SKU 21749-c

Optysil Intermag (silicon) - silicon mineral plant immunity stimulator

Optysil is a liquid silicon stimulator that strengthens plant cell walls and stimulates their growth and development.

Volume

from€45.10€56.38Halloween −20%

Lowest price in the last 30 days: €56.38€45.10 / 1 lincl. VAT, plus shipping

Volume

from€45.10€56.38Halloween −20%

incl. VAT, plus shipping

Description

Optysil (silicon) - anti-stress agent activating plants' natural immune systems and stimulating their growth and development

Optysil is a liquid silicon immunity stimulator that strengthens plant cell walls and stimulates a range of vital processes in the plant. Recommended for preventive use (before stress conditions occur) in the cultivation of all agricultural and horticultural plant species.

The unique duoSIL formula is the source of Optysil's effectiveness:

The use of the duoSIL formula (active and bioavailable form of silicon) ensures:

high content of silicon forms available to plants,
exceptional stability thanks to the uniqueness of the formula,
very good solubility and compatibility with agrochemicals due to neutral pH.

What are the benefits of using the Optysil stimulator?

increased plant tolerance to adverse growing conditions (drought and cold days) – leaves strengthened by silicon deposition in cell walls show reduced transpiration, enabling plants to better withstand periodic water shortages and low temperatures,
reduced susceptibility of plants to pathogenic pathogen penetration – strengthened cell walls act as a barrier limiting pathogen spread and penetration,
reduced susceptibility of plants to mechanical damage – silicon-strengthened cell walls are less prone to damage during hailstorms, strong winds, or pest feeding,
limitation of biotic stress effects caused by pathogenic pathogens and/or pest attacks,
better quality yield – flexible and silicon-strengthened skins are less prone to cracking and mechanical damage caused by pests and sunburn. Fruits better withstand transport and storage and are more durable in trade,
improved root system development – better phosphorus uptake in the presence of silicon stimulates root system development while limiting uptake of toxic heavy metals.

Optysil - stimulator composition:

Silicon calculated as SiO2: 200 g/l, 16.5% (w/w).

How to use the Optysil stimulator by Intermag?

FOLIAR TREATMENTS (SPRAYING):

Primarily, Optysil Intermag is intended for foliar application. Using Optysil (spray) involves foliar application in the form of an aqueous solution. Optysil can be used together with other products (foliar fertilisers and plant protection products), but only after conducting a compatibility test confirming mixing possibility.

FERTIGATION:

You can also use the product for fertigation. We recommend using a solution at 50–270 ml of stimulator per 1000 l of nutrient solution. Apply this mixture in a separate fertigation cycle or together with fertilisers, but only after prior checking mixing compatibility. For soil crops, apply Optysil every 3-5 fertigation cycles; for soilless crops, apply Optysil to mats several times during the growing season. For strawberry crops, use up to 120 ml of product per 1000 l of nutrient solution.

WATERING:

You can also use the product for watering. We recommend a 0.1% solution. You achieve this concentration by mixing 100 ml of product in 100 l of water. Apply Optysil watering 3–6 times during the growing season.

Optysil stimulator doses can be modified considering individual plant needs and growing conditions.

What can Optysil be mixed with? Optysil mixing

The Optysil mixing table is available in the "downloads" tab.

Optysil – dosage. When to apply Optysil?

Information about Optysil dosage is available in the "dosage" tab. You will also find information on when to apply Optysil and how much to apply per litre.

In which crops can Optysil Intermag be used?

Winter wheat,
Spring wheat,
Winter triticale,
Spring triticale,
Winter feed barley,
Spring feed barley,
Winter malting barley,
Spring malting barley,
Winter rye,
Spring rye,
Oats,
Winter oilseed rape,
Spring oilseed rape,
Sunflower,
Flax,
Maize,
Sugar beet,
Potato,
Soya,
Pea,
Bean,
Broad bean,
Field bean,
Lupin,
Apple tree,
Pear tree,
Sweet cherry,
Sour cherry,
Peach,
Nectarine,
Apricot,
Plum tree,
Gooseberry,
Raspberry,
Currant,
Blueberry,
Grapevine,
Strawberry,
Tomato,
Sweet pepper,
Cucumber,
Pumpkin,
Courgette,
Onion,
Bulb vegetables,
Broccoli,
Cauliflower,
Red cabbage,
Savoy cabbage,
Chinese cabbage,
Brussels sprouts,
Kohlrabi,
Radish,
Kale,
Cabbage vegetables,
Carrot,
Parsley,
Parsnip,
Celery,
Beetroot.

Application and dosage

Crop	How to apply? Dosage	When to apply?
Winter wheat	0.5 l/ha	Application timings: - Autumn: 3–6 leaf stage (optimal), - Spring: tillering (optimal), - Stem elongation (optimal), - Flag leaf stage / beginning of heading (optimal).
Spring wheat	0.5 l/ha	Application timings: - Leaf development – tillering (optimal), - Stem elongation (optimal), - Flag leaf stage / beginning of heading (optional).
Winter triticale	0.5 l/ha	Application timings: - Autumn: 3–6 leaf stage (optimal), - Spring: continuation of tillering (optimal), - Stem elongation (optimal), - Flag leaf stage – up to early milk maturity (optional).
Spring triticale	0.5 l/ha	Application timings: - Leaf development – tillering (optimal), - Stem elongation (optimal), - Flag leaf stage / beginning of heading (optional).
Winter feed barley, malting barley	0.5 l/ha	Application timings: - Autumn: leaf development – up to early tillering (optional), - Spring: beginning of stem elongation (optimal), - Flag leaf stage – up to beginning of awn emergence (optimal), - End of flowering – up to milk grain maturity (optional).
Spring feed barley, malting barley	0.5 l/ha	Application timings: - Leaf development – up to beginning of stem elongation (optimal), - Flag leaf stage – up to beginning of awn emergence (optimal), - End of flowering – up to milk grain maturity (optional).
Winter rye	0.5 l/ha	Application timings: - Autumn: leaf development – up to early tillering (optional), - Spring: beginning of stem elongation (optimal), - Flag leaf stage – up to beginning of heading (optimal), - End of flowering – up to early milk grain maturity (optional).
Spring rye	0.5 l/ha	Application timings: - Leaf development – up to beginning of stem elongation (optimal), - Flag leaf stage – up to beginning of heading (optimal), - End of flowering – up to early milk grain maturity (optional).
Oats	0.5 l/ha	Application timings: - Leaf development – tillering (optimal), - Stem elongation – up to flag leaf stage (optimal), - End of flowering – up to early milk grain maturity (optional).
Winter oilseed rape	0.5 l/ha	Application timings: - Autumn: 4–8 leaf stage (optimal), - Spring: beginning of main shoot growth (optional), - Compact green flower bud (optimal), - Loose green bud – up to beginning of flowering (optimal), - From beginning of petal fall – up to early pod development (optional).
Spring oilseed rape	0.5 l/ha	Application timings: - Leaf development – up to beginning of main shoot growth (optimal), - Compact green flower bud (optimal), - Loose green bud – up to beginning of flowering (optimal), - From beginning of petal fall – up to early pod development (optional).
Sunflower	0.5 l/ha	Application timings: - 4–6 leaf stage (BBCH 14–16) (optimal), - Shoot growth – beginning of bud development (BBCH 30–53) (optimal), - If limited water availability is expected, apply 1–2 additional sprays at 5–7 day intervals (optional).
Flax	0.5 l/ha	Application timings: - 2–4 leaf stage (BBCH 12–14) (optional), - Main shoot growth – budding (BBCH 30–39) (optimal), - If limited water availability is expected, apply 1–2 additional sprays at 5–7 day intervals (optional).
Maize	0.5 l/ha	Application timings: - 2–6 leaf stage (optional, optimal treatment timing is 4 leaves), - 7–8 leaf stage (optimal), - Stem elongation – up to beginning of tassel development (optimal), - Tassel and cob development (optional, optimal if foliar treatment is technically feasible).
Sugar beet	0.5 l/ha	Application timings: - Beginning of leaf development (optimal), - Beginning of row closure (optimal), - Beginning of storage root development (optimal).
Potato - harvested at full maturity	0.5 l/ha	Application timings: - Beginning of shoot and leaf growth (plant height approx. 10 cm) (optional), - Shoot and leaf growth (plant height >15 cm) (optional), - Beginning of tuber formation (optimal), - Tubers reach 70–80% of final mass (optimal).
Soya	0.5 l/ha	Application timings: - Beginning of shoot growth (optimal), - Beginning of flower bud development (optimal), - Beginning of pod and seed development (optional).
Pea, bean, broad bean, field bean	0.5 l/ha	Application timings: - Beginning of shoot growth (optimal), - Beginning of flower bud development (optimal), - Beginning of pod and seed development (optional).
Lupin	0.5 l/ha	Application timings: - Beginning of shoot growth (optimal), - Beginning of flower bud development (optimal), - Beginning of pod and seed development (optional).
Apple tree - orchards without fertigation – young, non-fruiting orchard	0.5 l/ha	Application timings: - Spring: leaf development (optimal), - Spring/summer: main shoot and lateral shoot growth (optimal), - Late summer: end of main shoot elongation growth (optimal).
Apple tree - orchards without fertigation and with fertigation – fruiting orchard	0.5 l/ha	Application timings: - Green bud (optional), - Pink bud (optimal), - End of flowering: most petals fallen (optional), - Beginning of fruit development (optimal), - Fruit reaches 30–50% of typical size (optimal).
Apple tree – tree nurseries – nurseries of trees grafted by budding	0.5 l/ha	Application timings: - 1st year – spring (after rootstock acceptance): beginning of leaf development (optimal), - 1st year – summer (approx. 3–4 weeks after budding): end of shoot and leaf growth (optimal), - 2nd year – spring (after cutting rootstock above the bud union): beginning of shoot and leaf development (optimal), - 2nd year – spring/summer: main shoot and lateral shoot growth (optimal), - 2nd year – late summer: end of main shoot elongation growth (optimal).
Apple tree – tree nurseries – nurseries of trees grafted by grafting	0.5 l/ha	Application timings: - 1st year – spring (after acceptance of grafted rootstocks): beginning of shoot and leaf development (optimal), - 1st year – summer: main shoot growth and leaf development (optimal), - 2nd year – spring (10–14 days after cutting main shoot to 60–65 cm height): beginning of shoot and leaf development (optimal), - 2nd year – spring/summer: main shoot and lateral shoot growth (optimal), - 2nd year – late summer: end of main shoot elongation growth (optimal).
Pear tree – orchards without fertigation – fruiting orchard	0.5 l/ha	Application timings: - Green bud (optional), - White bud (optimal), - End of flowering: most petals fallen (optional), - Beginning of fruit development (optimal), - Fruit reaches 30–50% of typical size (optimal).
Sweet cherry – orchards without fertigation and with fertigation – fruiting orchard	0.5 l/ha	Application timings: - Flower bud development: 1–2 treatments every 5–7 days (optimal), - Fruit set development (optimal), - Fruit reaches approx. half typical size (optimal), - Beginning of fruit ripening (optimal).
Sour cherry, plum tree, peach, nectarine – orchards without fertigation – fruiting orchard	0.5 l/ha	Application timings: - Flower bud development: 1–2 treatments every 5–7 days (optimal), - Fruit set development (optimal), - Fruit reaches approx. half typical size (optimal), - Beginning of fruit ripening (optimal).
Apricot – orchards without fertigation – fruiting orchard	0.5 l/ha	Application timings: - Bud break and flower bud development (optional, treat as optimal when air temperature allows effective application), - Fruit set development (optimal), - Fruit reaches approx. half typical size (optimal), - Beginning of fruit ripening (optimal).
Gooseberry	0.5 l/ha	Application timings: - After vegetation start, during leaf and fruit development, 1–3 treatments every 14–21 days (optimal), - After fruit harvest (optional).
Raspberry – plantations without fertigation – autumn raspberry - varieties fruiting on one-year-old shoots	0.5 l/ha	Application timings: - Shoots reach approx. 1/3 of target length (optimal), - Shoots reach approx. 1/2 of target length (optional), - Beginning of first inflorescence development (optimal), - Beginning of first fruit development (optional), - Fruit growth and ripening – up to first harvest (optimal).
Raspberry – plantations without fertigation – summer raspberry – varieties fruiting on two-year-old shoots	0.5 l/ha	Application timings: - Leaf and shoot development (optional), - Beginning of inflorescence development (optimal), - Beginning of fruit development (optional), - Fruit growth and ripening – up to first harvest (optimal), - Immediately after harvest (optional).
Currant	0.5 l/ha	Application timings: - Leaf and shoot development (BBCH 15–39) (optional), - Closed flower buds – leaf tips beyond flower scales (BBCH 51–54) (optimal), - 90% of fruits formed (BBCH 79) (optimal), - Immediately after fruit harvest, 1–2 treatments every 10–21 days before bud formation for next season (optional).
Blueberry – plantations without fertigation – fruiting plantations	0.5 l/ha	Application timings: - Bud development (optimal), - Inflorescence development up to beginning of flowering (optimal), - Beginning of flowering / beginning of fruit set (optimal), - After harvest (optional).
Grapevine	0.5 l/ha	Application timings: - Beginning of leaf and new shoot development (optimal), - Inflorescence development (optional), - Fruit development – up to pea-sized berries (optimal), - Berries begin to touch each other (optimal), - Beginning of fruit ripening (optimal).
Strawberry - plantations without fertigation – summer-fruiting varieties, plantations not yet fruiting – established in autumn	0.5 l/ha	Application timings: - Spring: leaf and crown development (optimal), - Summer – further vegetative growth and bud formation for next season (optimal).
Strawberry - plantations without fertigation – summer-fruiting varieties, fully fruiting plantations	0.5 l/ha	Application timings: - Spring: after vegetation restart – leaf development (optional), - White bud (optimal), - Beginning of flowering (optional), - Beginning of first fruit development (optimal), - Immediately after first harvest (optimal).
Strawberry - plantations with fertigation – summer-fruiting varieties, plantations established in summer from green potted plants – soil cultivation	0.5 l/ha	Application timings: - Late summer in planting year: further leaf development and bud formation for next season (optimal), - Spring: after vegetation restart (optimal), - Beginning of inflorescence development (optimal), - Beginning of first fruit development (optional), - Fruit growth and ripening (optimal).
Strawberry - plantations with fertigation – summer-fruiting varieties, plantations established in spring from frigo plants – soil cultivation	0.5 l/ha	Application timings: - Leaf and inflorescence development: 2 treatments every 5–10 days (optimal), - Beginning of first fruit development (optional), - Fruit growth and ripening (optimal).
Strawberry – plantations with fertigation – remontant varieties, plantations established in spring from frigo plants. Soil or growing medium cultivation	0.5 l/ha	Application timings: - Leaf development: 2 treatments every 7–14 days (optimal), - Beginning of first fruit development (optional), - Growth and ripening of first fruits (optimal), - Fruiting period: 2–4 treatments every 14–21 days (optimal).
Strawberry – propagation – production of fresh green runners	0.5 l/ha	Application timings: - Spring: leaf development (optimal), - Spring: beginning of runner growth (optional), - Early summer: elongation growth of runners and formation of leaf rosettes on runners (optimal), - Summer: development, growth and rooting of runners (optimal).
Strawberry – propagation – production of potted plants	Depending on application timing: 0.5 l/ha; watering or spraying: 0.05% solution	Application timings: - FIELD MOTHER PLANTATIONS – spring: leaf development (optimal), dosage: 0.5 l/ha, - FIELD MOTHER PLANTATIONS – spring: beginning of runner growth (optional), dosage: 0.5 l/ha, - FIELD MOTHER PLANTATIONS – early summer: elongation growth of runners and formation of leaf rosettes on runners (optimal), dosage: 0.5 l/ha, - POTTED PLANTS: 14th–21st day after planting (optimal), watering or spraying: 0.05% solution.
Strawberry – propagation – production of frigo plants	0.5 l/ha	Application timings: - Spring: leaf development (optimal), - Spring: beginning of runner growth (optional), - Early summer: elongation growth of runners and formation of leaf rosettes on runners (optimal), - Summer: development, growth and rooting of runners (optimal).
Tomato	0.5 l/ha	Application timings: - 8–9 or more fully developed leaves on main shoot (BBCH 18–19) (optimal), - Visible 1st–3rd inflorescence (BBCH 51–53) (optional), - Open first flower on 1st–3rd inflorescence (BBCH 61–63) (optional), - First fruit reached typical size on 1st cluster (BBCH 71) (optional), - First fruit reached typical size on 2nd–3rd cluster (BBCH 72–73) (optimal).
Sweet pepper	0.5 l/ha	Application timings: - 8–9 or more fully developed leaves on main shoot (BBCH 18–19) (optimal), - Visible 9 or more flower buds – beginning of flowering (BBCH 59–61) (optional), - Beginning of fruit development, 1st–3rd fruit reached typical size and shape (BBCH 71–73) (optional), - Fruit development, 4th–6th fruit reached typical size and shape (BBCH 74–76) (optimal).
Cucumber	0.5 l/ha	Application timings: - Developed 3rd–5th true leaf on main shoot (BBCH 13–15) (optimal), - Developed 6–9 or more leaves on main shoot (BBCH 16–19) (optional), - Development of first order lateral shoots (BBCH 21–29) (optimal), - On main shoot visible set of 1st–2nd flower buds on elongated peduncle (BBCH 51–52) (optional), - On main shoot visible set of 6th–7th flower buds on elongated peduncle (BBCH 56–57) (optional), - First fruit on main shoot reached typical shape and harvest size (BBCH 71) (optimal).
Pumpkin, courgette	0.5 l/ha	Application timings: - Developed 4th–9th true leaf on main shoot (BBCH 14–19) (optional), - Development of first order lateral shoots (BBCH 21–29) (optimal), - On main shoot visible set of 1st–2nd flower buds on elongated peduncle (BBCH 51–52) (optimal), - On main shoot visible set of 6th–7th flower buds on elongated peduncle (BBCH 56–57) (optional), - First fruit on main shoot reached typical shape and harvest size (BBCH 71) (optimal).
Bulb vegetables	0.5 l/ha	Application timings: - Clearly visible 3rd–5th leaf (BBCH 13–15) (optional), - Leaf development (BBCH 16–19) (optimal), - Beginning of development of parts intended for harvest (BBCH 41–43) (optimal), - Development of parts intended for harvest (BBCH 45–47) (optimal).
Broccoli, cauliflower	0.5 l/ha	Application timings: - After transplant acceptance – leaf development (optimal), - Leaf growth (optional), - Beginning of head development (optimal).
White, red, savoy cabbage	0.5 l/ha	Application timings: - After transplant acceptance – leaf development (optimal), - Leaf growth (optional), - Beginning of head formation (optimal), - Head reaches approx. 50% of typical size (optimal).
Chinese cabbage	0.5 l/ha	Application timings: - After transplant acceptance – leaf development (optimal), - Leaf growth (optional), - Beginning of head formation (optimal).
Brussels sprouts	0.5 l/ha	Application timings: - After transplant acceptance – leaf development (optimal), - Main shoot and leaf growth (optional), - Beginning of side bud (leaf head) formation (optimal), - Approx. 50% of heads formed (optional).
Kohlrabi	0.5 l/ha	Application timings: - After transplant acceptance – leaf development (optimal), - Beginning of swelling formation (optimal).
Radish	0.5 l/ha	Application timings: - After plant emergence – leaf development (optimal), - Beginning of swelling formation (optimal).
Kale	0.5 l/ha	Application timings: - After transplant acceptance – leaf development (optimal), - Main shoot and leaf growth (optional), - Intensive leaf mass growth (optimal).
Cabbage vegetables	Watering or spraying: 0.1% solution.	Application timings: - Leaf growth (optimal).
Carrot, parsley, parsnip	0.5 l/ha	Application timings: - 3rd–4th true leaf stage (BBCH 13–14) (optional), - 5th leaf / root begins to widen – root reaches 20% of typical diameter (BBCH 15/41–42) (optimal), - Root reaches 30–40% of typical diameter (BBCH 43–44) (optional), - Root reaches 70–80% of typical diameter (BBCH 47–48) (optimal).
Celery	Depending on application timing: 0.5 l/ha; watering or spraying: 0.05% solution	Application timings: - Seedlings: 2nd–3rd true leaf stage (BBCH 12–13) (optimal), watering or spraying: 0.05% solution, - Soil cultivation: 7th–8th leaf stage (BBCH 17–18) (optimal); 9 or more leaves / root begins to widen – root reaches 20% of typical diameter (BBCH 19/41–42) (optional); root reaches 30–40% of typical diameter (BBCH 43–44) (optional); root reaches 50–80% of typical diameter (BBCH 45–48) (optimal), dosage 0.5 l/ha.
Beetroot	0.5 l/ha	Application timings: - 2–4 true leaf stage / 1–2 leaf pairs (BBCH 12–14) (optional), - 5 true leaf stage / beginning of row closure (BBCH 15/31) (optimal), - Initial storage root development, ø >2 cm (BBCH 41–43) (optional), - Root reaches 40–70% of typical diameter (BBCH 44–47) (optimal).