Slow Release Compound Fertilizer

AOLANSU Slow Release Compound Fertilizer is a premium agricultural input product created by its manufacturer, Shandong AOLANSU Environmental Protection Technology Co., Ltd., and is specifically designed for large-scale, intensive modern agriculture.

1. Core Components: Contains Nitrogen (N), Phosphorus (P₂O₅), Potassium (K₂O), as well as essential secondary and trace elements—including Calcium, Magnesium, Sulfur, and Zinc—formulated in a scientifically balanced ratio.

2. Physical Characteristics: Appears as uniform granules ranging from off-white to light gray; it is odorless, non-toxic, possesses excellent flowability, and resists caking, thereby facilitating easy storage, transportation, and mechanized application.

3. Compliance Standards: Strictly adheres to both the Chinese National Standard GB/T 23348-2009 and the international ISO 18644:2016 standard; free from harmful additives, it ensures safety and environmental protection during long-term application.

4. Production Base: Manufactured at a standardized production facility in China, featuring comprehensive, full-process quality control—from raw material selection to the final product's factory release—ensuring complete traceability throughout the entire supply chain.

Core Technology and Advantages

Addressing the common drawbacks of traditional fast-acting fertilizers—such as nutrient leaching and the risk of "burning" seedlings—AOLANSU Slow Release Compound Fertilizer employs advanced resin-coating technology to create a uniform, breathable protective film on the surface of each granule.

1. Release Profile

Characterized by slow release during the seedling stage, moderate release during the tillering and flowering stages, and ample release during the fruiting and maturation stages—perfectly aligning with the specific nutrient requirements of crops at every phase of their growth cycle.

2. High Utilization Rate

Achieves a nutrient utilization rate exceeding 45%, representing an improvement of 10–15 percentage points compared to traditional compound fertilizers, thereby minimizing nutrient waste and reducing non-point source pollution. 3 Long-lasting Efficacy: A single basal application can satisfy the crop's nutrient requirements throughout its entire growth cycle, preventing nutrient depletion and premature senescence during the later stages.

Rigorous Quality Control: Stable and Reliable Quality

1. Raw Material Selection

Strict controls are maintained over the levels of heavy metals, harmful impurities, and chloride ions to ensure full compliance with international agricultural fertilizer standards.

2. Advanced Processing

Employs an integrated technology combining mixing, granulation, and coating processes to ensure uniform nutrient distribution within every granule and consistent coating thickness.

3. Batch Testing

Every production batch undergoes rigorous testing in a professional laboratory for key parameters—including total nutrient content, slow-release rate, moisture levels, and particle size—and is released from the factory only after passing all quality checks.

Broad Applicability

1. Crop Suitability

Suitable for major field crops such as rice, wheat, and corn; vegetables like tomatoes and peppers; fruit trees such as apples and grapes; and cash crops including tea and cotton.

2. Soil Suitability

This Slow-Release Compound Fertilizer is effective in acidic, alkaline, and neutral soils; long-term application helps regulate soil pH, improve soil structure, and enhance soil fertility.

3. Convenient Application

Can be applied via broadcasting, furrow application, spot application, or drip irrigation. A single basal application replaces multiple top-dressings, reducing the number of fertilization operations by 2–3 times and significantly lowering labor costs.

Real-World Application Cases

Case 1: Tomato Cultivation in Shouguang, Shandong (Protected Agriculture/Greenhouse Vegetables)

1. Cultivation Scale: 50 mu (approx. 3.3 hectares) of greenhouse tomatoes; the soil type is neutral loam.

2. Application Plan: A basal application of 40 kg of AOLANSU Slow-Release Compound Fertilizer per mu was applied. No top-dressing was performed during the growth period. A control plot utilized standard compound fertilizer (with top-dressing applied every 15 days).

3. Application Results:

- The tomato plants exhibited vigorous growth; the fruit-setting rate increased by 20%, and the average weight per fruit rose by 15%. The yield reached 8,500 kg per mu—a 25% increase compared to the control plot.

- The need for top-dressing was reduced by 4 applications, saving 300 RMB in labor costs per mu. Fertilizer utilization efficiency improved by 12 percentage points, while soil salinity accumulation was reduced by 18%.

Case 2: Wheat Cultivation in Zhoukou, Henan (Major Field Grain Crops)

1 Cultivation Scale: 

200 mu (approx. 13.3 hectares) of winter wheat; the soil type is sandy loam.

2. Application Plan: 

Apply 35 kg of AOLANSU slow-release compound fertilizer per mu as a base fertilizer; no top-dressing is required during the green-up stage. The control field utilized standard compound fertilizer (with one top-dressing application during the green-up stage).

3. Application Results:

- Wheat crops exhibited increased tillering, sturdier stems, and enhanced lodging resistance. The number of grains per spike increased by 8%, and the thousand-grain weight improved by 5%. Yield reached 620 kg per mu, representing a 12% increase in production.

- The elimination of one top-dressing application resulted in labor cost savings of 150 RMB per mu, while nitrogen fertilizer loss was reduced by 30%, thereby aligning with the requirements for sustainable green agricultural development.

Packaging, Delivery, and Service

1. Packaging Specifications

Adhering to international standards for agricultural packaging, options include 25 kg woven bags with PE liners, 50 kg galvanized iron drums, and 1000 kg bulk bags. The packaging is moisture-proof, abrasion-resistant, and corrosion-resistant; custom packaging and labeling services are available upon request.

2. Inventory and Logistics

Our factory in China maintains ample inventory year-round. Supported by a professional logistics team, we ensure a stable supply to regions including Southeast Asia, Africa, South America, and Europe, featuring efficient customs clearance and timely delivery.

3. Flexible Procuremen

We support small-batch trial orders starting from 1 ton, helping to mitigate procurement risks. Long-term bulk orders qualify for direct-from-factory pricing benefits, eliminating intermediaries and significantly reducing overall costs.

Product Specifications

FAQ

Q1: What is the difference between Slow Release Compound Fertilizer and traditional quick-release compound fertilizer?

A1: The biggest difference lies in the nutrient release mode. Traditional quick-release compound fertilizer releases nutrients rapidly, which easily causes nutrient loss through leaching and volatilization, and may lead to fertilizer burn. Our slow-release compound fertilizer adopts resin coating technology to control nutrient release rate, which matches the crop growth cycle, with higher nutrient utilization rate (more than 45%), fewer fertilization times and labor-saving advantages. It also avoids environmental pollution caused by nutrient loss.

Q2: Can this product be used for both field crops and fruit trees? What is the recommended dosage?

A2: Yes, it is suitable for almost all field crops, fruit trees, vegetables and economic crops. The recommended dosage varies according to crop types and soil fertility: 30-40kg per mu for grain crops such as rice and wheat (as basal fertilizer); 40-60kg per mu for fruit trees and vegetables (as basal fertilizer). It can be adjusted appropriately according to actual planting needs.

Q3: Can the nutrient release period of the product be customized according to our needs?

A3: Yes. As a professional China manufacturer, Aolansu can customize the nutrient release period (3-12 months) according to the specific growth cycle of your local crops and soil conditions, ensuring that the nutrient supply perfectly matches the crop growth needs and maximizing the fertilization effect.