NPK Compound Fertilizers: What Buyers Should Know
An NPK compound fertilizer combines nitrogen, phosphorus, and potassium into a single balanced granule for field crops, vegetables, and fruit trees. Buyers source NPK compound fertilizers from China for custom ratios (such as 15-15-15, 20-20-20, and 17-17-17), slow-release coatings, and cost-effective bulk supply.
The key decision factors are NPK ratio, granule uniformity, release mechanism, and trace-element addition. Regional soil needs and crop stage drive the right formula. The curated suppliers below are screened against these criteria.
Curated Suppliers — NPK Compound Fertilizers
7 Checks Before Choosing a NPK Compound Fertilizers Supplier
1. NPK ratio
Match the ratio to crop and soil test; balanced 15-15-15 for general use, high-K for fruiting.
2. Release type
Choose controlled-release coatings for reduced labor and steady feeding.
3. Granule uniformity
Uniform granules spread evenly and avoid nutrient striping.
4. Trace elements
Confirm added Fe, Zn, B, and Mn where soils are deficient.
5. Chloride content
Prefer low-chloride (SOP-based) grades for chloride-sensitive crops.
6. Solubility
Check the water-soluble fraction for a fast initial response.
7. Certification
Verify destination registration and labeling compliance before import.
Frequently Asked Questions
What does NPK stand for?
NPK stands for nitrogen (N), phosphorus (P), and potassium (K), the three primary nutrients in compound fertilizers.
How do I choose the right NPK ratio?
Use a soil test and match the ratio to the crop stage: higher N for vegetative growth, higher P at planting, higher K for fruiting.
What is the difference between compound and blended fertilizer?
Compound fertilizer is chemically granulated with uniform nutrients, while blended fertilizer is a physical mix of single-nutrient granules.
What is the MOQ for NPK compound fertilizers from China?
Standard grades often start at 10-25 metric tons; custom blends may require more. See each supplier profile for details.