SoluSOP 52 Organic is a premium, fully water-soluble potassium sulphate fertilizer for fertigation and foliar application. It supplies highly available potassium and sulphur, making it ideal during flowering, fruit sizing, bulking, ripening and quality improvement stages.
It contains 52.5% water-soluble K₂O and 45% water-soluble SO₃, equivalent to about 43.6% potassium and 18% sulphur. It dissolves quickly in water and is almost chloride-free, making it suitable for chloride-sensitive crops such as tomatoes, onions, potatoes, fruits, vegetables, flowers and greenhouse crops.
Key Benefits
- High potassium for fruit size, firmness, colour and quality.
- Sulphur supports protein formation and improves nitrogen efficiency.
- Excellent for fertigation and drip irrigation systems.
- Suitable for foliar feeding where quick correction is needed.
- Almost chloride-free, safer for sensitive crops.
- Useful during peak potassium demand stages.
- Helps improve crop tolerance to drought stress.
Recommended Use
Use SoluSOP during:
Vegetative to early flowering: to support strong crop development.
Flowering and fruiting: to improve fruit set, filling and quality.
Bulking stage: especially in onions, potatoes and tubers.
Ripening stage: to improve colour, dry matter and shelf life.
Application Guidance
Fertigation:
Apply based on crop stage, soil test, water quality and yield target.
Foliar application:
Use a low concentration first, especially on young or sensitive crops. K+S recommends foliar concentrations of about 0.5% to 5>#/strong###, depending on crop and conditions.
Best For
Tomatoes, onions, potatoes, capsicum, cucumber, watermelon, avocado, mango, passion fruit, strawberries, flowers, herbs and other high-value crops.
Farmer Note
For best results, use SoluSOP as part of a complete fertilizer program. Do not mix blindly with calcium fertilizers in the same stock tank. Always do a jar test before mixing with pesticides or other fertilizers.
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