im going in to my fifth week of flowering and ive been fighting a nitro issues for about a 2 weeks. it started with a little yellowing and wilting of the lower fan leaves its getting its getting so bad im having to remove a lot of leaves im afraid this is hurting the bud production and the plants wont make it to harvest. i was useing a 12-17-15 fert, for veggie and i cut back to half when i started 12\12. should i go back to the 12-17-15 or hope they make it throw? any ideas would be great.
Need pics to get an idea of what's going on. If it is indeed a N deficiency, well you need to add some food with N! Simple, I know..but I can't really give you any additional information based on what you've said thus far.
get fert with high nitrogen ratio. 1-0-0 or something to that effect and mix with your bloom booster, you don't want to add much nitrogen late into flowering though. If you only have a couple weeks left just ride it out.