Optima Leaf-Zn

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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.

Composition

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

Application rates

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.

Instructions for use

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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