Mixture of humic substances and seaweed extract (Liquid)
A mixed-formulation biostimulant in liquid form, notified under FCO Schedule VI. Key notified measures: Humic acid ≥ 2.5 % w/w; Fulvic acid ≥ 0.3 % w/w. Notified for soybean.
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Composition
As notified in the Gazette, ingredient by ingredient.
| Ingredient | Content | Limit | |
|---|---|---|---|
| i | Humic substances (Source: Brown coal) per cent. by weight, minimum | 5% w/w | Minimum |
| ii | Seaweed (Ascophyllum nodosum) extract per cent. by weight, minimum | 24% w/w | Minimum |
| iii | Alkaline reagents (anyone or combination of potassium hydroxide, sodium hydroxide, dipotassium hydrogen phosphate, potassium carbonate) per cent. by weight, maximum | 5% w/w | Maximum |
| iv | Water per cent. by weight, maximum | QS% w/w | Maximum |
| v | 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 | Humic acid per cent. by weight, minimum | 2.5% w/w | Estimation of humic acid and fulvic acid |
| ii | Fulvic acid per cent. by weight, minimum | 0.3% w/w | Estimation of humic acid and fulvic acid |
| iii | Alginic acid per cent. by weight, minimum | 1.0% w/w | Method 7: Detection and quantification of alginic acid |
| iv | pH (as such) | 8.0- 10.0pH | Method 1: Estimation of pH |
| v | Specific gravity | 1.0- 1.1Specific gravity | Method 2: Estimation of specific gravity |
| vi | Total organic carbon per cent. by weight, minimum | 3% w/w | Method 4: Estimation of organic matter and organic carbon |
| vii | Solubility per cent. by weight, minimum | 97% w/w | Method 5: Estimation of water solubility |
| viii | Total dissolved solids per cent. by weight, minimum | 12% w/w | Estimation of TDS/TSS |
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 |
|---|---|---|---|
| Soybean | Three foliar applications at 750 m1/ha | No automated per-acre conversion because the notified wording contains multiple or non-standard rates; verify manually. | — |
Notification history
- 13 Aug 2025S.O. 3742(E): entry inserted · superseded by a later entry
- 16 Feb 2026S.O. 876(E): entry substituted (full replacement)
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.
Show more mixed formulations biostimulants 57 others in this category
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.