2nd grow
- Thread starter biglac
- Start date
delvite
Well-Known Member
so what happened to them?
Figong
Well-Known Member
Good amount of chlorosis, a bit of a necrotic issue.. multiple tox, (lights too close, foliar w/oil-based just before lights on.. is my guess) and that's just based on 2 pics alone. I would think it's easier to ask what hasn't happened to them. This is by no means a bash, I feel it's a fair statement based on the pics in question.
Figong
Well-Known Member
Soil or hydro? If soil.. the problem is the pH... 6.0 locks out P, which is shown in the stems being reddish in pic #5, as well as yellow lowers, stunted and deformed new growth.. and unless you were giving that cal/mag foliar... it was locked out by the same pH problem that locked out the P. The necrosis I guessed at is reflected in what you've said regarding the pH as well, Mg being locked out causes necrosis.. as well as the reddening of the stems, and the yellow lowers just the same. I can't tell if the twisted growth was caused by other things, or the plants were short on B as well.. which is semi-rare, but could happen from time to time.
Figong
Well-Known Member
Ah ha, ok.. for coco, you'd do better to shoot a tad lower than 6.0 .. 6.0 is the 'far end' and very close to locking out K, it also locks out Ca, Fe, and B right at the 6.0 mark - of which some of the very same symptoms I've mentioned overlap. Here's a pic for a visual representation:
Figong
Well-Known Member
Yes, definitely flush and re-pH.. check canopy top temps as well.. you dont want the lights baking them while they're trying to recover. Nothing foliar unless it's all natural, not oil-based, and mandatory for pest control... next time they get anything.. pH'd water only, go light on the nutes when they're in the feed schedule next, just so they have time to work through this. With issues like this, it's best to let us know as soon as possible.. your yield will suffer for every day you let it lapse, especially when it gets to this point.
Figong
Well-Known Member
We're going to find out, am hoping so.. as long as we're not fighting with pythium they have a solid chance - we'll see how these turn out, and pH needs checked every 8 hours tops until we're sure that there's not massive pH flux given the intake the plants may be requiring.
