AOLANSU Slow Release Compound Fertilizer is developed for growers and agricultural distributors who need more predictable nutrient management across extended crop cycles. Instead of focusing only on rapid nutrient availability, this formulation is designed to maintain a more stable supply of nitrogen, phosphorus, and potassium after application, helping reduce repeated field operations and improve overall fertilizer management efficiency.
Manufactured by Shandong AOLANSU Environmental Protection Technology Co., Ltd., a professional China fertilizer manufacturer and supplier, the product is suitable for commercial farms, fertilizer distributors, greenhouse operators, orchards, and large-scale agricultural projects. AOLANSU also holds a Hazardous Chemicals Business License, supporting standardized chemical product operation and international trade requirements. Customized nutrient ratios, release periods, granule sizes, and packaging solutions are available for different crops and markets.
For buyers managing large agricultural areas, fertilizer efficiency is not determined only by nutrient concentration. Release timing, application frequency, storage performance, spreading accuracy, and compatibility with existing farming equipment can also affect the total cost of crop nutrition. This product is designed around these practical purchasing concerns, providing a controlled nutrient supply while maintaining the physical properties required for transportation and field application.
The formulation contains the major nutrients nitrogen (N), phosphorus (P₂O₅), and potassium (K₂O), with customized nutrient combinations available according to crop requirements. Its granular structure provides good flowability and uniform distribution, making it suitable for both manual spreading and mechanized fertilizer application.
The controlled-release coating regulates the movement of nutrients from each granule into the surrounding soil. Rather than releasing the entire nutrient load immediately, the fertilizer gradually supplies nutrients over an adjustable period, helping maintain nutrient availability during successive crop growth stages.
For farms with high labor and machinery costs, reducing the number of fertilizer applications can simplify field management. The extended release profile can allow more of the required nutrition to be incorporated into a planned fertilization program, reducing dependence on frequent additional top dressing when conditions are suitable.
Uniform particle size and good granule hardness support more consistent spreading. The product can be used with common fertilizer spreaders and other mechanized application equipment, helping distributors and farming operations maintain predictable application performance across larger cultivation areas.
Low moisture content and stable physical properties help reduce caking during normal storage and transportation. This is particularly important for international buyers who may need to keep fertilizer in warehouses before distribution or transport products over long distances.
Each fertilizer granule is surrounded by a specially engineered release layer. After the granules enter the soil, moisture gradually penetrates the coating and dissolves the nutrients inside. The dissolved nutrients then move outward through the coating at a controlled rate.
The release behavior can be adjusted according to coating characteristics, crop growth duration, soil conditions, and customer requirements. This makes the product suitable for agricultural programs where nutrient release needs to correspond more closely with crop demand rather than relying entirely on rapid nutrient dissolution.
Incoming raw materials are checked before entering production. Nutrient composition, moisture, and other relevant quality indicators are evaluated to establish consistent starting materials for each production batch.
Automated batching, mixing, granulation, drying, screening, coating, and cooling processes are integrated into production. Process parameters are controlled to maintain consistent granule dimensions, nutrient distribution, coating coverage, and physical strength.
Before shipment, finished fertilizer is inspected for nutrient content, moisture, particle size, appearance, and controlled-release characteristics. Products are released for delivery after meeting the established quality requirements, helping international buyers maintain consistent product specifications across repeat orders.
Rice, wheat, corn, soybean, and other field crops can benefit from a planned nutrient supply throughout their growth cycle. The product can be incorporated into base-fertilizer programs or used according to crop-specific nutrient management strategies.
Tomatoes, peppers, cucumbers, leafy vegetables, and other greenhouse crops require careful nutrient management because of their intensive production cycles. A controlled nutrient supply can help growers maintain more consistent nutrition while reducing the workload associated with repeated fertilizer applications.
Apple, grape, citrus, tea, cotton, and other commercial crops can be supplied with customized NPK combinations according to soil fertility and crop development requirements. The longer nutrient availability is particularly useful for production systems where fertilizer planning is organized around defined growth stages.
The Slow Release Compound Fertilizer can be incorporated into soil as a basal fertilizer before planting or transplanting, providing an initial nutrient reserve for crop establishment. Application rates should be determined according to crop nutrient requirements, soil fertility, climate, and local agricultural practices.
For established crops, it can also be incorporated into top-dressing programs where additional nutrition is required. The appropriate placement and timing should be determined according to the crop growth stage and local fertilization practices.
For large-scale farms, the uniform granules are compatible with mechanical broadcasting and fertilizer spreading equipment. This allows buyers to integrate the product into existing farm machinery without significantly changing their application workflow.
| Parameter | Specification |
|---|---|
| Product Name | Slow Release Compound Fertilizer |
| Manufacturer | Shandong AOLANSU Environmental Protection Technology Co., Ltd. |
| Fertilizer Type | Controlled Release NPK Compound Fertilizer |
| Main Nutrients | Nitrogen (N), Phosphorus (P₂O₅), Potassium (K₂O) |
| Total Nutrient Content | ≥40% |
| Release Period | 3–6 Months, customizable |
| Granule Size | 1.0–4.75 mm, ≥90% |
| Appearance | Uniform granules, off-white to light gray |
| Moisture Content | ≤2.0% |
| Package | 25 kg bag, 50 kg drum, 1000 kg jumbo bag |
| Shelf Life | 24 months under proper storage conditions |
| Formula | Formula | Formula | Formula |
|---|---|---|---|
| 5-25-15 | 15-15-15 | 17-17-17 | 18-18-18 |
| 19-19-19 | 10-52-10 | 13-7-40 | 15-5-30 |
| 15-30-15 | 20-10-30 | 30-10-10 | 18-24-8 |
| 25-0-0 | 16-6-18 | 26-14-5 | 16-14-20 |
| 25-0-5 | 15-5-21 | 18-6-18 | 16-16-16 |
Customized NPK ratios and release periods can be developed according to crop requirements, soil conditions, climate, cultivation methods, and destination-market specifications.
Standard packaging includes 25 kg PE-lined woven bags, 50 kg drums, and 1000 kg jumbo bags. AOLANSU can also provide customized bag printing, customer labels, OEM packaging, and other export-oriented packaging solutions according to order requirements.
The supply program is designed for fertilizer importers, agricultural distributors, wholesalers, commercial farms, and project buyers. Trial orders can be arranged before larger procurement programs, allowing buyers to evaluate product specifications, packaging, application performance, and compatibility with their distribution requirements.
AOLANSU can support international buyers with relevant product and shipping documentation, including COA, MSDS/SDS, Certificate of Origin, packing documentation, and other documents required according to the destination market and shipment conditions. The company holds a Hazardous Chemicals Business License (危险化学品经营许可证) as part of its chemical product business qualifications.
A commercial greenhouse tomato operation in Shandong integrated controlled-release compound fertilizer into its basal fertilization program to reduce dependence on frequent fertilizer applications. During the growing period, growers monitored plant development, leaf condition, flowering, and fruit formation while adjusting other nutrient inputs according to crop requirements.
The controlled nutrient supply helped maintain a more stable soil nutrient environment during the main vegetative and reproductive stages. Compared with a conventional program requiring more frequent fertilizer operations, the greenhouse team reported a reduction in routine fertilization workload and more consistent crop management. The case demonstrates how controlled-release fertilizer can be incorporated into intensive greenhouse production when application timing and nutrient requirements are properly managed.
The primary difference is nutrient release behavior. Conventional compound fertilizer generally makes nutrients available relatively quickly after application, while the coated formulation is designed to release nutrients gradually over an extended period. The appropriate choice depends on crop duration, soil conditions, climate, and the farm's fertilization strategy.
It can be used for rice, wheat, corn, vegetables, fruit trees, greenhouse crops, tea, cotton, and other commercial crops. AOLANSU can adjust the NPK ratio and release period according to the crop's nutrient demand and local growing conditions.
The standard release period is approximately 3–6 months. The actual release behavior can vary with soil temperature, moisture, coating specifications, and application conditions. Customized release periods can be discussed for specific crop cycles and markets.
Yes. AOLANSU can provide customized NPK ratios according to crop requirements, soil nutrient conditions, climate, cultivation methods, and customer market requirements. OEM and private-label packaging services are also available for qualified orders.
Standard options include 25 kg bags, 50 kg drums, and 1000 kg jumbo bags. Customized packaging, labels, bag materials, and export packing configurations can be arranged according to buyer requirements.
Yes. Sample orders can be arranged for qualified buyers who want to evaluate product specifications and application performance before placing a larger procurement order. Bulk supply programs can then be developed according to the buyer's requirements.
AOLANSU combines fertilizer manufacturing, quality management, customized formulation, packaging support, and international supply services to serve professional agricultural buyers. The company focuses on consistent granule quality, stable specifications, flexible production, and long-term cooperation with distributors, importers, fertilizer companies, and commercial farming projects.
For buyers looking for a controlled-release NPK solution rather than a standard fast-dissolving fertilizer, AOLANSU provides formulation customization, factory-direct supply, export documentation support, and application-oriented product solutions. Its Hazardous Chemicals Business License further supports its qualification for relevant chemical product business activities.
For quotations, product samples, customized NPK formulas, OEM packaging, bulk procurement, and export cooperation, please contact the AOLANSU sales team.
Email: yang.jiao@dicotbio.com
Phone: +86-18554319686
WhatsApp: +86-13953143210
Address: (North of Dongwei Group, West) Houwei Village, Changshan Town, Zouping City, Binzhou, Shandong Province, China
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(North of Dongwei Group, West) Houwei Village, Changshan Town, Zouping City, Binzhou, Shandong Province, China
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