Indoor yellowing leafs in Autos

[Tracer Productions]

Sweet lords, I'm glad I found this thread! I know the degree of yellowing I'm getting can't be normal, but it's good to know that others have experienced worrying yellowing & that most other websites are based on photoperiods rather than autos. Both of my grows have gone piss-yellow in Week 7 (from seed). Lush & green on the last day of Week 6 to completely yellow on Day 1 of Week 7. The bud sites fight hard to stay green but the leaves just go yellow so fast...

All my natural nitrogen ferts that I feed throughout the vegetative & preflower phases do nothing to correct it (this time anyway). Checking pH & doing flushes is not helping either. So I'm just going with the flow. It's just so odd to have a healthy plant one day & a bright yellow one the next. I know it's a nitrogen issue because the bottom leaves start getting crunchy & eventually go limp & fall off as this moves its way up the plant. But the yellowing is everywhere all at once even though I did nothing in the days leading up to it. With at least 3 weeks to go until Day 70 (breeder's harvest date), this is not ideal. But maybe at least part of it has to do with the plant's "internal clock". I hope. :smoking:

Can't predict what'll happen if all the fan leaves fall off & just the bud sites are left. Will they go yellow & die too? Would I need to harvest early to prevent total death, or will the buds stay green & fight it out until, say, Week 11?

Here are two pics taken 24 hours apart:

WEEK 6 - Green & healthy

WEEK 7 - 85% Yellow & blah

P.S. - I don't have any actual fertilizers or nitrogen for plants available, so it's either let her grow like this or harvest early. Plus I'm going into Week 8 & it's getting late for high doses of N now.

 

[Tyler_Durden88]

Looks like nute lockout ive had this problem before your leaf tips are pointing down wich usually means nitrogen toxicity in flower but that could be from other factors as well. Do you use cal mag supplement? When I grow in soil cal mag is a must for me. Also have you done a flush to get rid of old nutrient buildup? Yellowing in autos mid to late flower is completely normal but thats to early to be that yellow. Id bet its nute lockout. Unfortunately at this stage of growth in soil its very very hard to fix. Dont harvest early your trichs have no potentcy and you will regret it. Id give it a flush with ph treated water and wait to the soil dries and the roots breathe then give her a low dose flower nutrient dose and see if she comes around. This was a problem that plagued me in my early soil grows and stressed me to no end thats why I went coco coir. With coco if problems happen you can adjust and correct quickly. In soil its hard to fix a problem quickly and in autos time is everything. Lmk what happens. I hope this helps.