Optima Leaf-Zn+ is a liquid foliar fertiliser based on zinc that has been 100% complexed with hepta gluconic acid (HGA).
Zinc is important for the production of auxins - plant hormones which govern leaf size. Leaf size determines the efficiency of photosynthesis so, in this context, zinc is one of the most important trace elements.
Optima Leaf+ -Range
Optima Leaf-Zn+ 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 zinc
- An essential element for many plant processes.
- Important element for root growth.
- Plays an important role in the formation and activity of chlorophyll.
Possible causes of zinc deficiency in the plant
- Soils with a high pH.
- Light, sandy soils.
High phosphate and calcium contents inhibit zinc availability.
Advantages
- Delivers zinc in an organically complexed form.
- Ensures efficient uptake and translocation of minerals.
- Product approved for organic agriculture and horticulture in compliance with regulations EC 2018-848 & EC 2021-1165.
Zinc (Zn) water soluble | 69 g/L |
Iron (Fe) water soluble | 3.8 g/L |
Manganese (Mn) water soluble | 1.8 g/L |
Boron (B) water soluble | 0.38 g/L |
Copper (Cu) water soluble | 0.17 g/L |
Molydenum (Mo) water soluble | 0.13 g/L |
Complexed Zn, Cu, Fe, Mn | 100 % |
Stability range pH | 3.0 - 12.0 |
Specific gravity | 1,28 kg/L |
pH product | 5.5 – 6.5 |
Appearance | Brown liquid |
Packaging
Available in 17.5 litre containers.
EC Fertiliser
Foliar application (maximum concentration 1:100, 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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