Seaweed (Ascophyllum nodosum) extract 99.4% (Liquid)
A seaweed extract biostimulant in liquid form, notified under FCO Schedule VI. Key notified measures: Alginic acid ≥ 1.8 % w/w; Fucoidan ≥ 2.0 % w/w. Notified for chilli.
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Composition
As notified in the Gazette, ingredient by ingredient.
| Ingredient | Content | Limit | |
|---|---|---|---|
| i | Seaweed (Ascophyllum nodosum) extract liquid per cent. by weight, minimum | 99.4% w/w | Minimum |
| ii | Methyl p- hydroxybenzoate per cent. by weight, maximum | 0.30% w/w | Maximum |
| iii | Propyl p- hydroxybenzoate per cent. by weight, maximum | 0.06% w/w | Maximum |
| iv | 2- Propanol per cent. by weight, maximum | 0.15% w/w | Maximum |
| v | Sodium hydroxide per cent. by weight, maximum | 0.09% w/w | Maximum |
| vi | 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 | Alginic acid per cent. by weight, minimum | 1.8% w/w | Method 7: Detection and quantification of alginic acid |
| ii | Fucoidan per cent. by weight, minimum | 2.0% w/w | Method 9: Detection and quantification of fucoidan |
| iii | Mannitol per cent. by weight, minimum | 1.0% w/w | Method 10: Estimation of mannitol |
| iv | Total organic carbon per cent. by weight, minimum | 5.8% w/w | Method 4: Estimation of organic matter and organic carbon |
| v | pH (1 % aqueous solution) | 7.5- 8.5pH | Method 1: Estimation of pH |
| vi | Total dissolved solids per cent. by weight, minimum | 20% w/w | Estimation of TDS/TSS |
| vii | Specific gravity | 1.10- 1.20Specific gravity | Method 2: Estimation of specific gravity |
| viii | Solubility per cent. by weight, minimum | 99.8% w/w | Method 5: Estimation of water solubility |
Tolerance (Schedule VI Part B, S.O. 3922(E)): Seaweed Extract: Ascophyllum nodosum, Sargassum, Kappaphycus, Gracilaria and Ulva: 5% of the specified value of active ingredients or the tracer molecule.
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 |
|---|---|---|---|
| Chilli | Three foliar applications at 2.0 litre/ha | 809 ml | 2.43 litre |
Notification history
- 25 Mar 2026S.O. 1574(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.