KingKorn Series
SOP-based NPK Compound FertilizersChloride-free nutrition for sensitive, high-value crops.

- Category
- Sulfate-based compound fertilizer
- Formulation
- Granular
- Key ingredients
- Potassium sulfate (SOP) + N-P-K + trace elements
- Application method
- Soil application – pre-plant & base dressing
- Zero chloride ions
- Bulk supply & OEM packaging
- Batch-tested quality
Product description
A sulfate-based compound fertilizer built around chloride-free potassium sulfate.
Chloride-free potassium sulfate core
This sulfate-based compound fertilizer is specially developed for fruits, vegetables, tobacco, potatoes and other crops that are sensitive to chloride. It uses potassium sulfate as its core potassium source to completely avoid the harm of chloride ions and ensure the healthy growth of crops.
Comprehensive quality and yield enhancement
Balanced nitrogen, phosphorus, potassium and trace elements protect the physiological functions of chloride-sensitive crops. Sulfur improves crop quality, while balanced nutrition directly increases overall yield.
Sustainable ecological planting
Designed to alleviate soil salt damage, promoting healthier root zones and making cropping systems much more sustainable over the long term.
Characteristics of sulfate-based compound fertilizer
Five reasons growers of chloride-sensitive crops choose SOP-based nutrition.
Chloride-free safety
Zero chloride ions protect sensitive root systems and prevent toxicity, ensuring healthy growth and higher survival rates.
Enhanced crop quality
Sulfur boosts protein synthesis, enzyme activity, and sugar accumulation, resulting in sweeter fruits, vibrant colors, denser tubers, and improved marketability.
Balanced nutrition
NPK ratios are tailored for each crop stage, with added magnesium, zinc, and boron for comprehensive nourishment.
Soil remediation
Sulfate compounds reduce soil salinity, lower pH in alkaline soils, and improve structure, enhancing water retention and microbial activity.
Eco-efficiency
Controlled-release technology minimizes leaching, increasing nutrient uptake by 30% and raising yields by 15 to 20%.
Specification
KingKorn special is available across a range of SOP-based NPK formulas.
| Range | Formula | Total-N% | NO3-N | NH4-N | UREA-N | P2O5% | K2O% |
|---|---|---|---|---|---|---|---|
| KingKorn special | 15-15-15 | 15 | 0 | 8 | 7 | 15 | 15 |
| KingKorn special | 17-17-17 | 17 | 0 | 6.5 | 10.5 | 17 | 17 |
| KingKorn special | 17-7-17 | 17 | 0 | 8 | 9 | 7 | 17 |
| KingKorn special | 16-16-16 | 16 | 0 | 7 | 9 | 16 | 16 |
| KingKorn special | 16-6-24 | 16 | 0 | 5.5 | 10.5 | 6 | 24 |
| KingKorn special | 15-5-25 | 15 | 0 | 6 | 9 | 5 | 25 |
| * Other NPK formulations available upon request | |||||||
Key application advantages
Why SOP-based potassium performs where chloride-sensitive crops are grown.
Low chloride content
Potassium is derived from SOP (potassium sulfate), keeping chloride levels minimal across the whole formula range.
No burning risk
Low salt index formulation avoids burning risk to sensitive roots or foliage during application.
Reduced water stress
Supports crops through reduced water stress during critical growth stages.
Potassium fulvic acid added
Contains added potassium fulvic acid for enhanced nutrient uptake and utilization.
Complete formula range
A complete formula range is available to suit varying crop demands and growth stages.
Contact us for quotation or bulk orders
Whether you are a fertilizer distributor or an agricultural supply wholesaler, Kingenta is your reliable partner in crop nutrition. Contact us today for a quote, sample, or technical advice – and let us help you grow better, sustainably.
Grow with Kingenta Let's build a sustainable future together
Whether you need bulk commodity supply, custom OEM formulation, or regional distribution partnership, Kingenta delivers global scale with tailored regional service.
