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Thread: Is this a deficiency?

  1. #1

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    Default Is this a deficiency?

    Evening all. Noticed these brown patches coming on some of my leaves and some leaves look a little pale. I will be putting my 2 girls into flower this weekend so wanted to get this little problem sorted.

    This happened in my last run and then half way through flower the plants got really bad like they had a nitrogen deficiency but i had fungus gnats so I thought it was that...

    I'm in a 2 pot rdwc system, I use normal tap water but I always bubble the water for at least 24 hours before it goes into the system.

    Room temps 20-29oC
    Humidity 40-60%
    Ec .8-1.0
    Ph 5.9

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  2. #2

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    Give them a cal-mag foliar feed, should sort it.

    For i am mighty💪🌲

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  4. #3

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    Water in my area

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  5. #4

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    Analysis Typical value UK/EU Limit Units
    Hardness Level Hard No Standard Applies
    Hardness Clark 16.59 No Standard Applies Degrees Clark
    Hardness French 23.70 No Standard Applies French Degrees
    Hardness German 13.27 No Standard Applies German Degrees
    Aluminium 8.13 200 μgAl/l
    Chlorine 0.20 No Standard Applies mg/l
    Coliform bacteria 0 0 no./100ml
    Colour 0.69 20 mg/l Pt/Co
    Conductivity 480.00 2500 μS/cm at 20°C
    E.coli bacteria 0 0 no./100ml
    Fluoride 0.05 1.5 mgF/l
    Iron 11.25 200 μgFe/l
    Manganese 0.83 50 μgMn/l
    Nitrate 27.88 50 mgNO3/l
    Odour 0 Acceptable to customers and no abnormal change Dilution Number
    Pesticides 0 0.5 μg/l
    pH 7.84 6.5 - 9.5 pH Value
    Sodium 17.61 200 mgNa/l
    Taste 0 Acceptable to customers and no abnormal change Dilution Number
    Plumbing Metals
    Copper 0.03 2.0 mgCu/l
    Lead 0.43 10 μgPb/l
    Nickel 1.16 20 μgNi/l

  6. #5

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    Sorry this

  7. #6

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    Quote Originally Posted by thegrower1 View Post
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    Sorry this
    Mix the amount stated on the bottle with water in a spray bottle...If there is no specific instructions for foliar feed then just use the the same amount it states for drench feed...

    Regards BL

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  9. #7

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    Nice one lads thanks a lot!

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    any clues?

    Sent from my SAMSUNG-SM-N910A using Tapatalk

  11. #9

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    Been a week now no improvement few more leafs got the brown spots on them. My left plant is slowing down on growth and looks pale green, right plant looks great?. I added a bit of nitrogen to the system just in case. Iv sprayed them twice now should I add calmag to the system?

    Thanks

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    Ph & ec still the same

  12. #10

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    Added cal-mag to the system but still got worse also started getting burnt tips... think I might of found the problem tho...got the ph 7 buffer out and my ph meter is saying 7.6 even tho I calibrated it only a month ago (think it's f****d)

    Drained and refilled system with fresh ph 5.9 water no cal-mag so see how things go. I will foliar feed tomorrow when lights are off.

    Ec .8
    Ph 5.9
    Water temps 18-19oC
    Room temps 22-30oC
    Humidity 35-50%

    Nice one

    TG

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