High-Purity Boron Fertilizer for Efficient Crop Growth
Boron Fertilizer
| Chemical Name | Disodium Octaborate Tetrahydrate (DOT) |
| Chemical Formula | Na₂B₈O₁₃·4H₂O |
| CAS Number | 12280-03-4 |
| Boron (B), Water-Soluble | 20.5% – 21.3% |
| B₂O₃ Equivalent | 66% – 68.6% |
| Appearance | White crystalline powder or fine granules |
| Solubility | Fully water-soluble; dissolves quickly even in cold water |
Boron Fertilizer Product Overview
Risso Boron Fertilizer is a high-purity, fully water-soluble micronutrient fertilizer formulated with Disodium Octaborate Tetrahydrate (DOT). Boron is an essential element for cell wall formation, carbohydrate transport, flowering, pollen tube growth, fruit set, and root development. Even mild boron deficiency can severely reduce crop yield and quality.
With its high solubility and rapid leaf absorption, Risso Boron Fertilizer provides an efficient and reliable solution for correcting and preventing boron deficiency in a wide range of crops.
Typical Specifications
| Item | Specification / Typical Value |
|---|---|
| Chemical Name | Disodium Octaborate Tetrahydrate (DOT) |
| Chemical Formula | Na₂B₈O₁₃·4H₂O |
| CAS Number | 12280-03-4 |
| Boron (B), Water-Soluble | 20.5% – 21.3% |
| B₂O₃ Equivalent | 66% – 68.6% |
| Purity | High purity, low impurities |
| Appearance | White crystalline powder or fine granules |
| pH (10% solution) | ~ 7.7 (near neutral) |
| Solubility | Fully water-soluble; dissolves quickly even in cold water |
| Particle Size | Fine powder, typically < 75 μm, suitable for spraying & fertigation |
| Heavy Metals | Extremely low (As, Cd, Pb, Hg, Ni < 5 ppm) |
| Moisture | < 2% (typical) |
| Packaging | 10 kg / 25 kg / jumbo bags (customizable) |
Key Applications
1. Highly Concentrated Water-Soluble Boron (20.5–21.3% B)
2. Fast Dissolution and Excellent Compatibility
3. Neutral pH for Safe Application
4. Enhanced Absorption & Mobility
5. Improves Flowering, Fruit Set & Yield Quality
6. Helps Prevent Physiological Disorders Caused by Boron Deficiency
- Fruit cracking
- Hollow heart
- Poor pollination
- Deformed fruits
- Low sugar translocation
- Weak root system
Recommended Crops
Risso Boron Fertilizer is suitable for all boron-demanding crops, including:
Fruit trees: citrus, apple, grape, mango, pear
Vegetables: tomato, cucumber, pepper, eggplant
Oilseed crops: canola, soybean, sunflower
Industrial crops: cotton, sugarcane, tobacco
Greenhouse & hydroponic crops
Crops highly sensitive to boron deficiency respond quickly after application.
Application Methods & Dosage
1) Foliar Spray
Recommended rate: 150–200 g per 150–200 L water
Apply during pre-flowering, flowering, and early fruit set
Avoid spraying under extreme heat
2) Soil Application
Standard dose: 0.5–2 kg per acre
Apply as base fertilizer or early top-dressing
Ideal for soils with low organic matter or sandy texture
3) Fertigation / Drip Irrigation
Suitable for greenhouse, orchard, and drip systems
Ensures uniform distribution and high nutrient uptake
4) Seed Treatment (Optional)
Low-rate boron coating to improve early root development
For best results, soil or tissue testing is recommended before application.
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Why Choose Risso Boron Fertilizer?
High-purity 20.5–21.3% water-soluble boron
Consistent particle size for superior leaf penetration
Neutral pH for safe spraying and mixing
Suitable for drip irrigation, foliar spray, and soil application
Scientifically formulated to maximize boron bioavailability
Trusted quality from Risso, a professional micronutrient fertilizer supplier
Risso® delivers stable crop performance, higher yields, and improved fruit quality.
