ALGINATE OLIGOSACCHARIDE（powder）

High-Concentration Solid Alginate Oligosaccharide (AOS): Potent Biostimulant for Enhanced Crop Growth, Stress Resistance, and Quality.

Product Details	White powder
Alginate Oligosaccharide (AOS)	≥90%

Acts as a biostimulant to enhance crop growth, root development, and nutrient absorption.
Improves plant stress tolerance, helping crops withstand drought, salinity, and adverse environmental conditions.
Can be applied as a fertilizer additive or directly to crops to boost growth, quality, and physiological activity.

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Details

Alginate Oligosaccharide (AOS) is a high-activity oligosaccharide derived from brown algae through controlled degradation. With a degree of polymerization of 2–10, it ensures rapid plant response. AOS acts as a potent biostimulant, promoting root initiation, germination, and vigorous vegetative growth, while inducing key plant hormones (IAA, ABA, gibberellins) to enhance tolerance to drought, temperature extremes, salinity, waterlogging, and viral stress. It also improves fertilizer efficiency, nutrient absorption, amino acid and protein synthesis, and inhibits phytopathogenic bacteria. Excellent thermal stability and compatibility allow safe mixing with calcium and magnesium, making it ideal for modern fertilizer systems.

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Benefits

• High-activity brown algae–derived oligosaccharide (DP 2–10).
• Promotes rooting, germination, and rapid crop growth.
• Significantly enhances resistance to drought, cold, heat, salinity, waterlogging, and viruses.
• IImproves nitrogen absorption, amino acid synthesis, and protein formation.

• Inhibits phytopathogenic bacteria and reduces phytotoxicity.
• Excellent compatibility with calcium and magnesium, no flocculation or precipitation.
• High thermal stability and formulation flexibility.
• Safe, efficient, and environmentally friendly biostimulant.

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Field Application Cases

Grape:After application, berry enlargement was more uniform and sustained, with improved cell expansion and better nutrient translocation, supporting increased fruit size and improved cluster consistency.

Grape:After application, root activity was significantly enhanced, with increased fine root formation and stronger root vitality, improving water and nutrient uptake and supporting stable vine growth.

Hami Melon:After application, plants showed stronger early vigor with improved root establishment and balanced vegetative growth, supporting steady fruit enlargement and improved stress tolerance during the expansion stage.

Recommended Application

Application Method	Crop / Scenario	Application Stage / Growth Period	Dosage	Dilution / Preparation
As Raw Material Addition (Foliar Fertilizer, Tank Fertilizer)	Foliar fertilizer formulation	All crop types	2-3%	Add 20-30 kg per 1000 L solution
	Tank liquid fertilizer	All crop types	3-5%	Add 30-50 kg per 1000L solution
Root Irrigation	Vegetables (tomatoes, watermelons, peppers, etc.)	After transplanting, continuous harvesting period	80-100g/Ha	Add 10-20g per 1000 L water
	Fruit trees (citrus, apples, grapes, cherries)	Ripening	80-100g/Ha	Add 10-20g per 1000 L water
	Tubers (potatoes, beets, sweet potatoes, etc.)	Seedling stage, tuber expansion stage	80-100g/Ha	Add 10-20g per 1000 L water
	Leafy vegetables (lettuce, romaine lettuce, etc.)	Seedling stage, early maturity stage	80-100g/Ha	Add 10-20g per 1000 L water
Foliar Spray	Field crops (Wheat, Corn, Soybean)	Jointing stage, Booting stage, Pre-grain filling stage	8-10g/ha	Add 10-20g per 1000 L water
	Vegetables	Whole growth cycle	8-10g/ha	Add10-20g per 1000 L waterr
	Fruit trees	Flowering stage, Fruit set, Color turning stage	8-10g/ha	Add 10-20g per 1000 L water

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Honors and Qualifications

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Welcome to CityMax Group

Citymax group was established in the ancient city of Xi’an. With subsidiaries:Xi’an Citymax AgroChemical Co.,Ltd., Xi’an Greenfert Crop Science Co.,Ltd., Shaanxi Citymax Agrotech Co.,Ltd.