Optima Leaf-Cu+ is a liquid foliar fertiliser based on copper that has been 100% complexed with hepta gluconic acid (HGA). Copper strengthens cells and has a positive effect on sugar and starch production.
Optima Leaf+ Range
Optima Leaf-Cu+ is part of the Optima Leaf range, a line of foliar fertilisers that are efficiently absorbed by the crop. The '+' stands for the presence of supplement trace elements. These prevent one-sided fertilisation and demonstrably increase the effectiveness of the product.
Functions of copper
- Essential in the seed and fruit formation stage.
- Essential for chlorophyll formation and photosynthesis.
- Important for strong, flexible plant cells.
- Positive influence on the starch content, sugar content and flavour of fruit.
Possible causes of copper deficiency in plants
- Low copper levels in the soil.
- Soils with a high organic matter content fix copper which reduces its availability for the crops.
- Too much phosphate and nitrogen in the soil prevent the copper uptake in the crop.
- A high soil pH reduces the availability of copper.
Advantages
- Delivers copper in an organically complexed form.
- Ensures efficient uptake and translocation of copper.
- Enrichi aux oligo-éléments.
- Product toegelaten in de biologische land- en tuinbouw conform de reglementen : EU 2018-848 & EU 2021-1165 .
Copper (Cu) water soluble | 45 g/kg |
Iron (Fe) water soluble | 3 g/kg |
Manganese (Mn) water soluble | 1 g/kg |
Boron (B) water soluble | 0,3 g/kg |
Zinc (Zn) water soluble | 0,25 g/kg |
Molybdenum (Mo) water soluble | 0,1 g/kg |
Complexed Cu, Fe, Mn, Zn | 100 % |
Stability range pH | 3,0 - 12,0 |
Specific gravity | 1,2 |
pH product | 7,5 - 8,5 |
Appearance | Dark green liquid |
Packaging
Available in 17.5 litre containers.
EC Fertiliser
Foliar application (maximum concentration 1:200, unless stated otherwise)
Arable crops:
1.5 litres per hectare.
2-5 per year, during leaf development.
Tree nursery, vineyards, (small) fruits:
1.5 litres per hectare.
4-6 per year, during leaf development.
Lawn and pasture:
1.5 litres per hectare.
1-2 per year, during leaf development.
Forestry and plant nursery:
1.5 litres per hectare.
4-6 per year, during leaf development.
Ornamental crops:
1.5 litres per hectare.
4-6 per year, during leaf development.
Vegetables and strawberries:
1.5 litres per hectare.
2-6 per year, during leaf development.
Fertigation application:
Standard dosage all crops:
2.0 litres per hectare, every 2 weeks, as required.
- Shake or stir well before use
- Store in a cool dry place away from direct sunlight. This product has been tested and can be stored safely at temperatures from 5°C to 25°C. Crystallisation and/or sedimentation may occur below 5°C.
- Apply under suitable spraying conditions (e.g. temperature, humidity, wind speed). Do not treat if the temperature is >25°C or if it might rise to >25°C in the hours after application. Preferably perform the treatment at the end of the day. Do not apply product close to harvesting.
- Miscibility and/or efficacy cannot be guaranteed when combined with any other agent. Before mixing, it is recommended to perform a test on a small scale.
- Do not mix with other products in pure, undiluted form. Product is stable at pH 3.0 - 12.0. In combination with products containing phosphate, always test for combinability first.
- We recommend carrying out a trial application on a small area first, before applying to the entire plot.
- The shelf life of the product is stated on the label. As long as the guidelines for storage are followed the expiry date (BB) on the label is guaranteed.
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