The company AFOI LEFA OE || LEFASAGRI is active in the import of fertilizers, special nutrition products, bioactive preparations, biostimulants for various crops, and in the distribution of beneficial insects. Modern plant nutrition requires innovative formulations, high scientific training and sustainable environmentally friendly practices.

OREGON (Silicate)


Quelafert Oregon is an aqueous solution of polymerized silicic acid salt. It is suitable for all crops and is applied foliarly or on the ground with irrigation systems. The product is a source of silicon for the growth of plants, it also increases their resistance to biotic and abiotic factors (high and low temperatures, wind, high concentrations of salts and heavy metals), is extremely useful in creating resistant plant tissues, increases the resistance of plants in drought. The silicon contained in the product is also deposited in the walls of the root cells. Applications of Quelafert Oregon reduce leaching levels of nitrogen, phosphorus and potassium, restore soil degradation by increasing the level of fertility.

- Improves photosynthesis and increases brix in all plants.
- Reduces the negative effects of excess aluminum, sodium and manganese.
- Improves plant growth, increases yield and quality.
- Enhances reproduction by improving pollination and increasing pollen fertility.
- Produces an armor-like layer on the outer wall of the bed resulting in stronger, more resilient plants.
- Increases resistance to abiotic and biotic stress .
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Cultivation Instructions for use Dosage
Olive, Citrus Applications during vegetative growth 150-400 ml/100L
Pome fruit, Giant fruit Applications during vegetative growth 150-300 ml/100L
Vine Applications during vegetative growth 150-300 ml/100L
Horticulture Applications during vegetative growth 200-250 ml/100L
Strawberry Applications during vegetative growth 200-250 ml/100L

Combines with the usual formulations except for highly acidic and alkaline ones.
Recommended the performance of compatibility tests before mixing.
It is applied in the coldest hours of the day and immediately after the preparation of the solution.
For spraying in greenhouses, apply the smallest doses

2  fert

Technical Sheet

Fertilizers & Irrigation

Fertilizers & Irrigation

Modern agriculture requires appropriate fertilizers, special nutrients, bioactive and biostimuland products, micro and macro organisms.


Specialised, environmental friendly, water - soluble fertilizers for intensive crops and hydpoponics

Bio Products

We offer, biological, special-nutrient products, which can be ideally used for any crop


Swirskii Mip, Nessidiocoris Mip, Andersoni, Orius, and other beneficial insects as well as Bombinas for pollination

Biostimulants product

Biostimulants products applied to plants with the aim to enhance nutrition efficiency, abiotic stress tolerance and crop quality traits, regardless of its nutrients content