This is week 8 for my grow and have just gone into the second week of flower, photos everyday at 1:00 am ๐. Any photos you would like to see ? Just ask and I will upload them.
Heat Stress This damage looks alot like nutrient burn, except it occurs only at the tops of the plants closest to the lamps. Nutrient Burn the plants have all the nutrients they can possibly use, and thereโs a slight excess. Back off the concentration of the nutrient solution just a touch, and the problem should disappear. PH Problem it is due to the pH being off. Too high or too low a pH can lock up nutrients in the form of undisolvable salts and compounds, some of which are actually toxic to the plants
The leaves have perked back up since I had started to change the ph of my water now, but now the leaf tips are yellow and some are pointing down and some upwards, I have shown the ppm that my reservoir is at.
From what I can tell from the photos it looks like a nitrogen deficiency. You are in the last weeks of flower I donโt really see any reason to increase your nitrogen levels and I would however decrease your daytime air temperature if at all possible. 88ยฐF is pretty high.
Burn it, burn it, what to burn from a plant already burned? :) I hope you to like the lyrics because plant are not enjoying at all the burning. Anyway you loose and i believe as I see it that at the end is going to make you feel very happy. A question, you never defoliate the leaves from the bottom and from the insides of the plants?
@DudeGrowsWeed Okay thank you ๐๐ป it was in the 1000โs before but it has been hot so the plant has been eating a lot more, didnโt know autos preferred lower ppms thank you โ๏ธ๐ป.
Yellow leaf tips and curling are signs of nutrient burn. 690 is not a high ppm, but autos typically prefer lower nutrient levels. You may want to try backing down on nutes. The damaged leaves will not change but you should stop seeing new leaves affected
@DudeGrowsWeed Okay thank you ๐๐ป it was in the 1000โs before but it has been hot so the plant has been eating a lot more, didnโt know autos preferred lower ppms thank you โ๏ธ๐ป.
There looking good, just correct you're PH, also i would get a cover for the top to stop light getting to you're root's which will encourage algae growth among other probs !!
As I told you before, check my diary "Micro Grow 60W Run #1" on the 4th week you can see the same curling of the leaves, well almost every week shows the same symptom
@DevokeOG, wrong pH can have a multitude of symptoms, including weird spots, yellowing, phantom deficiencies (nutes are locked out because the plant can't absorb them in the current pH).
While it is possible that there is a deficiency, it is way more likely that your pH is the root of everything you are seeing.
If you don't have a pH down solution, in the mean time you can try with apple vinegar to lower your pH. Which is what organic growers recommend to use.
@biggreens420, Yes it is a nft setup but I am sure it is a type of hydroponic system, wasn't a setting for it unless it falls under soiless. No I haven't been covering the roots or the rockwool so quite abit of algae has formed onto them, might try that black bin bag method that Athos was talking about xD since I did lose the correx sheet, don't really know how to keep the water cool thoughout the system either but I will do some research on it :).
Burn it, burn it, what to burn from a plant already burned? I hope you to like the lyrics because plant are not enjoying at all the burning. Anyway you loose and i believe as I see it that at the end is going to make you feel very happy. A question, you never defoliate the leaves from the bottom and from the insides of the plants?
Doing well for you're first grow ๐ One hell of a learning curve dude ๐I'm topping for first time and that 's been hard enough ( seems wrong to chop tip off !! ๐ฑ) Not sure about ppm's in hydro, seems very low to me !! It could be as a result of P.H fluctuating out of range, which can cause problems to manifest as almost anything. I don't think it the start of nute burn but i'm no expert with hydro grows pal. Looking at the pics it's hard to tell but it looks like it could do with a higher PPM ( I'm was at 1600 in soil, similar in hydro with Shogun ) but i have VERY limited knowledge on hydro growing and use soil because it is more forgiving !! Sorry i can't be much help bro, but go to http://www.growweedeasy.com
i go there to get info in a way i can understand !!๐ but i'm sure someone on GD will know and answer you're question ๐
Good luck with the rest of the grow !!
@Chameleon,Thank you, i'm not really sure how much ppm I should have either but it seems like everyone else is going for something in the 1000's but i was gonna increase it by 250 every week, should I keep topping my reservoir up with my nutrient to get it back up or do you have to wait for it to go down and just change out my reservoir every week or so? my plant could be still recovering from when my ph was still abit high since I only started to work on it a couple days ago but I don't think that the leaves were curling like that before. I also thought about topping mine but it is almost forbidden to do so with autos but i guess it is too late now that I have started flowering, but don't worry your plant will recover from it and in the long run produce better quality buds instead of letting it do it's thing, your plant it pretty big now from when I last looked at it lmao, good luck with yours too mate ;D