N deficiency or something else?

[darklordmelkor]

hello.

auto white widow end of first week of flowering. lower leaves are yellowing and easy to pull off. mostly old little leaves but also two big fan leaves are too. here is pics.

and almost all leaf tips are yellowing too.

medium: soil
Schedule: 20/4
nutes: advanced nutrients grow micro bloom

 

[NorthernOrganics]

If you are feeding bottled nutrients in soil a common issue is salt buildup in the soil. Are you watering to runoff? How much are you feeding?

 

[darklordmelkor]

If you are feeding bottled nutrients in soil a common issue is salt buildup in the soil. Are you watering to runoff? How much are you feeding?

watering until i get good amount of run off. 6 liters of water for 20 liters pot each watering. using company chart. for entire bloom 4ml each grow micro bloom fertilizer. pH is 6.3 and not chlorinated water.