in the synthesis of urea-formaldehyde (UF) resins. Precise stoichiometric control ensures optimized resin performance for particleboard and medium-density fiberboard, with manufacturer programs focusing on minimization of free formaldehyde and enhanced bond strength. The material is introduced into closed reactors where it reacts with formaldehyde under controlled conditions, followed by condensation, neutralization, and spray drying to obtain the final resin powder or syrup. Finished UF resins form the adhesive matrix in wood-based panels for the construction sector.

    Industry compliance standards

    • EN 13986:2004+A1:2015 (Wood-based panels for use in construction)
    • CARB Phase 2 and EPA TSCA Title VI (Formaldehyde Emission Standards for Composite Wood Products, US)
    • ISO 9001:2015 (Quality management in resin manufacturing)
    • GB/T 17657-2013 (Chinese standard for physical and chemical testing of wood-based panels)

    Typical usage ratio

    • Urea to formaldehyde molar ratio typically between 1:1.3 to 1:2 during initial reaction; post-addition of urea (scavenging step) in the range of 10-25% of total urea for emission reduction

    Downstream process integration

    • Feeding into batch or continuous UF resin reactors; initial charge and later scavenging stage
    • In-situ pH and temperature control for proper condensation
    • Inline monitoring to ensure target viscosity and free formaldehyde content

    Final product types

    • Urea-formaldehyde resin powders and syrups
    • Resin adhesives for particleboard, MDF, plywood
    • Imregnating resins for decor papers and laminates

    3. Melamine Production (Melamine-Urea-Formaldehyde Systems)

    Urea serves as the main precursor in the industrial synthesis of melamine, which is subsequently used to create melamine-urea-formaldehyde (MUF) resins for high-performance laminates and coatings. The process requires feeding urea into high-pressure reactors operated at elevated temperatures, where it decomposes to form melamine, with recovery and recirculation systems for unconverted urea and released ammonia. Final process steps integrate the produced melamine with urea and formaldehyde to develop specialized resin formulations, highly valued in the manufacturing of decorative laminates and molded tableware.

    Industry compliance standards

    • ISO 17338:2016 (Melamine used for industrial resins—specifications and test methods)
    • REACH Regulation (EC) No 1907/2006 (chemical registration and safety)
    • ASTM D4314–20 (Standard Specification for Melamine)
    • GB/T 9567-2017 (China standard for melamine quality and test methods)

    Typical usage ratio

    • 100% urea as main process input for melamine synthesis; 2.6-3.2 tons urea per ton of melamine produced, with portion adapted to process yield and recycling technology

    Downstream process integration

    • Continuous or batch addition to high-pressure reactors (urea pyrolysis stage)
    • Ammonia stripping, purification, and recycling for improved sustainability
    • Crystallization and separation of melamine after decomposition

    Final product types

    • Technical grade melamine powder
    • Melamine-urea-formaldehyde resins for laminates and adhesive systems
    • Melamine glazing agents for tableware and molded plastics

    4. Diesel Exhaust Fluid (DEF, AdBlue®) Solutions

    Urea’s use in diesel exhaust aftertreatment leverages its high purity and controlled dissolution. DEF manufacturers dissolve prilled or granulated urea in deionized water under hygienic conditions to ensure strict compliance with automotive and environmental requirements. The final aqueous solution is injected into SCR (Selective Catalytic Reduction) systems for nitrogen oxide abatement in commercial vehicles, power generation, and stationary engines, with product purity and homogeneity extensively monitored to ensure functional performance and prevent catalyst damage.

    Industry compliance standards

    • ISO 22241 series (Diesel engines—NOx reduction agent—Aqueous urea solution (AUS 32))
    • German VDA AdBlue® Certification (quality, packaging, and purity control)
    • API Certified Diesel Exhaust Fluid requirements (US market)
    • GB/T 29518-2013 (Chinese standard for AUS 32/DEF quality)

    Typical usage ratio

    • 32.5% by weight high-purity urea dissolved in 67.5% deionized water; deviations strictly not permitted by global standards

    Downstream process integration

    • Direct dissolution of urea in process water tanks with automatic mixing
    • Continuous filtration (1 micron or better) and multi-stage QC for low biuret and contaminant control
    • Sterile bulk filling into certified DEF delivery and storage systems

    Final product types

    • Bulk and packaged Diesel Exhaust Fluid (AUS 32/AdBlue®)
    • Pre-mixed solutions for factory fill (OEM assembly)
    • Containerized DEF for transport and stationary diesel engines

    5. Animal Feed Protein Supplements

    Feed manufacturers use feed-grade urea as a cost-effective non-protein nitrogen source in ruminant nutrition, primarily for cattle and sheep. Strict guidelines govern its use, as urea must be carefully blended into compound feed mixers after ingredient screening and particle size adjustment. The formulation must align with regional animal nutrition regulations to prevent toxicity and ensure animal welfare, with quality programs certifying both urea purity and mixing uniformity. The end products are high-protein feeds, mineral licks, and feed blocks for livestock production systems.

    Industry compliance standards

    • Codex Alimentarius – General Standard for Feed Additives (CODEX-STAN 192-1995)
    • EU Regulation (EC) No 767/2009 (placing animal feed on the market)
    • AAFCO Official Publication (US feed ingredient approvals and usage guidelines)
    • GB/T 13078-2017 (Safety standard of feed additives—China)

    Typical usage ratio

    • 0.5%–1.5% of total dry matter in formulated ruminant feed; adjusted based on protein equivalence, target species, and surrounding diet formulation

    Downstream process integration

    • Metered dosing into batch feed mixers post-milling but before pelleting
    • Incorporation into pressed mineral licks and urea-containing feed blocks
    • Final product QC includes blending uniformity and urea content analysis

    Final product types

    • Compound feed pellets for dairy and beef cattle
    • Molasses-urea mineral blocks
    • Pelleted feed for sheep and other ruminants

    6. Deicing Agent (Urea-Based Melting Products for Airports and Sensitive Zones)

    Airport and transportation authorities use specialty-formulated urea deicers as a preferred alternative to chloride-based products for sensitive runways, taxiways, and concrete surfaces, minimizing metal corrosion and eco-toxicity. Granulation plants introduce urea into specialist mixers with anti-caking agents and inert dyes for traceability. Finished products undergo rigorous certification for application on aviation grounds, with end users relying on controlled spreading equipment to deliver safety in winter operations without damaging aircraft or paved infrastructure.

    Industry compliance standards

    • AMS 1432/1A (Aviation standard for solid runway and taxiway deicing products—Urea-based)
    • FAA Advisory Circular 150/5200-30D (Airport Winter Safety and Operations)
    • ISO 11074:2015 (Soil quality—Deicing agent requirements for environmental protection)
    • GB/T 23851-2018 (China standard for deicing agents)

    Typical usage ratio

    • 100% urea prills or granules; field application rate typically 20–40 g/m² based on real-time ambient temperature, snow/ice thickness, and surface type

    Downstream process integration

    • Direct blending and granulation with flow conditioners or tracers as required
    • Sieving and dedusting for proper uniformity and spreading performance
    • Packing into bulk and specialty containers compatible with airside operations

    Final product types

    • Granular urea-based deicing agents for airports and transit facilities
    • Special low-biotin grades for high-sensitivity infrastructure
    • Bulk urea deicers for municipal snow management

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    Certification & Compliance
    More Introduction

    Urea Fertilizer: Shaping Modern Agriculture with Proven Chemistry

    What Makes Our Urea Fertilizer Stand Out?

    At our plant, we work with farmers, agronomists, and food producers every day. Our conversations often circle back to expectations about crop performance and soil health. Decades of manufacturing experience have shown us that not all nitrogen fertilizers deliver the same results in the field. Urea fertilizer, with the molecular formula CO(NH2)2, holds a distinct place among the choices available to modern growers. We see the benefits of granular urea with each production batch—consistent particle size, high nitrogen content, and reliable handling properties. With every shipment, our quality assurance laboratory checks for purity above 46% nitrogen content. These details determine how well plants absorb nutrients, how quickly nitrogen enters the soil, and how predictably fields respond after application.

    Product Models and Key Specifications

    We manufacture standard granulated and prilled urea, each offering benefits for different environments and spreading systems. The granulated material moves smoothly through most applicators, resisting caking during storage and distribution. Granules average between 2 and 4 mm, which matches the requirements from broadacre farmers and commercial fertilizer blenders. The prilled option, with a slightly finer, more spherical grain, fits well for tea plantations, oil palm estates, and other specialty crops equipped with precision spreaders. Both types reach a nitrogen content exceeding 46% by weight, with biuret levels below critical thresholds to avoid potential phytotoxicity in sensitive crops. Our plant management team insists on these specification targets based on feedback from field trials and collaborative research with agricultural universities.

    Understanding Urea’s Role in Feeding Today’s Crops

    Each bag of urea fertilizer offers an efficient, concentrated package of plant-available nitrogen. We see the impact of nitrogen nutrition every season—greener leaves, more robust stems, and heavier grains at harvest. The nitrogen in urea eventually converts into ammonium, which roots can absorb through various soil processes. Our agronomic team often explains to local growers why this matters: compared with ammonium nitrate or ammonium sulfate, a smaller volume of urea covers more land. The cost and logistics of hauling and spreading become less burdensome, especially for large acreage. Since farmers can apply our product as a straight dressing, blend it with phosphorus and potassium fertilizers, or drip-feed through irrigation systems, urea gives flexibility that many other forms lack.

    Direct Comparisons with Alternative Fertilizers

    Colleagues in our industry sometimes discuss urea only as one choice among many. Having manufactured several types ourselves, we’ve noted several key differences. Ammonium nitrate contains two nitrogen forms—ammonium and nitrate—which offer faster early uptake. Urea, on the other hand, delivers its nitrogen as a slow-release source after hydrolysis in the soil. This process returns visible benefits for crops that demand steady growth over weeks rather than a rapid flush. Our customers report that well-timed urea application reduces the risk of leaching and volatilization losses compared to surface-applied nitrate products in warm, moist conditions. Plus, the lower cost per ton of fixed nitrogen in urea, matched to its bulk density and storage safety, has kept our material in demand through decades of changing crop management practices.

    Manufacturing Experience: From Production Floor to Farm Gate

    Inside our reactors, the familiar cycle repeats every day—ammonia combines with carbon dioxide under heat and pressure, synthesizing urea crystals before they move through granulators or prilling towers. Each process step shapes properties that users notice in the field: dust formation, spread width, and ease of dissolving in water. Troubleshooting machine fouling or off-grade product isn’t a distant concern; it's part of each shift for our operators. They know where stickiness might signal moisture ingress, or where an off-color batch hints at process imbalance. We trace the path from raw materials all the way to the finished, packaged nutrient. Years of persistence refining temperature cycles, cooling rates, and anti-caking treatments mean the finished product lands in customers’ hands ready to perform.

    Environmental and Safety Considerations

    We follow strict emission and safety protocols based on national standards, but beyond paperwork, our employees live near the same rivers and fields that rely on careful nutrient management. Urea does not acidify soils as strongly as ammonium sulfate. Appropriate placement allows farmers to minimize nitrogen loss to runoff and volatilization, which helps both yield and environmental risk. We help local co-ops with recommendations on timing, rates, and incorporation, drawing on partner research to reduce the risk of groundwater contamination or air quality issues. Storage safety presents another benefit for those managing warehouses and supply sheds: our staff handle urea with fewer concerns over explosive hazards compared to nitrate products, bringing peace of mind to those working onsite.

    Practical Considerations in Application and Handling

    Our regular discussions with large-scale grain and vegetable producers focus on real-world performance in spreaders, blending, and drip systems. Over the years, granulated urea from our lines has proven less prone to bridging or compressing in silos than many powdery nitrogen options. Technicians test for flowability by simulating field conditions—humidity, vibration, and transit over long distances. Coating treatments applied at the factory serve two purposes: controlling fines generation and improving fertilizer flow. These details matter during high-demand season when spreaders cover thousands of hectares before rainfall. Some customers blend our urea with controlled-release coatings or stabilizers for further improvements, but we’ve seen strong field returns with unamended product when managed correctly for local conditions.

    The Agronomic Impact Stemming from Balanced Nutrition

    Yield data collected by our team supports what farmers have seen for generations: crops need reliable access to nitrogen over the growing season. Both intensive vegetable growers and broadacre cereal producers confirm that urea’s high analysis allows them to fine-tune input rates to match crop stage and expected demand. In some markets, we help smallholder cooperatives plan split applications, which use modest doses at sowing and again at vegetative peaks. Field trials at university research farms have measured not only higher yields but also improved protein content in wheat and other cereals after correct use. Our company’s collaboration with extension agents helps address questions regarding timing, rates, and possible interactions with irrigation and crop protection products.

    Concerns with Misuse and Prevention Strategies

    Some users and policymakers express concern about potential nitrogen losses through volatilization, especially in hot, alkaline soils. Through extension programs, we explain the role of urease inhibitors in reducing gaseous losses and improving crop recovery rates. Our technical guides highlight the benefits of timely incorporation, either by light tillage or by irrigating soon after broadcasting. We’ve noted in our records that volatilization risk drops sharply when urea granules are properly integrated into moist soil. Improper surface application can lead to atmospheric loss of around 20% or more of applied nitrogen under the wrong conditions, but many customers avoid this outcome with good practices.

    Economic Perspective from a Manufacturer’s Viewpoint

    Our cost structure centers on bulk inputs—natural gas for ammonia synthesis and electricity for plant operations. The global nitrogen market, with periodic price swings from geopolitical shifts or energy shortages, affects both our production budgeting and customer purchasing decisions. Despite these fluctuations, urea maintains a strong following with buyers for its cost-efficiency measured as price per unit of available nitrogen. The ability to ship large quantities in bulk containers, store them for months without significant loss of quality, and blend or surface-apply makes urea an industry mainstay. We field seasonal orders from cooperatives, plantation estates, and distribution networks that time purchases to maximize both price and availability.

    Feedback from Field Users and Research Partners

    Every feedback form, extension survey, or group discussion with customers brings new details that help us refine the final product. Many agronomists highlight how urea, as a straight nitrogen fertilizer, delivers predictable results in adaptable programs for wheat, corn, rice, and pasture systems. We invest in demonstration plots with research stations, comparing urea with alternative sources under identical conditions. These trials consistently show that nitrogen uptake from urea can closely match or exceed other sources, provided that environmental management and timing remain on target.

    Role in Sustainable Agriculture and Climate Policies

    Regulatory bodies increasingly focus on nutrient management as a key piece in climate action. Our manufacturing team tracks proposals for emission caps and nitrate leaching limits, knowing they shape not just compliance, but the tools and advice we provide growers. Urea’s potential contribution to sustainable agriculture comes from its high nutrient density and flexible application. We work with product improvement chemists to trial slow-release coatings, which aim to extend nitrogen availability and minimize loss. Some regions restrict nitrate fertilizers because of water contamination risks, leaving urea as a preferred tool alongside precision placement and soil testing. Our research partners emphasize integrating urea into balanced nutrition plans tailored to soil and crop needs, rather than relying on single-product solutions.

    Innovation in Product Development and Packaging

    Our engineering and packaging departments have developed high-barrier bags and bulk handling systems to protect against weather and moisture pickup, reducing waste across the supply chain. Field service teams visit customer facilities to train staff in best handling practices. Over the years, feedback has contributed to small but meaningful changes in bag strength, palletization, and labeling for traceability.

    Looking Ahead: Challenges and Opportunities

    Today, our focus turns to efficiency boosters, stabilizers, and environmentally aligned enhancement strategies. The latest advances in urease and nitrification inhibitors mean nitrogen from urea remains available in the soil longer, which benefits both crops and the surrounding ecosystem. Alongside these product improvements, our company promotes site-specific recommendations built on local monitoring and digital decision support tools. These advances ensure that urea remains both economically sound and environmentally responsible in the coming decades.

    Summary of Practical Advice for Growers

    As a manufacturer, we’ve long partnered with customers who understand their soil, climate, and management systems. Our team encourages using up-to-date soil analysis and crop modeling to determine nitrogen needs, supported by cautious placement and timing. We’ve seen time and again that attention to detail at every step—storage, blending, application—translates to improved nutrient use efficiency, reduced environmental impact, and higher returns for growers. By supporting transparent communication and ongoing field trials, we continue learning and applying the best of evolving urea technology for our customers’ success.

    Final Thoughts

    Manufacturing urea fertilizer isn’t just a matter of producing a white, free-flowing powder or granule. The real work starts on the factory floor and ends in every field, orchard, and garden that depends on steady, reliable nitrogen. We take responsibility seriously—producing a quality product, securing supply chains, and offering sound agronomic advice. This daily commitment keeps our company and customers confident as agriculture moves toward sustainability and efficiency. Guided by the latest science and grounded in experience, we continue to refine and improve our urea fertilizer for the needs of new generations of growers.