Biostimulants notified for onion under the FCO

8 of the 227 notified biostimulants list onion, the joint 12th highest of the 30 crops in Schedule VI. Each one below with its category, form and Gazette notification.

8notified for onion

2for onion and no other crop

5of them are granules

#12joint of 30 crops

Onion · by category

8 products

The largest group is mixed formulations: 5 of 8.

Mixed formulations5

Humic & fulvic1

Live microorganisms1

Bio-chemicals1

What it means for you: 8 notified products, against 67 for chilli: less crowded, but every new notification can change that. Make sure your product is notified for onion before you sell it for onion.

Selling for onion?

Find your product, then get its label

Every entry below opens its full FCO page: composition, specification, test method, notified crops and history. The dose for onion, word for word from the Gazette, with per acre and per guntha, comes in the product's label PDF.

Get the label · Rs. 49 + GST →FCO Insights 2026 →

All 8

Biostimulants notified for onion

Mixed formulations

5 for onion

Mixed formulationsGranule / GranularMixture of Seaweed extract, Protein Hydrolysate and Humic acid (Granule)Alginic acid ≥ 0.02 % w/w · Fucoidan ≥ 0.02 % w/wOnion · Paddy · Potato · CottonSerial 11 · S.O. 3741(E) · 13 Aug 2025

Mixed formulationsLiquidMixture of Seaweed extract, Protein Hydrolysate and Humic acid (Liquid)Alginic acid ≥ 0.5 % w/w · Fucoidan ≥ 0.5 % w/wOnion · Paddy · Potato · Chilli · CottonSerial 12 · S.O. 3741(E) · 13 Aug 2025

Mixed formulationsGranule / GranularMixture of Seaweed extract and Humate compounds (Granule)Alginic acid ≥ 0.001 % w/w · Humic acid ≥ 0.17 % w/wPaddy · Wheat · Potato · Sugarcane · OnionSerial 47 · S.O. 876(E) · 16 Feb 2026

Mixed formulationsGranule / GranularMixture of Seaweed extract and Humate compounds (Granule)Alginic acid ≥ 0.0003 % w/w · Humic acid ≥ 0.21 % w/wPaddy · Wheat · Potato · Sugarcane · OnionSerial 48 · S.O. 876(E) · 16 Feb 2026

Mixed formulationsGranule / GranularMixture of Seaweed extract, protein hydrolysate (plant source) and humic acid (Granule)Alginic acid ≥ 0.01 % w/w · Total amino acid ≥ 0.20 % w/wOnionSerial 53 · S.O. 1574(E) · 25 Mar 2026

Humic & fulvic

1 for onion

Humic & fulvicLiquidHumic acid and Fulvic acid 19.5 % (Liquid)Humic acid ≥ 18 % w/w · Fulvic acid ≥ 1.5 % w/wChilli · Potato · Paddy · Cotton · Cumin · Onion +1Serial 11 · S.O. 3741(E) · 13 Aug 2025

Live microorganisms

1 for onion

Live microorganismsOther / unspecifiedMicrobial Consortium 1 x 10⁷ cfu/gMethylobacterium symbioticum (cfu/g minimum) ≥ 0.5 x 10⁷ · Methylobacterium extrorquens (cfu/g minimum) ≥ 0.5 x 10⁷OnionSerial 3 · S.O. 2346(E) · 26 May 2025

Bio-chemicals

1 for onion

Bio-chemicalsGranule / GranularBiochemical (Stigmasterol and Campesterol) 0.01 % (Granule)Stigmasterol and Campesterol ≥ 0.01 % w/w · Total organic carbon ≥ 0.18 % w/wPaddy · Wheat · Potato · Sugarcane · OnionSerial 8 · S.O. 1574(E) · 25 Mar 2026

Other crops

Biostimulants by crop

Major crops with no notified biostimulant yet: all crops → · How fast the list is growing: FCO Insights 2026 →

Which biostimulants are notified for onion in India?

8 biostimulants in Schedule VI of the Fertiliser Control Order list onion (as on October 2026): mixed formulations (5), humic & fulvic (1), live microorganisms (1), bio-chemicals (1). This page lists each one with its category, form and Gazette notification.

Where can I find the dose of a biostimulant for onion?

The notified dose for onion, word for word from the Gazette, with per acre and per guntha, is in each product's FCO label PDF (Rs. 49 + GST). Each product page also shows its notified dose range across all its crops.

From NanoKheti's consolidation of FCO Schedule VI, up to S.O. 1574(E) of 25 Mar 2026; crop names as notified, grouped (for example rice as paddy). The Gazette text is authoritative.