Heat, drought and salty water are everyday challenges for growers in the Gulf, North and East Africa, and many parts of Asia. Silicon is one of the most practical tools for building crop resilience — but only when it is supplied in a form plants can absorb. That form is orthosilicic acid.
Key takeaways
- Orthosilicic acid is the form of silicon plants can take up directly.
- Silicon strengthens cell walls, reduces water loss and improves tolerance to heat, drought and salinity.
- Stronger tissues also make it harder for sucking pests and fungal diseases to attack.
- Ideal for greenhouse, open-field and date-palm farms in hot, arid regions.
What is orthosilicic acid?
Silicon is abundant in soil, but almost all of it is locked in sand and minerals that plants cannot use. Plants absorb silicon only as monosilicic or orthosilicic acid (H₄SiO₄) dissolved in soil water. A stabilised liquid such as our Orthosilicic Acid 18% supplies silicon directly in this plant-available form, so crops receive it quickly through drip or foliar application.
How silicon helps crops
- Stronger cell walls — silicon is deposited in leaves and stems, making tissues tougher and more upright.
- Better water management — it can reduce water loss from leaves, helping crops cope with heat and limited irrigation.
- Salinity tolerance — silicon helps plants limit the uptake and damage of sodium, valuable where irrigation water is brackish.
- Pest and disease resistance — tougher tissues are harder for sucking insects and fungal pathogens to penetrate.
- Improved quality — growers often report firmer fruit, better shelf life and reduced lodging in cereals.
Why silicon matters in the Gulf and arid Africa
In the UAE, Saudi Arabia, Oman, Qatar and Kuwait, summer temperatures regularly stress greenhouse and open-field crops, while groundwater used for irrigation is often saline. Sandy desert soils hold little water or nutrients. Similar conditions exist across parts of Kenya, Ethiopia, Nigeria’s north and the Horn of Africa. In these environments silicon is not a luxury but a resilience input, protecting yield during the most demanding months.
Crops that respond well
| Crop group | Typical benefit |
|---|---|
| Tomato, cucumber, pepper (greenhouse) | Heat tolerance, firmer fruit, fewer sucking pests |
| Date palm and fruit trees | Stress tolerance in high heat and salinity |
| Rice, wheat, maize | Stronger stems, less lodging |
| Banana and sugarcane | Sturdier plants, better drought tolerance |
| Strawberry and leafy greens | Improved quality and shelf life |
How to apply orthosilicic acid
Orthosilicic acid can be applied by foliar spray or through drip irrigation. It works best when applied preventively — ahead of hot spells, during early growth and before flowering — rather than after stress has set in. Combine it with liquid calcium for maximum cell-wall strength, and follow recommended rates from your agronomist. For desert soils, pair liquid inputs with natural organic matter to improve water holding.
Supply from Mitra Eco Exports
We export Orthosilicic Acid 18% in sealed HDPE cans and drums, with private-label options and a batch Certificate of Analysis. Ask for a sample to trial on your farm before placing a full order.
Need a quotation?
Tell us the product, quantity and destination port. Our export desk replies within 24 hours with pricing, specifications and sample availability.
Frequently asked questions
Is orthosilicic acid a fertilizer or a biostimulant?
Silicon is classed as a beneficial element. Depending on the country, orthosilicic acid products are registered as fertilizers, beneficial substances or biostimulants. Check your local registration rules.
Can orthosilicic acid be used on all crops?
It is used on a wide range of crops, from vegetables and fruits to cereals and palms. Responses are strongest in silicon-accumulating crops and under stress.
How does silicon help with salinity?
Silicon helps plants limit the uptake and internal damage of sodium and supports better water balance, improving tolerance to saline irrigation water.
Do you ship orthosilicic acid to the UAE and Saudi Arabia?
Yes. We export to the Gulf with full documentation, in cans and drums.
This guide is for general information. Application rates and product choice depend on crop, soil, water quality and local regulations; please consult a qualified agronomist and check registration requirements in your country.