If someone can tell me what that burning of the edges of my leaves on that photo is, I would appreciate it. It has happened with each of my hydro grows in the later part of harvest. First grow was Harijuana and now this grow of Extrema. Both strains are from sannieshop. Maybe it's a strain thing or a ph thing or what. I have 3 gallon pots and the plants are about 6 or 7 feet tall. Maybe the plants are getting root bound. I keep the ppm to a minimum. I have a 100 liter res, but only use enough nutes for 75 liters. I thought this was nute burn with my first grow so I scaled back the nutes, but now I see it's happening again. The lights (2 thousand watters) are 14 inches minimum away. Most of the buds are like 2 feet away and i'm still getting this burn. Doesn't happen on all the girls, but definitely the larger girls. I have been fighting root rot, but I got that under control weeks ago so I'm sure that's not the problem. Any help please.
Leaves turning down, edges yellowing and eventually dying out
- Thread starter sfrenger
- Start date
massah
Well-Known Member
later in flowering nutrients will start getting sucked out of those fan leaves near the colas...they are basically a bank of nutrients to use when it cant get enough up through the stem to support its hunger...its not burn, if anything you just arn't giving it enough nutrients towards the end...especially when you say it mostly happens on the larger plants, larger plants have larger appetites 
What exactly are you using for nutrients to begin with?
What exactly are you using for nutrients to begin with?
Thanks for the response Massah. I am using advanced nutrients 3 part base, plus big bud and overdrive right now. Soo you think it may go away if I up the dosage? I just changed out my res, but I can surely adjust the water. I'm using the ph ppm perfect formulas so they have ph buffers in the mix. I'm not sure how this affects the water, but I will just add the additional nutrients to make up for the extra 25 liters. However, just so you know, I had this problem with my first grow (this is my second grow) and thought it was over nute so I have been using less for my second grow and this problem didn't start until later this time around. I think the last time it started in like week 5 and progressed through the grow. Have you had this issue yourself?
maps84
Well-Known Member
Oh dude, please switch to Bonanicare's or Canna line. I'm also growing sannies gear with great results. I ran my tests so I'm just not bashing AN. it's proven ME it suck balls on its own! I had nothing but trouble with that brand which I bough when I was a n00b as it was the most easy and promising choice. The results were similar to yours. Didn't know if it was burn, or a def or PH or what the heck was happening. So I decided to try all brands and found than even GH Flora line is more reliable. IDC if it works for some people but it's expensive and it burns plants, so it's not going into my garden. Me personal Experience.
Shit masp, every person i know that had problems with a.n. switched to something else then ended up back on a.n. The explosive growth I get from them is unmistakable so it's hard for me to give that up. What I will probably do is start losing some of the additives, but that 3 part is awesome. My ppm is lower than is recomended (sp) so it has to be something else. I'm completely rebuilding my hydro room after this harvest in a couple weeks before i start my super lemon haze. I'm going from 3 gal buckets to 5 gal. buckets, i'm going from 1/2 inch lines to 3/4 inch, I'm going from 1/8" emitters to 1/4", and i bought some killer air stones for the res. I'm hoping that these ladies are just getting stressed because i let them get too big. I changed out the res yesterday so we'll see if that helped the plants or hurt them even more. Won't know for a couple of days though. Wish me luck.
maps84
Well-Known Member
I'm not saying it doesn't work.. For me it wasn't reliable, and it's not the best out there like u said that's for sure, I'll upload a picture of my nutes shelf so you know I'm not just talking bs
Edit: Top of my list
Canna Aqua line
Bonicare PBP
Vitalink
Dyna Grow
All grew beautiful plants and huge crops
I spend lots of time making my environment perfect, can't afford my nutes messing up too constantly.
Masp, I'll have to keep an eye on this thread. I'm going to give the a.n. line one more try after I change up my room. If changing the room doesn't help, then I will simply have to switch to a different nute line because there will be no other excuses other than the Advanced Nutrients I'm using being shit.
Indicator
Active Member
Guttation burn due to calcium deficiency. Search: transpiration, guttation, and calcium. Used to have a link, no more. Anyway, I had it before, could literally see salt crystals on leaf edges at times. Just upped the calcium as I got worried about bud rot. Crises averted.
JCashman
Well-Known Member
this^^
but if you're giving it calcium, make sure your PH levels aren't jacked, or else the calcium may not be getting absorbed by the roots.
Interesting Indicator. So what you're saying is that I should just increase my micro or add some cal/mag to my res. since I'm using a 3 part (micro nutes, grow, and bloom) regimen in my hydro? The info I found says that guttation is caused by high root pressure. I suppose this comes back to my 3 gallon pots possibly being the culprit. I will go throw some cal/mag in the res right now.
Well I'm using the ph perfect formula from A.N. I was adjusting the ph of my water with the first grow and I was told to stop doing that. I don't even check the ph any more. I just added some cal mag. Lets see if that fixes the problem.
Indicator
Active Member
As Cashman said... mind your Ph and your good. I work in soil, so it happened to me in the last three weeks. My soil was too acidic after two months in the pot; didn't lime it to start. In soil it helps to water early in the "day" cycle. That way they don't go to bed with excessively wet feet= root pressure. I imagine in hydro you would want to feed calcium early (at lights on) as well.
Well that's the whole reason I started using the A.N. Ph PPM perfect system. I didn't want to have to deal with that ph bullshit. According to your post it's starting to sould like all this is caused from my roots not having enough space in those 3 gallon pots and from them not draining well. I'll have to go pull the lady up tonight and see how her roots are looking. This is not going to be an easy task mind you. I have netting across the top of the canopy for support and the girl is right in the middle of the grow room. I think I need a pygmie to come to work for me. Thanks for the input.
Yea, I actually vegged mine until they were 2 feet tall. I figured I needed the extra time since I only ended up with 6 ladies. I have 9 female super lemon haze and 3 hybrids my buddy crossed with a couple of his favorite strains. I better flip them when they get no bigger than 12 inches. Thanks for the great info.
Holy shit, checked the plants that are having this problem. Roots are completely filled from bottom of 3 gallon pot all the way up to my 8 inch net pot. No fucking wonder I keep having these problems.
massah
Well-Known Member
LOL I think its time for some 5gallon pots eh?
maps84
Well-Known Member
Man even GH has PH buffering don't fall for the "PH perfect" scam. You can't afford to just rely on the nutes ever especially while you're learning to grow IMO, and l think that you've proven it to yourself.
On the other hand, size of the pot becomes a problem when you see sings of root bound (Chlorosis), you don't have that going on. If you're set on rootbound and think you need to transplant to a bigger pot, DON'T, just rise the plant a bit and add perlite to the bottom, there's always extra space in the top as the ground is settled from past waterings. Shake your pots, always keep it loose, it a healthy practice. If your finger can't go through the earth on the edges then definitely it's too crowded for the roots and you need to intervene.
It could be Ca-Mg related like suggested but not a burn, adding a supplement or doing drastic changes this far in the game could be detrimental for taste and resin production and yield. So try not to push it... Good luck