For crops entering periods of rapid vegetative growth, nitrogen availability directly affects leaf development, biomass accumulation, chlorophyll formation, and overall crop performance. AOLANSU Agricultural Urea Fertilizer CAS 57-13-6 is a high-concentration nitrogen source developed for farmers, fertilizer distributors, and agricultural input companies that require efficient nitrogen supplementation across different cultivation systems.
With a nitrogen content of ≥46.4%, this urea provides a concentrated source of plant-available nitrogen after conversion in the soil. Its high water solubility allows flexible use as basal fertilizer, top dressing, fertigation material, or properly diluted foliar fertilizer. The product is manufactured by Shandong AOLANSU Environmental Technology Co., Ltd. in China and supplied to international agricultural markets with batch quality inspection and export documentation.
AOLANSU holds a Hazardous Chemicals Business License and applies controlled production and handling procedures for chemical raw materials and fertilizer products. For international buyers, COA, MSDS, product specifications, and relevant export documents can be provided according to order and destination-market requirements.
Nitrogen is closely associated with chlorophyll, amino acids, proteins, and plant tissue development. When soil nitrogen availability is insufficient, crops may show slow vegetative growth, pale green leaves, and reduced biomass formation. Urea offers a concentrated nitrogen source that can be incorporated into different fertilization programs according to crop demand.
After application, urea dissolves in soil moisture and undergoes microbial conversion before nitrogen becomes available in forms that plants can absorb. Therefore, application timing, soil incorporation, irrigation, rainfall, temperature, and soil conditions all influence nitrogen-use efficiency.
This makes urea particularly valuable for crop nutrition programs where farmers need to adjust nitrogen supply according to crop growth stages rather than relying on a single fertilizer application.
With ≥46.4% total nitrogen, AOLANSU Agricultural Urea Fertilizer CAS 57-13-6 provides a high concentration of nitrogen in each unit of fertilizer. Compared with fertilizers containing lower nitrogen concentrations, less product may be required to deliver an equivalent amount of nitrogen, which can help optimize transportation, storage, handling, and field application costs.
Urea is highly soluble in water, making it suitable for agricultural programs that require rapid preparation and flexible nutrient delivery. Depending on crop requirements and local agronomic practices, it can be incorporated into soil, applied before or during crop growth, or dissolved for fertigation and foliar applications at appropriate concentrations.
Biuret is an important quality indicator for agricultural urea, particularly when the product is considered for foliar application. AOLANSU controls biuret at ≤1.0%, providing a consistent specification for agricultural buyers. Application concentration should still be determined according to crop species, growth stage, local conditions, and agronomic recommendations.
The granular product is manufactured with a typical particle size of 2-4 mm. Consistent granule size improves flowability and helps achieve more uniform distribution through mechanical fertilizer spreaders. This characteristic is particularly useful for large farms and fertilizer distributors supplying mechanized agricultural operations.
For maize, wheat, rice, and other field crops, urea can be incorporated into the soil before planting or applied during periods of high nitrogen demand. Splitting nitrogen applications according to crop development can help farmers better match fertilizer availability with plant uptake and reduce unnecessary nutrient losses.
Vegetables and commercial crops often have substantial nitrogen requirements during vegetative growth. Urea can be incorporated into a broader fertilization program together with phosphorus, potassium, and other nutrients according to soil test results and crop requirements. Careful application helps avoid excessive nitrogen that may lead to unbalanced crop growth.
Because urea dissolves readily in water, it can be considered for fertigation programs where nitrogen is delivered through irrigation systems. This method allows growers to divide nitrogen applications into smaller doses and coordinate nutrient supply with irrigation schedules.
Properly diluted urea solutions can be used for foliar nitrogen supplementation in suitable crops. Because excessive concentration may cause leaf injury, foliar application rates should be determined according to crop tolerance, environmental conditions, and professional agronomic recommendations.
Urea performance is influenced not only by fertilizer quality but also by how and when it is applied. When urea remains on the soil surface under warm and moist conditions, part of the nitrogen can potentially be lost through ammonia volatilization. Heavy rainfall or excessive irrigation may also contribute to nitrogen movement beyond the crop root zone.
For improved nitrogen management, farmers can consider incorporating urea into the soil where appropriate, applying it before suitable rainfall or irrigation, dividing applications according to crop demand, and avoiding unnecessary surface application under conditions that favor nitrogen loss.
These practices allow the high nitrogen concentration of AOLANSU Agricultural Urea Fertilizer CAS 57-13-6 to be integrated more effectively into precision nutrient management programs.
Urea is produced through a controlled chemical reaction involving ammonia and carbon dioxide. AOLANSU manages key production parameters to maintain stable conversion conditions and consistent product composition.
After synthesis, molten urea is processed into solid granules. Granulation conditions are controlled to achieve suitable particle size, hardness, and flowability for fertilizer handling and mechanical field application.
Finished granules are screened and inspected before packaging. Quality testing focuses on nitrogen content, biuret, moisture, purity, particle size, and physical appearance. Batch-specific quality data can be provided through a Certificate of Analysis for professional procurement and incoming-material verification.
| Parameter | Specification |
|---|---|
| Product Name | Agricultural Urea Fertilizer |
| CAS No. | 57-13-6 |
| Molecular Formula | CO(NH₂)₂ |
| Appearance | White uniform granular particles |
| Typical Particle Size | 2-4 mm |
| Total Nitrogen | ≥46.4% |
| Biuret | ≤1.0% |
| Moisture | ≤0.5% |
| Purity | ≥98.5% |
| Melting Point | 132.7°C |
| Solubility | Highly soluble in water |
| Packaging | 25 kg / 50 kg woven bags, bulk packaging available |
| Storage | Store in a dry, cool, and ventilated warehouse away from moisture and excessive heat |
For B2B buyers, consistent documentation is important when approving fertilizer suppliers. AOLANSU can provide batch-specific COA data covering nitrogen content, moisture, biuret, purity, and other agreed quality indicators. Product specifications and MSDS are also available for customer evaluation and internal quality procedures.
Standard packaging includes 25 kg and 50 kg woven bags, while bulk packaging and customized packaging can be discussed for larger procurement programs. Proper moisture protection is important during warehouse storage and long-distance transportation because urea can absorb moisture and become caked under unsuitable conditions.
AOLANSU supports trial purchases, regular distributor supply, and large-volume agricultural procurement. Packaging, labeling, order quantity, delivery schedules, and documentation can be coordinated according to destination-market requirements.
For overseas customers, AOLANSU supports export documentation preparation and shipment coordination. The company works with international logistics partners to arrange delivery for agricultural distributors, fertilizer importers, commercial farms, and agricultural input companies in different markets.
A reliable nitrogen fertilizer supplier needs to provide more than a high nutrient specification. For professional buyers, production consistency, documentation, packaging, supply stability, and regulatory handling are equally important. AOLANSU combines fertilizer manufacturing experience with controlled quality inspection and international supply support.
Shandong AOLANSU Environmental Technology Co., Ltd. operates standardized production and quality management procedures and holds a Hazardous Chemicals Business License. The company also supports international buyers with COA, MSDS, customized packaging, and export coordination, helping distributors and agricultural enterprises establish a more stable fertilizer sourcing channel.
The product contains ≥46.4% total nitrogen, making it a concentrated solid nitrogen fertilizer suitable for a wide range of agricultural applications.
Yes. Urea is widely used for cereals such as maize, wheat, and rice, as well as vegetables, cotton, fruit trees, and other crops with nitrogen requirements. The appropriate rate and timing should be determined according to crop demand, soil fertility, and local agronomic practices.
Yes. Its high water solubility makes urea suitable for fertigation when the irrigation and fertilizer systems are compatible. Application concentration and frequency should be adjusted according to crop requirements and irrigation conditions.
Professional buyers should evaluate nitrogen content, biuret level, moisture, purity, particle size, granule quality, packaging, COA availability, production consistency, and supplier export capability. These factors can affect fertilizer handling, storage, application, and overall procurement reliability.
It should be kept in a dry, cool, and well-ventilated warehouse. Bags should be protected from rain, condensation, and other moisture sources, and direct exposure to high temperatures should be avoided. Proper storage helps maintain granule quality and reduce caking.
Yes. AOLANSU can support product evaluation with samples and technical documentation according to customer requirements. A batch-specific COA can be provided for quality verification before or with shipment.
Yes. In addition to standard 25 kg and 50 kg packaging, AOLANSU can discuss customized bags, labels, bulk packaging, and other requirements for fertilizer distributors and international agricultural brands.
From nitrogen specification and granule quality to documentation and international logistics, AOLANSU focuses on the practical requirements of professional fertilizer procurement. With controlled manufacturing, batch inspection, export experience, and a Hazardous Chemicals Business License, AOLANSU provides a dependable supply option for agricultural distributors, importers, commercial farms, and fertilizer formulators.
For customers planning long-term procurement, AOLANSU can provide product specifications, COA, MSDS, packaging options, and supply information to support supplier evaluation and purchasing decisions.
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