Phosphate solubilizing bacteria

Phosphate Solubilizing Bacteria (PSB) Liquid – Natural Bio-Fertilizer for Phosphorus Availability

Product Description:
Phosphate Solubilizing Bacteria (PSB) is a powerful bio-fertilizer containing beneficial soil microbes capable of converting insoluble forms of phosphorus (like tricalcium phosphate, rock phosphate, and iron/aluminum phosphates) into soluble forms easily absorbed by plant roots.

Phosphorus is essential for root development, flowering, fruiting, and seed formation. Regular application of PSB enhances phosphorus use efficiency, reduces the need for chemical fertilizers, and improves soil health for long-term fertility.

This eco-friendly formulation is suitable for all crops and soil types and is a key component of organic and sustainable farming systems.

🌱 Key Benefits

Solubilizes unavailable phosphate into plant-available form

Promotes strong root development and early crop maturity

Enhances flowering, fruiting, and seed setting

Increases fertilizer efficiency and reduces P-fertilizer cost

Improves soil microbial activity and organic carbon

Eco-friendly, safe, and residue-free

🌾 Recommended Crops

Paddy, Wheat, Maize, Cotton, Sugarcane, Pulses, Groundnut, Banana, Grapes, Citrus, Mango, Papaya, Vegetables, Plantation Crops, and Flowers

🧪 CFU Count

2×10⁹ CFU/ml (Colony Forming Units per ml)

💧 Dosage & Application

Seed Treatment: Mix 10 ml per kg of seeds, shade dry, and sow immediately.

Root Dipping: Mix 10 ml per liter of water and dip seedling roots for 20–30 minutes before transplanting.

Soil Application: Mix 1–2 liters per acre with 50–100 kg FYM or compost and apply near the root zone.

Drip Irrigation: Use 2 liters per acre through drip after filtration.

⚡ Mode of Action

Phosphate Solubilizing Bacteria produce organic acids such as gluconic acid, citric acid, and lactic acid, which lower soil pH around the root zone, dissolving fixed phosphates into available orthophosphate ions (H₂PO₄⁻ and HPO₄²⁻). This ensures better phosphorus uptake, stronger roots, and improved yield quality.

🌿 Why Farmers Prefer Phosphate Solubilizing Bacteria

Reduces dependency on chemical phosphate fertilizers

Improves soil fertility and nutrient cycling

Enhances flowering and yield naturally

Safe for soil, plants, and environment

Cost-effective and suitable for organic farming