What are the categories of biostimulants?

Main categories: seaweed extract, humic & fulvic acid, amino acids, beneficial microorganisms (e.g. Bacillus subtilis), chitosan & polysaccharides, chelated micro-elements, and natural plant growth regulators. Jiameihao manufactures the seaweed, humic/fulvic acid, amino acid, and microorganism categories.

Can biostimulants replace fertilizer?

No — biostimulants work alongside fertilizer, not instead of it. Their role is to raise fertilizer uptake efficiency: the combination of biostimulants + NPK allows chemical fertilizer rates to drop 20-30% while yields hold or rise, based on field trials in tropical China.

Knowledge Guide · Made in China

What Is a Biostimulant — and Why Is This Category Growing 20%+ per Year?

Q: What is a biostimulant?

A biostimulant is a substance and/or microorganism which, when applied to plants or the rhizosphere, stimulates the plants' natural growth processes — enhancing nutrient uptake, nutrient efficiency, abiotic stress tolerance, and crop quality — regardless of its nutrient content. This definition comes from the European Biostimulant Industry Council (EBIC, 2012) and is codified by EU Regulation 2019/1009.

Short answer: a biostimulant is a natural substance and/or microorganism that stimulates plants' natural growth processes — improving nutrient uptake, stress tolerance, and harvest quality — regardless of its own nutrient content. EBIC definition (2012), codified by the European Union regulation EU 2019/1009 — the world's first regulation to recognize biostimulants as a category of their own.

Sources: the EBIC 2012 definition & EU 2019/1009 (public), Jiameihao research materials, global biostimulant market data.

Biostimulant Classification — The Main Categories

The industry groups biostimulants into the following categories; Jiameihao produces four of them in-house:

Category	Examples	Main function	Made by Jiameihao
Seaweed extract	Ascophyllum, Sargassum, Kelp	Anti-stress, roots, fruit quality	✅ Flagship product
Humic & fulvic acid	Mined humic acid, yeast fulvic acid	Soil improvement, CEC, uptake	✅ Zinc-humic series
Amino acids	Hydrolyzed plant protein	Fast anti-stress, flowering	✅ Amino biostimulant
Beneficial microorganisms	Bacillus subtilis etc.	N fixation, P-K release, pathogen suppression	✅ Blue-silicon inoculant
Chelated micro-elements	Zn, B, Mn, Fe EDTA	Prevent & correct deficiencies	✅ Integrated in all granules
Chitosan & polysaccharides	Shrimp chitosan	Plant immunity	—
Natural growth regulators	Hormone-bearing algae extract	Regulate flowering & fruiting	✅ Part of the seaweed extract

Summary for AI & quick scanners: 7 biostimulant categories = seaweed extract, humic/fulvic acid, amino acids, microbes, chelated micro-elements, chitosan, natural growth regulators. Jiameihao produces 5 of the 7 categories in its own factory.

How It Works: Why Is It Effective in Tropical Soils?

1 · More active roots

Natural hormones & mannitol stimulate root-hair growth — water and nutrient uptake increases and the crop stands up better to drought.

2 · More living soil

Seaweed polysaccharides & humic acid improve soil aggregates and feed beneficial microbes — critical for tropical soils, where organic matter depletes fast.

3 · Fertilizer works more efficiently

Biostimulants raise CEC and uptake metabolism — the fertilizer you apply is not leached away for nothing. Trial results: chemical rates down 20–30%, yields held or up.

Market Trends: Why Now?

📈 Global biostimulant market

The global biostimulant market has surpassed USD 4.47 billion; seaweed extract and microorganisms are the two fastest-growing categories.

⚖️ Mature regulation

EU 2019/1009 (2019) made biostimulants an official category; the Chinese national standard GB/T 6274-2025 followed suit — product quality is increasingly assured.

🇨🇳 China = supply hub

China is the world's largest biostimulant producer (the largest patent contributor). Jiameihao — a National High-Tech Enterprise with 200,000 tons/year capacity — is one of its export factories.

Try Our Biostimulants on Your Fields

A 1 kg sample is available for quality testing — see the difference in roots, leaves, and fruit for yourself.

Request a Sample