Description
MarkNature Chitosan Oligosaccharide (COS) is a highly active, water-soluble agricultural biostimulant derived from natural chitin through enzymatic hydrolysis. With a low molecular weight and high deacetylation degree (≥90%), this yellow powder exhibits strong biological activity that enhances plant growth, nutrient absorption, and stress resistance. Its excellent solubility ensures fast absorption by plants through foliar, root, or seed treatments. Chitosan Oligosaccharide effectively improves soil microbial balance, promotes seed germination, and strengthens plant immunity—making it an essential bio-based solution for sustainable agriculture.
Specification:
Appearance: Yellow powder
Deacetylation (DAC): ≥90.0%
Insoluble Substance: ≤1.5%
Moisture: ≤10.0%
Ash: ≤1.5%
Key Features:
1)、Promotes callus formation and accelerates plant cell division for vigorous growth
2)、Enhances absorption and utilization of fertilizers and micronutrients
3)、Stimulates seed germination, root development, and strong stem and leaf growth
4)、Improves plant resistance to drought, cold, and disease stress
5)、Water-soluble and easy to mix with fertilizers or other agro-inputs for efficient application
Applications:
1)、Horticulture and agriculture: promotes healthy growth and yield in fruits, vegetables, and field crops
2)、Seed soaking: improves germination rate and early-stage root formation
3)、Foliar and soil application: enhances nutrient uptake and overall plant vitality
4)、Nurseries and greenhouses: boosts young plant establishment and stress tolerance
5)、Compatible with most fertilizers and pesticides, except strong alkaline formulations
Recommended Dosage:
1)、Foliar spray: 2–4 g per 3000 square feet
2)、Soil fertilization: 5–10 g per 3000 square feet
3)、Seedling or root treatment: dilute to 1 g/L solution
4)、Can be mixed at 0.1%–0.5% concentration with other water-soluble fertilizers or used alone at 1:500–1000 dilution
Agriculture grade – not intended for food or pharmaceutical use.