Optima Leaf-K

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Optima Leaf-K is a direct available potassium foliar fertiliser. Problems with potassium uptake are often related to the pH value of the soil. A high pH inhibits potassium uptake by the roots. And in drought conditions, potassium is not released into the soil, which prevents it from being absorbed. Foliar fertilisation using Optima Leaf-K offers a solution by supplying this important nutrient to the crop.

Optima Leaf-K contains a pH-neutral, very readily available form of potassium. Crops benefit from a supplement of potassium at cold soil temperatures, during drought conditions and at the end of the growing cycle when the crop is bulking tubers, bulbs, grains and fruits. Optima Leaf-K has been specially developed to supply (arable) crops with sufficient potassium through a foliar application in periods with a high potassium demand.

Optima Leaf Range

Optima Leaf-K is part of the Optima Leaf range, a line of organically complexed foliar fertilisers that are very efficiently absorbed by the crop.

Advantages

Contains a high concentration of directly available potassium.
Boosts the yield and size of bulbs, tubers, grains and fruits.
Improves quality and storage life (brix content, firmness).
Increases the plant's reserves (better hardiness).
Better potassium absorption in dry conditions.
Improves the drought resistance of the crop.
Much more effective than adding potassium fertilisers via the soil.
Very low chloride content.

Composition

Nitrogen (N) as urea	44 g/L
Potassium (K₂O)*	350 g/L
Specific gravity	1,48 kg/L
pH	7,0 - 8,0
Conductivity	35 - 50 mS/cm
Appearance	transparent liquid

* = soluble in water

Low in chloride

Application rates

Foliar application (maximum concentration 1:50).

Arable crops:
2 - 5 liter per hectare.
Apply 1 to 5 times as required.

Potatoes
5 liter per hectare.
Apply 3 times during tuber filling.

Grain crops:
2 - 5 liter per hectare.
Apply 1 to 3 times during grain filling.

Rapeseed:
2 - 5 liter per hectare.
Apply 1 to 3 times before winter; Around flowering.

Vegetable crops:
2 - 5 liter per hectare.
Apply 1 to 6 times as required.

Beans:
2 - 5 liter per hectare.
Apply 1 to 3 times from flowering.

Peas:
2 - 5 liter per hectare.
Apply 1 to 3 times from flowering.

Onions:
3 - 5 liter per hectare.
Apply 3 times during bulb filling

Fruit cultivation:
3 - 5 liter per hectare.
Apply 3 to 6 times from fruit set to harvest.

Orchard fruits:
3 - 5 liter per hectare.
Apply 3 to 6 times from fruit set to harvest.

Small fruit:
3 - 5 liter per hectare.
Apply 3 to 6 times from fruit set to harvest.

Strawberries:
3 - 5 liter per hectare.
Apply 3 to 6 times from fruit set to harvest.

Vineyards:
3 - 5 liter per hectare.
Apply 3 to 6 times from fruit set to harvest.

Ornamental crops:
3 - 5 liter per hectare.
Apply 3 to 6 times as required.

Tree nursery:
3 - 5 liter per hectare.
Apply 3 to 6 times during 2nd half of growing season.

Other crops:
2 - 5 liter per hectare.
Apply 1 to 6 times as required.

Packaging

Available in 10, 300 and 1000 litre containers.

CE Fertiliser

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.
Do not spray if copper hydroxide residue is present on the plant.
Never mix pure products together.
We recommend carrying out a trial application on a small area first, before applying to the entire plot.
The best before date is guaranteed if the product is stored according to these guidelines in the unopened original packaging.

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