so I realized some browning on the leaves last week, I posted the photos and everyone thought that It's potassium deficiency. I gave the plant fertilizer anyway but browning got worse and the leaves got super wrinkly and completely dried up. They are so dry they look like they have been dried up for years. at first it was just the top leaves. but now even after increasing the distance and removing 150watts of led lights the burn moved down and the lower leaves also seem completely browned and burnt. these are from last week: these are from this week: this is one of the lower leaves lower leaves This is my other plant, the top leaves are turning up, wrinkly and dried up, this is new, I noticed it today I am afraid that this might extend to lower leaves as well in the coming weeks. could this be anything other than light burn? any disease or rot? The only thing is that the other day I realized my grow room humidity is 30%. Could this be a contributing factor to the problem?
How much are u feeding them? Nute burn shows its presence by the TIPS of the leaves going first.. and working inward from the outside and down... just like urs.. I think your burning them friend... Have you considered a flush perhaps? If I saw that on my plants... I’d flush right away. 7x the amount your pot gold is what I would run through. Of PH’ed water if possible Sent from my iPhone using Tapatalk
Stop feeding them if their getting worse friend.. Trust me, nutes are ALLOOOOOT stronger than u think. U should never be using but HALF of what your bottle says.. and that’s at the END of flower. If u can give us more details, lights, medium, schedule, nutes, tent size, all that stuff will help us Help you Sent from my iPhone using Tapatalk
Exactly what Clyde said. It looks like nute burn. I’d flush the plant cut your nutes in half and titrate your way back up to THE PLANTS desired amount not the nutrient company’s. Let your girls tell you what they need. I’d lift your lights a bit during the process just to release any unnecessary stress unless your using all LED then the lights aren’t your problem. I think if your thorough your gonna be surprised how fast she jumps back!! Most importantly Have Fun !!! It’s a beautiful process !!!
light is 1050 watts comprised of led panels. I removed 150watts after I saw the burn symptoms. medium is potting soil + 30% perlite. I usually feed/water/water. when the burn happened I had already flushed. and I hadnt fertilized for a week. before that I had fertilized it with a high potassium/phosphorus fertilizer. non of my other plants had any burn like symptom with the same fertilizer. just one plant. considering this, the nute burn possibility doesnt really make sense. the room size is 120 square feet.
It’s not your lights. Those panels don’t get hot enough. If that’s the only plant that is randomly going deformed this late in their process out of all the rest that have been raised the same way? Throw that fucking thing out !!! Not worth the risk to play dr this late in the cycle. Take what can off of it and get it out of there. Oh and future reference take some of those panels and hang them vertically on the sides of your room so they shine through your plants from above and around them. You’ll turn “popcorn nugs” from the bottom of the plant into boulders.
drying up and turning upwards on the second plant has only happened to 2/3 upper branches and not the whole plant which is more strange. if it is nute burn, shouldnt it affect the whole plant?
so light burn happens only due to heat? really? I have a big fan directed at the led panels. I also have removed the panel in the center to reduce the amount of light that the plant receives. I thought the overall volume of light can also burn your plant. this is the only plant with this problem. but my other plants are under HPS.
It’s all about the PPFD just as much as heat. Both burn So do nutes lol Sent from my iPhone using Tapatalk
No. It will effect most of your upper fan leaves. The areas of the plant with the most action happening will show the nute burn. But carries by genetics and nutes and environment and all that :/ Hard to Say... Sent from my iPhone using Tapatalk
It might be mold man... the way that fan leaf looked I posted... looked JUST like the bud rot I got when drying with 70% RH Sent from my iPhone using Tapatalk
She could just have weak genetics, and couldn’t hang. I’d drop those leds on top of your plants so they don’t stretch any farther. I put mine just high enough above the tops when the on cycle starts, that when it ends some are touching the panels. I see the plants look very dense at the basses. Using soil and perlite it’s important to get under there with your clippers and trim out any dead shit or live shit that you know isn’t gonna produce anything. Expose a good extra 6 inches on your stalk. It will increase airflow across the top of your growing medium keeping it cool, and resistant to contamination and reroute the plants energy and nutes to the upper part of the plant where it needs it.
I used a high phosphorous/potassium npk 20 days ago on the first one. then watered a week after that. then a week after that when I flushed. it was burnt then. The second one with the leaves turned upwards, I fertilized it last night with something that contained nitrogen, zink, iron, manganese and sulfur.
What kind of soil are you in? Based on the pics I’d say nute burn due to where it started and then the tips of the leaves. The tips are burnt which leads me to believe the pics where the margins of the leaves are burnt is just nute burn progressing. LED’s won’t cause that type of burn. You’d get bleached tops before they’d get crispy like that. Sent from my iPhone using Grasscity Forum
How many weeks is this strain supposed to flower? Not gonna lie I’m impressed with the quality you’re getting with those blurples. Sent from my iPhone using Grasscity Forum