A unique potassium metabolite complex designed to deliver K when conditions may limit soil uptake.

Return on investment
Chance of a return on investment
Average yield increase
(14 trials)

Potassium is an essential plant nutrient required in large amounts – often more than nitrogen. Its enzyme activation (affecting protein, starch and ATP production) is vital for photosynthesis, protein synthesis and many other functions in growth and reproduction.

Potassium is also very important in opening and closing of stomata helping to regulate water vapour, oxygen and carbon dioxide exchange.

  • Increases root growth and improves drought resistance
  • Maintains turgor; reduces water loss and wilting
  • Aids in photosynthesis
  • Required to drive N uptake
  • Reduces respiration, preventing energy losses
  • Enhances translocation of sugars and starch
  • Produces grain rich in starch
  • Increases plants’ protein content
  • Builds cellulose and reduces lodging
  • Helps retard crop diseases

Several key factors affect potassium uptake from the soil – soil moisture (higher moisture usually means greater K availability), soil aeration and oxygen level (air is essential for root respiration and K uptake in saturated soils oxygen levels are very low), soil temperature (increased physiological activity as temperature increases leads to increased K uptake – the optimum is between 15 – 26 °C, at low temperatures uptake is reduced) and the tillage system employed (restricted root growing conditions restrict distribution and therefore access to K).

If any of these symptoms arise then a foliar application of available K will mitigate against any short-term deficiency.

  • Unique complex of a pure potassium solution with Verda technology

  • Verda technology enhances the nutrient use efficiency of N and K

  • No antagonistic anions

  • The liquid humectant formulation gives rapid maximum nutrient uptake and efficiency within the plant

  • Easy to use – convenient dose rate

  • A unique potassium metabolite complex designed to deliver K when conditions may limit soil uptake e.g. low soil temperatures, low soil moisture, low oxygen levels or restricted root growth

  • Liquid foliar treatment

  • 10 litres with an application rate of 1 l/ha

  • Foliar plant nutrient

The complex delivers potassium efficiently through the leaf whilst the 2oxo metabolite in Verda technology drives nutrient use efficiency especially nitrogen. This stimulates root production to allow better access to soil K to help overcome the deficiencies or lack of availability.

Crop Dose Application Timing
Cereals 1.0 L / Ha GS12-16 (2-6 leaves unfolded), GS30-31 (onset stem extension), GS37-39 (flag leaf stage)
Oilseed Rape 1.0 L / Ha GS12 (2 leaf stage), GS13-16 (3-6 leaf stage), GS30-35 (stem extension) and GS59 (green bud, first yellow)
Maize 1.0 L / Ha GS12 (2 leaves unfolded) and GS13-16 (3-6 leaves unfolded)
Potatoes 1.0 – 2.0 L / Ha (depending upon deficiency) Recommended programme: applications from GS21-23 (rosette stage), GS40 (tuber initiation) to GS47 (bulking)
Pulses Recommended programme beans: two applications at GS22 (2nd side shoot visible) and GS51 (1st flower bud visible).

Recommended programme peas: two applications at GS32 (2nd node stage) and GS51 (1st flower bud visible)

Sugar Beet Recommended programme: applications from GS12 (2 leaves unfolded) to GS39 (90% ground cover)

For other crops please contact Unium Bioscience for application details.

Wholly K Biological


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  • 100% clear solution containing no antagonistic anions

  • Fully crop safe

  • Easy to use

  • Convenient dose rate

  • Fully tank mixable

  • Affordable to the grower

  • Reliable robust results