SOP 00-00-50 (Potassium Sulphate)

1. High Potassium Supply: Supports critical physiological processes such as fruit development, carbohydrate synthesis, and protein formation. 
2. Improves Fruit Size & Taste: Enhances sugar and starch content, contributing to better taste and shelf life. 
3. Chloride-Free: Safe for salt-sensitive crops like tobacco, grapes, potatoes, and citrus. 
4. Stress Tolerance: Increases resistance against drought, cold, and diseases. 
5. Enhanced Crop Quality: Promotes better color, texture, and storage quality in fruits and vegetables. 
6. Improves Root Development: Stimulates root growth, helping the plant absorb water and nutrients more efficiently. 
7. Sulphur Enrichment: Assists in enzyme function and synthesis of essential amino acids and vitamins. 
8. Compatible with Other Fertilizers: Easily blends with most water-soluble fertilizers and micronutrients. 
9. Ideal for Precision Farming: Suitable for fertigation, foliar spray, and drip irrigation systems. 
10. Low Salt Index: Ensures safety of roots and avoids leaf burn during foliar applications. 

1. Fertigation/Drip Irrigation:

• Dose: 5–10 kg/acre per application of SOP 00-00-50, depending on crop and stage. 

• Frequency: Every 7–10 days during fruit/flowering stage. 

2. Foliar Spray:

• Concentration: 1.5–2.5% (i.e., 15–25 g/L water) 

• Spray Interval: Every 10–15 days 

• Use early morning or late afternoon to prevent evaporation and leaf burn. 

3. Soil Application (in specific cases):

• Used where a quick supply of potassium is needed and chloride-based fertilizers are restricted. 

• Ideal Stage: Flowering, fruit-setting, fruit filling, and ripening stages. 

• Recommended Seasons: Mid to late crop stages in both Rabi and Kharif seasons. 

• Frequency: Based on soil test, crop requirement, and growing conditions – typically 2 to 4 applications per season. 

• Do not mix SOP 00-00-50 with calcium-containing fertilizers like Calcium Nitrate (CaNO₃). 

• Store SOP 00-00-50 in a dry place; reseal the pack after each use to prevent moisture absorption. 

• Use SOP 00-00-50 recommended dosage only; excessive use may lead to nutrient imbalance. 

• Wear gloves and mask while handling the product to avoid irritation. 

• Avoid foliar spray during extreme sun, high wind, or imminent rain. 

• Available Sizes: 1 kg, 5 kg, 10 kg, and 25 kg HDPE/laminated bags with inner liner. 

• Moisture-proof and tamper-resistant packaging to retain product integrity.