Nutrient Burn or deficencies?

lonkbell

New Member
Hey, I've been growing some LSD-25 autoflowers, they're currently around day 33, been growing nicely in some bat mix by house and garden, but I've noticed the lower leaves (namely the bottom 2 node growths) browning and curling, and I cannot identify why for the life of me! It seems like it could be nutrient burn, so I flushed it with ph 6 filtered water yesterday, but I'm not sure what good it did, and I'm thinking now it could potentially be a potassium deficiency? we're using budget version airports, and bio biz nutrients, although we halted use of them as soon as we saw signs of browning on the tips of the leaves. any help would be greatly appreciated!
 

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