Peace space travellers.
Following your expert advice, I’ve done some PH measurements. Took a bit of practice calibrating and now I think I have good measurments.
Medium - organic soil
Indoor LED - 1000w 12on/12off
Day 20-25C (68-78F)
Night 17-21C (64-70F)
My 4 plants are flowering for about 11 weeks now. The tendrils are clear, yet when I cut a bud and let it dry a few days the smoke is fantastic. Now that we got that out of the way, I seem to be having some problems and I’m interested in your advice.
First is the Jack Herer plant. In my previous post we determined I overfed the thing (poisoned it?). One and a half weeks ago, I did a massive flush of it, that seemed to have helped some. I say ‘some’ because the plant is not as sprightly as it once was. Two days ago, the PH was 5.3 on this plant and yesterday I watered it and and applied some pelletized lime. Many of the leaves look like the one pictured below (back side is enlarged). Do you think the yellowing looks like a ph problem? or is it pests? both?!
The PH on my other plants (Amnesia Haze & J.H.) ranges from 5.1 to 5.7. I’ve applied some of the lime pellets to those as well. The tips of the leaves on these plants are a little brown, but the plants appear to be in good overall shape. How long would it take for the PH to get back to 6.0?
Environmental issue: My LEDs partially died about a week and a half ago, about one third of the leds went belly up. dead. I since replaced the fixture with a new one, but the plants went about 5 or 6 days without proper light. How detrimental is this sort of interrupted light during the flowering phase? I’m now on my 3rd LED fixture since August (this would be a story for a different post, eh?)
I probably have another week or two of flowering before harvesting (I guess). I will check ph again in a day or two. I’m not sure whether to apply more nutrients, or just water until harvest time.