Controlled-Release NPK Compound Fertilizer from China Suppliers | Factory Direct Nutrient Management Solutions
Product Description
1. Promote absorption and resistance
Improve root adhesion, increase trace element absorption, prevent crop deficiencies, and enhance crop photosynthesis.
2. Reasonable nutrition formula
The nitrogen, phosphorus, and potassium ratio is reasonable, the particles are uniform, the nutrient content is sufficient, and the fertilizer effect is more durable.
3. Increase production and income
The quality is excellent, the quality of agricultural products is good, and the effect of increasing crop yield is remarkable.
- Available in low chloride (potassium from SOP) or MOP base
- Fast acting Nitrogen source from ammonium and nitrate
- Perfect granular (90 % granules within 1-4 mm) High available phosphate (80 % water-soluble)
- Even nutrients in each granular
Improve corn nutrient absorption, reduce bare tip rate, increase yield.
The average yield increase 8.3%, 9.8% and 12.5% on corn, rice and tomato accordingly
Specification
| Total-N% | NO3 % | NH4 % | UREA-N% | P2 O5 % | K2 O% |
|---|---|---|---|---|---|
| 14 | 4.6 | 9.4 | 14 | 14 | |
| 14 | 4.6 | 9.4 | 14 | 14 | |
| 14 | 4.6 | 9.4 | 14 | 14 | |
| 13 | 4 | 9 | 13 | 13 | |
| 20 | 7 | 13 | 8 | 10 | |
| 20 | 7 | 13 | 8 | 10 | |
| 19 | 7 | 12 | 7 | 9 | |
| 18 | 6.3 | 11.7 | 7 | 8 | |
| 18 | 6.3 | 11.7 | 7 | 8 | |
| 14 | 4.6 | 9.4 | 5 | 23 | |
| 13 | 4 | 9 | 4 | 22 | |
| 13 | 4 | 9 | 4 | 22 | |
| 13 | 4 | 9 | 4 | 22 |
Usage Scenarios
1. High-Value Horticulture
Widely used for container-grown plants (nursery stock, ornamentals, vegetables), greenhouse crops, and turfgrass (golf courses, sports fields, lawns) where precise nutrition and reduced labor are critical.
2. Large-Scale Field Crops
Increasingly adopted for staple crops like corn, rice, and wheat, especially in regions prone to leaching or where labor costs are high, improving efficiency and yield stability.
3. Sandy Soils & High Rainfall Areas
Particularly beneficial in soils with low nutrient retention or areas with heavy rainfall, where conventional fertilizers are easily washed away.
4. Long-Season Crops & Perennials
Ideal for fruit trees, vineyards, and other crops with extended growing seasons needing sustained nutrition.
5. Precision Agriculture & Reduced Access Areas
Useful where frequent field access for top-dressing is difficult, expensive, or undesirable. Simplifies fertilization programs.
Frequently Asked Questions
What are the primary benefits of using controlled-release compound fertilizer?
It promotes root absorption, enhances crop photosynthesis, prevents trace element deficiencies, and ensures a durable fertilizer effect due to its balanced nitrogen, phosphorus, and potassium formula.
What crop yield improvements can be expected?
On average, field testing shows yield increases of approximately 8.3% on corn, 9.8% on rice, and 12.5% on tomato crops, while also improving corn nutrient absorption and reducing bare tip rates.
What are the physical specifications and granule sizes of this fertilizer?
The fertilizer features highly uniform granules with 90% of them sized between 1-4 mm. It offers high available phosphate (80% water-soluble) and even nutrient distribution in each granule.
Is this fertilizer suitable for sandy soils or areas with heavy rainfall?
Yes, it is highly beneficial in sandy soils with low nutrient retention and high rainfall areas because the controlled-release mechanism prevents nutrients from being easily washed away or leached.
What potassium bases are available for this product?
This controlled-release compound fertilizer is available in either a low chloride base (potassium sourced from SOP) or a standard MOP base to suit different crop requirements.
Why is it recommended for high-value horticulture and precision agriculture?
It provides sustained, precise nutrition over time, which reduces the need for frequent top-dressing. This makes it ideal for container-grown plants, greenhouses, turfgrass, and sites where field access is difficult or costly.