OSA-2 – Orthosilicic Acid 2% w/w Liquid | Silicon Fertilizer for Plants | Improves Plant Strength, Stress Tolerance & Yield
OSA-2 – Orthosilicic Acid 2% w/w Liquid | Silicon Fertilizer for Plants | Improves Plant Strength, Stress Tolerance & Yield - 250 ml is backordered and will ship as soon as it is back in stock.
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OSA-2 – Orthosilicic Acid 2% w/w Liquid | Silicon Fertilizer for Plants | Improves Plant Strength, Stress Tolerance & Yield - 250 ml is backordered and will ship as soon as it is back in stock.
| Composition | Percentage |
| Ortho Silicic {Si(OH)4}, per cent by weight, min. | 2.0 |
| Plant available Silicon (Si) equivalent per cent by weight min. | 0.6 |
| Matter insoluble in water, per cent by weight, max. | 0.5 |
| Specific Gravity (g/ml) | 1.07-1.15 |
| Sodium (as Na) per cent by weight, max. | 0.10 |
| Total Chloride (as Cl) per cent by weight, max. | 4.0 |
Product Description:
Utkarsh OSA-2 is a high-performance silicon nutrient formulated with Orthosilicic Acid (OSA) 2% w/w, designed to deliver plant-available silicon for enhanced crop growth and resilience. Silicon plays a vital role in strengthening plant structure and improving tolerance against environmental stresses.
Utkarsh OSA-2 helps improve plant vigor by strengthening cell walls, enhancing nutrient absorption, and supporting key growth stages such as vegetative development, flowering, and fruit formation. Regular application contributes to improved crop quality, better yield potential, and stronger resistance to stress conditions.
Its liquid formulation ensures easy mixing and uniform application through foliar spray, drip irrigation, or soil drenching, making it suitable for modern agricultural practices across a wide range of crops.
1. Highly Available Silicon Source: Formulated with Orthosilicic Acid 2% w/w, the most plant-available form of silicon for efficient absorption and fast action.
2. Stronger Plants & Stems: Reinforces cell walls, improves stem strength, and helps reduce lodging in crops.
3. Stress & Disease Resistance: Enhances tolerance to heat, drought, and environmental stress while supporting natural plant defense against pests and diseases.
4. Better Nutrient Utilization: Improves nutrient uptake and efficiency, leading to healthier growth and improved crop performance.
5. Improved Yield & Quality: Promotes better flowering, fruiting, and overall crop quality, resulting in higher productivity.
6. How to Use (Dose & Application): (1) Foliar Spray: 2 to 2.5 ml per liter of water and 30 to 35 ml per 15-liter pump (2) Soil Application (Drip Irrigation / Drenching): 500 ml per acre and Up to 1 liter per acre for long-duration crops (as per requirement).
7. Best Application Stages: a) Vegetative stage b) Pre-flowering stage c) Early fruit/grain development
8. Suitable Crops- 1) Field Crops: Paddy, Wheat, Cotton, Sugarcane 2) Vegetables: Tomato, Chilli, and other vegetables 3) Fruits: Grapes, Mango, Banana, Apple, Citrus and 4) Plantation Crops: Tea, Coffee, Cardamom
