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PHOSBAC - Phosphate Solubilizing Bacteria (PSB)



Phosphate Solubilizing Bacteria (PSB) in Phosbac dissolve the inorganic phosphate in soil and make it available to plants. Phosbac is completely organic, natural, and safe bioculture. Authentic plant biofertilizer with live bacteria.

Why do we need Phosphate Solubilizing Bacteria (PSB)?

Phosphate is a key nutrient required by plants. It is a critical element in DNA and in the ATP molecules of plant cells. Unfortunately, phosphate is not found in its free form in the soil. Even the phosphate added as a fertilizer binds with calcium present in soil and forms Tricalcium Phosphate. This bound phosphate cannot be used by plants.

Phosbac from Evolon Biotech has phosphate solubilizing bacteria that dissolve phosphate in soil and make it available for the plants.

PSBs present in Phosbac break the Tricalcium - Phosphate bond and release the locked phosphate. Thus making it available back again to the plants. Without these beneficial Phosphate Solubilizing Bacteria in Phosbac, plants just cannot use the nutrients in the soil. These bacteria also help in solubilizing Zinc and Potassium in soil. This also means that your requirement for fertilizers is reduced significantly. With PSB, the fertilizers will not remain locked in the soil and the plants will be able to use them.

With Phosbac you will be able to increase the phosphate, zinc, and potassium availability in soil and cut down the requirement of fertilizers by 30 to 50 %.

Phosbac works in different types of soil and pH conditions. It can be used for seed and root treatment, and direct soil application.

Phosbac - Phosphate solubilizing bacteria

Benefits of Phosbac


  • Mix Phosbac powder in water and use it directly. No waiting.
  • It is a natural and 100% organic product.
  • Phosbac solubilises the locked Phosphate, Zinc and Potassium in the soil.
  • It reduces fertilizer requirements by 50 %.
  • It increases crop yield by 25 to 30 %.
  • Phosbac has a live vigorous mixture of bacteria.
  • It has highly stable bacteria that work in soils of a wide pH range.
  • Bacteria in Phosbac are not inactivated by pesticides or high concentrations of fertilizers in the soil.
  • Phosbac has highly haloduric bacteria that can sustain extreme dryness and heat in the topsoil.
  • Bacteria in Phosbac work synergistically with other beneficial bacteria present naturally in the soil.

More about Phosbac

  • How much Phosbac will I need?
    1 Kg of Phosbac is sufficient for broadcasting in 1 acre land or for treating seeds to be planted in 1 acre. Amount may vary depending on seeds.
  • Will using Phosbac require any special preparation or equipment?
    No. Phosbac does not need any special preparation method or setup. You can use it directly as powder, mix it in water and spray it in the farm, or dose it using drip irrigation.


Application of Phosbac

Seed Treatment
Mix 100 g of Phosbac in 500 ml of water to make a slurry. Mix the seeds (for 1 acre) thoroughly with the slurry. Dry the seeds in shade for 1 hour. Sow the seeds within 24 hours after treatment.

Root Treatment
Mix 500 g of Phosbac in 50 liters of water. Dip the roots of the seedlings in the Phosbac mixture for 10 to 15 minutes. Plant the seedlings within 2 to 3 hours.

Direct Soil Application
Mix 1 Kg of Phosbac with 20 Kg of dried cow dung. Broadcast the mixture in one-acre field before transplanting.



Phosphate Solubilizing bacteria - Phosbac technical grade

Specifications - Technical grade

  • USAGE: For small garden / farm / home plants.
  • COUNT: 107 CFU/g.
  • PACKING: 1 Kg jar, 5 – 25 Kg box with pouches.
  • FORM: Free flowing powder.
  • COLOUR: Off-White to Light Brown.
  • SAFETY: Approved GRAS status microorganisms.
  • ORGANIC STATUS: 100 % Organic.
  • DOSAGE: 1 Kg per Acre.
  • MNF. CAPACITY: 3000 Kg / Month.
  • COST: Rs. 340 / Kg.
  • SHELF LIFE: 3 Months from MFD

Specifications - Commercial grade

  • USAGE: Farms more than 100 acres
  • COUNT: 107 CFU/g.
  • PACKING: 50 Kg laminated moisture proof bags.
  • FORM: Free flowing granular powder.
  • COLOUR: Dark brown to Grey Brown.
  • SAFETY: Approved GRAS status microorganisms.
  • ORGANIC STATUS: 100 % Organic.
  • DOSAGE: 1 Kg per Acre.
  • MNF. CAPACITY: 80 tonne per Month.
  • COST: Rs. 100 / Kg
  • MINIMUM ORDER: 500 Kg
  • SHELF LIFE: 3 Months from MFD
Phosphate Solubilizing bacteria - Phosbac commercial grade

Contact Us

Evolon Biotech

Located in Navi Mumbai in India.
We are the original manufacturer and supplier of Phosphate Solubilizing Bacteria (PSB) - Phosbac. We are export-compliant, and we supply bacteria all over India and Internationally.

Registered Office
101, A-Wing, Build. No. 6, Sakashi Park - II, Gate – 13/0, 14/0, 15/0 & 12 A, Shilottar, Malewadi, Panvel East,
Navi Mumbai, Maharashtra,
India, 410206.

+91 77 381 44 369