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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 foliar fertilisers that are efficiently absorbed by the crop.

Advantages

  • Contains a high concentration of direct available potassium.
  • Boosts the yield and size of the bulbs, tubers, grains and fruits.
  • Improves quality and storage life (brix content, firmness).
  • Increases the plant's reserves (better hardiness)
  • Does not contain any harmful nutrients such as chloride.
  • 6 x more effective than adding potassium fertilisers via the soil.
  • Better potassium uptake in dry conditions.
  • Improves the drought resistance of the crop.
Composition

Nitrogen (N) as urea

29,0 g/kg

Potassium (K2O)*

238,0 g/kg

Specific gravity

1,45

pH

6,0 - 7,0

Conductivity

15 - 25 mS/cm

Appearance

transparent liquid

* = soluble in water

Packaging

Packaging

Available in 17½ and 1000 litre containers.

EC Fertiliser

Application rates

Foliar application (maximum concentration 1:50).

Potatoes, onions:
5 litres per hectare.
Apply 3 x when the tubers or bulbs are starting to swell.

Fruit trees:
3 litres per hectare.
Apply 5 x from fruit set up to 3 weeks before picking.

Fruit trees:
If applied after picking: 5 litres per hectare.

Other crops:
5 litres per hectare.
Apply as required.

Mode d'emploi
  • Bien agiter/mélanger avant l’emploi.
  • Conserver à l’intérieur dans un endroit sombre, à l'abri du gel. Par des températures trop faibles (< 5C), le produit peut cristalliser.
  • Il est conseillé d’appliquer Optima Leaf - K le matin tôt ou le soir, lorsque le soleil n’est pas trop lumineux, afin de réduire le risque de brûlures de feuilles au minimum. Une humidité prolongée de la plante améliore l’absorbtion des nutriments.
  • Ne pas vaporiser en présence de résidus d’hydroxyde de cuivre sur la plante.
  • Ne jamais mélanger les produits purs.
  • Il est recommandé d’effectuer une application de test préalable sur une petite surface avant d'appliquer le produit sur toute la parcelle.
  • La date de péremption est indiquée sur l’étiquette. Tant que les directives d’utilisation de stockage sont respectées, la date de péremption (THT) sur l’étiquette est déterminante.
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200224 JP Optima Leaf K

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