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Complesal® Essential FocusK

Complesal® FocusK is a foliar fertilizer with a high content of potassium. Additionally it contains nitrogen and phosphorus plus an all-round set in micro-nutrients. Its nutrient composition is especially adapted to potatoes, top fruit, horticultural crops and many other agricultural crops. Due to the harmonized composition, Complesal® FocusK significantly increases yield and quality of the crops and efficiently supplies nutrients during stress conditions.

High level of potassium plus micronutrients 

Key Crops





Nutrient ContentsAdvantagesRate of use
Nutrient contents % w/wg/l
Total nitrogenN565.5

All nutrients are fully water-soluble and the cationic micronutrients (copper, iron, manganese and zinc) are fully chelated by EDTA.

Product Properties:

  • Density: 1.31 g/cm³
  • pH value: 7.2
  • Color: blue
  • Full set of Complesal® Essential Additives: Micro Focus, NPK Focus, Seaweed, Folistick
  • Perfect nutritional set for all kinds of crops
  • Including biostimulants based on seaweed
  • Fast nutrient absorption
  • Applicable in all crops for multiple purposes
  • Adjusting the pH to the neutral point
  • Maximum of nutrients available for the plant
  • Stimulating and strengthening of the natural plant defense system
  • Durability against rain
  • Excellent formulation technology ensures simple product use
  • Joint application with pesticides
  • Quick distribution in the tank water
Type of CropApplication TimeApplication Rate
Cereals4 applications during stem elongation5-10 l/ha
Potatoes3 - 4 sprays:
1. application at stem development
2. - 4. application at 14-day intervals
5-10 l/ha
Sugar and fodder beets3 - 4 sprays between 2-leaf stage and before crop cover5-10 l/ha
Oilseed rape3 - 4 sprays:
1. application when the first 2 leafs appear
2. application at stem elongation
3. application after bud formation
5-10 l/ha
Maize3 - 4 sprays during stem elongation5-10 l/ha
Pulses2 - 3 sprays during early development5-10 l/ha
Vegetables (carrots, cucumber,
leek, melons, onions, tomatoes,
• field cropping

• cultivation under glass
3 sprays: 1. application two weeks after planting or 4 weeks after sowing following applications
in 10-14-day intervals
during seedling production and during the growth period as soil- and foliage-applied
5-10 l/ha

Top fruit2 - 3 sprays
starting after bud break until shortly before bloom
5-6 l/ha
Mango2 sprays during fruit growth3 l/ha
Strawberries3 - 4 sprays starting shortly before flowering and repeating in joint application with the
botrytis sprays
5-6 l/ha
• cultivation under glass
• potted plants
• field plants
substrate or foliar fertilization0.1-0.5%
• propagation plants
• seedlings
• marketable containerized plants
3 - 5 applications to strengthen the plants
soil application as required
flooding or sprinkler irrigation as required
Overview ProductsDATA SHEET (PDF FOCUSK 2MB)

Additives for increased efficiency


The set of seaweed extracts effects a good and stable growth even under stress conditions (heat, drought, salinity, water stress and cold) due to the biostimulating effect of natural plant ingredients from four different algae species. As a result the plant remains stable and strong.


External factors such as rain can cause wash off of the spay film. The new Folistick technology ensures a higher durability against external factors such as rain. Complesal® Folistick guarantees a lasting adhesive on the foliage to increase the uptake of nutrients and active ingredients of the added pesticides.