Improve crop phosphorus use efficiency and deliver calcium through the leaf into the plant

In combination with Verda Technology – a complex containing Pyroglutamic Acid (PGA, or as some call it pidolic acid) and another metabolite, they perform two functions – nitrogen assimilation and carbon sequestration creating the best balanced technology.

PGA -was discovered by Dr Pat Unkefer, at the Los Alamos Research Institute, where it won several prestigious awards.

Unium are working closely with Dr Unkefer to bring more leading technologies available to help growers maximise their crop returns.

£88/ha ww £70/ha osr
Return on investment
95% ww 75% osr
Chance of a return on investment
8% ww 11% osr
Average yield increase
(20 ww & 11 osr trials)

Phosphite (phosphonate) has been at the centre of our developments for the last 25 years. Collectively we have developed the best formulations, the safest and most efficacious products to deliver continual performance in a broad range of crops.

With ACALSA we have superseded previous products, outperforming the current market leader by  0.2 t/ha or 1.8%.

They are a true biostimulant delivering a multitude of effects depending upon dose, timing, programme and the crop.

  • Increased root and shoot development
  • Increased root exudation
  • Enhanced frost tolerance
  • Increased nutrient uptake
  • Enhanced secondary metabolism via the shikimic acid pathway to produce folate and amino acids
  • Improved flavours, colours and brix levels
  • Increased grain set and ultimate yield


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  • The safest Phosphite formulation available

  • Easy to use

  • Convenient dose rate

  • The most tank mixable formulation available

  • Affordable to the grower

  • Reliable robust results

  • Improved germination

  • Enhanced crop establishment

  • Increased root and shoot biomass

  • Improved overwintering

  • Increase tillering

  • Enhanced flowering – increased pod set

  • Increased grain set

  • Improved fruit flavours, brix , colour and shelf life

  • Improved yield of 8% from 20 trial comparisons in wheat, 11% from 12 trial comparisons in osr

  • Excellent ROI  cereals 7 : 1, osr 6 : 1 with a 95% for cereals and a 75% for osr chance of greater than break even

  • A unique phosphite formulation designed to deliver phosphonate quickly as well as slow release to give a more metered delivery to the crop. This technology is unique within current phosphite products on the market

  • Liquid foliar suspension  and powdered seed treatment

  • 5 litres

  • Calcium Phosphite solution and suspension combined with Verda technology (a specialist signalling metabolite for enhanced carbon and nitrogen assimilation)

  • Fully tested to deliver the highest safety and performance levels

Phosphites have been rigorously tested and numerous modes of actions have been validated – from inducing a temporary phosphate stress to a crop to increase nutrient assimilation, to gene activation for increased root activity along with enhanced secondary metabolism (shikimic acid pathway) so deliver numerous biostimulant benefits.

Crop Dose Application Timing
Cereals 0.3 L / Ha GS12-14, GS30, GS37-39
Oilseed Rape 0.5 – 0.75 L / Ha GS 14-16, Onset Stem Extension, Green bud
Maize 0.6 L / Ha GS 12-18
Potatoes 1.0 L / Ha Tuber initiation, onset bulking, mid bulking
Pulses 1.0 L / Ha 2-3 node, onset of flowering
Sugar Beet 1.0 L / Ha 2-4 leaf stage, 4-6 leaf stage

For other crops please contact Unium Bioscience for application details.

Calcium phosphite treated winter wheat

Calcium phosphite treated winter wheat

Calcium phosphite treated winter barley

Calcium phosphite treated winter barley