Help plz leaves changin brown

Discussion in 'Sick Plants and Problems' started by d3a1, Mar 6, 2010.

  1. [​IMG]
    I am using a t5
     
  2. Yo I think you may be getting some mild nute burn. I normally get nute burn on the bottom leaves and it works its way up. But can't really be sure, need some more info about the conditions the plant is growing in. Don't give it any nutes or cut back to half and see if it improves.
     
  3. It is in pro mix and it is slowley moving its way up the plant, i only used half of what the nutes recomended n I havent used nutes in like a week cuz i thught was too much nutes too and no improve ment
     
  4. We need all the info on your grow including:

    What type of medium; soil or hydro?
    What brand and type of soil?
    Indoors or outdoors?
    What strain?
    How old are the plants?
    What type of lights and how many watts?
    How far from the lights?
    What is your watering frequency and source of water?
    What, how much and when was it fed? NPK?
    What is the medium/runoff pH and PPM if in hydro?
    What are the temps and humidity in the room?
    What size pots?
    Any bugs? Look real close.
    Any other pertinent info?

    If any of these questions have already been answered please disregard as I cut and paste this for everyone.

    If there is leaf discoloration please TAKE PICTURES WITH ALL GROW LIGHTS OFF, ESPECIALLY HPS. Taking pictures and taking them like this, allows us to further help your problems. \t\t



    I copied this from a sticky found here.
    http://forum.grasscity.com/sick-plants-problems/226015-when-posting-your-sick-plants-questions.html


    Without any information on your setup no one can help you.
     




  5. Pro mix and its a pertilite n vermicuilite
    indoor
    kush bag seed
    3-4 weeks old
    t5 4 bulb
    6 cm from plant top
    just started to use spring water at ph 6
    humidity in room is 50%+
    temp i allways 70-75
    pot is 13 inches at the bottom and about a foot n a half tall now just trans planted it last night into a new pot
     
  6. #6 opinionation, Mar 8, 2010
    Last edited by a moderator: Mar 8, 2010
    As long as your pH is in order, I would call this early signs of calcium or magnesium deficiency. Its a bit early to tell for sure though, I wouldn't do anything drastic.

    Most soil, and definitely a soil-less mix will require you to water with a calcium supplement. Most people use Cal-Mag from Botanicare. I use Meta-k every two waterings and Calplex with every watering.
     
  7. no 1 wana help?...
     
  8. Plants have been moved into my new grow box i made today, I have a 600w lumatek set at 600w, a am using a bulb, grow room humidity is 50%, top of plant from light is 12 inches, using only promix soil, using cal-mag for my magnesium and veg nutrients from my local hydroponic store his own formula. plants have been under light for 3 days now and growing so much faster n better.

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  9. Ok let me see if i can help here....First of all, Flush flush flush!!! If your using one gallon pot's, flush with two gallons of water. If your using two gallon pot's, flush with four gallon's of water, And so on. Also a ph of 6 for a soil grow is a bit low. try changing your ph to 6.8. Also flush your pot's with water that is ph'd at 6.8. and last but not least...back off the nut's for now....There is plenty enough good's in pro-mix to supplement your young one's for the first three week's. Just take it slow at first until you get it all worked out. But once you see your plant's coming out of it and growing and doing better.....juice the hell out of them...lol
     
  10. Sorry but after the flushing try spraying a light dose of avid on them to....Some of that stuff look's like you might have a mite problem...And if not...Spray the fucker's anyway's...It's all about preventive maintanance
     
  11. Flushd the plant out few mins ago so ill post pictures tomorrow and well see if it helpd and im stoping using nutrients but do I still use my calmag?
     
  12. dude is there a radiator near your plants?
     
  13. Nah this was in my closet n just moved now n its perfect now
     
  14. Dude, without being there and seeing exactly whats going on, I'd take a guess and say you are beating the shit out of those plants with that humongous fan that continuously flings them around.
     
  15. Also, I looked this up for you, http://forum.grasscity.com/absolute...s-guide-get-you-started-growing-cannabis.html is a GREAT PAGE. I have the PDF format version of this thread on my computer. And I reference it regularly.

    It indicated the propper PH for soil grow is 6.3-6.8. You need to use PH up or PH down on your water or nute water to get it in the right range.

    Also, you should check the PH of the runoff.

    Also, I think its important to water correctly. You need to water so much that something comes out of the bottom. Make it piss out of the bottom some, every time. This will give you a chance to test the runoff. It doesn't have to piss out a lot, it sure is messy. Wait until the soil feels completely dry before watering again. You don't want to let it sit there completely dry for more than a few hours, but its safe and the plant will thrive if you let the soil become completely dry. This insures you don't have some funification of you PH occuring as that soggy soil sits there and gets shitty. And marijuana plants like to have occasionally dry soil. I've read this somewhere and put it to use in my own grow and agree with it wholeheartedly.

    If you PH runoffs are real high or real low, you can focus on trying to get the ph down by giving it either 6.0 ish or 7.0ish water / nute water, but I would not give it anything that's much out of the way of 6.3 to 6.8. Matter of fact, really, to be safe, you might want to stick to either using 6.3 or 6.8, dependent on if the runoff is low or if the runoff is high, and consistently apply the correct PH until it has corrected.

    If the runoff is higher than 6.8, treat with 6.3 until it has came down. If the runoff is lower than 6.3, treat with 6.8 until it has came up. You want your medium's PH to fluctuate between 6.3 and 6.8 for the entire grow. Its easy for the medium to swing away from the ideal and for the plants to start to look like yours look.

    Oh and something else. ...... I might just comletely suspend the nutrients until the runoff PH is in order on my plants. Then start using your partial strength ramp up regimen.

    Or maybe its the fan.

    Hope to see you get it straightened out. I am not the most experienced grower, but it looks like these tips may be what you need to get those things righted
     

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