We have worked with CIPC application contractors to develop British Potato Council based systems on a practical scale, for helping distribute CIPC into the crop.
It is important to get the CIPC into contact with the potatoes and not stuck in the roof of the store.
By injecting the CIPC into a covered space between the boxes the fog is forced into the pallet bases of the boxes and then rises into the boxes and crop.
After the application process is complete in that passageway, fans positioned on top of the passageway are run slowly to pull the fog out of the roof space and recirculate it again through the boxes. The fan speed is gradually increased with time using an inverter control device.
Recent research has shown benefits in the distribution of CIPC in bulk stores by slowly injecting gas into the system using the main fans – probably at 20-30% speed – controlled by an inverter.
We position the control of the system adjacent to the CIPC port
Ideally the CIPC is injected upstream of the fans, however in some instances it is not possible, particularly when the fans are mounted on top of the duct.
It is important to check the air distribution in the main duct down each of the laterals on the lower airflows used.
This is done with a vane anemometer within the duct when the fans are running.