EN - How to start irrigation based on radiation sum

EN - How to start irrigation based on radiation sum

  
Question

How to start irrigation based on radiation sum

 Answer 

The picture below shows the recipes settings.



unit phase 2 supply
phase 2 supply time: ViP
The supply time is 3 minutes for every cycle.

EC control EC value: ViP
The EC value is set to 1.5

Example:
Decrease the EC value when we get more radiation. Because the plant needs more water than fertilizer when it is sunny.



pH control: pH value
The pH value is set to 5.5

fertilizer phase 2: number
The ferlizer number 1 is selected

interval: ViP
delay time: ViP
With the interval time and delay you can make your irrigation strategy.
The interval time is the minimum time between 2 cycles. In this case 30 minutes.
The interval time + delay time is the maximum time between 2 cycles. In this case 30 + 60 = 90 minutes.

So on a very sunny day irrigation is constantly starting on radiation sum, only limited bij the interval time.
If 30 minutes is too long between 2 cycles, then you can lower the interval time.

On a very dark day irrigation is starting on time, so after interval time + delay time.
If 90 minutes is too short or too long, then you can change the delay time.

cycles: number
This is the maximum amount of cycles per day

type of start recipe
This recipe is repeated every day

start- and stop conditions
The options "radiation" and "time" are selected


time: start relative to
time: start time
time: stop relative to
time: stop time
The irrigation is allowed for time between 08:00 am to 17:00 pm.

radiation: start relative to
radiation: start time
radiation: stop relative to
radiation: stop time
The irrigation is allowed for radiation sum between 08:00 am to 18:00 pm.

radiation sum start: ViP
radiation threshold start: ViP
Irrigation is starting when the radiation sum is more than 100 J/cm2 and the actual radiation measurement is more than 250 W/m2.

Example:
In the afternoon more frequently starts of irrigation


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