Harpin αβ from Escherichia coli (Granule)
A cell-free microbial biostimulant in granule form, notified under FCO Schedule VI. Key notified measures: Harpin αβ ≥ 0.8 % w/w; Total organic carbon ≥ 1.22 % w/w. Notified for sugarcane.
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Composition
As notified in the Gazette, ingredient by ingredient.
| Ingredient | Content | Limit | |
|---|---|---|---|
| i | Harpin αβ (source: Escherichia coli) and fermentation solids per cent. by weight, minimum | 11% w/w | Minimum |
| ii | Potassium phosphate dibasic per cent. by weight, minimum | 0.71% w/w | Minimum |
| iii | Potassium phosphate monobasic per cent. by weight, minimum | 0.04% w/w | Minimum |
| iv | Sodium thiosulphate (anhydrous) per cent. by weight, minimum | 3.0% w/w | Minimum |
| v | EDTA tetrasodium salt per cent. by weight, minimum | 0.50% w/w | Minimum |
| vi | Maltodextrin per cent. by weight, minimum | 84.75% w/w | Minimum |
| vii | Total (per cent.) | 100 | Exact / specified |
Specifications (label claims)
The parameters a sample must meet, with the Part D method used to test each one.
| Parameter | Notified value | Test method | |
|---|---|---|---|
| i | Harpin αβ per cent. by weight, minimum | 0.8% w/w | Method 45: Estimation of Harpin-αβ |
| ii | pH (1 % aqueous solution) | 5.5- 6.5pH | Method 1: Estimation of pH |
| iii | Specific gravity | 1.35 ± 0.02Specific gravity | Method 2: Estimation of specific gravity |
| iv | Total organic carbon per cent. by weight, minimum | 1.22% w/w | Method 4: Estimation of organic matter and organic carbon |
| v | Solubility per cent. by weight, minimum | 99.4% w/w | Method 5: Estimation of water solubility |
Crops and doses
The Gazette wording is what counts; per-acre figures use 1 hectare = 2.47105 acres.
| Crop | Gazette dose | Per acre, each application | Per acre, season |
|---|---|---|---|
| Sugarcane | One foliar application at 100g/ha | 40.5 g | 40.5 g |
Notification history
- 13 Aug 2025S.O. 3741(E): entry inserted
Official notifications: Ministry of Agriculture & Farmers Welfare, biostimulant circulars.
Before you buy or stock it
- Check that the product name, composition and crop on the pack match this page.
- Use only the notified dose for your crop; the calculator converts it to your area.
- Ask the seller for the batch number and expiry date, and keep the bill.
Questions about your crop? Ask our agri expert on WhatsApp.
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Consolidated by NanoKheti from the Gazette of India notifications under Schedule VI of the Fertiliser (Inorganic, Organic or Mixed) (Control) Order, 1985, for reference. The Gazette text is authoritative; this page is not legal advice. Check the notification before labelling, licensing or buying. Covers notifications up to S.O. 1574(E) (25 Mar 2026); checked for later Schedule VI changes on 19 October 2026. Questions? Ask our agri expert on WhatsApp.