OPTYSIL
Silicon antistressant with biostimulating properties 

Available packages:

  •   1 l
  •   5 l
  •   10 l
  •   20 l
Nutrients Content [g/l] Content in % by mass
Iron (Fe) 24.0  2.0
Silicon dioxide (SiO2) 200.0 16.5
 
FOLIAR FERTILISING
 
Time of application Dose [l/ha]
MAIZE
I – 2-6 leaves unfolded (BBCH 12–16), optimal time is 4 leaves unfolded; 0,5
II – development of leaves – beginning of stem elongation (BBCH 17-31); 0,5
III – stem elongation cont. - beginning of tassel emergence (BBCH 31-51), when the size of plants still allows spraying 0,5
SORGHO
I – development of leaves - tillering (BBCH 13-29); 0,5
II – beginning of stem elongation – beginning of heading (BBCH 31-51); 0,5
III – development of fruit – early milk (BBCH 71-73); 0,5
BEAN, PEA
I – development of leaves and shoots (BBCH 15-29); 0,5
II – inflorescence emergence (BBCH 51-55); 0,5
III – beginning of pods development (BBCH 71–73); 0,5
SUGAR CANE
I – development of leaves (BBCH 13-19); 0,5
II – tillering (BBCH 23-25); 0,5
III – beginning of the intensive stem elongation (BBCH 31-33); 0,5
POTATO
I – 3–6 leaves on main stem unfolded (BBCH 13–16); 0,5
II – forming side shoots - crop cover (BBCH 21–39); 0,5
III–IV – forming and growth of tubers (BBCH 40-49), treatments every 7-14 days 0,5
WHEAT, TRITICALE
autumn: 3–6 leaves (BBCH 13–16); 0,5
spring: I: winter wheat – tillering (BBCH 22–29);
              spring wheat – development of leaves – tillering (BBCH 13–29);
0,5
II – stem elongation  - heading - early stages, (BBCH 30–51); 0,5
III  heading (stage cont.) – early milk (BBCH 51–73), treatments are not recommended between stages BBCH 61–65; 0,5
FEED and MALT BARLEY, OAT
autumn:  3 leaves – 2 tillers detectable (BBCH 13–22); 0,5
spring:
I – winter species  beginning of stem elongation – node 2 stage
    (BBCH  30–32);
   spring species   development of leaves – node 2 stage (BBCH 13–32);
0,5
II – flag leaf fully unrolled – flag leaf sheath swollen (BBCH 39–45); 0,5
III – end of flowering – grain content milky, grains reached final size (BBCH 69–75); 0,5
RICE
I – development of leaves – tillering (BBCH 16-29); 0,5
II – stem elongation early stage (BBCH 31-36); 0,5
III –  beginning of heading (BBCH 51-53); 0,5
COTTON
I – development of leaves – formation of side shoots (BBCH 14-29); 0,5
II – main stem elongation - first floral buds visible (BBCH 31-52); 0,5
II – development of fruits and seeds (BBCH 71-73); 0,5
RYE
autumn:  3 leaves – 2 tillers detectable (BBCH 13–22) 0,5
spring:
I – winter rye  beginning of stem elongation – node 2 stage (BBCH  30–32)
   spring rye  development of leaves – node 2 stage (BBCH 13–32)
0,5
II – flag leaf fully unrolled – beginning of inflorescence emergence (BBCH 39–51) 0,5
III – end of flowering – early milk (BBCH 69–73) 0,5
OILSEED RAPE
autumn : 4–8 leaves (BBCH 14–18); 0,5
spring:
I – after the beginning of vegetation: beginning of side shoots development - 6 internodes visible (BBCH 21–36);
0,5
II-III – development of flower buds – beginning of flowering (BBCH 50–61), treatments every 5-10 days 0,5
IV – full flowering: 50% flowers on main raceme open, older petals falling – development of fruit early stage (BBCH 65-73); 0,5
SOYBEAN
I – development of leaves and shoots (BBCH 13–29); 0,5
II – inflorescence emergence (BBCH 51–59); 0,5
III – beginning of pods development (BBCH 71); 0,5
AVOCADO
I – development of buds (BBCH 51-53); 0,5
II – petals fallen - end of flowering (BBCH 67-69); 0,5
III – development of fruit, early stage (BBCH 71-73); 0,5
CITRUS
I – buds inflorescence (BBCH 51-53); 0,5
II – petals fallen - end of flowering (BBCH 67-69); 0,5
III – development of fruit (BBCH 71-75); 0,5
COFFEE
I – formation of branches (BBCH 21-25); 0,5
II – branches elongation (BBCH 31-39); 0,5
III – development of fruits, early stage (BBCH 71-73); 0,5
MANGO
I – buds inflorescence (BBCH 51-53); 0,5
II – petals fallen - end of flowering (BBCH 67-69); 0,5
III – development of fruit (BBCH 71-75); 0,5
APPLE TREE, PEAR TREE
 I – green bud (BBCH 55-56); 0,5
II – pink / white bud (BBCH 57–59);  0,5
III – petals falling – end of flowering (BBCH 67–69); 0,5
IV–VI – during development of fruit (BBCH 71–75), every 14–21 days. 0,5
SWEET CHERRY, SOUR CHERRY
I – green bud (BBCH 55); 0.5
II – white bud (BBCH 57–59); 0.5
III – flowers fading: majority of petals fallen – end of flowering (BBCH 67–69); 0.5
IV–V – development of fruit (BBCH 71–79), every 14–21 days. 0.5
PLUM, PEACH, APRICOT
I – green bud ((BBCH 55); 0,5
II – white bud (BBCH 57–59); 0,5
III – flowers fading: majority of petals fallen – end of flowering (BBCH 67–69); 0,5
IV–V – development of fruits (BBCH 71–79) every 14–21 days; 0,5
VI – colouring advanced (BBCH 85); 0,5
PAPAYA
I – development of leaves (BBCH 14-19); 0,5
II – development of “stem”, early stage (BBCH 31-33); 0,5
GRAPEVINE
6–8 treatments during vegetation. Perform the treatments every 8–10 days, starting from 2 leaves stage (BBCH 12) till the beginning of fruit development (BBCH 73). Treatments are allowed until BBCH 75 (berries: pea-sized, bunches hang). Last treatment – 15 days before harvest. Avoid mixing with calcium fertilisers. 0,5
STRAWBERRY
I – 3–7  leaves unfolded (BBCH 13–17); 0,5
II – white bud (BBCH 58–59); 0,5
III – beginning of flowering (BBCH 61); 0,5
IV – first fruits set – visible seeds on the receptacle tissue (BBCH 73); 0,5
V – beginning of ripening, most fruit of white colour (BBCH 81); 0,5
PEPPER
I – 3–7 true leaves on main shoot unfolded (BBCH 13–17); 0,5
II – 1-3 flower buds visible ( BBCH 51–53); 0,5
III – 9 and more flower buds visible – beginning of flowering (BBCH 59-61); 0,5
IV – development of fruit (BBCH 71–73); 0,5
TOMATO
I – 3–7 true leaves on main shoot unfolded (BBCH 13–17); 0,5
II – 1–3 inflorescence visible (BBCH 51–53); 0,5
III – beginning of flowering: first flowers open in inflorescence 1-3 (BBCH 61–63); 0,5
IV – development of fruit (BBCH 71–79); 0,5
CUCUMBER
I – 3–5 true leaves unfolded on main stem (BBCH 13–15); 0,5
II – 6–9 true leaves unfolded on main stem (BBCH 16–19); 0,5
III – 1st-2nd flower initial with elongated ovary visible on main stem (BBCH 51–52); 0,5
IV – 6th-7th flower initial with elongated ovary visible on main stem (BBCH 56–57); 0,5
V – after the first harvest (BBCH 71); 0,5
MELON, WATER-MELON
I – 3-5 true leaves on main stem unfolded (BBCH 13-15); 0,5
II - formation of primery side shoots (BBCH 21-29); 0,5
III – 1st-2nd flower initial with elongated ovary visible on main stem (BBCH 51–52); 0,5
BRASISCA VEGETABLES
 I – 3–5 true leaves (BBCH 13–15); 0,5
II –  beginning of development of harvestable vegetative plant parts (BBCH 41); 0,5
III – for cabbage only: development of harvestable vegetative plant parts (BBCH 46-48); 0,5
ROOT VEGETABLES
 I – 3–5 true leaves (BBCH 13–15); 0,5
II – beginning of development of harvestable vegetative plant parts (BBCH 41); 0,5
III – about 3 weeks before harvest, the root reaches 70–80% of final thickness 0,5
BULB VEGETABLES
I – 3–5 leaves clearly visible (BBCH 13–15); 0,5
II – development of leaves (BBCH 16–19); 0,5
III – development of harvestable vegetative plant parts, early stage (BBCH 41–43); 0,5
IV – development of harvestable vegetative plant parts , stage cont. (BBCH 45–47); 0,5
OTHER LEGUMES
I – formation of flower buds (BBCH 51–55); 0,5
II – development of pods (BBCH 71–73) 0,5

FERTIGATION IN GROUND
Recommended concentration of OPTYSIL in ready for fertilising nutrient solution: 35-55 mg SiO2/l (0.18–0.28 l of fertiliser / 1000 l of solution).
For soil-grown plants use every 3–5 cycle of fertigation.
For soilless cultures use for watering mats several times during growth.
Apply separately.

WATERING
Water the plants 3-6 times during vegetative season with a 0.1% solution of the fertiliser (100 ml of fertiliser per 100 l of water).

 




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