aCalsa ST
The latest nutrient, biostimulant, powdered seed treatment for use with potatoes. This product reduces stress by enhanced nutritional support maximising establishment and early season growth.
Return on investment
Chance of a return on investment
Average yield increase
(56:1 ratio 7 trials)
With aCalsa ST we have created a unique calcium phosphite seed treatment for the potato market. It’s a true combination of biostimulant with a very effective calcium nutrient.
- Increased root mass
- Increased root exudation for better nutrient use efficiency
- Significant yield increase (up to 16%)
- Increased bulking rates
- Increase in tuber fresh weight/tuber size (up to 25%)
Increased root production
Increased root activation
Increased exudation
Increased nutrient use efficiency from the soil or fertiliser
Enhanced water management
Decreased drought stress effects due to increased root structure
Increased bulking rates
Increased yield
Increased marketable size
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
Powdered seed treatment
10 Kg
Calcium Phosphite powder
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.
APPLICATION
1.0 kg of aCalsa ST per hectare.
Seed tubers should be free from soil deposits at treatment.
aCalsa ST is applied to seed tubers during the planting process.
Hopper Application
Measure the quantity of aCalsa ST required to treat a hopper load of seed tubers. One quarter fill the hopper with seed tubers, sprinkle over the tubers one quarter of the aCalsa ST, add a further quarter of the seed tubers and sprinkle a further quarter of the aCalsa ST dust over the tubers, and so on in layers until the hopper is completely filled with seed tubers.
On-planter Applicator:
aCalsa ST may be applied directly onto the tubers using powder metering units fitted to the planter hopper. Powder dispenser manufacturers should be consulted as to the Suitability of individual machines for use with aCalsa ST and the appropriate machine setting to ensure the correct application rate per hectare. This method of application reduces risk of operator exposure. These applicators may not be suitable for all automated planters.
Enhanced Numbers Seed/Salad or Shy Varieties
Timing | Product | Dose |
---|---|---|
At Planting | aCalsa ST | 1 kg/ha |
3-4 Leaf Rosette | aCalsa | 1 l/ha |
Tuber Initiation | aCalsa | 2 l/ha |
Onset of Bulking | aCalsa | 2 l/ha |
Marketable Yield Normal Varieties
Timing | Product | Dose |
---|---|---|
At Planting | aCalsa ST | 1 kg/ha |
Tuber Initiation | aCalsa | 2 l/ha |
Onset of Bulking | aCalsa | 2 l/ha |

PEER REVIEW OF STABILISED PHOSPHITE PERFORMANCE
PROOF OF CONCEPT
PRODUCT OVERVIEW
The safest Phosphite formulation available
Easy to use
Convenient dose rate
The most tank mixable formulation available
Affordable to the grower
Reliable robust results