nute burn or deficiency ?

[Atilaa]

Now It's 4th week in flowering . It started yellowing slowly but then spreads faster all over plant.
Its my first grow and I can't find it's nuts burn or deficiency . Please help me .
I use biobizz line and soil
I check drainage water pH , it's 6.5

 

[Gond00s]

that looks like one hell of a def how much ppm u feeding it

 

[Atilaa]

that looks like one hell of a def how much ppm u feeding it

I used the biobizz schedule which they send with nutes .
What I have to do ?

 

[Matthewschultz2829]

What nutes are you using, send pic of everything your feeding including type of soil.

 

[Matthewschultz2829]

What nutes are you using, send pic of everything your feeding including type of soil.

And are you auto feeding or feeing your plants by hand?

 

[Atilaa]

I use all products exactly like this chart . Soil is biobizx light mix . I'm watering them every 36 hours . My pot is 14 liter .