Rhizobium Powder Formulation (Wettable Powder) Talc Based Powder

Rhizobium spp. are symbiotic nitrogen-fixing bacteria that form root nodules on legumes, converting atmospheric nitrogen (N₂) into plant-usable ammonia. Formulated at 5 × 10⁷ CFU/g, they eliminate the need for synthetic N-fertilizers in pulse and oilseed crops while enhancing soil fertility.

Product Specifications

• CFU: 5 × 10⁷ per gram (50 million viable cells/g)

• Active Content: Strain-specific live cells (e.g., R. leguminosarum for peas, R. japonicum for soybean)

• Carrier: Peat/lignite powder (pH 6.5–7.5; sterile)

Usage Instructions

1. Dosage: 200–500 g/acre (varies by crop density).

2. Timing: Apply to seeds at sowing; avoid direct sunlight during treatment.

3. Primary Action: Fixes 50–300 kg N/ha/season via nif gene-mediated nitrogenase.

4. Method:

   • Seed Treatment: Mix with 10% jaggery solution → coat seeds → shade-dry 20 min.

   • Soil Application: Blend with compost (1 kg/10 kg) for broadcasting.

5. Frequency: Single application at sowing (reapplication unnecessary).

6. Compatibility: Synergistic with PSB; never mix with fungicides (e.g., carbendazim/thiram).

7. Activation: Requires neutral soils (pH 6.5–7.5); low N, medium P conditions.

8. Safety: Non-toxic; enhances soil biodiversity.

Storage Instructions

• Temperature: 4–15°C (refrigeration critical; >25°C kills cells).

• Packaging: Vacuum-sealed, opaque aluminized pouches.

• Shelf Life: 6 months (check expiry; discard if black/brown).

• Precautions: Avoid moisture, heat, and fungicide contamination.

Key Advantage

Species-Specific Symbiosis:

• Fixes 100–250 kg N/ha in soybean (R. japonicum) and 75–150 kg N/ha in chickpea (Mesorhizobium ciceri)

• Boosts protein content by 15–25% in grains

• Reduces synthetic N use by 70% (ICAR-IIPR trials)