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    yellow bars on leaves

    Hello All
    I have my 4 plants and they are growing really well but I am starting to get yellowing on the leafs. they are about 3 feet in height and I have light about 18 inches above plants
    I turned light down to 50%. Any help would be appreciated
    Thanks

    #2
    Pics are helpful
    WHAT???
    5x5 grow space
    900w of Vero's and F-strips
    4-17gal totes self-made UC system.

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      #3

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        #4
        This is what I have happening

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          #5
          Magnesium is my proposal, look leaf symptoms up - under magnesium
          Just because people are over 50 doesn’t mean they know everything.
          You can teach a old dog new tricks - But it will still think the old ways are the “best” lol

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            #6

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            • CaptainWiese91
              CaptainWiese91 commented
              Editing a comment
              Really hard to see anything with that light on - and from that angle.
              Looks like your plants is really close to your light ?! Many tips are burned - from what I can see

            #7
            here is a photo of plant

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              #8
              The light is about 18 inches from plants

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              • CaptainWiese91
                CaptainWiese91 commented
                Editing a comment
                You have some symptoms there - for sure my friend. How much nutrition are you giving the plant ? And did you add any magnesium? Or cal?

              #9
              I have added no fertilizer as of yet. I ordered but have not received yet

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              • CaptainWiese91
                CaptainWiese91 commented
                Editing a comment
                What kind of soil are you using ? So no fertilizer means also no Cal-mag supplements?
                Hard to see the true color of the whole plant on that HPS light. But I definitely see some “clawing” - indicates nitrogen toxicity.

              #10
              Click image for larger version

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              Nute Burn IMO pour 3 times the pot volume of air temp Ph'ed water
              at days end so they recover over night(drain out)
              to continue in the morning
              no nute for 2 weeks or until you see a correction

              good luck

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              • CaptainWiese91
                CaptainWiese91 commented
                Editing a comment
                He hasn’t used any nutes...........

              #11
              If he flush the plant and have no fertilizer, he is also flushing everting else out of the pot. Then he have no nutrition at all in the pot. I wouldn’t flush. But maybe water to make some run off water..
              Just because people are over 50 doesn’t mean they know everything.
              You can teach a old dog new tricks - But it will still think the old ways are the “best” lol

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                #12
                organic soil

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                • CaptainWiese91
                  CaptainWiese91 commented
                  Editing a comment
                  You definitely need cal mag.
                  But organic soil - it should do the PH metering itself.
                  You have nitrogen toxicity- you need to feed it more water so you get run off water.
                  If you choose to flush the plants - you need organic fertilizer after to give the plant the right nutrients again - without nitrogen in it. Because you have plenty of it in the plant what I think.

                #13
                where can I buy cal-mag

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                • CaptainWiese91
                  CaptainWiese91 commented
                  Editing a comment
                  I don’t know where you live, but in normal grow shops. And on the internet of course. Remember to water only - with run off. And you told you are waiting for organic fertilizer/ so no problem there - just watch out for the nitrogen toxicity 👍🏻

                #14
                Thanks guys
                ordered some cal-mag from amazon the sensi brand

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