Nitrogen Deficiency?

Hi any help would be appreciated! Plants are in 7gallon pots watered about every 3 days. Feed nutrients every time about 600-800ppm using full line of roots organics as seen on the attached post. Getting some lower yellowing, and a few large fan leaves that are high are getting yellow and crispy at the ends. I was thinking it may be a nitrogen deficiency. The soil they are in is sohum, but it’s spent as plants were stunted for a while when they were smaller so they have been in veg for a long time.

Both plants have the same issue at the bottom but the larger of the two has no upper leaves showing anything. Two different strains, one with the larger leaves and the upper yellowed leaves is Gorilla glue. Other one is maid of honor.

Thanks.

How I’m feeding.

Anyone?
this is them now. I just flipped to flower also about a week ago. I forgot to mention that.

Research magnesium deficiency.
Either due to lack of nutrition or a lockout.
You say about every 3 days..when needed or on schedule?
FF

What did this deficiency end up being, and how did you cure it. I believe I have a similar issue. Thanks!!

Mcfinema said:

What did this deficiency end up being, and how did you cure it. I believe I have a similar issue. Thanks!!

Click to expand...

It was lockout, I flushed the plants and resumed the nutrient feeding schedule and all was well man!