01Raw material
Rice husks
A renewable agricultural resource refined into high-value materials.
ECO OK turns Vietnamese rice husks into crop solutions, supporting healthier crops and more sustainable seasons.
From nature for a better tomorrow
From husk to value
We start with Vietnamese rice husks — a local resource rich in silica — and turn them into advanced solutions for more productive agriculture.
01Raw material
A renewable agricultural resource refined into high-value materials.
02Transformation
Recovering silica with a focus on efficient resource use.
03Technology
Tailoring materials to each crop’s needs and growing conditions.
04Applications
New value, back where the journey began.
Circular value
From field to innovation, every step creates a new layer of value.

High-tech solution
Nano Product Range
Choose the right products
Farming Cycle
Start
Germination
Growth
Flowering
Fruiting
HarvestAt every growth stage
EcoCycle
Each programme is shaped by the crop, variety, soil and growing conditions — because no single formula fits every season.
Applications
From open fields to modern hydroponics, each solution is adapted to the crop, its growth cycle and the way you farm.
Crop-focused solutions





Field results
Results from field trials across different crops, growing seasons and farming conditions.
Case study library — insights by season & crop

Rice Institute · Can Tho, Vietnam
Key result — OM18 · Summer–Autumn 2023
Healthy roots and sturdy rice stems help resist lodging. Plants remain upright and maintain vigorous growth through the end of the season.

Rice Institute · Winter–Spring 2022–23
Yield — OM18 rice · Winter–Spring 2022–2023
Thicker, greener leaves improve photosynthesis and biomass accumulation. Nutrients are used efficiently to support grain development.

Vinh Thanh · Can Tho
Input optimization — Dai Thom 8 rice · Winter–Spring 2026
Lower fertilizer and crop protection product use eases cultivation costs. Rice plants maintain healthy growth with fewer pest and disease problems.

Dragon fruit trial · Binh Thuan
Yield — Dragon fruit · Binh Thuan
Efficient nutrient uptake and a vigorous canopy support plants during fruit development. Yield and harvest quality improve.

Black pepper trial · Binh Phuoc
Yield — Black pepper · Binh Phuoc
Deeper, healthier roots help pepper plants use nutrients more effectively. Stronger plants experience fewer pest and disease problems and better withstand adverse conditions.

Cam sanh trial · Vinh Long
Yield — Cam sanh · Vinh Long
Orange trees use nutrients more efficiently, reducing fertilizer losses. Healthy leaves sustain photosynthesis and contribute to fruit yield and quality.

Tomato trial · Lam Dong
Yield — Tomato · Lam Dong
Tomato plants develop more evenly, with sturdy stems and vigorous leaves. Improved photosynthesis supports biomass accumulation and fruit development.

Bird’s-eye chili trial · Lam Dong
Yield — Bird’s-eye chili · Lam Dong
Healthy green foliage helps chili plants cope with heat and other adverse conditions. Lower pest and disease pressure reduces reliance on crop protection products.

Durian trial · Dak Lak
Yield — Durian · Dak Lak
Healthy roots help durian trees absorb and metabolize nutrients efficiently. Together with vigorous foliage, this sustains fruit development and harvest quality.
Results apply to specific field trials and do not guarantee the same outcome across all growing conditions.
The ECO OK portfolio
Each product has a distinct role to play throughout the crop’s growth journey.



01 / 03 · 250 ml
Protect and support crop health.
Rice husk bio-based silica. Protect and strengthen plant health.
Bio-Based Nano Silica
Multi-Functional Application
250 ml
02 / 03 · 500 ml
Unlock the strength of roots.
Rice husk bio-based silica. For root development and nutrient efficiency.
Bio-Based Nano Silica
For Root Development
500 ml
03 / 03 · 500 ml
Support photosynthesis.
Advanced foliar biostimulant. Enhances photosynthesis and leaf vitality.
Advanced Foliar Biostimulant
For Leaf Spray
500 ml
Each product has a distinct role to play throughout the crop’s growth journey.
Find your crop solution
Our values
ECO OK supports agriculture through three core values.
Supporting farmers with practical knowledge and better farming solutions to strengthen livelihoods and local communities.
Transforming rice husks into valuable bio-based silica, reducing waste and creating new possibilities through circular innovation.
Bringing science into real-world applications to improve farming efficiency and create long-term value for growers and partners.
Ready for your next season?
For more sustainable agriculture
Talk to the AgriCare team to select the right products and apply EcoCycle effectively to your growing system.

250 ml
Product information · 01 / 03
Rice husk bio-based silica
Protect and strengthen plant health.
Foliar fertilizer · Dilute with water and spray on foliage
Each: 600 ml / 500 L water / ha. Before flowering; 10, 25 and 40 days after fruit set; 30 days before harvest.
Each: 1 L / 500 L water / ha. At 10, 22 and 45 days after sowing.

500 ml
Product information · 02 / 03
Rice husk bio-based silica
For root development and nutrient efficiency.
NPK coating · Hydroponics · Seed treatment
Mix Biosilix well to coat fertilizer granules before field application.
Use at a concentration of 5 ppm SiO₂ for hydroponics or controlled environments.
Use a concentration of 6–9 ppm SiO₂ for seed treatment.
Compatible with most fertilizers and crop protection products. Test on a small scale before tank mixing.

500 ml
Product information · 03 / 03
Advanced foliar biostimulant
Enhances photosynthesis and leaf vitality.
Foliar spray
Adjust for crop type, cultivated variety and growth stage. This is the total amount for one crop cycle.
Increase application during critical growth and crop development stages.
Dilute Biofolix with water at a ratio of 1:500 to 1:800.
Spray evenly onto the leaves; apply before flowering or before harvest.