Help please, my leaves yellow and brown.

Discussion in 'Marijuana Plant Problems' started by Fluffyhead, Jul 11, 2018.

  1.  
    Fluffyhead

    Fluffyhead Member

    Hey guys, I hope you are all well,
    I have started to get yellowing starting from the bottom up, this is my first grow and I’m in week 1 in flower,
    Please have a look at the photos and tell me what you think,
    thank you
    4E8E8761-F9CA-4E6F-A505-0640890719CE.jpeg 337CBC09-C612-40F2-9D44-93A5E22AA648.jpeg 65215DC0-DFDC-479C-9F68-59A0CEB27AB8.jpeg F7C9FB6B-FAFD-4365-A3C9-363AE060C410.jpeg 886CC167-928F-4D53-A54D-744871360ED2.jpeg
     
    Michael Huntherz likes this.
  2.  
    neved

    neved Well-Known Member

    It look likes need some cal/mg .
    Have you add some?
     
  3.  
    Fluffyhead

    Fluffyhead Member

    I added some a few hours ago to see if it will help, I was told Flora 3 part had enough cal mag in it so I didn’t use my cal mag incase I burned the plants but had it on standby,
    Thanks for your reply
     
    Michael Huntherz likes this.
  4.  
    Beachwalker

    Beachwalker Well-Known Member

    What is your growing medium. how are you pHing your water. what are you pHing your water to. how are you using GH3 part. how are you transitioning your nutrients from veg to flower?
     
    blowincherrypie likes this.
  5.  
    Fluffyhead

    Fluffyhead Member

    Rockwool cubes, I ph down after adding nutes to 5.6, in veg I used 4 parts grow, 2 parts micro, 1 part bloom at various ppm though veg it worked well
    In flower week 1 (on day 6 now) I do 3 parts bloom, 2 parts micro, 1 part grow till I reach 900 ppm I added 200mg calmag a few hours ago so now at 1100 ppm
    I had a feeling the ppm was too high but I’m Getting deficiency’s?
    Every week I change the nutes around every 2 weeks I flush with phed water
    I use ro water
     
    Michael Huntherz likes this.
  6.  
    Beachwalker

    Beachwalker Well-Known Member

    On the gh bottle read where it says 'transition to flower', and use 2-2-2 for at least the first two weeks when you flip to 12/12, then change to a full flowering mix
    -good luck!

    * came back to add, where this is your first grow I'd recommend you adhear to the feeding directions on the GH Flora label.

    I use GH too and I very seldom mix any custom nutrient Blend. I pretty much stay right by the label for uniform results every time.

    Also I wouldn't go 5.6, best at 5.8. And you might want to add a milliliter or two of cal-mag per gallon
     
    Last edited: Jul 11, 2018
  7.  
    Fluffyhead

    Fluffyhead Member

    I will make a fresh res then with 222, I have probably shocked my plants jumping straight to bloom amounts
    I have heard if you follow the directions it’s too hot? People usually half?
    And thanks for the advice this is the first I’ve heard about 2 2 2.
     
    Michael Huntherz likes this.
  8.  
    blowincherrypie

    blowincherrypie Well-Known Member

    You gotta get that ph up.. especially now that you flipped. You're getting your Mg and probably P locked out from looks of things. Those tips curling up etc.

    [​IMG]
     
    Tim1987 and Michael Huntherz like this.
  9.  
    Fluffyhead

    Fluffyhead Member

    It looks like it doesn’t matter where the ph range 5.5 to 6.1 is because you would always be locking out something,
    Is this correct?
    Or set to 5.5 and let it drift to 6.1?
    I’m a little confused
     
    Michael Huntherz likes this.
  10.  
    Bernie420

    Bernie420 Well-Known Member

    Not correct set your ph to 5.8 let it drift up if you want but no higher than 6.2 is my advice. then drop it down to 5.8

    You are probably too hot you could just add water till you get to the right ppm you want maybe 700 or so I guess for week one of flower.
    Your plants look npk deficient and cal and mag. I wouldnt try to hit it with too much nitrogen since your in flower
     
  11.  
    blowincherrypie

    blowincherrypie Well-Known Member

    some are more important at different stages. I usually go a little lower in veg and then raise it up some in flower. But ya its good to mix it up every feeding or two. In veg I will do a couple 5.6-5.8 and then a 5.8-6. In bloom Im usually around 6 and then throw in a lower one every few

    I dont really ph every watering I just add a little more/less ph down depending on what Im trying to do. But I do mostly hempy so its a bit more forgiving than some "hydro" set ups
     
    Last edited: Jul 11, 2018
    Michael Huntherz likes this.
  12.  
    raggyb

    raggyb Well-Known Member

    So @blowincherrypie, your posting this got me thinking, because it shows soil has a unstable point at 6.5 pH above which you dont get Mn and Fe, and below which you don't get P/Ca/Mg. So I don't know if you get all or is it none of those 5 at pH6.5 in soil. ouch. and so I don't repeat myself I point you to what I added here, https://www.rollitup.org/t/iron-deficiency.948970/#post-14353877
     
    Michael Huntherz likes this.
  13.  
    Michael Huntherz

    Michael Huntherz Well-Known Member

    I run hydro at 7.0, zero fucks given. Coco, DWC, soil, rockwool, doesn’t matter. I have all of those running on the same nutrient solution right now and my plants are solid lush green. The nutrients make a difference. The ones I use enable a full range of nutrient uptake up to a pH of 8.0.

    Swing anywhere from 5.8 to 6.5 with most products and you’ll be in good shape. I agree with @blowincherrypie, your pH is too low.
     
  14.  
    raggyb

    raggyb Well-Known Member

    What nutrients do you use?
     
    Michael Huntherz likes this.
  15.  
    Michael Huntherz

    Michael Huntherz Well-Known Member

    http://www.jrpeters.com/products_/1...fessional/16391-16-4-17-oasis-hydroponic.html

    I use JR Peters Labs’ Oasis Hydro FeED 16-4-17 as a base. I add Calimagic, MKP and MgSO4 to it, I use tap water (runs between 150-180ppm) or half RO, variably. There’s an overview of it at the end of my signature thread.

    Stretchy-ass bitch up front was sleepy, lol, pic from lights out time this morning.
    Posting pics in case anyone breezing through this thread later wants to talk some shit, lol. There are nine plants there, in a mix of rockwool, soil and coco, all doing great. DWC in the closet has only been running for a week, but they ain’t complaining.
     

    Attached Files:

    Last edited: Jul 11, 2018
    Fluffyhead and raggyb like this.
  16.  
    raggyb

    raggyb Well-Known Member

    Cool. Thanks. Didnt mean to hijack the thread, fluffy , I see your in hydro. It seems at least for pH soil's less of a problem except 6.5 might be a little no mans land for 5 nutrients, so maybe these nutes would help in soil too
     
    Fluffyhead and Michael Huntherz like this.
  17.  
    Michael Huntherz

    Michael Huntherz Well-Known Member

    I intentionally vary my pH within a certain range, typically from 6.0-7.2, they don’t need everything all the time, just regular access to everything. The plants will actually adjust the pH of soil to their liking, to a point. Given decent starting conditions the plants’ root system will alter the soil to gain access to the nutrients they are lacking.

    Yeah, sorry @Fluffyhead, hopefully my rambling is marginally interesting and topical, at least.

    I would flush your rockwool with a bunch of plain pH 6.0 water, really thoroughly, and resume feeding after it dries out a bit.
     
    Last edited: Jul 11, 2018
    raggyb and Fluffyhead like this.
  18.  
    Fluffyhead

    Fluffyhead Member

    You guys are not hijacking anything we can all have a discussion here,
    Thanks for the help I will let you know if the yellowing stops,
    I think I may have veged a bit too long (2 months) I was scared my plants weren’t trimmed up right or prepared, I have not done any defoliation, just trained them to get an even canopy by bending the stems (forgot what it’s called)
    I read too much conflicting info regarding pruning some say it increases yield others said the plants need all leaves to take in the light so I didn’t remove any just to be safe but now I worry the plants are too dense to get any light at all on the lower area,
    Anyone have any advice ?
     
  19.  
    Fluffyhead

    Fluffyhead Member

    I was just wondering how would I know my plants are recovering? Will the yellow leaves turn green again?
    Thanks
     
  20.  
    Bernie420

    Bernie420 Well-Known Member

    Depends on how far gone they are and what is causing it but most of the time they will not recover.
     
    Fluffyhead likes this.

Share This Page