ZSB Bacteria Powder Formulation (Wettable Powder) Talc Based Powder

Zinc Solubilizing Bacteria (ZSB) are specialized soil microbes that convert insoluble zinc compounds into plant-available forms through organic acid production and enzymatic action. Formulated at 5 × 10⁷ CFU/g, they enhance zinc uptake, correct deficiencies, and improve crop resilience/yields.

Product Specifications

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

• Active Content: Strains like Bacillus subtilis, Gluconacetobacter diazotrophicus, or Pseudomonas moraviensis

• Carrier: Lignite powder (pH 6.0–7.5 for optimal activity)

Usage Instructions

1. Dosage: 1–1.5 kg/acre mixed with compost or 200 L water.

2. Timing: Apply at sowing/transplanting; reapply at flowering/fruit set.

3. Primary Action: Solubilizes ZnO, ZnCO₃, ZnS via organic acids (gluconic, citric).

4. Method:

   • Soil: Blend with FYM (1 kg/100 kg) and broadcast.

   • Seeds: Treat with 20 g/kg slurry (10% gum arabic as adhesive).

5. Frequency: 2 applications per crop (avoid alkaline soils > pH 8.0).

6. Compatibility: Synergistic with PSB and Azotobacter; avoid chemical zinc sprays for 15 days.

7. Activation: Requires low-Zn soils; suppresses Fusarium via siderophores.

8. Safety: Non-toxic to plants, earthworms, or pollinators.

Suitable Crops

• Cereals: Rice (prevents "khaira disease"), Maize (corrects "white bud"), Wheat

• Fruits: Citrus (reduces mottling), Apple (prevents "rosette"), Grapes

• Vegetables: Tomato (↑ fruit set), Onion (reduces leaf twisting), Potato

• Legumes: Chickpea (↓ bud drop), Soybean (↑ nodulation)

• Cash Crops: Cotton (prevents "little leaf"), Sugarcane

Storage Instructions

• Temperature: 10–25°C (avoid >30°C or freezing).

• Packaging: Airtight opaque bags with desiccant.

• Shelf Life: 12 months (lignite carrier maintains viability).

• Precautions: Store away from moisture, heavy metals, and direct sunlight.

Key Advantage

Biofortification Efficiency:
Mobilizes 15–25 kg Zn/ha/season, increasing grain zinc content by 30–50% and reducing deficiency disorders (e.g., rice "khaira") by 70% (ICAR-IISS data). Enhances drought tolerance via root biomass stimulation.