Phosphate Solubilising Bacteria
A biofertiliser under the Fertiliser Control Order, 1985.
Specification
As notified in the Order, line by line. Values are per cent by weight unless the line says otherwise.
| Parameter | Notified value | |
|---|---|---|
| Total viable count | CFU minimum 5×107 cell per gram of powder, granules or carrier material or per gram capsule content or 1×108 cell per milliliter (ml) of liquid. | |
| Contamination level | No contamination at 10^5 dilution. | |
| pH | 5.0-7.0 for moist/dry powder, granulated carrier based and 5.0-7.5 for liquid based. | |
| Efficiency character | The strain should be capable of solubilizing at least 30 mg/litre of Phosphorus in liquid broth when tested as per the method given using Tricalcium Phosphate or Aluminium Phosphate or Iron Phosphate as Phosphate source. |
Tolerance (Schedule III, Part B): 1. In case of Rhizobium, Azotobacter, Azospirillum Phosphate Solubilising Bacteria, Potash Mobilising Bacteria, Zinc Solubilising Bacteria, the total viable count shall not be less than 1×107CFU/gm of carrier material in the form of powder or granules or 5×107CFU/ml in case of liquid formulations.
Test methods: Schedule III, Part D (methods of analysis of biofertilisers).
Label for this product
The front and back label of Phosphate Solubilising Bacteria with your company's details: the heading word, every notified line, net quantity, MRP, batch, licence number and customer care, in the format the Order asks for. One PDF for your licence file and your designer.
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Notification history 3 entries
- 1 Jul 2021S.O. 2671(E): entry substituted (in force 2 Jul 2021)
- 22 Sep 2022S.O. 4477(E): pH line substituted (was “6.5-7.5”)
- 13 Mar 2026S.O. 1335(E): Total viable count line: the words “or per gram capsule content or” inserted
Consolidated by NanoKheti from the Fertiliser (Inorganic, Organic or Mixed) (Control) Order, 1985, as amended up to the Ninth Amendment Order, 2026 (S.O. 4045(E), 22 Jul 2026), for reference. The Gazette text is authoritative; this page is not legal advice. Check the notification before labelling, licensing or buying. Checked for later changes on 20 October 2026.